Attachment 872851 Details for Bug 1220085

dmesg log from s390x VM z15 factory

dmesg-kcsan.log (text/plain), 297.88 KB, created by Miroslav Franc on 2024-02-19 16:42:26 UTC

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Creator: Miroslav Franc

Created: 2024-02-19 16:42:26 UTC

Size: 297.88 KB

patch

obsolete

>[    0.092401] Linux version 6.7.4-1.g9e758e0-default (geeko@buildhost) (gcc (SUSE Linux) 13.2.1 20240206 [revision 67ac78caf31f7cb3202177e6428a46d829b70f23], GNU ld (GNU Binutils; openSUSE:Factory:zSystems) 2.41.0.20230908-1) #1 SMP Fri Feb 16 13:20:08 UTC 2024 (9e758e0)
>[    0.092432] setup: Linux is running as a z/VM guest operating system in 64-bit mode
>[    0.112045] setup: The maximum memory size is 6144MB
>[    0.112055] setup: Relocating AMODE31 section of size 0x00003000
>[    0.112073] cma: Reserved 4 MiB at 0x0000000100000000 on node -1
>[    0.114360] setup: Reserving 214MB of memory at 5911MB for crashkernel (System RAM: 5930MB)
>[    0.114724] cpu: 4 configured CPUs, 0 standby CPUs
>[    0.114953] Write protected kernel read-only data: 25920k
>[    0.115351] Zone ranges:
>[    0.115355]   DMA      [mem 0x0000000000000000-0x000000007fffffff]
>[    0.115369]   Normal   [mem 0x0000000080000000-0x000000017fffffff]
>[    0.115382] Movable zone start for each node
>[    0.115386] Early memory node ranges
>[    0.115390]   node   0: [mem 0x0000000000000000-0x000000017fffffff]
>[    0.115405] Initmem setup node 0 [mem 0x0000000000000000-0x000000017fffffff]
>[    0.497670] percpu: Embedded 31 pages/cpu s88576 r8192 d30208 u126976
>[    0.497707] pcpu-alloc: s88576 r8192 d30208 u126976 alloc=31*4096
>[    0.497718] pcpu-alloc: [0] 00 [0] 01 [0] 02 [0] 03 [0] 04 [0] 05 [0] 06 [0] 07 
>[    0.497766] pcpu-alloc: [0] 08 [0] 09 [0] 10 [0] 11 [0] 12 [0] 13 [0] 14 [0] 15 
>[    0.497812] pcpu-alloc: [0] 16 [0] 17 [0] 18 [0] 19 [0] 20 [0] 21 [0] 22 [0] 23 
>[    0.497859] pcpu-alloc: [0] 24 [0] 25 [0] 26 [0] 27 [0] 28 [0] 29 [0] 30 [0] 31 
>[    0.497906] pcpu-alloc: [0] 32 [0] 33 [0] 34 [0] 35 [0] 36 [0] 37 [0] 38 [0] 39 
>[    0.497954] pcpu-alloc: [0] 40 [0] 41 [0] 42 [0] 43 [0] 44 [0] 45 [0] 46 [0] 47 
>[    0.498000] pcpu-alloc: [0] 48 [0] 49 [0] 50 [0] 51 [0] 52 [0] 53 [0] 54 [0] 55 
>[    0.498044] pcpu-alloc: [0] 56 [0] 57 [0] 58 [0] 59 [0] 60 [0] 61 [0] 62 [0] 63 
>[    0.498135] Kernel command line: root=UUID=bb87da4e-9ea8-4d87-9c51-d66216e24b85 hvc_iucv=8 TERM=dumb mitigations=auto security=apparmor crashkernel=214M
>[    0.498656] random: crng init done
>[    0.498659] printk: log_buf_len individual max cpu contribution: 32768 bytes
>[    0.498663] printk: log_buf_len total cpu_extra contributions: 2064384 bytes
>[    0.498667] printk: log_buf_len min size: 131072 bytes
>[    0.500458] printk: log_buf_len: 4194304 bytes
>[    0.500462] printk: early log buf free: 128832(98%)
>[    0.501048] Dentry cache hash table entries: 1048576 (order: 11, 8388608 bytes, linear)
>[    0.501339] Inode-cache hash table entries: 524288 (order: 10, 4194304 bytes, linear)
>[    0.501406] Fallback order for Node 0: 0 
>[    0.501417] Built 1 zonelists, mobility grouping on.  Total pages: 1548288
>[    0.501423] Policy zone: Normal
>[    0.501428] mem auto-init: stack:off, heap alloc:off, heap free:off
>[    0.587359] Memory: 5875256K/6291456K available (18592K kernel code, 3104K rwdata, 7328K rodata, 6784K init, 932K bss, 412104K reserved, 4096K cma-reserved)
>[    0.588608] SLUB: HWalign=256, Order=0-3, MinObjects=0, CPUs=64, Nodes=1
>[    0.588672] ftrace: allocating 33817 entries in 133 pages
>[    0.625423] ftrace: allocated 133 pages with 3 groups
>[    0.626440] rcu: Hierarchical RCU implementation.
>[    0.626445] rcu: 	RCU event tracing is enabled.
>[    0.626448] rcu: 	RCU restricting CPUs from NR_CPUS=512 to nr_cpu_ids=64.
>[    0.626454] 	Rude variant of Tasks RCU enabled.
>[    0.626456] 	Tracing variant of Tasks RCU enabled.
>[    0.626459] rcu: RCU calculated value of scheduler-enlistment delay is 30 jiffies.
>[    0.626463] rcu: Adjusting geometry for rcu_fanout_leaf=16, nr_cpu_ids=64
>[    0.634378] NR_IRQS: 3, nr_irqs: 3, preallocated irqs: 3
>[    0.634466] rcu: srcu_init: Setting srcu_struct sizes based on contention.
>[    0.634514] clocksource: tod: mask: 0xffffffffffffffff max_cycles: 0x3b0a9be803b0a9, max_idle_ns: 1805497147909793 ns
>[    0.635007] Console: colour dummy device 80x25
>[    0.638707] printk: legacy console [ttyS0] enabled
>[    0.639757] Calibrating delay loop (skipped)... 3241.69 BogoMIPS preset
>[    0.639765] pid_max: default: 65536 minimum: 512
>[    0.639984] LSM: initializing lsm=lockdown,capability,landlock,yama,apparmor,bpf,integrity
>[    0.640062] landlock: Up and running.
>[    0.640082] Yama: becoming mindful.
>[    0.640169] AppArmor: AppArmor initialized
>[    0.640206] LSM support for eBPF active
>[    0.640363] Mount-cache hash table entries: 16384 (order: 5, 131072 bytes, linear)
>[    0.640406] Mountpoint-cache hash table entries: 16384 (order: 5, 131072 bytes, linear)
>[    0.641269] kcsan: enabled early
>[    0.641281] kcsan: strict mode configured
>[    0.643386] RCU Tasks Rude: Setting shift to 6 and lim to 1 rcu_task_cb_adjust=1.
>[    0.644238] RCU Tasks Trace: Setting shift to 6 and lim to 1 rcu_task_cb_adjust=1.
>[    0.645325] rcu: Hierarchical SRCU implementation.
>[    0.645682] rcu: 	Max phase no-delay instances is 1000.
>[    0.656095] smp: Bringing up secondary CPUs ...
>[    0.662136] smp: Brought up 1 node, 4 CPUs
>[    0.678486] devtmpfs: initialized
>[    0.686028] clocksource: jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 6370867519511994 ns
>[    0.686876] futex hash table entries: 16384 (order: 10, 4194304 bytes, linear)
>[    0.712014] NET: Registered PF_NETLINK/PF_ROUTE protocol family
>[    0.713757] audit: initializing netlink subsys (disabled)
>[    0.714325] audit: type=2000 audit(1708358396.596:1): state=initialized audit_enabled=0 res=1
>[    0.729031] kcsan: selftest: 3/3 tests passed
>[    0.730495] Spectre V2 mitigation: etokens
>[    0.760481] HugeTLB: registered 1.00 MiB page size, pre-allocated 0 pages
>[    0.760720] HugeTLB: 12 KiB vmemmap can be freed for a 1.00 MiB page
>[    0.773526] iommu: Default domain type: Translated
>[    0.773682] iommu: DMA domain TLB invalidation policy: strict mode
>[    0.776657] cio: Partition identifier 0.1
>[    0.864884] NetLabel: Initializing
>[    0.865427] NetLabel:  domain hash size = 128
>[    0.865572] NetLabel:  protocols = UNLABELED CIPSOv4 CALIPSO
>[    0.867115] NetLabel:  unlabeled traffic allowed by default
>[    0.870465] mctp: management component transport protocol core
>[    0.870489] NET: Registered PF_MCTP protocol family
>[    0.875460] VFS: Disk quotas dquot_6.6.0
>[    0.876614] VFS: Dquot-cache hash table entries: 512 (order 0, 4096 bytes)
>[    0.881198] AppArmor: AppArmor Filesystem Enabled
>[    0.903082] NET: Registered PF_INET protocol family
>[    0.903660] IP idents hash table entries: 131072 (order: 8, 1048576 bytes, linear)
>[    0.955164] tcp_listen_portaddr_hash hash table entries: 4096 (order: 4, 65536 bytes, linear)
>[    0.958957] Table-perturb hash table entries: 65536 (order: 6, 262144 bytes, linear)
>[    0.959902] TCP established hash table entries: 65536 (order: 7, 524288 bytes, linear)
>[    0.992519] TCP bind hash table entries: 65536 (order: 9, 2097152 bytes, linear)
>[    1.098102] TCP: Hash tables configured (established 65536 bind 65536)
>[    1.101111] MPTCP token hash table entries: 8192 (order: 5, 196608 bytes, linear)
>[    1.107197] UDP hash table entries: 4096 (order: 5, 131072 bytes, linear)
>[    1.117194] UDP-Lite hash table entries: 4096 (order: 5, 131072 bytes, linear)
>[    1.131558] NET: Registered PF_UNIX/PF_LOCAL protocol family
>[    1.132090] NET: Registered PF_XDP protocol family
>[    1.132515] PCI: CLS 0 bytes, default 256
>[    1.134244] Trying to unpack rootfs image as initramfs...
>[    1.139069] Key type cert_store_key registered
>[    1.155441] Initialise system trusted keyrings
>[    1.155808] Key type blacklist registered
>[    1.156767] workingset: timestamp_bits=45 max_order=21 bucket_order=0
>[    1.156889] zbud: loaded
>[    1.161366] integrity: Platform Keyring initialized
>[    1.180052] ==================================================================
>[    1.180891] BUG: KCSAN: data-race in __hrtimer_run_queues / hrtimer_active
>
>[    1.180927] read to 0x0000000170c43f18 of 8 bytes by interrupt on cpu 1:
>[    1.180947]  hrtimer_active+0x90/0x110
>[    1.180966]  task_tick_fair+0x52/0x3f0
>[    1.180988]  scheduler_tick+0xe6/0x460
>[    1.181007]  update_process_times+0x104/0x120
>[    1.181024]  tick_sched_handle+0x8e/0xd8
>[    1.181044]  tick_nohz_highres_handler+0x82/0x108
>[    1.181065]  __hrtimer_run_queues+0x2d2/0x4d8
>[    1.181083]  hrtimer_interrupt+0x26a/0x528
>[    1.181101]  clock_comparator_work+0x74/0x90
>[    1.181119]  do_IRQ+0x8a/0xa8
>[    1.181137]  do_irq_async+0x7e/0x108
>[    1.181156]  do_ext_irq+0xd2/0x120
>[    1.181176]  ext_int_handler+0xc4/0xf0
>[    1.181197]  __tsan_read_range+0x0/0x1a8
>[    1.181216]  delay_loop+0xa0/0xd0
>[    1.181234]  __udelay+0x36/0x48
>[    1.181252]  kcsan_setup_watchpoint+0x21a/0x568
>[    1.181271]  delay_loop+0x90/0xd0
>[    1.181288]  __udelay+0x36/0x48
>[    1.181306]  kcsan_setup_watchpoint+0x21a/0x568
>[    1.181325]  delay_loop+0x7c/0xd0
>[    1.181343]  __udelay+0x36/0x48
>[    1.181360]  kcsan_setup_watchpoint+0x21a/0x568
>[    1.181379]  delay_loop+0x7c/0xd0
>[    1.181396]  __udelay+0x36/0x48
>[    1.181414]  kcsan_setup_watchpoint+0x21a/0x568
>[    1.181432]  keccakf_round+0x300/0x8f8
>[    1.181455]  crypto_sha3_update+0x142/0x418
>[    1.181475]  crypto_shash_update+0x72/0x90
>[    1.181497]  shash_ahash_update+0xda/0x108
>[    1.181518]  crypto_ahash_update+0x6e/0xe0
>[    1.181538]  test_ahash_vec_cfg+0x556/0xf88
>[    1.181558]  __alg_test_hash.isra.0+0x2cc/0x538
>[    1.712863]  alg_test_hash+0xce/0x258
>[    1.712886]  alg_test+0x240/0xb70
>[    1.712907]  cryptomgr_test+0x4c/0x78
>[    1.712929]  kthread+0x21a/0x230
>[    1.712954]  __ret_from_fork+0x6c/0xb8
>[    1.712978]  ret_from_fork+0xa/0x30
>
>[    1.713019] write to 0x0000000170c43f18 of 8 bytes by interrupt on cpu 0:
>[    1.713046]  __hrtimer_run_queues+0x214/0x4d8
>[    1.713073]  hrtimer_interrupt+0x26a/0x528
>[    1.713099]  clock_comparator_work+0x74/0x90
>[    1.713126]  do_IRQ+0x8a/0xa8
>[    1.713155]  do_irq_async+0x7e/0x108
>[    1.713184]  do_ext_irq+0x96/0x120
>[    1.713214]  ext_int_handler+0xc4/0xf0
>[    1.713245]  psw_idle_exit+0x0/0xa
>[    1.713277]  arch_cpu_idle+0x36/0x48
>[    1.713309]  default_idle_call+0x3c/0x108
>[    1.713365]  do_idle+0xda/0x170
>[    1.713399]  cpu_startup_entry+0x40/0x48
>[    1.713457]  rest_init+0x132/0x148
>[    1.713477]  arch_call_rest_init+0x2c/0x30
>[    1.713496]  start_kernel+0x980/0xde8
>[    1.713512]  startup_continue+0x36/0x40
>
>[    1.713537] Reported by Kernel Concurrency Sanitizer on:
>[    1.713552] CPU: 0 PID: 0 Comm: swapper/0 Not tainted 6.7.4-1.g9e758e0-default #1 openSUSE Tumbleweed (unreleased) b54db25b5c91e1f741a77b8c006738e22884ded0
>[    1.713583] Hardware name: IBM 8561 LT1 400 (z/VM 7.3.0)
>[    1.713599] ==================================================================
>[    3.213754] Key type asymmetric registered
>[    3.213826] Asymmetric key parser 'x509' registered
>[   15.851801] Freeing initrd memory: 18432K
>[   15.978832] Block layer SCSI generic (bsg) driver version 0.4 loaded (major 250)
>[   15.979605] io scheduler mq-deadline registered
>[   15.979691] io scheduler kyber registered
>[   15.980252] io scheduler bfq registered
>[   16.015041] shpchp: Standard Hot Plug PCI Controller Driver version: 0.4
>[   16.024710] mousedev: PS/2 mouse device common for all mice
>[   16.025045] cio: Channel measurement facility initialized using format extended (mode autodetected)
>[   16.028672] drop_monitor: Initializing network drop monitor service
>[   16.572893] NET: Registered PF_INET6 protocol family
>[   16.667719] Segment Routing with IPv6
>[   16.667762] RPL Segment Routing with IPv6
>[   16.668315] In-situ OAM (IOAM) with IPv6
>[   16.699992] registered taskstats version 1
>[   16.709104] Loading compiled-in X.509 certificates
>[   17.666503] Loaded X.509 cert 'Unsupported: 20a8b0cf2d570fb2c20316bf6f6d9681f4981f2c'
>[   17.731691] page_owner is disabled
>[   17.734462] Key type .fscrypt registered
>[   17.734634] Key type fscrypt-provisioning registered
>[   18.081034] Key type encrypted registered
>[   18.081175] AppArmor: AppArmor sha1 policy hashing enabled
>[   18.081418] ima: No TPM chip found, activating TPM-bypass!
>[   18.081750] Loading compiled-in module X.509 certificates
>[   18.090704] Loaded X.509 cert 'Unsupported: 20a8b0cf2d570fb2c20316bf6f6d9681f4981f2c'
>[   18.090912] ima: Allocated hash algorithm: sha256
>[   18.091500] ima: No architecture policies found
>[   18.091701] evm: Initialising EVM extended attributes:
>[   18.091991] evm: security.selinux
>[   18.092231] evm: security.SMACK64 (disabled)
>[   18.092486] evm: security.SMACK64EXEC (disabled)
>[   18.092709] evm: security.SMACK64TRANSMUTE (disabled)
>[   18.092916] evm: security.SMACK64MMAP (disabled)
>[   18.093244] evm: security.apparmor
>[   18.093754] evm: security.ima
>[   18.093881] evm: security.capability
>[   18.094195] evm: HMAC attrs: 0x1
>[   25.673058] clk: Disabling unused clocks
>[   25.677681] Freeing unused kernel image (initmem) memory: 6784K
>[   25.686806] Write protected read-only-after-init data: 128k
>[   25.687048] Run /init as init process
>[   25.687065]   with arguments:
>[   25.687074]     /init
>[   25.687080]   with environment:
>[   25.687085]     HOME=/
>[   25.687204]     TERM=dumb
>[   25.803673] systemd[1]: systemd 254.5+suse.21.g071ac409a0 running in system mode (+PAM +AUDIT +SELINUX +APPARMOR +IMA -SMACK +SECCOMP +GCRYPT +GNUTLS +OPENSSL +ACL +BLKID +CURL +ELFUTILS +FIDO2 +IDN2 -IDN +IPTC +KMOD +LIBCRYPTSETUP +LIBFDISK +PCRE2 +PWQUALITY +P11KIT +QRENCODE +TPM2 +BZIP2 +LZ4 +XZ +ZLIB +ZSTD +BPF_FRAMEWORK -XKBCOMMON -UTMP +SYSVINIT default-hierarchy=unified)
>[   25.804249] systemd[1]: Detected virtualization zvm.
>[   25.804504] systemd[1]: Detected architecture s390x.
>[   25.804730] systemd[1]: Running in initrd.
>[   25.807322] systemd[1]: No hostname configured, using default hostname.
>[   25.808033] systemd[1]: Hostname set to <localhost>.
>[   26.385043] systemd[1]: /usr/lib/systemd/system/plymouth-start.service:15: Unit uses KillMode=none. This is unsafe, as it disables systemd's process lifecycle management for the service. Please update the service to use a safer KillMode=, such as 'mixed' or 'control-group'. Support for KillMode=none is deprecated and will eventually be removed.
>[   26.425373] systemd[1]: Queued start job for default target Initrd Default Target.
>[   26.448848] systemd[1]: Reached target Initrd /usr File System.
>[   26.449842] systemd[1]: Reached target Slice Units.
>[   26.450848] systemd[1]: Reached target Swaps.
>[   26.452152] systemd[1]: Reached target Timer Units.
>[   26.454559] systemd[1]: Listening on Journal Socket (/dev/log).
>[   26.457002] systemd[1]: Listening on Journal Socket.
>[   26.458610] systemd[1]: Listening on udev Control Socket.
>[   26.460102] systemd[1]: Listening on udev Kernel Socket.
>[   26.460790] systemd[1]: Reached target Socket Units.
>[   26.475535] systemd[1]: Starting Create List of Static Device Nodes...
>[   26.502023] systemd[1]: Starting Journal Service...
>[   26.506933] ==================================================================
>[   26.506964] BUG: KCSAN: data-race in ktime_get_real_seconds / timekeeping_advance
>
>[   26.507009] write to 0x000000006f80ca08 of 280 bytes by interrupt on cpu 2:
>[   26.507035]  timekeeping_advance+0x70e/0xdd8
>[   26.507061]  update_wall_time+0x30/0x60
>[   26.507088]  tick_do_update_jiffies64+0x198/0x238
>[   26.507118]  tick_sched_do_timer+0x144/0x148
>[   26.507147]  tick_nohz_highres_handler+0x6e/0x108
>[   26.507177]  __hrtimer_run_queues+0x2d2/0x4d8
>[   26.507206]  hrtimer_interrupt+0x26a/0x528
>[   26.507235]  clock_comparator_work+0x74/0x90
>[   26.507266]  do_IRQ+0x8a/0xa8
>[   26.507299]  do_irq_async+0x7e/0x108
>[   26.507333]  do_ext_irq+0xd2/0x120
>[   26.507367]  ext_int_handler+0xc4/0xf0
>[   26.507412]  delay_loop+0x90/0xd0
>[   26.507429]  __udelay+0x36/0x48
>[   26.507447]  kcsan_setup_watchpoint+0x21a/0x568
>[   26.507468]  step_into+0x48/0xd78
>[   26.507488]  walk_component+0x7e/0x2c8
>[   26.507511]  link_path_walk.part.0.constprop.0+0x406/0x678
>[   26.507536]  path_openat+0x148/0x1c88
>[   26.507558]  do_filp_open+0x13c/0x228
>[   26.507581]  do_sys_openat2+0xd4/0x110
>[   26.507607]  do_sys_open+0x7a/0xc0
>[   26.507633]  __s390x_sys_openat+0x80/0xa0
>[   26.507661]  do_syscall+0x1c6/0x210
>[   26.507689]  __do_syscall+0xc8/0xf0
>[   26.507717]  system_call+0x70/0x98
>
>[   26.507766] read to 0x000000006f80ca78 of 8 bytes by task 203 on cpu 1:
>[   26.507796]  ktime_get_real_seconds+0x32/0x50
>[   26.507828]  key_validate+0x80/0xa0
>[   26.507861]  wait_for_key_construction+0x84/0xc8
>[   26.507896]  lookup_user_key+0x45c/0x970
>[   26.507930]  __do_sys_add_key+0x128/0x2a0
>[   26.507970]  __s390x_sys_add_key+0x90/0xb0
>[   26.507989]  do_syscall+0x1c6/0x210
>[   26.508023]  __do_syscall+0xc8/0xf0
>[   26.508043]  system_call+0x70/0x98
>
>[   26.508075] Reported by Kernel Concurrency Sanitizer on:
>[   26.508093] CPU: 1 PID: 203 Comm: (journald) Not tainted 6.7.4-1.g9e758e0-default #1 openSUSE Tumbleweed (unreleased) b54db25b5c91e1f741a77b8c006738e22884ded0
>[   26.508133] Hardware name: IBM 8561 LT1 400 (z/VM 7.3.0)
>[   26.508157] ==================================================================
>[   26.515679] systemd[1]: Starting Load Kernel Modules...
>[   26.527030] systemd[1]: Starting Virtual Console Setup...
>[   26.534054] systemd[1]: Finished Create List of Static Device Nodes.
>[   26.547554] systemd[1]: Starting Create Static Device Nodes in /dev gracefully...
>[   26.630261] systemd-journald[203]: Collecting audit messages is disabled.
>[   26.666729] ==================================================================
>[   26.666766] BUG: KCSAN: data-race in capable / vtime_account_kernel
>
>[   26.666810] read to 0x000000008453802c of 4 bytes by interrupt on cpu 2:
>[   26.666836]  vtime_account_kernel+0x70/0x178
>[   26.666863]  do_ext_irq+0x46/0x120
>[   26.666892]  ext_int_handler+0xc4/0xf0
>[   26.666923]  __tsan_read_range+0x50/0x1a8
>[   26.666951]  delay_loop+0x7c/0xd0
>[   26.666979]  __udelay+0x36/0x48
>[   26.667007]  kcsan_setup_watchpoint+0x21a/0x568
>[   26.667038]  delay_loop+0x7c/0xd0
>[   26.667067]  __udelay+0x36/0x48
>[   26.667096]  kcsan_setup_watchpoint+0x21a/0x568
>[   26.667128]  capable+0xb6/0xf8
>[   26.667158]  vt_ioctl+0x84/0x18f0
>[   26.667193]  tty_ioctl+0x670/0xd28
>[   26.667227]  __s390x_sys_ioctl+0x108/0x150
>[   26.667278]  do_syscall+0x1c6/0x210
>[   26.667297]  __do_syscall+0xc8/0xf0
>[   26.667330]  system_call+0x70/0x98
>
>[   26.667366] write to 0x000000008453802c of 4 bytes by task 214 on cpu 2:
>[   26.667390]  capable+0xb6/0xf8
>[   26.667412]  vt_ioctl+0x84/0x18f0
>[   26.667437]  tty_ioctl+0x670/0xd28
>[   26.667462]  __s390x_sys_ioctl+0x108/0x150
>[   26.667488]  do_syscall+0x1c6/0x210
>[   26.667513]  __do_syscall+0xc8/0xf0
>[   26.667541]  system_call+0x70/0x98
>
>[   26.667585] Reported by Kernel Concurrency Sanitizer on:
>[   26.667611] CPU: 2 PID: 214 Comm: loadkeys Not tainted 6.7.4-1.g9e758e0-default #1 openSUSE Tumbleweed (unreleased) b54db25b5c91e1f741a77b8c006738e22884ded0
>[   26.667657] Hardware name: IBM 8561 LT1 400 (z/VM 7.3.0)
>[   26.667684] ==================================================================
>[   26.707196] systemd[1]: Started Journal Service.
>[   31.483418] raid6: vx128x8  gen()  1252 MB/s
>[   31.483458] raid6: using algorithm vx128x8 gen() 1252 MB/s
>[   31.540203] raid6: .... xor() 1311 MB/s, rmw enabled
>[   31.540448] raid6: using s390xc recovery algorithm
>[   31.570257] xor: automatically using best checksumming function   xc        
>[   31.616809] alg: No test for crc32be (crc32be-vx)
>[   35.846875] ==================================================================
>[   35.846925] BUG: KCSAN: data-race in __hrtimer_run_queues / hrtimer_active
>
>[   35.846966] read to 0x0000000170c43f18 of 8 bytes by interrupt on cpu 2:
>[   35.846991]  hrtimer_active+0x90/0x110
>[   35.847016]  task_tick_fair+0x52/0x3f0
>[   35.847045]  scheduler_tick+0xe6/0x460
>[   35.847073]  update_process_times+0x104/0x120
>[   35.847099]  tick_sched_handle+0x8e/0xd8
>[   35.847129]  tick_nohz_highres_handler+0x82/0x108
>[   35.847160]  __hrtimer_run_queues+0x2d2/0x4d8
>[   35.847189]  hrtimer_interrupt+0x26a/0x528
>[   35.847220]  clock_comparator_work+0x74/0x90
>[   35.847252]  do_IRQ+0x8a/0xa8
>[   35.847285]  do_irq_async+0x7e/0x108
>[   35.847318]  do_ext_irq+0xd2/0x120
>[   35.847353]  ext_int_handler+0xc4/0xf0
>[   35.847389]  kcsan_setup_watchpoint+0x394/0x568
>[   35.847425]  kcsan_setup_watchpoint+0x21a/0x568
>[   35.847536]  sha256_transform_blocks+0xa1a/0xf08
>[   35.847570]  lib_sha256_base_do_update.constprop.0.isra.0+0x118/0x1b0
>[   35.847599]  sha256_update+0x44/0x58
>[   35.847624]  crypto_sha256_finup+0x4c/0xc8
>[   35.847653]  shash_default_digest+0x9c/0xd0
>[   35.847683]  crypto_shash_digest+0x8c/0xb0
>[   35.847708]  pkcs7_digest+0x180/0x3c8
>[   35.847732]  pkcs7_verify+0xac/0xba0
>[   35.847756]  verify_pkcs7_message_sig+0x84/0x1c0
>[   35.847787]  verify_pkcs7_signature+0x8a/0xb0
>[   35.847818]  mod_verify_sig+0xe4/0x128
>[   35.847847]  module_sig_check+0xe8/0x158
>[   35.847876]  load_module+0x4e/0x4180
>[   35.847905]  __do_sys_init_module+0x2c6/0x2f8
>[   35.847935]  __s390x_sys_init_module+0x68/0x88
>[   35.847967]  do_syscall+0x1c6/0x210
>[   35.847999]  __do_syscall+0xc8/0xf0
>[   35.848033]  system_call+0x70/0x98
>
>[   35.848091] write to 0x0000000170c43f18 of 8 bytes by interrupt on cpu 0:
>[   35.848138]  __hrtimer_run_queues+0x1b2/0x4d8
>[   35.848167]  hrtimer_interrupt+0x26a/0x528
>[   35.848187]  clock_comparator_work+0x74/0x90
>[   35.848209]  do_IRQ+0x8a/0xa8
>[   35.848231]  do_irq_async+0x7e/0x108
>[   35.848256]  do_ext_irq+0x96/0x120
>[   35.848281]  ext_int_handler+0xc4/0xf0
>[   35.848307]  psw_idle_exit+0x0/0xa
>[   35.848333]  arch_cpu_idle+0x36/0x48
>[   35.848361]  default_idle_call+0x3c/0x108
>[   35.848391]  do_idle+0xda/0x170
>[   35.848418]  cpu_startup_entry+0x40/0x48
>[   35.848446]  rest_init+0x132/0x148
>[   35.848476]  arch_call_rest_init+0x2c/0x30
>[   35.848507]  start_kernel+0x980/0xde8
>[   35.848534]  startup_continue+0x36/0x40
>
>[   35.848585] Reported by Kernel Concurrency Sanitizer on:
>[   35.848614] CPU: 0 PID: 0 Comm: swapper/0 Not tainted 6.7.4-1.g9e758e0-default #1 openSUSE Tumbleweed (unreleased) b54db25b5c91e1f741a77b8c006738e22884ded0
>[   35.848678] Hardware name: IBM 8561 LT1 400 (z/VM 7.3.0)
>[   35.848699] ==================================================================
>[   37.345110] Btrfs loaded, assert=on, zoned=yes, fsverity=yes
>[   38.397142] ==================================================================
>[   38.397185] BUG: KCSAN: data-race in inode_permission / kernfs_refresh_inode
>
>[   38.397224] write to 0x00000000806f9e00 of 2 bytes by task 401 on cpu 3:
>[   38.397247]  kernfs_refresh_inode+0x56/0x1b8
>[   38.397270]  kernfs_iop_permission+0x88/0xc8
>[   38.397300]  inode_permission+0x1a0/0x2d0
>[   38.397328]  link_path_walk.part.0.constprop.0+0x494/0x678
>[   38.397362]  path_lookupat+0x6c/0x360
>[   38.397394]  filename_lookup+0x156/0x2d8
>[   38.397423]  user_path_at_empty+0x66/0x90
>[   38.397456]  do_readlinkat+0x7c/0x1c0
>[   38.397491]  __s390x_sys_readlinkat+0x7c/0x98
>[   38.397527]  do_syscall+0x1c6/0x210
>[   38.397565]  __do_syscall+0xc8/0xf0
>[   38.397602]  system_call+0x70/0x98
>
>[   38.397667] read to 0x00000000806f9e00 of 2 bytes by task 397 on cpu 1:
>[   38.397724]  inode_permission+0xa0/0x2d0
>[   38.397743]  link_path_walk.part.0.constprop.0+0x494/0x678
>[   38.397765]  path_openat+0x148/0x1c88
>[   38.397785]  do_filp_open+0x13c/0x228
>[   38.397808]  do_sys_openat2+0xd4/0x110
>[   38.397831]  do_sys_open+0x7a/0xc0
>[   38.397851]  __s390x_sys_openat+0x80/0xa0
>[   38.397871]  do_syscall+0x1c6/0x210
>[   38.397890]  __do_syscall+0xc8/0xf0
>[   38.397910]  system_call+0x70/0x98
>
>[   38.397939] Reported by Kernel Concurrency Sanitizer on:
>[   38.397954] CPU: 1 PID: 397 Comm: udevadm Not tainted 6.7.4-1.g9e758e0-default #1 openSUSE Tumbleweed (unreleased) b54db25b5c91e1f741a77b8c006738e22884ded0
>[   38.397988] Hardware name: IBM 8561 LT1 400 (z/VM 7.3.0)
>[   38.398005] ==================================================================
>[   38.436096] ==================================================================
>[   38.436134] BUG: KCSAN: data-race in arch_vcpu_is_preempted+0x4a/0xe0
>
>[   38.436192] race at unknown origin, with read to 0x0000000000426288 of 8 bytes by task 406 on cpu 2:
>[   38.436218]  arch_vcpu_is_preempted+0x4a/0xe0
>[   38.436241]  rwsem_spin_on_owner+0x84/0x178
>[   38.436267]  rwsem_down_write_slowpath+0xfc/0xd60
>[   38.436295]  down_write+0xd8/0xf0
>[   38.436322]  filename_create+0x102/0x280
>[   38.436348]  do_symlinkat+0x64/0x1d0
>[   38.436376]  __s390x_sys_symlinkat+0x94/0xb0
>[   38.436409]  do_syscall+0x1c6/0x210
>[   38.436437]  __do_syscall+0xc8/0xf0
>[   38.436467]  system_call+0x70/0x98
>
>[   38.436518] value changed: 0x000000000000000c -> 0x0000000000000004
>
>[   38.436567] Reported by Kernel Concurrency Sanitizer on:
>[   38.436592] CPU: 2 PID: 406 Comm: (udev-worker) Not tainted 6.7.4-1.g9e758e0-default #1 openSUSE Tumbleweed (unreleased) b54db25b5c91e1f741a77b8c006738e22884ded0
>[   38.437181] Hardware name: IBM 8561 LT1 400 (z/VM 7.3.0)
>[   38.437200] ==================================================================
>[   38.471703] ==================================================================
>[   38.471738] BUG: KCSAN: data-race in kernfs_refresh_inode / link_path_walk.part.0.constprop.0
>
>[   38.471789] write to 0x00000000806f9e00 of 2 bytes by task 395 on cpu 1:
>[   38.471819]  kernfs_refresh_inode+0x56/0x1b8
>[   38.471848]  kernfs_iop_getattr+0xa4/0xe0
>[   38.471876]  vfs_getattr_nosec+0x15a/0x1d8
>[   38.471906]  vfs_fstat+0x74/0xc0
>[   38.471935]  __do_sys_newfstat+0x3a/0x80
>[   38.471968]  __s390x_sys_newfstat+0x54/0x70
>[   38.472002]  do_syscall+0x1c6/0x210
>[   38.472034]  __do_syscall+0xc8/0xf0
>[   38.472069]  system_call+0x70/0x98
>
>[   38.472127] read to 0x00000000806f9e00 of 2 bytes by task 415 on cpu 0:
>[   38.472182]  link_path_walk.part.0.constprop.0+0x60c/0x678
>[   38.472216]  path_lookupat+0x6c/0x360
>[   38.472235]  path_openat+0x1482/0x1c88
>[   38.472255]  do_filp_open+0x13c/0x228
>[   38.472276]  do_sys_openat2+0xd4/0x110
>[   38.472299]  do_sys_open+0x7a/0xc0
>[   38.472322]  __s390x_sys_openat+0x80/0xa0
>[   38.472346]  do_syscall+0x1c6/0x210
>[   38.472370]  __do_syscall+0xc8/0xf0
>[   38.472400]  system_call+0x70/0x98
>
>[   38.472448] Reported by Kernel Concurrency Sanitizer on:
>[   38.472471] CPU: 0 PID: 415 Comm: (udev-worker) Not tainted 6.7.4-1.g9e758e0-default #1 openSUSE Tumbleweed (unreleased) b54db25b5c91e1f741a77b8c006738e22884ded0
>[   38.472517] Hardware name: IBM 8561 LT1 400 (z/VM 7.3.0)
>[   38.472546] ==================================================================
>[   40.538202] qeth: loading core functions
>[   40.724868] dasd-eckd 0.0.0160: A channel path to the device has become operational
>[   40.725175] ==================================================================
>[   40.725335] BUG: KCSAN: data-race in d_alloc_parallel / d_alloc_parallel
>
>[   40.725383] read-write (marked) to 0x000000006f82ff10 of 8 bytes by task 401 on cpu 2:
>[   40.725415]  d_alloc_parallel+0x168/0x738
>[   40.725443]  __lookup_slow+0x9e/0x1c8
>[   40.725472]  walk_component+0x1ee/0x2c8
>[   40.725501]  link_path_walk.part.0.constprop.0+0x406/0x678
>[   40.725535]  path_openat+0x148/0x1c88
>[   40.725565]  do_filp_open+0x13c/0x228
>[   40.725598]  do_sys_openat2+0xd4/0x110
>[   40.725635]  do_sys_open+0x7a/0xc0
>[   40.725671]  __s390x_sys_openat+0x80/0xa0
>[   40.725715]  do_syscall+0x1c6/0x210
>[   40.725743]  __do_syscall+0xc8/0xf0
>[   40.725767]  system_call+0x70/0x98
>
>[   40.725806] read to 0x000000006f82ff10 of 8 bytes by task 404 on cpu 1:
>[   40.725830]  d_alloc_parallel+0x3e8/0x738
>[   40.725854]  __lookup_slow+0x9e/0x1c8
>[   40.725875]  walk_component+0x1ee/0x2c8
>[   40.725897]  link_path_walk.part.0.constprop.0+0x406/0x678
>[   40.725925]  path_openat+0x148/0x1c88
>[   40.725950]  do_filp_open+0x13c/0x228
>[   40.725974]  do_sys_openat2+0xd4/0x110
>[   40.726002]  do_sys_open+0x7a/0xc0
>[   40.726030]  __s390x_sys_openat+0x80/0xa0
>[   40.726061]  do_syscall+0x1c6/0x210
>[   40.726091]  __do_syscall+0xc8/0xf0
>[   40.726121]  system_call+0x70/0x98
>
>[   40.726175] Reported by Kernel Concurrency Sanitizer on:
>[   40.726204] CPU: 1 PID: 404 Comm: (udev-worker) Not tainted 6.7.4-1.g9e758e0-default #1 openSUSE Tumbleweed (unreleased) b54db25b5c91e1f741a77b8c006738e22884ded0
>[   40.726260] Hardware name: IBM 8561 LT1 400 (z/VM 7.3.0)
>[   40.726279] ==================================================================
>[   40.728870] dasd-eckd 0.0.0160: A channel path to the device has become operational
>[   40.731979] dasd-eckd 0.0.0160: New DASD 3390/0C (CU 3990/01) with 30000 cylinders, 15 heads, 224 sectors
>[   40.737443] ==================================================================
>[   40.737480] BUG: KCSAN: data-race in set_nlink / set_nlink
>
>[   40.737539] read to 0x00000000806f9e48 of 4 bytes by task 203 on cpu 2:
>[   40.737571]  set_nlink+0x3c/0x120
>[   40.737603]  kernfs_refresh_inode+0x1a6/0x1b8
>[   40.737641]  kernfs_iop_permission+0x88/0xc8
>[   40.737676]  inode_permission+0x1a0/0x2d0
>[   40.737711]  link_path_walk.part.0.constprop.0+0x494/0x678
>[   40.737746]  path_lookupat+0x6c/0x360
>[   40.737779]  filename_lookup+0x156/0x2d8
>[   40.737815]  user_path_at_empty+0x66/0x90
>[   40.737857]  do_faccessat+0x19c/0x460
>[   40.737881]  __s390x_sys_access+0x5c/0x78
>[   40.737902]  do_syscall+0x1c6/0x210
>[   40.737923]  __do_syscall+0xc8/0xf0
>[   40.737945]  system_call+0x70/0x98
>
>[   40.737976] write to 0x00000000806f9e48 of 4 bytes by task 426 on cpu 3:
>[   40.737999]  set_nlink+0x6e/0x120
>[   40.738017]  kernfs_refresh_inode+0x1a6/0x1b8
>[   40.738038]  kernfs_iop_permission+0x88/0xc8
>[   40.738058]  inode_permission+0x1a0/0x2d0
>[   40.738077]  link_path_walk.part.0.constprop.0+0x494/0x678
>[   40.738099]  path_lookupat+0x6c/0x360
>[   40.738119]  filename_lookup+0x156/0x2d8
>[   40.738140]  vfs_statx+0x96/0x228
>[   40.738158]  vfs_fstatat+0x98/0x120
>[   40.738177]  __do_sys_newfstatat+0x4a/0x78
>[   40.738200]  __s390x_sys_newfstatat+0x7c/0x98
>[   40.738221]  do_syscall+0x1c6/0x210
>[   40.738240]  __do_syscall+0xc8/0xf0
>[   40.738262]  system_call+0x70/0x98
>
>[   40.738290] Reported by Kernel Concurrency Sanitizer on:
>[   40.738304] CPU: 3 PID: 426 Comm: (udev-worker) Not tainted 6.7.4-1.g9e758e0-default #1 openSUSE Tumbleweed (unreleased) b54db25b5c91e1f741a77b8c006738e22884ded0
>[   40.738339] Hardware name: IBM 8561 LT1 400 (z/VM 7.3.0)
>[   40.738354] ==================================================================
>[   40.771998] dasd-eckd 0.0.0160: DASD with 4 KB/block, 21600000 KB total size, 48 KB/track, compatible disk layout
>[   40.807295]  dasda:VOL1/  0X0160: dasda1 dasda2 dasda3
>[   40.843602] dasd-eckd 0.0.0170: A channel path to the device has become operational
>[   40.845516] dasd-eckd 0.0.0170: A channel path to the device has become operational
>[   40.878585] dasd-eckd 0.0.0170: New DASD 3390/0C (CU 3990/01) with 60102 cylinders, 15 heads, 224 sectors
>[   40.915676] dasd-eckd 0.0.0170: DASD with 4 KB/block, 43273440 KB total size, 48 KB/track, compatible disk layout
>[   40.933547]  dasdb:VOL1/  0X0170: dasdb1
>[   40.946351] dasd-eckd 0.0.0180: A channel path to the device has become operational
>[   40.949693] dasd-eckd 0.0.0180: A channel path to the device has become operational
>[   40.985218] dasd-eckd 0.0.0180: New DASD 3390/0C (CU 3990/01) with 60102 cylinders, 15 heads, 224 sectors
>[   41.046744] dasd-eckd 0.0.0180: DASD with 4 KB/block, 43273440 KB total size, 48 KB/track, compatible disk layout
>[   41.051962] ==================================================================
>[   41.051995] BUG: KCSAN: data-race in capable / vtime_account_kernel
>
>[   41.052048] read to 0x000000008717c42c of 4 bytes by interrupt on cpu 1:
>[   41.052083]  vtime_account_kernel+0x70/0x178
>[   41.052112]  do_io_irq+0x46/0x120
>[   41.052144]  io_int_handler+0xc4/0xf0
>[   41.052179]  delay_loop+0x6a/0xd0
>[   41.052210]  delay_loop+0xa0/0xd0
>[   41.052242]  __udelay+0x36/0x48
>[   41.052272]  kcsan_setup_watchpoint+0x21a/0x568
>[   41.052303]  delay_loop+0x90/0xd0
>[   41.052334]  __udelay+0x36/0x48
>[   41.052363]  kcsan_setup_watchpoint+0x21a/0x568
>[   41.052399]  capable+0xb6/0xf8
>[   41.052441]  vt_ioctl+0x84/0x18f0
>[   41.052482]  tty_ioctl+0x670/0xd28
>[   41.052522]  __s390x_sys_ioctl+0x108/0x150
>[   41.052543]  do_syscall+0x1c6/0x210
>[   41.052563]  __do_syscall+0xc8/0xf0
>[   41.052584]  system_call+0x70/0x98
>
>[   41.052619] write to 0x000000008717c42c of 4 bytes by task 468 on cpu 1:
>[   41.052642]  capable+0xb6/0xf8
>[   41.052664]  vt_ioctl+0x84/0x18f0
>[   41.052689]  tty_ioctl+0x670/0xd28
>[   41.052712]  __s390x_sys_ioctl+0x108/0x150
>[   41.052735]  do_syscall+0x1c6/0x210
>[   41.052757]  __do_syscall+0xc8/0xf0
>[   41.052778]  system_call+0x70/0x98
>
>[   41.052806] Reported by Kernel Concurrency Sanitizer on:
>[   41.052823] CPU: 1 PID: 468 Comm: loadkeys Not tainted 6.7.4-1.g9e758e0-default #1 openSUSE Tumbleweed (unreleased) b54db25b5c91e1f741a77b8c006738e22884ded0
>[   41.052857] Hardware name: IBM 8561 LT1 400 (z/VM 7.3.0)
>[   41.052872] ==================================================================
>[   41.066737]  dasdc:VOL1/  0X0180: dasdc1
>[   41.213920] ==================================================================
>[   41.213963] BUG: KCSAN: data-race in atime_needs_update / inode_update_timestamps
>
>[   41.214007] read to 0x00000000806e1960 of 8 bytes by task 493 on cpu 2:
>[   41.214031]  atime_needs_update+0x28c/0x298
>[   41.214056]  step_into+0x8c8/0xd78
>[   41.214079]  walk_component+0x7e/0x2c8
>[   41.214104]  link_path_walk.part.0.constprop.0+0x406/0x678
>[   41.214133]  path_openat+0x148/0x1c88
>[   41.214159]  do_filp_open+0x13c/0x228
>[   41.214185]  do_sys_openat2+0xd4/0x110
>[   41.214214]  do_sys_open+0x7a/0xc0
>[   41.214245]  __s390x_sys_openat+0x80/0xa0
>[   41.214276]  do_syscall+0x1c6/0x210
>[   41.214307]  __do_syscall+0xc8/0xf0
>[   41.214340]  system_call+0x70/0x98
>
>[   41.214398] write to 0x00000000806e1960 of 8 bytes by task 495 on cpu 0:
>[   41.214431]  inode_update_timestamps+0x1ba/0x268
>[   41.216690]  generic_update_time+0x3c/0xa8
>[   41.216714]  touch_atime+0x19c/0x1e0
>[   41.216734]  step_into+0x8e8/0xd78
>[   41.216753]  walk_component+0x7e/0x2c8
>[   41.216772]  link_path_walk.part.0.constprop.0+0x406/0x678
>[   41.216794]  path_openat+0x148/0x1c88
>[   41.216813]  do_filp_open+0x13c/0x228
>[   41.216872]  do_sys_openat2+0xd4/0x110
>[   41.216898]  do_sys_open+0x7a/0xc0
>[   41.216923]  __s390x_sys_openat+0x80/0xa0
>[   41.216949]  do_syscall+0x1c6/0x210
>[   41.216975]  __do_syscall+0xc8/0xf0
>[   41.217003]  system_call+0x70/0x98
>
>[   41.217051] value changed: 0x00000000048d2a60 -> 0x0000000005be575e
>
>[   41.217104] Reported by Kernel Concurrency Sanitizer on:
>[   41.217135] CPU: 0 PID: 495 Comm: dracut-getarg Not tainted 6.7.4-1.g9e758e0-default #1 openSUSE Tumbleweed (unreleased) b54db25b5c91e1f741a77b8c006738e22884ded0
>[   41.217185] Hardware name: IBM 8561 LT1 400 (z/VM 7.3.0)
>[   41.217453] ==================================================================
>[   41.493477] ==================================================================
>[   41.493520] BUG: KCSAN: data-race in rcu_all_qs / rcu_report_qs_rdp
>
>[   41.493563] write (marked) to 0x0000000170c54c15 of 1 bytes by interrupt on cpu 0:
>[   41.493587]  rcu_report_qs_rdp+0x144/0x228
>[   41.493611]  rcu_core+0x860/0xe00
>[   41.493635]  rcu_core_si+0x30/0x48
>[   41.493659]  __do_softirq+0x14c/0x410
>[   41.493687]  irq_exit_rcu+0xae/0xc8
>[   41.493710]  do_ext_irq+0xd8/0x120
>[   41.493736]  ext_int_handler+0xc4/0xf0
>[   41.493763]  __tsan_read_range+0x0/0x1a8
>[   41.493790]  delay_loop+0x7c/0xd0
>[   41.493818]  __udelay+0x36/0x48
>[   41.493846]  kcsan_setup_watchpoint+0x21a/0x568
>[   41.493876]  rcu_all_qs+0x4e/0x1b0
>[   41.493906]  __cond_resched+0x2c/0x78
>[   41.493936]  __kmem_cache_alloc_node+0x4be/0x530
>[   41.493972]  __kmalloc_node_track_caller+0x60/0x1e8
>[   41.494046]  kstrdup+0x6a/0xa0
>[   41.494073]  mod_sysfs_setup+0x6de/0xd00
>[   41.494094]  load_module+0x3d5e/0x4180
>[   41.494113]  __do_sys_init_module+0x2c6/0x2f8
>[   41.494134]  __s390x_sys_init_module+0x68/0x88
>[   41.494156]  do_syscall+0x1c6/0x210
>[   41.494178]  __do_syscall+0xc8/0xf0
>[   41.494201]  system_call+0x70/0x98
>
>[   41.494243] read to 0x0000000170c54c15 of 1 bytes by task 401 on cpu 0:
>[   41.494270]  rcu_all_qs+0x4e/0x1b0
>[   41.494298]  __cond_resched+0x2c/0x78
>[   41.494328]  __kmem_cache_alloc_node+0x4be/0x530
>[   41.494361]  __kmalloc_node_track_caller+0x60/0x1e8
>[   41.494395]  kstrdup+0x6a/0xa0
>[   41.494424]  mod_sysfs_setup+0x6de/0xd00
>[   41.494455]  load_module+0x3d5e/0x4180
>[   41.494486]  __do_sys_init_module+0x2c6/0x2f8
>[   41.494519]  __s390x_sys_init_module+0x68/0x88
>[   41.494555]  do_syscall+0x1c6/0x210
>[   41.494600]  __do_syscall+0xc8/0xf0
>[   41.494623]  system_call+0x70/0x98
>
>[   41.494660] Reported by Kernel Concurrency Sanitizer on:
>[   41.494678] CPU: 0 PID: 401 Comm: (udev-worker) Not tainted 6.7.4-1.g9e758e0-default #1 openSUSE Tumbleweed (unreleased) b54db25b5c91e1f741a77b8c006738e22884ded0
>[   41.494716] Hardware name: IBM 8561 LT1 400 (z/VM 7.3.0)
>[   41.494736] ==================================================================
>[   42.300974] EXT4-fs (dasda1): mounting ext2 file system using the ext4 subsystem
>[   42.307776] EXT4-fs (dasda1): mounted filesystem af3b3bfb-f2f7-4af7-8cd4-c58be91905b5 ro without journal. Quota mode: none.
>[   42.460033] EXT4-fs (dasda1): unmounting filesystem af3b3bfb-f2f7-4af7-8cd4-c58be91905b5.
>[   42.777302] BTRFS: device fsid bb87da4e-9ea8-4d87-9c51-d66216e24b85 devid 1 transid 42208 /dev/dasda2 scanned by mount (562)
>[   42.780465] BTRFS info (device dasda2): first mount of filesystem bb87da4e-9ea8-4d87-9c51-d66216e24b85
>[   42.781017] BTRFS info (device dasda2): using crc32c (crc32c-vx) checksum algorithm
>[   42.781746] BTRFS info (device dasda2): using free space tree
>[   42.846185] BTRFS info (device dasda2): enabling ssd optimizations
>[   43.013756] ==================================================================
>[   43.013797] BUG: KCSAN: data-race in do_epoll_ctl / ep_poll_callback
>
>[   43.013837] write to 0x00000000868302e8 of 4 bytes by task 1 on cpu 1:
>[   43.013860]  do_epoll_ctl+0xb7a/0x1510
>[   43.013883]  __s390x_sys_epoll_ctl+0xb8/0x110
>[   43.013908]  do_syscall+0x1c6/0x210
>[   43.013932]  __do_syscall+0xc8/0xf0
>[   43.013957]  system_call+0x70/0x98
>
>[   43.014000] read to 0x00000000868302e8 of 4 bytes by task 581 on cpu 0:
>[   43.014026]  ep_poll_callback+0x1ba/0x528
>[   43.014054]  __wake_up_common+0xa0/0xc8
>[   43.014084]  __wake_up_common_lock+0x5e/0xa0
>[   43.014111]  __wake_up+0x2a/0x38
>[   43.014136]  sock_def_wakeup+0x7c/0x90
>[   43.014165]  unix_release_sock+0x6ee/0x858
>[   43.014194]  unix_release+0x7e/0xa8
>[   43.014223]  __sock_release+0x82/0x160
>[   43.014303]  sock_close+0x3a/0x50
>[   43.014327]  __fput+0x12a/0x4f0
>[   43.014344]  __fput_sync+0x78/0x90
>[   43.014364]  __s390x_sys_close+0x82/0xc8
>[   43.014387]  do_syscall+0x1c6/0x210
>[   43.014409]  __do_syscall+0xc8/0xf0
>[   43.014432]  system_call+0x70/0x98
>
>[   43.014470] value changed: 0x00000019 -> 0x00000018
>
>[   43.014504] Reported by Kernel Concurrency Sanitizer on:
>[   43.014525] CPU: 0 PID: 581 Comm: systemctl Not tainted 6.7.4-1.g9e758e0-default #1 openSUSE Tumbleweed (unreleased) b54db25b5c91e1f741a77b8c006738e22884ded0
>[   43.014565] Hardware name: IBM 8561 LT1 400 (z/VM 7.3.0)
>[   43.014589] ==================================================================
>[   43.536755] ==================================================================
>[   43.536794] BUG: KCSAN: data-race in arch_vcpu_is_preempted+0x4a/0xe0
>
>[   43.536852] race at unknown origin, with read to 0x0000000000422288 of 8 bytes by task 603 on cpu 0:
>[   43.536889]  arch_vcpu_is_preempted+0x4a/0xe0
>[   43.536923]  mutex_spin_on_owner+0xb4/0x170
>[   43.536961]  __mutex_lock.constprop.0+0xb60/0xfc8
>[   43.536996]  __mutex_lock_slowpath+0x38/0x50
>[   43.537029]  mutex_lock+0xb4/0xc8
>[   43.537265]  cgroup_kn_lock_live+0x9a/0x1d0
>[   43.537294]  __cgroup_procs_write+0x5c/0x270
>[   43.537316]  cgroup_procs_write+0x44/0x68
>[   43.537338]  cgroup_file_write+0x132/0x2a8
>[   43.537363]  kernfs_fop_write_iter+0x200/0x2d0
>[   43.537389]  vfs_write+0x33c/0x588
>[   43.537411]  ksys_write+0xa2/0x150
>[   43.537434]  __s390x_sys_write+0x68/0x88
>[   43.537458]  do_syscall+0x1c6/0x210
>[   43.537484]  __do_syscall+0xc8/0xf0
>[   43.537511]  system_call+0x70/0x98
>
>[   43.537558] value changed: 0x0000000000000008 -> 0x000000000000000c
>
>[   43.537623] Reported by Kernel Concurrency Sanitizer on:
>[   43.537652] CPU: 0 PID: 603 Comm: (udevadm) Not tainted 6.7.4-1.g9e758e0-default #1 openSUSE Tumbleweed (unreleased) b54db25b5c91e1f741a77b8c006738e22884ded0
>[   43.537703] Hardware name: IBM 8561 LT1 400 (z/VM 7.3.0)
>[   43.537735] ==================================================================
>[   43.871874] systemd-journald[203]: Received SIGTERM from PID 1 (systemd).
>[   44.596499] systemd[1]: systemd 254.5+suse.21.g071ac409a0 running in system mode (+PAM +AUDIT +SELINUX +APPARMOR +IMA -SMACK +SECCOMP +GCRYPT +GNUTLS +OPENSSL +ACL +BLKID +CURL +ELFUTILS +FIDO2 +IDN2 -IDN +IPTC +KMOD +LIBCRYPTSETUP +LIBFDISK +PCRE2 +PWQUALITY +P11KIT +QRENCODE +TPM2 +BZIP2 +LZ4 +XZ +ZLIB +ZSTD +BPF_FRAMEWORK -XKBCOMMON -UTMP +SYSVINIT default-hierarchy=unified)
>[   44.597379] systemd[1]: Detected virtualization zvm.
>[   44.597474] systemd[1]: Detected architecture s390x.
>[   46.796789] ==================================================================
>[   46.796833] BUG: KCSAN: data-race in rcu_all_qs / rcu_report_qs_rdp
>
>[   46.796875] write (marked) to 0x0000000170c92c15 of 1 bytes by interrupt on cpu 2:
>[   46.796898]  rcu_report_qs_rdp+0x144/0x228
>[   46.796922]  rcu_core+0x860/0xe00
>[   46.796944]  rcu_core_si+0x30/0x48
>[   46.796968]  __do_softirq+0x14c/0x410
>[   46.796995]  irq_exit_rcu+0xae/0xc8
>[   46.797019]  do_ext_irq+0xd8/0x120
>[   46.797045]  ext_int_handler+0xc4/0xf0
>[   46.797072]  __tsan_read8+0xd8/0x1a0
>[   46.797098]  delay_loop+0xa0/0xd0
>[   46.797125]  __udelay+0x36/0x48
>[   46.797152]  kcsan_setup_watchpoint+0x21a/0x568
>[   46.797182]  rcu_all_qs+0x4e/0x1b0
>[   46.797212]  __cond_resched+0x2c/0x78
>[   46.797242]  clear_huge_page+0xca/0x238
>[   46.797275]  do_huge_pmd_anonymous_page+0x41c/0xb60
>[   46.797324]  __handle_mm_fault+0x178a/0x23b0
>[   46.797342]  handle_mm_fault+0x278/0x458
>[   46.797359]  do_exception+0x31a/0x930
>[   46.797377]  do_dat_exception+0x38/0x50
>[   46.797394]  __do_pgm_check+0xf4/0x188
>[   46.797412]  pgm_check_handler+0x116/0x168
>
>[   46.797440] read to 0x0000000170c92c15 of 1 bytes by task 1 on cpu 2:
>[   46.797457]  rcu_all_qs+0x4e/0x1b0
>[   46.797475]  __cond_resched+0x2c/0x78
>[   46.797490]  clear_huge_page+0xca/0x238
>[   46.797507]  do_huge_pmd_anonymous_page+0x41c/0xb60
>[   46.797524]  __handle_mm_fault+0x178a/0x23b0
>[   46.797541]  handle_mm_fault+0x278/0x458
>[   46.797582]  do_exception+0x31a/0x930
>[   46.797598]  do_dat_exception+0x38/0x50
>[   46.797653]  __do_pgm_check+0xf4/0x188
>[   46.797682]  pgm_check_handler+0x116/0x168
>
>[   46.797735] Reported by Kernel Concurrency Sanitizer on:
>[   46.797768] CPU: 2 PID: 1 Comm: systemd Not tainted 6.7.4-1.g9e758e0-default #1 openSUSE Tumbleweed (unreleased) b54db25b5c91e1f741a77b8c006738e22884ded0
>[   46.797797] Hardware name: IBM 8561 LT1 400 (z/VM 7.3.0)
>[   46.797810] ==================================================================
>[   46.910374] systemd[1]: bpf-lsm: LSM BPF program attached
>[   47.537923] systemd[1]: /usr/lib/systemd/system/plymouth-start.service:15: Unit uses KillMode=none. This is unsafe, as it disables systemd's process lifecycle management for the service. Please update the service to use a safer KillMode=, such as 'mixed' or 'control-group'. Support for KillMode=none is deprecated and will eventually be removed.
>[   47.930060] systemd[1]: initrd-switch-root.service: Deactivated successfully.
>[   47.950814] systemd[1]: Stopped Switch Root.
>[   47.959853] systemd[1]: systemd-journald.service: Scheduled restart job, restart counter is at 1.
>[   47.963190] systemd[1]: Created slice Slice /system/getty.
>[   47.966303] systemd[1]: Created slice Slice /system/modprobe.
>[   47.970725] systemd[1]: Created slice Slice /system/serial-getty.
>[   47.974697] systemd[1]: Created slice Slice /system/systemd-fsck.
>[   47.978326] systemd[1]: Created slice User and Session Slice.
>[   47.979527] systemd[1]: Set up automount Arbitrary Executable File Formats File System Automount Point.
>[   47.982523] systemd[1]: Stopped target Switch Root.
>[   47.983174] systemd[1]: Stopped target Initrd File Systems.
>[   47.983804] systemd[1]: Stopped target Initrd Root File System.
>[   47.984895] systemd[1]: Reached target Local Integrity Protected Volumes.
>[   47.986116] systemd[1]: Reached target Slice Units.
>[   47.987315] systemd[1]: Reached target System Time Set.
>[   47.988039] systemd[1]: Reached target Local Verity Protected Volumes.
>[   47.990475] systemd[1]: Listening on Device-mapper event daemon FIFOs.
>[   47.998484] systemd[1]: Listening on Syslog Socket.
>[   48.005339] systemd[1]: Listening on Process Core Dump Socket.
>[   48.013495] systemd[1]: Listening on udev Control Socket.
>[   48.014925] systemd[1]: Listening on udev Kernel Socket.
>[   48.057502] systemd[1]: Mounting Huge Pages File System...
>[   48.064935] systemd[1]: Mounting POSIX Message Queue File System...
>[   48.075630] systemd[1]: Mounting Kernel Debug File System...
>[   48.085988] systemd[1]: Mounting Kernel Trace File System...
>[   48.097017] systemd[1]: Starting Create List of Static Device Nodes...
>[   48.107649] systemd[1]: Starting Load Kernel Module configfs...
>[   48.118910] systemd[1]: Starting Load Kernel Module drm...
>[   48.128283] systemd[1]: Starting Load Kernel Module efi_pstore...
>[   48.138534] systemd[1]: Starting Load Kernel Module fuse...
>[   48.140400] systemd[1]: plymouth-start.service: Deactivated successfully.
>[   48.140869] systemd[1]: plymouth-start.service: Unit process 425 (plymouthd) remains running after unit stopped.
>[   48.249244] fuse: init (API version 7.39)
>[   48.250837] systemd[1]: Stopped Show Plymouth Boot Screen.
>[   48.252998] systemd[1]: Dispatch Password Requests to Console Directory Watch was skipped because of an unmet condition check (ConditionPathExists=!/run/plymouth/pid).
>[   48.253234] systemd[1]: Reached target Local Encrypted Volumes.
>[   48.254336] systemd[1]: plymouth-switch-root.service: Deactivated successfully.
>[   48.433640] systemd[1]: Stopped Plymouth switch root service.
>[   48.434621] systemd[1]: systemd-fsck-root.service: Deactivated successfully.
>[   48.487100] systemd[1]: Stopped File System Check on Root Device.
>[   48.531723] systemd[1]: Starting Journal Service...
>[   48.543171] systemd[1]: Starting Load Kernel Modules...
>[   48.551895] systemd[1]: Starting Remount Root and Kernel File Systems...
>[   48.563975] systemd[1]: Starting Coldplug All udev Devices...
>[   48.592056] systemd[1]: Mounted Huge Pages File System.
>[   48.601272] systemd[1]: Mounted POSIX Message Queue File System.
>[   48.609113] systemd[1]: Mounted Kernel Debug File System.
>[   48.613239] systemd[1]: Mounted Kernel Trace File System.
>[   48.666630] systemd-journald[633]: Collecting audit messages is disabled.
>[   48.777562] systemd[1]: Finished Create List of Static Device Nodes.
>[   48.785168] systemd[1]: Started Journal Service.
>[   50.003399] ==================================================================
>[   50.003497] BUG: KCSAN: data-race in rcu_all_qs / rcu_report_qs_rdp
>
>[   50.003542] write (marked) to 0x0000000170c54c15 of 1 bytes by interrupt on cpu 0:
>[   50.003567]  rcu_report_qs_rdp+0x144/0x228
>[   50.003592]  rcu_core+0x860/0xe00
>[   50.003616]  rcu_core_si+0x30/0x48
>[   50.003640]  __do_softirq+0x14c/0x410
>[   50.003669]  irq_exit_rcu+0xae/0xc8
>[   50.003692]  do_ext_irq+0xd8/0x120
>[   50.003719]  ext_int_handler+0xc4/0xf0
>[   50.003747]  delay_loop+0x6a/0xd0
>[   50.003775]  delay_loop+0xa0/0xd0
>[   50.003804]  __udelay+0x36/0x48
>[   50.003834]  kcsan_setup_watchpoint+0x21a/0x568
>[   50.003865]  rcu_all_qs+0x4e/0x1b0
>[   50.003896]  __cond_resched+0x2c/0x78
>[   50.003928]  down_write+0x30/0xf0
>[   50.003960]  unlink_anon_vmas+0x14e/0x3b8
>[   50.003996]  free_pgtables+0x272/0x308
>[   50.004045]  exit_mmap+0x1fa/0x580
>[   50.004063]  __mmput+0x9e/0x228
>[   50.004081]  mmput+0x7e/0x90
>[   50.004098]  do_exit+0x596/0x1390
>[   50.004119]  do_group_exit+0x7a/0x140
>[   50.004141]  __s390x_sys_exit_group+0x46/0x48
>[   50.004163]  do_syscall+0x1c6/0x210
>[   50.004185]  __do_syscall+0xc8/0xf0
>[   50.004207]  system_call+0x70/0x98
>
>[   50.004251] read to 0x0000000170c54c15 of 1 bytes by task 659 on cpu 0:
>[   50.004276]  rcu_all_qs+0x4e/0x1b0
>[   50.004303]  __cond_resched+0x2c/0x78
>[   50.004329]  down_write+0x30/0xf0
>[   50.004354]  unlink_anon_vmas+0x14e/0x3b8
>[   50.004382]  free_pgtables+0x272/0x308
>[   50.004410]  exit_mmap+0x1fa/0x580
>[   50.004436]  __mmput+0x9e/0x228
>[   50.004463]  mmput+0x7e/0x90
>[   50.004491]  do_exit+0x596/0x1390
>[   50.004522]  do_group_exit+0x7a/0x140
>[   50.004553]  __s390x_sys_exit_group+0x46/0x48
>[   50.004594]  do_syscall+0x1c6/0x210
>[   50.004612]  __do_syscall+0xc8/0xf0
>[   50.004631]  system_call+0x70/0x98
>
>[   50.004661] Reported by Kernel Concurrency Sanitizer on:
>[   50.004679] CPU: 0 PID: 659 Comm: (sd-mkdcreds) Not tainted 6.7.4-1.g9e758e0-default #1 openSUSE Tumbleweed (unreleased) b54db25b5c91e1f741a77b8c006738e22884ded0
>[   50.004716] Hardware name: IBM 8561 LT1 400 (z/VM 7.3.0)
>[   50.004736] ==================================================================
>[   50.787943] ==================================================================
>[   50.787983] BUG: KCSAN: data-race in __fput / kernfs_refresh_inode
>
>[   50.788028] write to 0x00000000806fb980 of 2 bytes by task 670 on cpu 1:
>[   50.788055]  kernfs_refresh_inode+0x56/0x1b8
>[   50.788084]  kernfs_iop_getattr+0xa4/0xe0
>[   50.788111]  vfs_getattr_nosec+0x15a/0x1d8
>[   50.788141]  vfs_fstat+0x74/0xc0
>[   50.788168]  __do_sys_newfstat+0x3a/0x80
>[   50.788196]  __s390x_sys_newfstat+0x54/0x70
>[   50.788225]  do_syscall+0x1c6/0x210
>[   50.788253]  __do_syscall+0xc8/0xf0
>[   50.788286]  system_call+0x70/0x98
>
>[   50.788339] read to 0x00000000806fb980 of 2 bytes by task 668 on cpu 0:
>[   50.788371]  __fput+0x138/0x4f0
>[   50.788403]  __fput_sync+0x78/0x90
>[   50.788437]  __s390x_sys_close+0x82/0xc8
>[   50.791398]  do_syscall+0x1c6/0x210
>[   50.791426]  __do_syscall+0xc8/0xf0
>[   50.791448]  system_call+0x70/0x98
>
>[   50.791481] Reported by Kernel Concurrency Sanitizer on:
>[   50.791500] CPU: 0 PID: 668 Comm: (udev-worker) Not tainted 6.7.4-1.g9e758e0-default #1 openSUSE Tumbleweed (unreleased) b54db25b5c91e1f741a77b8c006738e22884ded0
>[   50.791542] Hardware name: IBM 8561 LT1 400 (z/VM 7.3.0)
>[   50.791565] ==================================================================
>[   50.836001] ==================================================================
>[   50.836037] BUG: KCSAN: data-race in arch_vcpu_is_preempted+0x4a/0xe0
>
>[   50.836093] race at unknown origin, with read to 0x0000000000426288 of 8 bytes by task 675 on cpu 1:
>[   50.836128]  arch_vcpu_is_preempted+0x4a/0xe0
>[   50.836161]  rwsem_spin_on_owner+0x84/0x178
>[   50.836200]  rwsem_down_write_slowpath+0xfc/0xd60
>[   50.836251]  down_write+0xd8/0xf0
>[   50.836273]  do_renameat2+0x71c/0x818
>[   50.836295]  __s390x_sys_rename+0x8c/0xa8
>[   50.836313]  do_syscall+0x1c6/0x210
>[   50.836333]  __do_syscall+0xc8/0xf0
>[   50.836352]  system_call+0x70/0x98
>
>[   50.836379] value changed: 0x0000000000000004 -> 0x000000000000000c
>
>[   50.836404] Reported by Kernel Concurrency Sanitizer on:
>[   50.836419] CPU: 1 PID: 675 Comm: (udev-worker) Not tainted 6.7.4-1.g9e758e0-default #1 openSUSE Tumbleweed (unreleased) b54db25b5c91e1f741a77b8c006738e22884ded0
>[   50.836454] Hardware name: IBM 8561 LT1 400 (z/VM 7.3.0)
>[   50.836468] ==================================================================
>[   50.938442] VFIO - User Level meta-driver version: 0.3
>[   50.948285] ==================================================================
>[   50.948320] BUG: KCSAN: data-race in kernfs_refresh_inode / link_path_walk.part.0.constprop.0
>
>[   50.948368] write to 0x0000000080703700 of 2 bytes by task 684 on cpu 2:
>[   50.948393]  kernfs_refresh_inode+0x56/0x1b8
>[   50.948418]  kernfs_iop_getattr+0xa4/0xe0
>[   50.948444]  vfs_getattr_nosec+0x15a/0x1d8
>[   50.948472]  vfs_fstat+0x74/0xc0
>[   50.948498]  __do_sys_newfstat+0x3a/0x80
>[   50.948527]  __s390x_sys_newfstat+0x54/0x70
>[   50.948557]  do_syscall+0x1c6/0x210
>[   50.948588]  __do_syscall+0xc8/0xf0
>[   50.948622]  system_call+0x70/0x98
>
>[   50.948677] read to 0x0000000080703700 of 2 bytes by task 683 on cpu 0:
>[   50.948709]  link_path_walk.part.0.constprop.0+0x60c/0x678
>[   50.948742]  path_lookupat+0x6c/0x360
>[   50.949648]  filename_lookup+0x156/0x2d8
>[   50.949674]  user_path_at_empty+0x66/0x90
>[   50.949695]  do_faccessat+0x19c/0x460
>[   50.949718]  __s390x_sys_faccessat2+0x7c/0x98
>[   50.949743]  do_syscall+0x1c6/0x210
>[   50.949771]  __do_syscall+0xc8/0xf0
>[   50.949798]  system_call+0x70/0x98
>
>[   50.949838] Reported by Kernel Concurrency Sanitizer on:
>[   50.949860] CPU: 0 PID: 683 Comm: (udev-worker) Not tainted 6.7.4-1.g9e758e0-default #1 openSUSE Tumbleweed (unreleased) b54db25b5c91e1f741a77b8c006738e22884ded0
>[   50.949908] Hardware name: IBM 8561 LT1 400 (z/VM 7.3.0)
>[   50.949938] ==================================================================
>[   51.135788] ==================================================================
>[   51.135833] BUG: KCSAN: data-race in kernfs_refresh_inode / kernfs_refresh_inode
>
>[   51.135876] write to 0x00000000850aea80 of 2 bytes by task 690 on cpu 3:
>[   51.135901]  kernfs_refresh_inode+0x56/0x1b8
>[   51.135925]  kernfs_iop_permission+0x88/0xc8
>[   51.135950]  inode_permission+0x1a0/0x2d0
>[   51.135976]  link_path_walk.part.0.constprop.0+0x494/0x678
>[   51.136006]  path_lookupat+0x6c/0x360
>[   51.136033]  filename_lookup+0x156/0x2d8
>[   51.136061]  user_path_at_empty+0x66/0x90
>[   51.136089]  do_readlinkat+0x7c/0x1c0
>[   51.136119]  __s390x_sys_readlinkat+0x7c/0x98
>[   51.136151]  do_syscall+0x1c6/0x210
>[   51.136182]  __do_syscall+0xc8/0xf0
>[   51.136216]  system_call+0x70/0x98
>
>[   51.136271] write to 0x00000000850aea80 of 2 bytes by task 684 on cpu 0:
>[   51.137184]  kernfs_refresh_inode+0x56/0x1b8
>[   51.137210]  kernfs_iop_getattr+0xa4/0xe0
>[   51.137234]  vfs_getattr_nosec+0x15a/0x1d8
>[   51.137256]  vfs_fstat+0x74/0xc0
>[   51.137276]  __do_sys_newfstat+0x3a/0x80
>[   51.137298]  __s390x_sys_newfstat+0x54/0x70
>[   51.137322]  do_syscall+0x1c6/0x210
>[   51.137344]  __do_syscall+0xc8/0xf0
>[   51.137368]  system_call+0x70/0x98
>
>[   51.137412] Reported by Kernel Concurrency Sanitizer on:
>[   51.137438] CPU: 0 PID: 684 Comm: (udev-worker) Not tainted 6.7.4-1.g9e758e0-default #1 openSUSE Tumbleweed (unreleased) b54db25b5c91e1f741a77b8c006738e22884ded0
>[   51.137484] Hardware name: IBM 8561 LT1 400 (z/VM 7.3.0)
>[   51.137511] ==================================================================
>[   51.162894] ==================================================================
>[   51.162937] BUG: KCSAN: data-race in common_perm_cond / kernfs_refresh_inode
>
>[   51.162993] read to 0x00000000806f9e00 of 2 bytes by task 671 on cpu 3:
>[   51.163014]  common_perm_cond+0xe4/0x3c8
>[   51.163034]  apparmor_inode_getattr+0x3e/0x58
>[   51.163053]  security_inode_getattr+0xa6/0xe8
>[   51.163073]  vfs_fstat+0x56/0xc0
>[   51.163090]  __do_sys_newfstat+0x3a/0x80
>[   51.163107]  __s390x_sys_newfstat+0x54/0x70
>[   51.163125]  do_syscall+0x1c6/0x210
>[   51.163143]  __do_syscall+0xc8/0xf0
>[   51.163161]  system_call+0x70/0x98
>
>[   51.163189] write to 0x00000000806f9e00 of 2 bytes by task 675 on cpu 1:
>[   51.163207]  kernfs_refresh_inode+0x56/0x1b8
>[   51.163225]  kernfs_iop_permission+0x88/0xc8
>[   51.163242]  inode_permission+0x1a0/0x2d0
>[   51.163258]  link_path_walk.part.0.constprop.0+0x494/0x678
>[   51.163277]  path_openat+0x148/0x1c88
>[   51.163294]  do_filp_open+0x13c/0x228
>[   51.163311]  do_sys_openat2+0xd4/0x110
>[   51.163330]  do_sys_open+0x7a/0xc0
>[   51.163349]  __s390x_sys_openat+0x80/0xa0
>[   51.163375]  do_syscall+0x1c6/0x210
>[   51.163392]  __do_syscall+0xc8/0xf0
>[   51.163410]  system_call+0x70/0x98
>
>[   51.163436] Reported by Kernel Concurrency Sanitizer on:
>[   51.163449] CPU: 1 PID: 675 Comm: (udev-worker) Not tainted 6.7.4-1.g9e758e0-default #1 openSUSE Tumbleweed (unreleased) b54db25b5c91e1f741a77b8c006738e22884ded0
>[   51.163480] Hardware name: IBM 8561 LT1 400 (z/VM 7.3.0)
>[   51.163494] ==================================================================
>[   51.187943] ==================================================================
>[   51.187974] BUG: KCSAN: data-race in generic_fillattr / kernfs_refresh_inode
>
>[   51.188016] write to 0x00000000806f9e00 of 2 bytes by task 676 on cpu 3:
>[   51.188040]  kernfs_refresh_inode+0x56/0x1b8
>[   51.188064]  kernfs_iop_getattr+0xa4/0xe0
>[   51.188089]  vfs_getattr_nosec+0x15a/0x1d8
>[   51.188114]  vfs_fstat+0x74/0xc0
>[   51.188141]  __do_sys_newfstat+0x3a/0x80
>[   51.188169]  __s390x_sys_newfstat+0x54/0x70
>[   51.188199]  do_syscall+0x1c6/0x210
>[   51.188226]  __do_syscall+0xc8/0xf0
>[   51.188255]  system_call+0x70/0x98
>
>[   51.188304] read to 0x00000000806f9e00 of 2 bytes by task 667 on cpu 1:
>[   51.188334]  generic_fillattr+0x124/0x388
>[   51.188367]  kernfs_iop_getattr+0xbc/0xe0
>[   51.188402]  vfs_getattr_nosec+0x15a/0x1d8
>[   51.188438]  vfs_fstat+0x74/0xc0
>[   51.188480]  __do_sys_newfstat+0x3a/0x80
>[   51.188503]  __s390x_sys_newfstat+0x54/0x70
>[   51.188524]  do_syscall+0x1c6/0x210
>[   51.188547]  __do_syscall+0xc8/0xf0
>[   51.188576]  system_call+0x70/0x98
>
>[   51.188623] Reported by Kernel Concurrency Sanitizer on:
>[   51.188645] CPU: 1 PID: 667 Comm: (udev-worker) Not tainted 6.7.4-1.g9e758e0-default #1 openSUSE Tumbleweed (unreleased) b54db25b5c91e1f741a77b8c006738e22884ded0
>[   51.188690] Hardware name: IBM 8561 LT1 400 (z/VM 7.3.0)
>[   51.188717] ==================================================================
>[   51.196538] ==================================================================
>[   51.196576] BUG: KCSAN: data-race in set_nlink / set_nlink
>
>[   51.196634] read to 0x00000000806f9e48 of 4 bytes by task 667 on cpu 1:
>[   51.196668]  set_nlink+0x3c/0x120
>[   51.196702]  kernfs_refresh_inode+0x1a6/0x1b8
>[   51.196742]  kernfs_iop_permission+0x88/0xc8
>[   51.196761]  inode_permission+0x1a0/0x2d0
>[   51.196777]  link_path_walk.part.0.constprop.0+0x494/0x678
>[   51.196797]  path_lookupat+0x6c/0x360
>[   51.196814]  filename_lookup+0x156/0x2d8
>[   51.196836]  user_path_at_empty+0x66/0x90
>[   51.196859]  do_readlinkat+0x7c/0x1c0
>[   51.196884]  __s390x_sys_readlinkat+0x7c/0x98
>[   51.196909]  do_syscall+0x1c6/0x210
>[   51.196934]  __do_syscall+0xc8/0xf0
>[   51.196960]  system_call+0x70/0x98
>
>[   51.197007] write to 0x00000000806f9e48 of 4 bytes by task 686 on cpu 3:
>[   51.197036]  set_nlink+0x6e/0x120
>[   51.197064]  kernfs_refresh_inode+0x1a6/0x1b8
>[   51.197095]  kernfs_iop_getattr+0xa4/0xe0
>[   51.197123]  vfs_getattr_nosec+0x15a/0x1d8
>[   51.197156]  vfs_fstat+0x74/0xc0
>[   51.197185]  __do_sys_newfstat+0x3a/0x80
>[   51.197217]  __s390x_sys_newfstat+0x54/0x70
>[   51.197255]  do_syscall+0x1c6/0x210
>[   51.197277]  __do_syscall+0xc8/0xf0
>[   51.197298]  system_call+0x70/0x98
>
>[   51.197329] Reported by Kernel Concurrency Sanitizer on:
>[   51.197346] CPU: 3 PID: 686 Comm: (udev-worker) Not tainted 6.7.4-1.g9e758e0-default #1 openSUSE Tumbleweed (unreleased) b54db25b5c91e1f741a77b8c006738e22884ded0
>[   51.197382] Hardware name: IBM 8561 LT1 400 (z/VM 7.3.0)
>[   51.197405] ==================================================================
>[   51.331517] vmur: z/VM virtual unit record device driver loaded.
>[   51.512081] bridge: filtering via arp/ip/ip6tables is no longer available by default. Update your scripts to load br_netfilter if you need this.
>[   51.585398] qeth: register layer 2 discipline
>[   51.620629] qeth 0.0.0800: CHID: ff00 CHPID: 0
>[   51.637146] qeth 0.0.0802: qdio: OSA on SC 4 using AI:1 QEBSM:0 PRI:1 TDD:1 SIGA:RW 
>[   51.654341] qeth 0.0.0800: Device is a Virtual NIC QDIO card (level: V730)
>               with link type Virt.NIC QDIO.
>[   51.654992] qeth 0.0.0800: MAC address 02:00:00:00:00:10 successfully registered
>[   51.699103] qeth 0.0.0800 enc800: renamed from eth0
>[   51.808956] Adding 1520636k swap on /dev/dasda3.  Priority:-2 extents:1 across:1520636k SS
>[   51.880366] block device autoloading is deprecated and will be removed.
>[   52.034047] md0: detected capacity change from 0 to 173081344
>[   52.076623]  md0: p1
>[   52.210050] ==================================================================
>[   52.210092] BUG: KCSAN: data-race in capable / vtime_account_kernel
>
>[   52.210142] read to 0x000000008424c42c of 4 bytes by interrupt on cpu 2:
>[   52.210173]  vtime_account_kernel+0x70/0x178
>[   52.210204]  do_ext_irq+0x46/0x120
>[   52.210235]  ext_int_handler+0xc4/0xf0
>[   52.210267]  delay_loop+0x6a/0xd0
>[   52.210297]  delay_loop+0xa0/0xd0
>[   52.210328]  __udelay+0x36/0x48
>[   52.210359]  kcsan_setup_watchpoint+0x21a/0x568
>[   52.210393]  delay_loop+0x7c/0xd0
>[   52.210424]  __udelay+0x36/0x48
>[   52.210456]  kcsan_setup_watchpoint+0x21a/0x568
>[   52.210499]  delay_loop+0x7c/0xd0
>[   52.210517]  __udelay+0x36/0x48
>[   52.210544]  kcsan_setup_watchpoint+0x21a/0x568
>[   52.210568]  delay_loop+0x7c/0xd0
>[   52.210589]  __udelay+0x36/0x48
>[   52.210611]  kcsan_setup_watchpoint+0x21a/0x568
>[   52.210636]  delay_loop+0x90/0xd0
>[   52.210660]  __udelay+0x36/0x48
>[   52.210683]  kcsan_setup_watchpoint+0x21a/0x568
>[   52.210712]  capable+0xb6/0xf8
>[   52.210738]  vt_do_kdsk_ioctl+0x94/0x788
>[   52.210765]  vt_ioctl+0x26c/0x18f0
>[   52.210793]  tty_ioctl+0x670/0xd28
>[   52.210824]  __s390x_sys_ioctl+0x108/0x150
>[   52.210855]  do_syscall+0x1c6/0x210
>[   52.210882]  __do_syscall+0xc8/0xf0
>[   52.210912]  system_call+0x70/0x98
>
>[   52.210966] write to 0x000000008424c42c of 4 bytes by task 738 on cpu 2:
>[   52.210998]  capable+0xb6/0xf8
>[   52.211031]  vt_do_kdsk_ioctl+0x94/0x788
>[   52.211065]  vt_ioctl+0x26c/0x18f0
>[   52.211105]  tty_ioctl+0x670/0xd28
>[   52.211127]  __s390x_sys_ioctl+0x108/0x150
>[   52.211147]  do_syscall+0x1c6/0x210
>[   52.211171]  __do_syscall+0xc8/0xf0
>[   52.211196]  system_call+0x70/0x98
>
>[   52.211233] Reported by Kernel Concurrency Sanitizer on:
>[   52.211256] CPU: 2 PID: 738 Comm: loadkeys Not tainted 6.7.4-1.g9e758e0-default #1 openSUSE Tumbleweed (unreleased) b54db25b5c91e1f741a77b8c006738e22884ded0
>[   52.211299] Hardware name: IBM 8561 LT1 400 (z/VM 7.3.0)
>[   52.211324] ==================================================================
>[   52.440039] EXT4-fs (dasda1): mounting ext2 file system using the ext4 subsystem
>[   52.451909] EXT4-fs (dasda1): mounted filesystem af3b3bfb-f2f7-4af7-8cd4-c58be91905b5 r/w without journal. Quota mode: none.
>[   52.490112] systemd-journald[633]: Received client request to flush runtime journal.
>[   52.602382] systemd-journald[633]: /var/log/journal/daf32f63ed8a41f0aff4027ebb4ce254/system.journal: Journal file uses a different sequence number ID, rotating.
>[   52.602655] systemd-journald[633]: Rotating system journal.
>[   52.872769] audit: type=1400 audit(1708358448.716:2): apparmor="STATUS" operation="profile_load" profile="unconfined" name="nvidia_modprobe" pid=820 comm="apparmor_parser"
>[   52.873007] audit: type=1400 audit(1708358448.716:3): apparmor="STATUS" operation="profile_load" profile="unconfined" name="nvidia_modprobe//kmod" pid=820 comm="apparmor_parser"
>[   52.873173] audit: type=1400 audit(1708358448.723:4): apparmor="STATUS" operation="profile_load" profile="unconfined" name="lsb_release" pid=819 comm="apparmor_parser"
>[   52.873454] audit: type=1400 audit(1708358448.743:5): apparmor="STATUS" operation="profile_load" profile="unconfined" name="ghostscript" pid=817 comm="apparmor_parser"
>[   52.873919] audit: type=1400 audit(1708358448.743:6): apparmor="STATUS" operation="profile_load" profile="unconfined" name="ghostscript///usr/bin/hpijs" pid=817 comm="apparmor_parser"
>[   52.874925] audit: type=1400 audit(1708358448.756:7): apparmor="STATUS" operation="profile_load" profile="unconfined" name="ping" pid=816 comm="apparmor_parser"
>[   52.994205] audit: type=1400 audit(1708358448.849:8): apparmor="STATUS" operation="profile_load" profile="unconfined" name="php-fpm" pid=821 comm="apparmor_parser"
>[   53.034930] audit: type=1400 audit(1708358448.899:9): apparmor="STATUS" operation="profile_load" profile="unconfined" name="samba-rpcd" pid=824 comm="apparmor_parser"
>[   53.044641] audit: type=1400 audit(1708358448.926:10): apparmor="STATUS" operation="profile_load" profile="unconfined" name="samba-dcerpcd" pid=823 comm="apparmor_parser"
>[   53.056856] audit: type=1400 audit(1708358448.936:11): apparmor="STATUS" operation="profile_load" profile="unconfined" name="samba-bgqd" pid=822 comm="apparmor_parser"
>[   53.371609] SGI XFS with ACLs, security attributes, realtime, quota, no debug enabled
>[   53.657673] XFS (md0p1): Mounting V5 Filesystem 32ffaba9-bcd0-4590-9717-10ca7d4097dd
>[   53.973495] XFS (md0p1): Ending clean mount
>[   54.173669] xfs filesystem being mounted at /home supports timestamps until 2038-01-19 (0x7fffffff)
>[   56.420162] ==================================================================
>[   56.420205] BUG: KCSAN: data-race in rcu_all_qs / rcu_report_qs_rdp
>
>[   56.420256] write (marked) to 0x0000000170cb1c15 of 1 bytes by interrupt on cpu 3:
>[   56.420288]  rcu_report_qs_rdp+0x144/0x228
>[   56.420320]  rcu_core+0x860/0xe00
>[   56.420348]  rcu_core_si+0x30/0x48
>[   56.420377]  __do_softirq+0x14c/0x410
>[   56.420411]  irq_exit_rcu+0xae/0xc8
>[   56.420438]  do_ext_irq+0xd8/0x120
>[   56.420468]  ext_int_handler+0xc4/0xf0
>[   56.420501]  delay_loop+0x90/0xd0
>[   56.420533]  __udelay+0x36/0x48
>[   56.420565]  kcsan_setup_watchpoint+0x21a/0x568
>[   56.420599]  rcu_all_qs+0x4e/0x1b0
>[   56.420631]  __cond_resched+0x2c/0x78
>[   56.420663]  kmem_cache_alloc_lru+0x55c/0x688
>[   56.420708]  btrfs_alloc_inode+0x5a/0x330 [btrfs]
>[   56.421614]  alloc_inode+0x54/0x160
>[   56.421638]  iget5_locked+0x76/0xd0
>[   56.421659]  btrfs_iget_path+0xa2/0xc68 [btrfs]
>[   56.422473]  btrfs_iget+0x48/0x68 [btrfs]
>[   56.423295]  btrfs_lookup_dentry+0x7a0/0xa50 [btrfs]
>[   56.424131]  btrfs_lookup+0x3c/0x70 [btrfs]
>[   56.424957]  path_openat+0xae4/0x1c88
>[   56.424984]  do_filp_open+0x13c/0x228
>[   56.425009]  do_sys_openat2+0xd4/0x110
>[   56.425040]  do_sys_open+0x7a/0xc0
>[   56.425071]  __s390x_sys_openat+0x80/0xa0
>[   56.425104]  do_syscall+0x1c6/0x210
>[   56.425136]  __do_syscall+0xc8/0xf0
>[   56.425169]  system_call+0x70/0x98
>
>[   56.425225] read to 0x0000000170cb1c15 of 1 bytes by task 941 on cpu 3:
>[   56.425257]  rcu_all_qs+0x4e/0x1b0
>[   56.425289]  __cond_resched+0x2c/0x78
>[   56.425322]  kmem_cache_alloc_lru+0x55c/0x688
>[   56.425365]  btrfs_alloc_inode+0x5a/0x330 [btrfs]
>[   56.426191]  alloc_inode+0x54/0x160
>[   56.426210]  iget5_locked+0x76/0xd0
>[   56.426231]  btrfs_iget_path+0xa2/0xc68 [btrfs]
>[   56.427056]  btrfs_iget+0x48/0x68 [btrfs]
>[   56.427863]  btrfs_lookup_dentry+0x7a0/0xa50 [btrfs]
>[   56.428670]  btrfs_lookup+0x3c/0x70 [btrfs]
>[   56.429469]  path_openat+0xae4/0x1c88
>[   56.429478]  do_filp_open+0x13c/0x228
>[   56.429488]  do_sys_openat2+0xd4/0x110
>[   56.429498]  do_sys_open+0x7a/0xc0
>[   56.429509]  __s390x_sys_openat+0x80/0xa0
>[   56.429520]  do_syscall+0x1c6/0x210
>[   56.429530]  __do_syscall+0xc8/0xf0
>[   56.429540]  system_call+0x70/0x98
>
>[   56.429554] Reported by Kernel Concurrency Sanitizer on:
>[   56.429558] CPU: 3 PID: 941 Comm: wickedd-auto4 Not tainted 6.7.4-1.g9e758e0-default #1 openSUSE Tumbleweed (unreleased) b54db25b5c91e1f741a77b8c006738e22884ded0
>[   56.429572] Hardware name: IBM 8561 LT1 400 (z/VM 7.3.0)
>[   56.429576] ==================================================================
>[   57.263071] ==================================================================
>[   57.263109] BUG: KCSAN: data-race in rcu_all_qs / rcu_exp_need_qs
>
>[   57.263154] write (marked) to 0x0000000170cb1c15 of 1 bytes by interrupt on cpu 3:
>[   57.263181]  rcu_exp_need_qs+0x7a/0xc8
>[   57.263208]  rcu_exp_handler+0xd0/0x128
>[   57.263236]  __flush_smp_call_function_queue+0x23a/0x888
>[   57.263266]  generic_smp_call_function_single_interrupt+0x30/0x48
>[   57.263297]  smp_handle_ext_call+0x1e2/0x230
>[   57.263326]  do_ext_call_interrupt+0x80/0x98
>[   57.263355]  do_ext_interrupt+0x12e/0x170
>[   57.263388]  __handle_irq_event_percpu+0xa8/0x2e0
>[   57.263422]  handle_irq_event_percpu+0x34/0xa0
>[   57.263456]  handle_percpu_irq+0xe0/0x110
>[   57.263489]  generic_handle_irq+0x68/0x90
>[   57.263528]  do_IRQ+0x6c/0xa8
>[   57.263548]  do_irq_async+0x7e/0x108
>[   57.263567]  do_ext_irq+0xd2/0x120
>[   57.263586]  ext_int_handler+0xc4/0xf0
>[   57.263606]  delay_loop+0x6a/0xd0
>[   57.263624]  delay_loop+0xa0/0xd0
>[   57.263642]  __udelay+0x36/0x48
>[   57.263659]  kcsan_setup_watchpoint+0x21a/0x568
>[   57.263677]  rcu_all_qs+0x4e/0x1b0
>[   57.263696]  __cond_resched+0x2c/0x78
>[   57.263713]  unmap_page_range+0xdca/0x1840
>[   57.263733]  unmap_single_vma.isra.0+0xd0/0x140
>[   57.263752]  unmap_vmas+0x152/0x2c8
>[   57.263768]  exit_mmap+0x106/0x580
>[   57.263784]  __mmput+0x9e/0x228
>[   57.263800]  mmput+0x7e/0x90
>[   57.263815]  begin_new_exec+0xb6e/0x1878
>[   57.263835]  load_elf_binary+0x82c/0x2638
>[   57.263855]  bprm_execve+0x50c/0xb50
>[   57.263873]  do_execveat_common.isra.0+0x328/0x3d8
>[   57.263895]  __s390x_sys_execve+0x8a/0xa8
>[   57.263915]  do_syscall+0x1c6/0x210
>[   57.263934]  __do_syscall+0xc8/0xf0
>[   57.263953]  system_call+0x70/0x98
>
>[   57.263983] read to 0x0000000170cb1c15 of 1 bytes by task 1004 on cpu 3:
>[   57.264002]  rcu_all_qs+0x4e/0x1b0
>[   57.264022]  __cond_resched+0x2c/0x78
>[   57.264039]  unmap_page_range+0xdca/0x1840
>[   57.264057]  unmap_single_vma.isra.0+0xd0/0x140
>[   57.264076]  unmap_vmas+0x152/0x2c8
>[   57.264093]  exit_mmap+0x106/0x580
>[   57.264108]  __mmput+0x9e/0x228
>[   57.264123]  mmput+0x7e/0x90
>[   57.264137]  begin_new_exec+0xb6e/0x1878
>[   57.264156]  load_elf_binary+0x82c/0x2638
>[   57.264175]  bprm_execve+0x50c/0xb50
>[   57.264193]  do_execveat_common.isra.0+0x328/0x3d8
>[   57.264213]  __s390x_sys_execve+0x8a/0xa8
>[   57.264232]  do_syscall+0x1c6/0x210
>[   57.264250]  __do_syscall+0xc8/0xf0
>[   57.264269]  system_call+0x70/0x98
>
>[   57.264297] value changed: 0x00 -> 0x01
>
>[   57.264320] Reported by Kernel Concurrency Sanitizer on:
>[   57.264335] CPU: 3 PID: 1004 Comm: augenrules Kdump: loaded Not tainted 6.7.4-1.g9e758e0-default #1 openSUSE Tumbleweed (unreleased) b54db25b5c91e1f741a77b8c006738e22884ded0
>[   57.264370] Hardware name: IBM 8561 LT1 400 (z/VM 7.3.0)
>[   57.264385] ==================================================================
>[   57.557955] ==================================================================
>[   57.557993] BUG: KCSAN: data-race in kernfs_refresh_inode / kernfs_refresh_inode
>
>[   57.558035] write to 0x00000000806f9e00 of 2 bytes by task 971 on cpu 0:
>[   57.558058]  kernfs_refresh_inode+0x56/0x1b8
>[   57.558082]  kernfs_iop_permission+0x88/0xc8
>[   57.558106]  inode_permission+0x1a0/0x2d0
>[   57.558131]  link_path_walk.part.0.constprop.0+0x494/0x678
>[   57.558159]  path_lookupat+0x6c/0x360
>[   57.558184]  filename_lookup+0x156/0x2d8
>[   57.558211]  user_path_at_empty+0x66/0x90
>[   57.558239]  do_faccessat+0x19c/0x460
>[   57.558268]  __s390x_sys_access+0x5c/0x78
>[   57.558299]  do_syscall+0x1c6/0x210
>[   57.558330]  __do_syscall+0xc8/0xf0
>[   57.558363]  system_call+0x70/0x98
>
>[   57.558420] write to 0x00000000806f9e00 of 2 bytes by task 955 on cpu 1:
>[   57.558458]  kernfs_refresh_inode+0x56/0x1b8
>[   57.558476]  kernfs_iop_permission+0x88/0xc8
>[   57.558493]  inode_permission+0x1a0/0x2d0
>[   57.558509]  link_path_walk.part.0.constprop.0+0x494/0x678
>[   57.558529]  path_lookupat+0x6c/0x360
>[   57.558545]  filename_lookup+0x156/0x2d8
>[   57.558561]  user_path_at_empty+0x66/0x90
>[   57.558578]  do_faccessat+0x19c/0x460
>[   57.558595]  __s390x_sys_access+0x5c/0x78
>[   57.558613]  do_syscall+0x1c6/0x210
>[   57.558630]  __do_syscall+0xc8/0xf0
>[   57.558647]  system_call+0x70/0x98
>
>[   57.558673] Reported by Kernel Concurrency Sanitizer on:
>[   57.558688] CPU: 1 PID: 955 Comm: wickedd-dhcp6 Kdump: loaded Not tainted 6.7.4-1.g9e758e0-default #1 openSUSE Tumbleweed (unreleased) b54db25b5c91e1f741a77b8c006738e22884ded0
>[   57.558722] Hardware name: IBM 8561 LT1 400 (z/VM 7.3.0)
>[   57.558737] ==================================================================
>[   57.688008] NET: Registered PF_PACKET protocol family
>[   69.523384] ==================================================================
>[   69.523428] BUG: KCSAN: data-race in rcu_all_qs / rcu_report_qs_rdp
>
>[   69.523472] write (marked) to 0x0000000170c73c15 of 1 bytes by interrupt on cpu 1:
>[   69.523496]  rcu_report_qs_rdp+0x144/0x228
>[   69.523523]  rcu_core+0x860/0xe00
>[   69.523548]  rcu_core_si+0x30/0x48
>[   69.523573]  __do_softirq+0x14c/0x410
>[   69.523600]  irq_exit_rcu+0xae/0xc8
>[   69.523623]  do_ext_irq+0xd8/0x120
>[   69.523648]  ext_int_handler+0xc4/0xf0
>[   69.523674]  __tsan_read_range+0x68/0x1a8
>[   69.523701]  delay_loop+0x7c/0xd0
>[   69.523727]  __udelay+0x36/0x48
>[   69.523754]  kcsan_setup_watchpoint+0x21a/0x568
>[   69.523784]  delay_loop+0x90/0xd0
>[   69.523814]  __udelay+0x36/0x48
>[   69.523843]  kcsan_setup_watchpoint+0x21a/0x568
>[   69.523875]  delay_loop+0x7c/0xd0
>[   69.523907]  __udelay+0x36/0x48
>[   69.523959]  kcsan_setup_watchpoint+0x21a/0x568
>[   69.523976]  delay_loop+0x7c/0xd0
>[   69.523994]  __udelay+0x36/0x48
>[   69.524009]  kcsan_setup_watchpoint+0x21a/0x568
>[   69.524026]  delay_loop+0x7c/0xd0
>[   69.524055]  __udelay+0x36/0x48
>[   69.524074]  kcsan_setup_watchpoint+0x21a/0x568
>[   69.524096]  rcu_all_qs+0x4e/0x1b0
>[   69.524119]  __cond_resched+0x2c/0x78
>[   69.524141]  down_write+0x30/0xf0
>[   69.524163]  anon_vma_clone+0xdc/0x338
>[   69.524189]  anon_vma_fork+0x68/0x320
>[   69.524213]  dup_mmap+0x95a/0xe08
>[   69.524236]  copy_process+0x1a74/0x3130
>[   69.524262]  kernel_clone+0xc8/0x568
>[   69.524288]  __do_sys_clone+0xcc/0xe8
>[   69.524315]  __s390x_sys_clone+0x90/0xb0
>[   69.524343]  do_syscall+0x1c6/0x210
>[   69.524373]  __do_syscall+0xc8/0xf0
>[   69.524403]  system_call+0x70/0x98
>
>[   69.524456] read to 0x0000000170c73c15 of 1 bytes by task 1 on cpu 1:
>[   69.524490]  rcu_all_qs+0x4e/0x1b0
>[   69.524506]  __cond_resched+0x2c/0x78
>[   69.524537]  down_write+0x30/0xf0
>[   69.524555]  anon_vma_clone+0xdc/0x338
>[   69.524574]  anon_vma_fork+0x68/0x320
>[   69.524594]  dup_mmap+0x95a/0xe08
>[   69.524612]  copy_process+0x1a74/0x3130
>[   69.524632]  kernel_clone+0xc8/0x568
>[   69.524651]  __do_sys_clone+0xcc/0xe8
>[   69.524672]  __s390x_sys_clone+0x90/0xb0
>[   69.524695]  do_syscall+0x1c6/0x210
>[   69.524718]  __do_syscall+0xc8/0xf0
>[   69.524743]  system_call+0x70/0x98
>
>[   69.524787] Reported by Kernel Concurrency Sanitizer on:
>[   69.524812] CPU: 1 PID: 1 Comm: systemd Kdump: loaded Not tainted 6.7.4-1.g9e758e0-default #1 openSUSE Tumbleweed (unreleased) b54db25b5c91e1f741a77b8c006738e22884ded0
>[   69.524856] Hardware name: IBM 8561 LT1 400 (z/VM 7.3.0)
>[   69.524883] ==================================================================
>[   69.842248] ==================================================================
>[   69.842292] BUG: KCSAN: data-race in rcu_all_qs / rcu_exp_need_qs
>
>[   69.842337] write (marked) to 0x0000000170c54c15 of 1 bytes by interrupt on cpu 0:
>[   69.842363]  rcu_exp_need_qs+0x7a/0xc8
>[   69.842390]  rcu_exp_handler+0xd0/0x128
>[   69.842418]  __flush_smp_call_function_queue+0x23a/0x888
>[   69.842446]  generic_smp_call_function_single_interrupt+0x30/0x48
>[   69.842478]  smp_handle_ext_call+0x1e2/0x230
>[   69.842505]  do_ext_call_interrupt+0x80/0x98
>[   69.842532]  do_ext_interrupt+0x12e/0x170
>[   69.842566]  __handle_irq_event_percpu+0xa8/0x2e0
>[   69.842600]  handle_irq_event_percpu+0x34/0xa0
>[   69.842631]  handle_percpu_irq+0xe0/0x110
>[   69.842661]  generic_handle_irq+0x68/0x90
>[   69.842694]  do_IRQ+0x6c/0xa8
>[   69.842728]  do_irq_async+0x7e/0x108
>[   69.842763]  do_ext_irq+0xd2/0x120
>[   69.845504]  ext_int_handler+0xc4/0xf0
>[   69.845533]  __tsan_read8+0x94/0x1a0
>[   69.845554]  delay_loop+0xa0/0xd0
>[   69.845573]  __udelay+0x36/0x48
>[   69.845603]  kcsan_setup_watchpoint+0x21a/0x568
>[   69.845626]  delay_loop+0x7c/0xd0
>[   69.845649]  __udelay+0x36/0x48
>[   69.845671]  kcsan_setup_watchpoint+0x21a/0x568
>[   69.845697]  delay_loop+0x7c/0xd0
>[   69.845723]  __udelay+0x36/0x48
>[   69.845748]  kcsan_setup_watchpoint+0x21a/0x568
>[   69.845775]  delay_loop+0x7c/0xd0
>[   69.845803]  __udelay+0x36/0x48
>[   69.845830]  kcsan_setup_watchpoint+0x21a/0x568
>[   69.845860]  rcu_all_qs+0x4e/0x1b0
>[   69.845891]  __cond_resched+0x2c/0x78
>[   69.845921]  __alloc_pages_bulk+0x622/0x8d0
>[   69.845954]  alloc_pages_bulk_array_mempolicy+0x1ce/0x290
>[   69.845992]  __vmalloc_node_range+0x804/0xa00
>[   69.846027]  module_alloc+0xba/0x168
>[   69.846059]  load_module+0x28c6/0x4180
>[   69.850524]  __do_sys_init_module+0x2c6/0x2f8
>[   69.850551]  __s390x_sys_init_module+0x68/0x88
>[   69.850574]  do_syscall+0x1c6/0x210
>[   69.850596]  __do_syscall+0xc8/0xf0
>[   69.850619]  system_call+0x70/0x98
>
>[   69.850658] read to 0x0000000170c54c15 of 1 bytes by task 1576 on cpu 0:
>[   69.850683]  rcu_all_qs+0x4e/0x1b0
>[   69.850713]  __cond_resched+0x2c/0x78
>[   69.850738]  __alloc_pages_bulk+0x622/0x8d0
>[   69.850763]  alloc_pages_bulk_array_mempolicy+0x1ce/0x290
>[   69.850792]  __vmalloc_node_range+0x804/0xa00
>[   69.850820]  module_alloc+0xba/0x168
>[   69.850847]  load_module+0x28c6/0x4180
>[   69.850894]  __do_sys_init_module+0x2c6/0x2f8
>[   69.850924]  __s390x_sys_init_module+0x68/0x88
>[   69.850955]  do_syscall+0x1c6/0x210
>[   69.850985]  __do_syscall+0xc8/0xf0
>[   69.851018]  system_call+0x70/0x98
>
>[   69.851074] value changed: 0x00 -> 0x01
>
>[   69.855545] Reported by Kernel Concurrency Sanitizer on:
>[   69.855563] CPU: 0 PID: 1576 Comm: modprobe Kdump: loaded Not tainted 6.7.4-1.g9e758e0-default #1 openSUSE Tumbleweed (unreleased) b54db25b5c91e1f741a77b8c006738e22884ded0
>[   69.855605] Hardware name: IBM 8561 LT1 400 (z/VM 7.3.0)
>[   69.855627] ==================================================================
>[   69.888243] FS-Cache: Loaded
>[   70.281481] RPC: Registered named UNIX socket transport module.
>[   70.282431] RPC: Registered udp transport module.
>[   70.282585] RPC: Registered tcp transport module.
>[   70.282604] RPC: Registered tcp-with-tls transport module.
>[   70.283114] RPC: Registered tcp NFSv4.1 backchannel transport module.
>[   70.766707] ==================================================================
>[   70.766749] BUG: KCSAN: data-race in __hrtimer_run_queues / hrtimer_active
>
>[   70.766798] read to 0x0000000170c43f18 of 8 bytes by interrupt on cpu 3:
>[   70.766827]  hrtimer_active+0x90/0x110
>[   70.766854]  task_tick_fair+0x52/0x3f0
>[   70.766886]  scheduler_tick+0xe6/0x460
>[   70.766916]  update_process_times+0x104/0x120
>[   70.766949]  tick_sched_handle+0x8e/0xd8
>[   70.766983]  tick_nohz_highres_handler+0x82/0x108
>[   70.767019]  __hrtimer_run_queues+0x2d2/0x4d8
>[   70.767052]  hrtimer_interrupt+0x26a/0x528
>[   70.767086]  clock_comparator_work+0x74/0x90
>[   70.767122]  do_IRQ+0x8a/0xa8
>[   70.767158]  do_irq_async+0x7e/0x108
>[   70.767195]  do_ext_irq+0xd2/0x120
>[   70.767244]  ext_int_handler+0xc4/0xf0
>[   70.767268]  __tsan_read_range+0xde/0x1a8
>[   70.767291]  delay_loop+0x7c/0xd0
>[   70.767315]  __udelay+0x36/0x48
>[   70.767339]  kcsan_setup_watchpoint+0x21a/0x568
>[   70.767512]  delay_loop+0x7c/0xd0
>[   70.767913]  __udelay+0x36/0x48
>[   70.768045]  kcsan_setup_watchpoint+0x21a/0x568
>[   70.768250]  delay_loop+0x90/0xd0
>[   70.768792]  __udelay+0x36/0x48
>[   70.768946]  kcsan_setup_watchpoint+0x21a/0x568
>[   70.768983]  delay_loop+0x90/0xd0
>[   70.769021]  __udelay+0x36/0x48
>[   70.769058]  kcsan_setup_watchpoint+0x21a/0x568
>[   70.769103]  delay_loop+0x7c/0xd0
>[   70.769126]  __udelay+0x36/0x48
>[   70.769148]  kcsan_setup_watchpoint+0x21a/0x568
>[   70.769174]  __handle_mm_fault+0x456/0x23b0
>[   70.769203]  handle_mm_fault+0x278/0x458
>[   70.769476]  do_exception+0x216/0x930
>[   70.769554]  do_dat_exception+0x38/0x50
>[   70.769586]  __do_pgm_check+0xf4/0x188
>[   70.769619]  pgm_check_handler+0x116/0x168
>
>[   70.769677] write to 0x0000000170c43f18 of 8 bytes by interrupt on cpu 0:
>[   70.769714]  __hrtimer_run_queues+0x214/0x4d8
>[   70.770397]  hrtimer_interrupt+0x26a/0x528
>[   70.770421]  clock_comparator_work+0x74/0x90
>[   70.770445]  do_IRQ+0x8a/0xa8
>[   70.770470]  do_irq_async+0x7e/0x108
>[   70.770497]  do_ext_irq+0xd2/0x120
>[   70.770521]  ext_int_handler+0xc4/0xf0
>[   70.770643]  delay_loop+0x90/0xd0
>[   70.770692]  __udelay+0x36/0x48
>[   70.770721]  kcsan_setup_watchpoint+0x21a/0x568
>[   70.770849]  strncmp+0x40/0xb0
>[   70.770876]  trace_event_eval_update+0x37c/0x4f8
>[   70.771162]  trace_module_notify+0x64/0x68
>[   70.771463]  notifier_call_chain+0x92/0x1b8
>[   70.772092]  blocking_notifier_call_chain_robust+0x7a/0xe8
>[   70.772118]  load_module+0x332a/0x4180
>[   70.772375]  __do_sys_init_module+0x2c6/0x2f8
>[   70.772442]  __s390x_sys_init_module+0x68/0x88
>[   70.772502]  do_syscall+0x1c6/0x210
>[   70.772709]  __do_syscall+0xc8/0xf0
>[   70.772741]  system_call+0x70/0x98
>
>[   70.772796] Reported by Kernel Concurrency Sanitizer on:
>[   70.772826] CPU: 0 PID: 1576 Comm: modprobe Kdump: loaded Not tainted 6.7.4-1.g9e758e0-default #1 openSUSE Tumbleweed (unreleased) b54db25b5c91e1f741a77b8c006738e22884ded0
>[   70.773461] Hardware name: IBM 8561 LT1 400 (z/VM 7.3.0)
>[   70.773481] ==================================================================
>[   70.924570] Key type dns_resolver registered
>[   71.724548] ==================================================================
>[   71.724600] BUG: KCSAN: data-race in __fput / kernfs_refresh_inode
>
>[   71.724643] read to 0x00000000806f9e00 of 2 bytes by task 1699 on cpu 2:
>[   71.724667]  __fput+0x138/0x4f0
>[   71.724690]  __fput_sync+0x78/0x90
>[   71.724713]  __s390x_sys_close+0x82/0xc8
>[   71.724740]  do_syscall+0x1c6/0x210
>[   71.724767]  __do_syscall+0xc8/0xf0
>[   71.724798]  system_call+0x70/0x98
>
>[   71.724848] write to 0x00000000806f9e00 of 2 bytes by task 1735 on cpu 1:
>[   71.724879]  kernfs_refresh_inode+0x56/0x1b8
>[   71.724911]  kernfs_iop_permission+0x88/0xc8
>[   71.724943]  inode_permission+0x1a0/0x2d0
>[   71.724978]  link_path_walk.part.0.constprop.0+0x494/0x678
>[   71.725019]  path_lookupat+0x6c/0x360
>[   71.725058]  filename_lookup+0x156/0x2d8
>[   71.725092]  vfs_statx+0x96/0x228
>[   71.725140]  vfs_fstatat+0x98/0x120
>[   71.725162]  __do_sys_newfstatat+0x4a/0x78
>[   71.725185]  __s390x_sys_newfstatat+0x7c/0x98
>[   71.725207]  do_syscall+0x1c6/0x210
>[   71.725229]  __do_syscall+0xc8/0xf0
>[   71.725252]  system_call+0x70/0x98
>
>[   71.725287] Reported by Kernel Concurrency Sanitizer on:
>[   71.725304] CPU: 1 PID: 1735 Comm: dracut-install Kdump: loaded Not tainted 6.7.4-1.g9e758e0-default #1 openSUSE Tumbleweed (unreleased) b54db25b5c91e1f741a77b8c006738e22884ded0
>[   71.725344] Hardware name: IBM 8561 LT1 400 (z/VM 7.3.0)
>[   71.725363] ==================================================================
>[   71.778531] NFS: Registering the id_resolver key type
>[   71.778806] Key type id_resolver registered
>[   71.779095] Key type id_legacy registered
>[   73.953385] ==================================================================
>[   73.953428] BUG: KCSAN: data-race in rcu_all_qs / rcu_report_qs_rdp
>
>[   73.953473] write (marked) to 0x0000000170c73c15 of 1 bytes by interrupt on cpu 1:
>[   73.953499]  rcu_report_qs_rdp+0x144/0x228
>[   73.953526]  rcu_core+0x860/0xe00
>[   73.953552]  rcu_core_si+0x30/0x48
>[   73.953577]  __do_softirq+0x14c/0x410
>[   73.953606]  irq_exit_rcu+0xae/0xc8
>[   73.953630]  do_ext_irq+0xd8/0x120
>[   73.953658]  ext_int_handler+0xc4/0xf0
>[   73.953687]  __tsan_read_range+0x162/0x1a8
>[   73.953717]  delay_loop+0x7c/0xd0
>[   73.953746]  __udelay+0x36/0x48
>[   73.953776]  kcsan_setup_watchpoint+0x21a/0x568
>[   73.953807]  rcu_all_qs+0x4e/0x1b0
>[   73.953839]  __cond_resched+0x2c/0x78
>[   73.953878]  apparmor_file_alloc_security+0xb0/0x3c8
>[   73.953917]  security_file_alloc+0xb8/0x190
>[   73.953976]  init_file+0x82/0x178
>[   73.953994]  alloc_empty_file+0xa6/0x1d0
>[   73.954011]  path_openat+0x6c/0x1c88
>[   73.954045]  do_filp_open+0x13c/0x228
>[   73.954066]  do_sys_openat2+0xd4/0x110
>[   73.954090]  do_sys_open+0x7a/0xc0
>[   73.954114]  __s390x_sys_openat+0x80/0xa0
>[   73.954145]  do_syscall+0x1c6/0x210
>[   73.954170]  __do_syscall+0xc8/0xf0
>[   73.954196]  system_call+0x70/0x98
>
>[   73.954240] read to 0x0000000170c73c15 of 1 bytes by task 2039 on cpu 1:
>[   73.954267]  rcu_all_qs+0x4e/0x1b0
>[   73.954296]  __cond_resched+0x2c/0x78
>[   73.954372]  apparmor_file_alloc_security+0xb0/0x3c8
>[   73.954403]  security_file_alloc+0xb8/0x190
>[   73.954433]  init_file+0x82/0x178
>[   73.954460]  alloc_empty_file+0xa6/0x1d0
>[   73.954489]  path_openat+0x6c/0x1c88
>[   73.954518]  do_filp_open+0x13c/0x228
>[   73.954549]  do_sys_openat2+0xd4/0x110
>[   73.954586]  do_sys_open+0x7a/0xc0
>[   73.954604]  __s390x_sys_openat+0x80/0xa0
>[   73.954624]  do_syscall+0x1c6/0x210
>[   73.954643]  __do_syscall+0xc8/0xf0
>[   73.954665]  system_call+0x70/0x98
>
>[   73.954702] Reported by Kernel Concurrency Sanitizer on:
>[   73.954722] CPU: 1 PID: 2039 Comm: pkg-config Kdump: loaded Not tainted 6.7.4-1.g9e758e0-default #1 openSUSE Tumbleweed (unreleased) b54db25b5c91e1f741a77b8c006738e22884ded0
>[   73.954763] Hardware name: IBM 8561 LT1 400 (z/VM 7.3.0)
>[   73.954786] ==================================================================
>[   75.328217] systemd-journald[633]: Time jumped backwards, rotating.
>[   77.878278] ==================================================================
>[   77.878313] BUG: KCSAN: data-race in arch_vcpu_is_preempted+0x4a/0xe0
>
>[   77.878352] race at unknown origin, with read to 0x0000000000424288 of 8 bytes by task 2617 on cpu 1:
>[   77.878380]  arch_vcpu_is_preempted+0x4a/0xe0
>[   77.878403]  rwsem_spin_on_owner+0x84/0x178
>[   77.878432]  rwsem_down_write_slowpath+0xfc/0xd60
>[   77.878466]  down_write+0xd8/0xf0
>[   77.878490]  dissolve_on_fput+0x36/0x168
>[   77.878518]  __fput+0x4ea/0x4f0
>[   77.878551]  __fput_sync+0x78/0x90
>[   77.878577]  __s390x_sys_close+0x82/0xc8
>[   77.878608]  do_syscall+0x1c6/0x210
>[   77.878637]  __do_syscall+0xc8/0xf0
>[   77.878669]  system_call+0x70/0x98
>
>[   77.878725] value changed: 0x000000000000000c -> 0x0000000000000004
>
>[   77.878781] Reported by Kernel Concurrency Sanitizer on:
>[   77.878832] CPU: 1 PID: 2617 Comm: (sd-mkdcreds) Kdump: loaded Not tainted 6.7.4-1.g9e758e0-default #1 openSUSE Tumbleweed (unreleased) b54db25b5c91e1f741a77b8c006738e22884ded0
>[   77.878883] Hardware name: IBM 8561 LT1 400 (z/VM 7.3.0)
>[   77.878904] ==================================================================
>[   80.450183] ==================================================================
>[   80.450228] BUG: KCSAN: data-race in rcu_all_qs / rcu_report_qs_rdp
>
>[   80.450272] write (marked) to 0x0000000170c92c15 of 1 bytes by interrupt on cpu 2:
>[   80.450297]  rcu_report_qs_rdp+0x144/0x228
>[   80.450322]  rcu_core+0x860/0xe00
>[   80.450346]  rcu_core_si+0x30/0x48
>[   80.450373]  __do_softirq+0x14c/0x410
>[   80.450404]  irq_exit_rcu+0xae/0xc8
>[   80.450430]  do_ext_irq+0xd8/0x120
>[   80.450458]  ext_int_handler+0xc4/0xf0
>[   80.450487]  __tsan_read_range+0xda/0x1a8
>[   80.450515]  delay_loop+0x90/0xd0
>[   80.450544]  __udelay+0x36/0x48
>[   80.450573]  kcsan_setup_watchpoint+0x21a/0x568
>[   80.450604]  delay_loop+0x90/0xd0
>[   80.450633]  __udelay+0x36/0x48
>[   80.450664]  kcsan_setup_watchpoint+0x21a/0x568
>[   80.450697]  delay_loop+0x7c/0xd0
>[   80.450729]  __udelay+0x36/0x48
>[   80.450769]  kcsan_setup_watchpoint+0x21a/0x568
>[   80.450789]  rcu_all_qs+0x4e/0x1b0
>[   80.450812]  __cond_resched+0x2c/0x78
>[   80.450832]  unmap_page_range+0x9d0/0x1840
>[   80.450856]  unmap_single_vma.isra.0+0xd0/0x140
>[   80.450879]  unmap_vmas+0x152/0x2c8
>[   80.450901]  exit_mmap+0x106/0x580
>[   80.450923]  __mmput+0x9e/0x228
>[   80.450945]  mmput+0x7e/0x90
>[   80.450967]  do_exit+0x596/0x1390
>[   80.450993]  do_group_exit+0x7a/0x140
>[   80.451021]  __s390x_sys_exit_group+0x46/0x48
>[   80.451049]  do_syscall+0x1c6/0x210
>[   80.451078]  __do_syscall+0xc8/0xf0
>[   80.451106]  system_call+0x70/0x98
>
>[   80.451157] read to 0x0000000170c92c15 of 1 bytes by task 2907 on cpu 2:
>[   80.451188]  rcu_all_qs+0x4e/0x1b0
>[   80.451219]  __cond_resched+0x2c/0x78
>[   80.451250]  unmap_page_range+0x9d0/0x1840
>[   80.451283]  unmap_single_vma.isra.0+0xd0/0x140
>[   80.451320]  unmap_vmas+0x152/0x2c8
>[   80.451339]  exit_mmap+0x106/0x580
>[   80.451357]  __mmput+0x9e/0x228
>[   80.451376]  mmput+0x7e/0x90
>[   80.451394]  do_exit+0x596/0x1390
>[   80.451416]  do_group_exit+0x7a/0x140
>[   80.451439]  __s390x_sys_exit_group+0x46/0x48
>[   80.451464]  do_syscall+0x1c6/0x210
>[   80.451488]  __do_syscall+0xc8/0xf0
>[   80.451512]  system_call+0x70/0x98
>
>[   80.451554] Reported by Kernel Concurrency Sanitizer on:
>[   80.451578] CPU: 2 PID: 2907 Comm: dracut Kdump: loaded Not tainted 6.7.4-1.g9e758e0-default #1 openSUSE Tumbleweed (unreleased) b54db25b5c91e1f741a77b8c006738e22884ded0
>[   80.451624] Hardware name: IBM 8561 LT1 400 (z/VM 7.3.0)
>[   80.451651] ==================================================================
>[   84.353531] ==================================================================
>[   84.353578] BUG: KCSAN: data-race in rcu_all_qs / rcu_report_qs_rdp
>
>[   84.353622] write (marked) to 0x0000000170c73c15 of 1 bytes by interrupt on cpu 1:
>[   84.353647]  rcu_report_qs_rdp+0x144/0x228
>[   84.353672]  rcu_core+0x860/0xe00
>[   84.353696]  rcu_core_si+0x30/0x48
>[   84.353721]  __do_softirq+0x14c/0x410
>[   84.353750]  irq_exit_rcu+0xae/0xc8
>[   84.353774]  do_ext_irq+0xd8/0x120
>[   84.353801]  ext_int_handler+0xc4/0xf0
>[   84.353829]  delay_loop+0x7c/0xd0
>[   84.353856]  __udelay+0x36/0x48
>[   84.353883]  kcsan_setup_watchpoint+0x21a/0x568
>[   84.353913]  delay_loop+0x7c/0xd0
>[   84.353942]  __udelay+0x36/0x48
>[   84.353972]  kcsan_setup_watchpoint+0x21a/0x568
>[   84.354004]  delay_loop+0x90/0xd0
>[   84.354035]  __udelay+0x36/0x48
>[   84.354066]  kcsan_setup_watchpoint+0x21a/0x568
>[   84.354112]  delay_loop+0x90/0xd0
>[   84.354128]  __udelay+0x36/0x48
>[   84.354144]  kcsan_setup_watchpoint+0x21a/0x568
>[   84.354162]  delay_loop+0x7c/0xd0
>[   84.354178]  __udelay+0x36/0x48
>[   84.354195]  kcsan_setup_watchpoint+0x21a/0x568
>[   84.354212]  delay_loop+0x90/0xd0
>[   84.354229]  __udelay+0x36/0x48
>[   84.354245]  kcsan_setup_watchpoint+0x21a/0x568
>[   84.354263]  rcu_all_qs+0x4e/0x1b0
>[   84.354281]  __cond_resched+0x2c/0x78
>[   84.354297]  copy_strings.isra.0+0x160/0x4d8
>[   84.354318]  do_execveat_common.isra.0+0x29e/0x3d8
>[   84.354338]  __s390x_sys_execve+0x8a/0xa8
>[   84.354358]  do_syscall+0x1c6/0x210
>[   84.354376]  __do_syscall+0xc8/0xf0
>[   84.354395]  system_call+0x70/0x98
>
>[   84.354422] read to 0x0000000170c73c15 of 1 bytes by task 3135 on cpu 1:
>[   84.354441]  rcu_all_qs+0x4e/0x1b0
>[   84.354460]  __cond_resched+0x2c/0x78
>[   84.354478]  copy_strings.isra.0+0x160/0x4d8
>[   84.354498]  do_execveat_common.isra.0+0x29e/0x3d8
>[   84.354519]  __s390x_sys_execve+0x8a/0xa8
>[   84.354539]  do_syscall+0x1c6/0x210
>[   84.354557]  __do_syscall+0xc8/0xf0
>[   84.354575]  system_call+0x70/0x98
>
>[   84.354601] Reported by Kernel Concurrency Sanitizer on:
>[   84.354616] CPU: 1 PID: 3135 Comm: dracut-install Kdump: loaded Not tainted 6.7.4-1.g9e758e0-default #1 openSUSE Tumbleweed (unreleased) b54db25b5c91e1f741a77b8c006738e22884ded0
>[   84.354649] Hardware name: IBM 8561 LT1 400 (z/VM 7.3.0)
>[   84.354663] ==================================================================
>[   85.143407] ==================================================================
>[   85.143447] BUG: KCSAN: data-race in arch_vcpu_is_preempted+0x4a/0xe0
>
>[   85.143486] race at unknown origin, with read to 0x0000000000422288 of 8 bytes by task 3210 on cpu 0:
>[   85.143514]  arch_vcpu_is_preempted+0x4a/0xe0
>[   85.143537]  mutex_spin_on_owner+0xb4/0x170
>[   85.143565]  __mutex_lock.constprop.0+0x760/0xfc8
>[   85.143594]  __mutex_lock_slowpath+0x38/0x50
>[   85.143621]  mutex_lock+0xb4/0xc8
>[   85.143647]  pipe_write+0x98/0xab8
>[   85.143675]  vfs_write+0x33c/0x588
>[   85.143701]  ksys_write+0x108/0x150
>[   85.143727]  __s390x_sys_write+0x68/0x88
>[   85.143755]  do_syscall+0x1c6/0x210
>[   85.143785]  __do_syscall+0xc8/0xf0
>[   85.143816]  system_call+0x70/0x98
>
>[   85.143871] value changed: 0x000000000000000c -> 0x0000000000000004
>
>[   85.144160] Reported by Kernel Concurrency Sanitizer on:
>[   85.144191] CPU: 0 PID: 3210 Comm: tail Kdump: loaded Not tainted 6.7.4-1.g9e758e0-default #1 openSUSE Tumbleweed (unreleased) b54db25b5c91e1f741a77b8c006738e22884ded0
>[   85.144228] Hardware name: IBM 8561 LT1 400 (z/VM 7.3.0)
>[   85.144249] ==================================================================
>[   86.206117] ==================================================================
>[   86.206163] BUG: KCSAN: data-race in pipe_read / pipe_write
>
>[   86.206205] read (marked) to 0x00000000978e4714 of 4 bytes by task 3216 on cpu 2:
>[   86.206229]  pipe_write+0x2b2/0xab8
>[   86.206253]  vfs_write+0x33c/0x588
>[   86.206274]  ksys_write+0x108/0x150
>[   86.206294]  __s390x_sys_write+0x68/0x88
>[   86.206317]  do_syscall+0x1c6/0x210
>[   86.206341]  __do_syscall+0xc8/0xf0
>[   86.206369]  system_call+0x70/0x98
>
>[   86.206414] write to 0x00000000978e4714 of 4 bytes by task 3212 on cpu 1:
>[   86.206442]  pipe_read+0x3b4/0x7d0
>[   86.206470]  vfs_read+0x466/0x498
>[   86.206496]  ksys_read+0x108/0x150
>[   86.206522]  __s390x_sys_read+0x68/0x88
>[   86.206550]  do_syscall+0x1c6/0x210
>[   86.206580]  __do_syscall+0xc8/0xf0
>[   86.206612]  system_call+0x70/0x98
>
>[   86.206673] Reported by Kernel Concurrency Sanitizer on:
>[   86.206687] CPU: 1 PID: 3212 Comm: cpio Kdump: loaded Not tainted 6.7.4-1.g9e758e0-default #1 openSUSE Tumbleweed (unreleased) b54db25b5c91e1f741a77b8c006738e22884ded0
>[   86.206719] Hardware name: IBM 8561 LT1 400 (z/VM 7.3.0)
>[   86.206733] ==================================================================
>[   87.050172] ==================================================================
>[   87.050219] BUG: KCSAN: data-race in __hrtimer_run_queues / hrtimer_active
>
>[   87.050265] read to 0x0000000170c43f18 of 8 bytes by interrupt on cpu 3:
>[   87.050291]  hrtimer_active+0x90/0x110
>[   87.050316]  task_tick_fair+0x52/0x3f0
>[   87.050345]  scheduler_tick+0xe6/0x460
>[   87.050372]  update_process_times+0x104/0x120
>[   87.050399]  tick_sched_handle+0x8e/0xd8
>[   87.050429]  tick_nohz_highres_handler+0x82/0x108
>[   87.050462]  __hrtimer_run_queues+0x2d2/0x4d8
>[   87.050492]  hrtimer_interrupt+0x26a/0x528
>[   87.050522]  clock_comparator_work+0x74/0x90
>[   87.050556]  do_IRQ+0x8a/0xa8
>[   87.050591]  do_irq_async+0x7e/0x108
>[   87.050624]  do_ext_irq+0xd2/0x120
>[   87.050659]  ext_int_handler+0xc4/0xf0
>[   87.050695]  __tsan_read8+0x6/0x1a0
>[   87.050732]  delay_loop+0xa0/0xd0
>[   87.050807]  __udelay+0x36/0x48
>[   87.050829]  kcsan_setup_watchpoint+0x21a/0x568
>[   87.050852]  delay_loop+0x7c/0xd0
>[   87.050873]  __udelay+0x36/0x48
>[   87.050895]  kcsan_setup_watchpoint+0x21a/0x568
>[   87.050919]  delay_loop+0x90/0xd0
>[   87.050942]  __udelay+0x36/0x48
>[   87.050965]  kcsan_setup_watchpoint+0x21a/0x568
>[   87.050992]  delay_loop+0x90/0xd0
>[   87.051017]  __udelay+0x36/0x48
>[   87.051043]  kcsan_setup_watchpoint+0x21a/0x568
>[   87.051072]  delay_loop+0x7c/0xd0
>[   87.051100]  __udelay+0x36/0x48
>[   87.051128]  kcsan_setup_watchpoint+0x21a/0x568
>[   87.051159]  delay_loop+0x90/0xd0
>[   87.051189]  __udelay+0x36/0x48
>[   87.051219]  kcsan_setup_watchpoint+0x21a/0x568
>[   87.051253]  btrfs_get_64+0xa2/0x260 [btrfs]
>[   87.052301]  __btrfs_check_leaf+0x1400/0x27e8 [btrfs]
>[   87.053201]  btrfs_check_leaf+0x38/0x60 [btrfs]
>[   87.054104]  btree_csum_one_bio+0x216/0x420 [btrfs]
>[   87.055017]  btrfs_submit_bio+0xae0/0xb10 [btrfs]
>[   87.055896]  write_one_eb+0x47e/0x7a8 [btrfs]
>[   87.056780]  btree_write_cache_pages+0x99a/0xaf0 [btrfs]
>[   87.057659]  btree_writepages+0xb8/0xf0 [btrfs]
>[   87.058543]  do_writepages+0xa8/0x2d8
>[   87.058571]  __writeback_single_inode+0x78/0x768
>[   87.058603]  writeback_sb_inodes+0x448/0x9f8
>[   87.058631]  wb_writeback+0x138/0x5a0
>[   87.058659]  wb_workfn+0x196/0x9a8
>[   87.058689]  process_one_work+0x3b6/0x838
>[   87.058718]  worker_thread+0x75e/0xb10
>[   87.058747]  kthread+0x21a/0x230
>[   87.058781]  __ret_from_fork+0x6c/0xb8
>[   87.058813]  ret_from_fork+0xa/0x30
>
>[   87.058871] write to 0x0000000170c43f18 of 8 bytes by interrupt on cpu 0:
>[   87.058904]  __hrtimer_run_queues+0x214/0x4d8
>[   87.058938]  hrtimer_interrupt+0x26a/0x528
>[   87.058973]  clock_comparator_work+0x74/0x90
>[   87.059017]  do_IRQ+0x8a/0xa8
>[   87.059039]  do_irq_async+0x7e/0x108
>[   87.059065]  do_ext_irq+0xd2/0x120
>[   87.059091]  ext_int_handler+0xc4/0xf0
>[   87.059118]  __tsan_read8+0x34/0x1a0
>[   87.059143]  delay_loop+0xbe/0xd0
>[   87.059169]  delay_loop+0xa0/0xd0
>[   87.059196]  __udelay+0x36/0x48
>[   87.059222]  kcsan_setup_watchpoint+0x21a/0x568
>[   87.059250]  delay_loop+0x7c/0xd0
>[   87.059276]  __udelay+0x36/0x48
>[   87.059304]  kcsan_setup_watchpoint+0x21a/0x568
>[   87.059336]  delay_loop+0x7c/0xd0
>[   87.059366]  __udelay+0x36/0x48
>[   87.059398]  kcsan_setup_watchpoint+0x21a/0x568
>[   87.059432]  apparmor_file_alloc_security+0xcc/0x3c8
>[   87.059469]  security_file_alloc+0xb8/0x190
>[   87.059511]  init_file+0x82/0x178
>[   87.059545]  alloc_empty_file+0xa6/0x1d0
>[   87.059581]  path_openat+0x6c/0x1c88
>[   87.059618]  do_filp_open+0x13c/0x228
>[   87.059663]  do_sys_openat2+0xd4/0x110
>[   87.059688]  do_sys_open+0x7a/0xc0
>[   87.059709]  __s390x_sys_openat+0x80/0xa0
>[   87.059732]  do_syscall+0x1c6/0x210
>[   87.059755]  __do_syscall+0xc8/0xf0
>[   87.059779]  system_call+0x70/0x98
>
>[   87.059820] Reported by Kernel Concurrency Sanitizer on:
>[   87.059842] CPU: 0 PID: 3333 Comm: dracut-install Kdump: loaded Not tainted 6.7.4-1.g9e758e0-default #1 openSUSE Tumbleweed (unreleased) b54db25b5c91e1f741a77b8c006738e22884ded0
>[   87.059890] Hardware name: IBM 8561 LT1 400 (z/VM 7.3.0)
>[   87.059916] ==================================================================
>[   89.546508] ==================================================================
>[   89.546545] BUG: KCSAN: data-race in arch_vcpu_is_preempted+0x4a/0xe0
>
>[   89.546584] race at unknown origin, with read to 0x0000000000422288 of 8 bytes by task 3462 on cpu 2:
>[   89.546610]  arch_vcpu_is_preempted+0x4a/0xe0
>[   89.546632]  mutex_spin_on_owner+0xb4/0x170
>[   89.546660]  __mutex_lock.constprop.0+0x760/0xfc8
>[   89.546690]  __mutex_lock_slowpath+0x38/0x50
>[   89.546719]  mutex_lock+0xb4/0xc8
>[   89.546745]  pipe_release+0x4c/0x170
>[   89.546775]  __fput+0x12a/0x4f0
>[   89.546801]  __fput_sync+0x78/0x90
>[   89.546827]  __s390x_sys_close+0x82/0xc8
>[   89.546859]  do_syscall+0x1c6/0x210
>[   89.546888]  __do_syscall+0xc8/0xf0
>[   89.546920]  system_call+0x70/0x98
>
>[   89.546973] value changed: 0x000000000000000c -> 0x0000000000000004
>
>[   89.547033] Reported by Kernel Concurrency Sanitizer on:
>[   89.547048] CPU: 2 PID: 3462 Comm: find Kdump: loaded Not tainted 6.7.4-1.g9e758e0-default #1 openSUSE Tumbleweed (unreleased) b54db25b5c91e1f741a77b8c006738e22884ded0
>[   89.547096] Hardware name: IBM 8561 LT1 400 (z/VM 7.3.0)
>[   89.547115] ==================================================================
>[   91.302601] ==================================================================
>[   91.302646] BUG: KCSAN: data-race in pipe_read / pipe_release
>
>[   91.302690] read (marked) to 0x00000000843fc2a8 of 4 bytes by task 1655 on cpu 0:
>[   91.302716]  pipe_read+0x546/0x7d0
>[   91.302742]  vfs_read+0x466/0x498
>[   91.302763]  ksys_read+0x108/0x150
>[   91.302785]  __s390x_sys_read+0x68/0x88
>[   91.302809]  do_syscall+0x1c6/0x210
>[   91.302837]  __do_syscall+0xc8/0xf0
>[   91.302872]  system_call+0x70/0x98
>
>[   91.302919] write to 0x00000000843fc2a8 of 4 bytes by task 3570 on cpu 2:
>[   91.302947]  pipe_release+0x98/0x170
>[   91.302976]  __fput+0x12a/0x4f0
>[   91.303001]  __fput_sync+0x78/0x90
>[   91.303028]  __s390x_sys_close+0x82/0xc8
>[   91.303059]  do_syscall+0x1c6/0x210
>[   91.303089]  __do_syscall+0xc8/0xf0
>[   91.303121]  system_call+0x70/0x98
>
>[   91.303180] Reported by Kernel Concurrency Sanitizer on:
>[   91.303195] CPU: 2 PID: 3570 Comm: uname Kdump: loaded Not tainted 6.7.4-1.g9e758e0-default #1 openSUSE Tumbleweed (unreleased) b54db25b5c91e1f741a77b8c006738e22884ded0
>[   91.303227] Hardware name: IBM 8561 LT1 400 (z/VM 7.3.0)
>[   91.303241] ==================================================================
>[   92.680171] ==================================================================
>[   92.680212] BUG: KCSAN: data-race in arch_vcpu_is_preempted+0x4a/0xe0
>
>[   92.680255] race at unknown origin, with read to 0x0000000000426288 of 8 bytes by task 3759 on cpu 0:
>[   92.680286]  arch_vcpu_is_preempted+0x4a/0xe0
>[   92.680314]  rwsem_spin_on_owner+0x84/0x178
>[   92.680344]  rwsem_down_write_slowpath+0xfc/0xd60
>[   92.680374]  down_write+0xd8/0xf0
>[   92.680399]  mmap_region+0x672/0x1210
>[   92.680425]  do_mmap+0x598/0x6b0
>[   92.680450]  vm_mmap_pgoff+0x112/0x208
>[   92.680480]  ksys_mmap_pgoff+0x26e/0x428
>[   92.680512]  __s390x_sys_old_mmap+0xf2/0x148
>[   92.680547]  do_syscall+0x1c6/0x210
>[   92.680580]  __do_syscall+0xc8/0xf0
>[   92.680615]  system_call+0x70/0x98
>
>[   92.680676] value changed: 0x0000000000000004 -> 0x000000000000000c
>
>[   92.680790] Reported by Kernel Concurrency Sanitizer on:
>[   92.680818] CPU: 0 PID: 3759 Comm: sed Kdump: loaded Not tainted 6.7.4-1.g9e758e0-default #1 openSUSE Tumbleweed (unreleased) b54db25b5c91e1f741a77b8c006738e22884ded0
>[   92.680861] Hardware name: IBM 8561 LT1 400 (z/VM 7.3.0)
>[   92.680884] ==================================================================
>[   93.532524] device-mapper: uevent: version 1.0.3
>[   93.533931] device-mapper: ioctl: 4.48.0-ioctl (2023-03-01) initialised: dm-devel@redhat.com
>[   94.458956] block dasda: the capability attribute has been deprecated.
>[   94.461857] ==================================================================
>[   94.461887] BUG: KCSAN: data-race in set_nlink / set_nlink
>
>[   94.461926] read to 0x0000000080703748 of 4 bytes by task 3998 on cpu 2:
>[   94.461951]  set_nlink+0x3c/0x120
>[   94.461974]  kernfs_refresh_inode+0x1a6/0x1b8
>[   94.462000]  kernfs_iop_permission+0x88/0xc8
>[   94.462026]  inode_permission+0x1a0/0x2d0
>[   94.462051]  link_path_walk.part.0.constprop.0+0x494/0x678
>[   94.462081]  path_lookupat+0x6c/0x360
>[   94.462107]  filename_lookup+0x156/0x2d8
>[   94.462134]  vfs_statx+0x96/0x228
>[   94.462163]  vfs_fstatat+0x98/0x120
>[   94.462191]  __do_sys_newfstatat+0x4a/0x78
>[   94.462222]  __s390x_sys_newfstatat+0x7c/0x98
>[   94.462255]  do_syscall+0x1c6/0x210
>[   94.462287]  __do_syscall+0xc8/0xf0
>[   94.462341]  system_call+0x70/0x98
>
>[   94.462369] write to 0x0000000080703748 of 4 bytes by task 633 on cpu 3:
>[   94.462389]  set_nlink+0x6e/0x120
>[   94.462404]  kernfs_refresh_inode+0x1a6/0x1b8
>[   94.462421]  kernfs_iop_permission+0x88/0xc8
>[   94.462438]  inode_permission+0x1a0/0x2d0
>[   94.462453]  link_path_walk.part.0.constprop.0+0x494/0x678
>[   94.462472]  path_lookupat+0x6c/0x360
>[   94.462489]  filename_lookup+0x156/0x2d8
>[   94.462506]  user_path_at_empty+0x66/0x90
>[   94.462524]  do_readlinkat+0x7c/0x1c0
>[   94.462542]  __s390x_sys_readlinkat+0x7c/0x98
>[   94.462562]  do_syscall+0x1c6/0x210
>[   94.462580]  __do_syscall+0xc8/0xf0
>[   94.462599]  system_call+0x70/0x98
>
>[   94.462627] Reported by Kernel Concurrency Sanitizer on:
>[   94.462642] CPU: 3 PID: 633 Comm: systemd-journal Kdump: loaded Not tainted 6.7.4-1.g9e758e0-default #1 openSUSE Tumbleweed (unreleased) b54db25b5c91e1f741a77b8c006738e22884ded0
>[   94.462676] Hardware name: IBM 8561 LT1 400 (z/VM 7.3.0)
>[   94.462690] ==================================================================
>[   98.001443] ==================================================================
>[   98.001482] BUG: KCSAN: data-race in arch_vcpu_is_preempted+0x4a/0xe0
>
>[   98.001520] race at unknown origin, with read to 0x000000007fffc288 of 8 bytes by task 412 on cpu 3:
>[   98.001546]  arch_vcpu_is_preempted+0x4a/0xe0
>[   98.001569]  osq_lock+0x17c/0x330
>[   98.001594]  __mutex_lock.constprop.0+0x428/0xfc8
>[   98.001622]  __mutex_lock_slowpath+0x38/0x50
>[   98.001648]  mutex_lock+0xb4/0xc8
>[   98.001673]  btrfs_delayed_update_inode+0x68/0x368 [btrfs]
>[   98.002664]  btrfs_update_inode+0x108/0x1c8 [btrfs]
>[   98.003465]  btrfs_update_inode_fallback+0x3c/0x80 [btrfs]
>[   98.004279]  btrfs_finish_one_ordered+0xbe0/0x11a0 [btrfs]
>[   98.005086]  btrfs_finish_ordered_io+0xc0/0xe8 [btrfs]
>[   98.005894]  finish_ordered_fn+0x36/0x48 [btrfs]
>[   98.006715]  btrfs_work_helper+0x160/0x7a0 [btrfs]
>[   98.007535]  process_one_work+0x3b6/0x838
>[   98.007557]  worker_thread+0x75e/0xb10
>[   98.007577]  kthread+0x21a/0x230
>[   98.007599]  __ret_from_fork+0x6c/0xb8
>[   98.007639]  ret_from_fork+0xa/0x30
>
>[   98.007679] value changed: 0x000000000000000c -> 0x0000000000000028
>
>[   98.007715] Reported by Kernel Concurrency Sanitizer on:
>[   98.007735] CPU: 3 PID: 412 Comm: kworker/u132:2 Kdump: loaded Not tainted 6.7.4-1.g9e758e0-default #1 openSUSE Tumbleweed (unreleased) b54db25b5c91e1f741a77b8c006738e22884ded0
>[   98.007780] Hardware name: IBM 8561 LT1 400 (z/VM 7.3.0)
>[   98.007805] Workqueue: btrfs-endio-write btrfs_work_helper [btrfs]
>[   98.008623] ==================================================================
>[   99.816861] ==================================================================
>[   99.816908] BUG: KCSAN: data-race in rcu_all_qs / rcu_implicit_dynticks_qs
>
>[   99.816954] write (marked) to 0x0000000170cb1c15 of 1 bytes by task 16 on cpu 1:
>[   99.816979]  rcu_implicit_dynticks_qs+0x22a/0xab8
>[   99.817006]  force_qs_rnp+0x308/0x6d8
>[   99.817031]  rcu_gp_fqs_loop+0x76c/0xa70
>[   99.817056]  rcu_gp_kthread+0x2ee/0x3d8
>[   99.817084]  kthread+0x21a/0x230
>[   99.817114]  __ret_from_fork+0x6c/0xb8
>[   99.817142]  ret_from_fork+0xa/0x30
>
>[   99.817194] read to 0x0000000170cb1c15 of 1 bytes by task 4470 on cpu 3:
>[   99.817225]  rcu_all_qs+0x4e/0x1b0
>[   99.817256]  __cond_resched+0x2c/0x78
>[   99.817286]  btrfs_page_start_writer_lock+0x56/0x2a0 [btrfs]
>[   99.818304]  lock_delalloc_pages+0x16c/0x390 [btrfs]
>[   99.819111]  find_lock_delalloc_range+0x322/0x500 [btrfs]
>[   99.819934]  writepage_delalloc+0xd8/0x1d8 [btrfs]
>[   99.820752]  extent_write_cache_pages+0x4b6/0xd50 [btrfs]
>[   99.821557]  extent_writepages+0xd4/0x1a8 [btrfs]
>[   99.822355]  btrfs_writepages+0x3c/0x58 [btrfs]
>[   99.823143]  do_writepages+0xa8/0x2d8
>[   99.823169]  filemap_fdatawrite_wbc+0xe6/0x130
>[   99.823196]  __filemap_fdatawrite_range+0xa6/0xc0
>[   99.823224]  filemap_flush+0x48/0x68
>[   99.823249]  btrfs_defrag_file+0x1bd6/0x1e58 [btrfs]
>[   99.824047]  btrfs_ioctl_defrag+0x1fc/0x288 [btrfs]
>[   99.824847]  btrfs_ioctl+0xffc/0x31a0 [btrfs]
>[   99.825643]  __s390x_sys_ioctl+0x108/0x150
>[   99.825674]  do_syscall+0x1c6/0x210
>[   99.825705]  __do_syscall+0xc8/0xf0
>[   99.825734]  system_call+0x70/0x98
>
>[   99.825785] Reported by Kernel Concurrency Sanitizer on:
>[   99.825813] CPU: 3 PID: 4470 Comm: btrfs Kdump: loaded Not tainted 6.7.4-1.g9e758e0-default #1 openSUSE Tumbleweed (unreleased) b54db25b5c91e1f741a77b8c006738e22884ded0
>[   99.825866] Hardware name: IBM 8561 LT1 400 (z/VM 7.3.0)
>[   99.825881] ==================================================================
>[  101.326857] ==================================================================
>[  101.326903] BUG: KCSAN: data-race in __hrtimer_run_queues / hrtimer_active
>
>[  101.326947] read to 0x0000000170c43f18 of 8 bytes by interrupt on cpu 1:
>[  101.326978]  hrtimer_active+0x90/0x110
>[  101.327006]  task_tick_fair+0x52/0x3f0
>[  101.327035]  scheduler_tick+0xe6/0x460
>[  101.327062]  update_process_times+0x104/0x120
>[  101.327088]  tick_sched_handle+0x8e/0xd8
>[  101.327122]  tick_nohz_highres_handler+0x82/0x108
>[  101.327157]  __hrtimer_run_queues+0x2d2/0x4d8
>[  101.327191]  hrtimer_interrupt+0x26a/0x528
>[  101.327226]  clock_comparator_work+0x74/0x90
>[  101.327261]  do_IRQ+0x8a/0xa8
>[  101.327295]  do_irq_async+0x7e/0x108
>[  101.327332]  do_ext_irq+0xd2/0x120
>[  101.327371]  ext_int_handler+0xc4/0xf0
>[  101.327409]  __mod_lruvec_state+0x3c/0x80
>[  101.327446]  __mod_lruvec_page_state+0x132/0x230
>[  101.327534]  page_remove_rmap+0x1f6/0x428
>[  101.327561]  unmap_page_range+0x892/0x1840
>[  101.327587]  unmap_single_vma.isra.0+0xd0/0x140
>[  101.327611]  unmap_vmas+0x152/0x2c8
>[  101.327634]  exit_mmap+0x106/0x580
>[  101.327654]  __mmput+0x9e/0x228
>[  101.327676]  mmput+0x7e/0x90
>[  101.327696]  do_exit+0x596/0x1390
>[  101.327722]  do_group_exit+0x7a/0x140
>[  101.327748]  __s390x_sys_exit_group+0x46/0x48
>[  101.327776]  do_syscall+0x1c6/0x210
>[  101.327802]  __do_syscall+0xc8/0xf0
>[  101.327830]  system_call+0x70/0x98
>
>[  101.327878] write to 0x0000000170c43f18 of 8 bytes by interrupt on cpu 0:
>[  101.327907]  __hrtimer_run_queues+0x1b2/0x4d8
>[  101.327938]  hrtimer_interrupt+0x26a/0x528
>[  101.327968]  clock_comparator_work+0x74/0x90
>[  101.328000]  do_IRQ+0x8a/0xa8
>[  101.328032]  do_irq_async+0x7e/0x108
>[  101.328066]  do_ext_irq+0x96/0x120
>[  101.328111]  ext_int_handler+0xc4/0xf0
>[  101.328133]  psw_idle_exit+0x0/0xa
>[  101.328154]  arch_cpu_idle+0x36/0x48
>[  101.328176]  default_idle_call+0x3c/0x108
>[  101.328199]  do_idle+0xda/0x170
>[  101.328220]  cpu_startup_entry+0x40/0x48
>[  101.328242]  rest_init+0x132/0x148
>[  101.328267]  arch_call_rest_init+0x2c/0x30
>[  101.328291]  start_kernel+0x980/0xde8
>[  101.328314]  startup_continue+0x36/0x40
>
>[  101.328355] Reported by Kernel Concurrency Sanitizer on:
>[  101.328378] CPU: 0 PID: 0 Comm: swapper/0 Kdump: loaded Not tainted 6.7.4-1.g9e758e0-default #1 openSUSE Tumbleweed (unreleased) b54db25b5c91e1f741a77b8c006738e22884ded0
>[  101.328423] Hardware name: IBM 8561 LT1 400 (z/VM 7.3.0)
>[  101.328451] ==================================================================
>[  101.386840] ==================================================================
>[  101.386881] BUG: KCSAN: data-race in rcu_all_qs / rcu_report_qs_rdp
>
>[  101.386930] write (marked) to 0x0000000170c92c15 of 1 bytes by interrupt on cpu 2:
>[  101.386959]  rcu_report_qs_rdp+0x144/0x228
>[  101.386988]  rcu_core+0x860/0xe00
>[  101.387016]  rcu_core_si+0x30/0x48
>[  101.387044]  __do_softirq+0x14c/0x410
>[  101.387074]  irq_exit_rcu+0xae/0xc8
>[  101.387101]  do_ext_irq+0xd8/0x120
>[  101.387131]  ext_int_handler+0xc4/0xf0
>[  101.387162]  delay_loop+0x6a/0xd0
>[  101.387192]  delay_loop+0xa0/0xd0
>[  101.387224]  __udelay+0x36/0x48
>[  101.387255]  kcsan_setup_watchpoint+0x21a/0x568
>[  101.387295]  rcu_all_qs+0x4e/0x1b0
>[  101.387313]  __cond_resched+0x2c/0x78
>[  101.387330]  mutex_lock+0x30/0xc8
>[  101.387346]  perf_event_exit_task+0x44/0x408
>[  101.387366]  do_exit+0x638/0x1390
>[  101.387383]  do_group_exit+0x7a/0x140
>[  101.387401]  __s390x_sys_exit_group+0x46/0x48
>[  101.387419]  do_syscall+0x1c6/0x210
>[  101.387436]  __do_syscall+0xc8/0xf0
>[  101.387453]  system_call+0x70/0x98
>
>[  101.387479] read to 0x0000000170c92c15 of 1 bytes by task 4570 on cpu 2:
>[  101.387496]  rcu_all_qs+0x4e/0x1b0
>[  101.387515]  __cond_resched+0x2c/0x78
>[  101.387531]  mutex_lock+0x30/0xc8
>[  101.387548]  perf_event_exit_task+0x44/0x408
>[  101.387568]  do_exit+0x638/0x1390
>[  101.387585]  do_group_exit+0x7a/0x140
>[  101.387603]  __s390x_sys_exit_group+0x46/0x48
>[  101.387622]  do_syscall+0x1c6/0x210
>[  101.387639]  __do_syscall+0xc8/0xf0
>[  101.387656]  system_call+0x70/0x98
>
>[  101.387681] Reported by Kernel Concurrency Sanitizer on:
>[  101.387696] CPU: 2 PID: 4570 Comm: sed Kdump: loaded Not tainted 6.7.4-1.g9e758e0-default #1 openSUSE Tumbleweed (unreleased) b54db25b5c91e1f741a77b8c006738e22884ded0
>[  101.387728] Hardware name: IBM 8561 LT1 400 (z/VM 7.3.0)
>[  101.387743] ==================================================================
>[  103.041312] ==================================================================
>[  103.041350] BUG: KCSAN: data-race in arch_vcpu_is_preempted+0x4a/0xe0
>
>[  103.041394] race at unknown origin, with read to 0x000000007fffc288 of 8 bytes by task 1655 on cpu 2:
>[  103.041425]  arch_vcpu_is_preempted+0x4a/0xe0
>[  103.041453]  mutex_spin_on_owner+0xb4/0x170
>[  103.041484]  __mutex_lock.constprop.0+0x760/0xfc8
>[  103.041517]  __mutex_lock_killable_slowpath+0x38/0x58
>[  103.041549]  mutex_lock_killable+0xbc/0xd8
>[  103.041580]  pcpu_alloc+0x912/0xf58
>[  103.041607]  __alloc_percpu+0x44/0x60
>[  103.041634]  mm_init+0x4f6/0x8a8
>[  103.041661]  copy_process+0x1a60/0x3130
>[  103.041691]  kernel_clone+0xc8/0x568
>[  103.041720]  __do_sys_clone+0xcc/0xe8
>[  103.041749]  __s390x_sys_clone+0x90/0xb0
>[  103.041780]  do_syscall+0x1c6/0x210
>[  103.041814]  __do_syscall+0xc8/0xf0
>[  103.041862]  system_call+0x70/0x98
>
>[  103.041894] value changed: 0x0000000000000004 -> 0x000000000000000c
>
>[  103.041923] Reported by Kernel Concurrency Sanitizer on:
>[  103.041940] CPU: 2 PID: 1655 Comm: dracut Kdump: loaded Not tainted 6.7.4-1.g9e758e0-default #1 openSUSE Tumbleweed (unreleased) b54db25b5c91e1f741a77b8c006738e22884ded0
>[  103.041976] Hardware name: IBM 8561 LT1 400 (z/VM 7.3.0)
>[  103.041992] ==================================================================
>[  104.430197] ==================================================================
>[  104.430242] BUG: KCSAN: data-race in rcu_all_qs / rcu_report_qs_rdp
>
>[  104.430285] write (marked) to 0x0000000170c54c15 of 1 bytes by interrupt on cpu 0:
>[  104.430310]  rcu_report_qs_rdp+0x144/0x228
>[  104.430334]  rcu_core+0x860/0xe00
>[  104.430358]  rcu_core_si+0x30/0x48
>[  104.430382]  __do_softirq+0x14c/0x410
>[  104.430409]  irq_exit_rcu+0xae/0xc8
>[  104.430433]  do_ext_irq+0xd8/0x120
>[  104.430458]  ext_int_handler+0xc4/0xf0
>[  104.430486]  delay_loop+0x6a/0xd0
>[  104.430513]  delay_loop+0xa0/0xd0
>[  104.430540]  __udelay+0x36/0x48
>[  104.430568]  kcsan_setup_watchpoint+0x21a/0x568
>[  104.430598]  delay_loop+0x90/0xd0
>[  104.430628]  __udelay+0x36/0x48
>[  104.430658]  kcsan_setup_watchpoint+0x21a/0x568
>[  104.430690]  delay_loop+0x90/0xd0
>[  104.430721]  __udelay+0x36/0x48
>[  104.430827]  kcsan_setup_watchpoint+0x21a/0x568
>[  104.430855]  delay_loop+0x90/0xd0
>[  104.430875]  __udelay+0x36/0x48
>[  104.430895]  kcsan_setup_watchpoint+0x21a/0x568
>[  104.430916]  rcu_all_qs+0x4e/0x1b0
>[  104.430937]  __cond_resched+0x2c/0x78
>[  104.430958]  __alloc_pages+0x1d8/0x330
>[  104.430979]  alloc_pages_mpol+0x17c/0x380
>[  104.431003]  vma_alloc_folio+0x7e/0x110
>[  104.431027]  do_wp_page+0x7c4/0x1b90
>[  104.431052]  __handle_mm_fault+0x10c0/0x23b0
>[  104.431078]  handle_mm_fault+0x278/0x458
>[  104.431105]  do_exception+0x216/0x930
>[  104.431132]  do_protection_exception+0xca/0x178
>[  104.431161]  __do_pgm_check+0xf4/0x188
>[  104.431195]  pgm_check_handler+0x116/0x168
>
>[  104.431253] read to 0x0000000170c54c15 of 1 bytes by task 4860 on cpu 0:
>[  104.431286]  rcu_all_qs+0x4e/0x1b0
>[  104.431322]  __cond_resched+0x2c/0x78
>[  104.431376]  __alloc_pages+0x1d8/0x330
>[  104.431401]  alloc_pages_mpol+0x17c/0x380
>[  104.431423]  vma_alloc_folio+0x7e/0x110
>[  104.431446]  do_wp_page+0x7c4/0x1b90
>[  104.431467]  __handle_mm_fault+0x10c0/0x23b0
>[  104.431489]  handle_mm_fault+0x278/0x458
>[  104.431513]  do_exception+0x216/0x930
>[  104.431536]  do_protection_exception+0xca/0x178
>[  104.431561]  __do_pgm_check+0xf4/0x188
>[  104.431587]  pgm_check_handler+0x116/0x168
>
>[  104.431630] Reported by Kernel Concurrency Sanitizer on:
>[  104.431654] CPU: 0 PID: 4860 Comm: grep Kdump: loaded Not tainted 6.7.4-1.g9e758e0-default #1 openSUSE Tumbleweed (unreleased) b54db25b5c91e1f741a77b8c006738e22884ded0
>[  104.431699] Hardware name: IBM 8561 LT1 400 (z/VM 7.3.0)
>[  104.431728] ==================================================================
>[  106.636829] ==================================================================
>[  106.636873] BUG: KCSAN: data-race in __hrtimer_run_queues / hrtimer_active
>
>[  106.636916] read to 0x0000000170c43f18 of 8 bytes by interrupt on cpu 1:
>[  106.636941]  hrtimer_active+0x90/0x110
>[  106.636965]  task_tick_fair+0x52/0x3f0
>[  106.636993]  scheduler_tick+0xe6/0x460
>[  106.637021]  update_process_times+0x104/0x120
>[  106.637047]  tick_sched_handle+0x8e/0xd8
>[  106.637077]  tick_nohz_highres_handler+0x82/0x108
>[  106.637108]  __hrtimer_run_queues+0x2d2/0x4d8
>[  106.637137]  hrtimer_interrupt+0x26a/0x528
>[  106.637167]  clock_comparator_work+0x74/0x90
>[  106.637199]  do_IRQ+0x8a/0xa8
>[  106.637230]  do_irq_async+0x7e/0x108
>[  106.637264]  do_ext_irq+0xd2/0x120
>[  106.637298]  ext_int_handler+0xc4/0xf0
>[  106.637333]  __kcsan_check_access+0x4c/0x1a0
>[  106.637368]  dup_fd+0x3d2/0x700
>[  106.637457]  copy_process+0xf1e/0x3130
>[  106.637482]  kernel_clone+0xc8/0x568
>[  106.637501]  __do_sys_clone+0xcc/0xe8
>[  106.637521]  __s390x_sys_clone+0x90/0xb0
>[  106.637542]  do_syscall+0x1c6/0x210
>[  106.637564]  __do_syscall+0xc8/0xf0
>[  106.637588]  system_call+0x70/0x98
>
>[  106.637628] write to 0x0000000170c43f18 of 8 bytes by interrupt on cpu 0:
>[  106.637655]  __hrtimer_run_queues+0x214/0x4d8
>[  106.637682]  hrtimer_interrupt+0x26a/0x528
>[  106.637709]  clock_comparator_work+0x74/0x90
>[  106.637738]  do_IRQ+0x8a/0xa8
>[  106.637766]  do_irq_async+0x7e/0x108
>[  106.637796]  do_ext_irq+0xd2/0x120
>[  106.637825]  ext_int_handler+0xc4/0xf0
>[  106.637857]  __tsan_read8+0x148/0x1a0
>[  106.637887]  unmap_page_range+0x742/0x1840
>[  106.637923]  unmap_single_vma.isra.0+0xd0/0x140
>[  106.637959]  unmap_vmas+0x152/0x2c8
>[  106.637994]  exit_mmap+0x106/0x580
>[  106.638035]  __mmput+0x9e/0x228
>[  106.638052]  mmput+0x7e/0x90
>[  106.638069]  begin_new_exec+0xb6e/0x1878
>[  106.638091]  load_elf_binary+0x82c/0x2638
>[  106.638115]  bprm_execve+0x50c/0xb50
>[  106.638138]  do_execveat_common.isra.0+0x328/0x3d8
>[  106.638164]  __s390x_sys_execve+0x8a/0xa8
>[  106.638189]  do_syscall+0x1c6/0x210
>[  106.638213]  __do_syscall+0xc8/0xf0
>[  106.638239]  system_call+0x70/0x98
>
>[  106.638283] Reported by Kernel Concurrency Sanitizer on:
>[  106.638307] CPU: 0 PID: 5123 Comm: grub Kdump: loaded Not tainted 6.7.4-1.g9e758e0-default #1 openSUSE Tumbleweed (unreleased) b54db25b5c91e1f741a77b8c006738e22884ded0
>[  106.638352] Hardware name: IBM 8561 LT1 400 (z/VM 7.3.0)
>[  106.638379] ==================================================================
>[  108.896830] ==================================================================
>[  108.896878] BUG: KCSAN: data-race in __hrtimer_run_queues / hrtimer_active
>
>[  108.896924] read to 0x0000000170c43f18 of 8 bytes by interrupt on cpu 2:
>[  108.896951]  hrtimer_active+0x90/0x110
>[  108.896977]  task_tick_fair+0x52/0x3f0
>[  108.897008]  scheduler_tick+0xe6/0x460
>[  108.897037]  update_process_times+0x104/0x120
>[  108.897066]  tick_sched_handle+0x8e/0xd8
>[  108.897098]  tick_nohz_highres_handler+0x82/0x108
>[  108.897130]  __hrtimer_run_queues+0x2d2/0x4d8
>[  108.897162]  hrtimer_interrupt+0x26a/0x528
>[  108.897194]  clock_comparator_work+0x74/0x90
>[  108.897229]  do_IRQ+0x8a/0xa8
>[  108.897264]  do_irq_async+0x7e/0x108
>[  108.897300]  do_ext_irq+0xd2/0x120
>[  108.897338]  ext_int_handler+0xc4/0xf0
>[  108.897377]  percpu_counter_add_batch+0xb6/0x170
>[  108.897416]  percpu_counter_add_batch+0x9e/0x170
>[  108.897521]  set_pte_range+0x1bc/0x5c0
>[  108.897552]  filemap_map_pages+0x5f6/0x910
>[  108.897581]  __handle_mm_fault+0x14cc/0x23b0
>[  108.897607]  handle_mm_fault+0x278/0x458
>[  108.897632]  do_exception+0x216/0x930
>[  108.897659]  do_dat_exception+0x38/0x50
>[  108.897687]  __do_pgm_check+0xf4/0x188
>[  108.897716]  pgm_check_handler+0x116/0x168
>
>[  108.897766] write to 0x0000000170c43f18 of 8 bytes by interrupt on cpu 0:
>[  108.897797]  __hrtimer_run_queues+0x1b2/0x4d8
>[  108.897829]  hrtimer_interrupt+0x26a/0x528
>[  108.897862]  clock_comparator_work+0x74/0x90
>[  108.897895]  do_IRQ+0x8a/0xa8
>[  108.897930]  do_irq_async+0x7e/0x108
>[  108.897966]  do_ext_irq+0xd2/0x120
>[  108.898002]  ext_int_handler+0xc4/0xf0
>[  108.898039]  __tsan_read_range+0x6/0x1a8
>[  108.898077]  delay_loop+0x7c/0xd0
>[  108.898114]  __udelay+0x36/0x48
>[  108.898151]  kcsan_setup_watchpoint+0x21a/0x568
>[  108.898221]  delay_loop+0x7c/0xd0
>[  108.898250]  __udelay+0x36/0x48
>[  108.898274]  kcsan_setup_watchpoint+0x21a/0x568
>[  108.898300]  seq_read_iter+0x2d0/0x960
>[  108.898325]  seq_read+0x116/0x150
>[  108.898350]  proc_reg_read+0x12c/0x198
>[  108.898378]  vfs_read+0xc6/0x498
>[  108.898402]  ksys_read+0xa2/0x150
>[  108.898426]  __s390x_sys_read+0x68/0x88
>[  108.898452]  do_syscall+0x1c6/0x210
>[  108.898481]  __do_syscall+0xc8/0xf0
>[  108.898511]  system_call+0x70/0x98
>
>[  108.898562] Reported by Kernel Concurrency Sanitizer on:
>[  108.898590] CPU: 0 PID: 5375 Comm: chzdev Kdump: loaded Not tainted 6.7.4-1.g9e758e0-default #1 openSUSE Tumbleweed (unreleased) b54db25b5c91e1f741a77b8c006738e22884ded0
>[  108.898640] Hardware name: IBM 8561 LT1 400 (z/VM 7.3.0)
>[  108.898672] ==================================================================
>[  109.893500] ==================================================================
>[  109.893544] BUG: KCSAN: data-race in rcu_all_qs / rcu_report_qs_rdp
>
>[  109.893586] write (marked) to 0x0000000170c54c15 of 1 bytes by interrupt on cpu 0:
>[  109.893609]  rcu_report_qs_rdp+0x144/0x228
>[  109.893633]  rcu_core+0x860/0xe00
>[  109.893657]  rcu_core_si+0x30/0x48
>[  109.893681]  __do_softirq+0x14c/0x410
>[  109.893708]  irq_exit_rcu+0xae/0xc8
>[  109.893732]  do_ext_irq+0xd8/0x120
>[  109.893758]  ext_int_handler+0xc4/0xf0
>[  109.893785]  __tsan_read_range+0x162/0x1a8
>[  109.893813]  delay_loop+0x90/0xd0
>[  109.893840]  __udelay+0x36/0x48
>[  109.893867]  kcsan_setup_watchpoint+0x21a/0x568
>[  109.893896]  rcu_all_qs+0x4e/0x1b0
>[  109.893926]  __cond_resched+0x2c/0x78
>[  109.893956]  down_read+0x30/0x1a0
>[  109.893986]  kernfs_iop_permission+0x7a/0xc8
>[  109.894019]  inode_permission+0x1a0/0x2d0
>[  109.894110]  link_path_walk.part.0.constprop.0+0x494/0x678
>[  109.894138]  path_openat+0x148/0x1c88
>[  109.894157]  do_filp_open+0x13c/0x228
>[  109.894177]  do_sys_openat2+0xd4/0x110
>[  109.894199]  do_sys_open+0x7a/0xc0
>[  109.894221]  __s390x_sys_openat+0x80/0xa0
>[  109.894243]  do_syscall+0x1c6/0x210
>[  109.894266]  __do_syscall+0xc8/0xf0
>[  109.894290]  system_call+0x70/0x98
>
>[  109.894331] read to 0x0000000170c54c15 of 1 bytes by task 5473 on cpu 0:
>[  109.894356]  rcu_all_qs+0x4e/0x1b0
>[  109.894383]  __cond_resched+0x2c/0x78
>[  109.894408]  down_read+0x30/0x1a0
>[  109.894434]  kernfs_iop_permission+0x7a/0xc8
>[  109.894463]  inode_permission+0x1a0/0x2d0
>[  109.894492]  link_path_walk.part.0.constprop.0+0x494/0x678
>[  109.894525]  path_openat+0x148/0x1c88
>[  109.894555]  do_filp_open+0x13c/0x228
>[  109.894586]  do_sys_openat2+0xd4/0x110
>[  109.894627]  do_sys_open+0x7a/0xc0
>[  109.894646]  __s390x_sys_openat+0x80/0xa0
>[  109.894666]  do_syscall+0x1c6/0x210
>[  109.894685]  __do_syscall+0xc8/0xf0
>[  109.894705]  system_call+0x70/0x98
>
>[  109.894738] Reported by Kernel Concurrency Sanitizer on:
>[  109.894757] CPU: 0 PID: 5473 Comm: chzdev Kdump: loaded Not tainted 6.7.4-1.g9e758e0-default #1 openSUSE Tumbleweed (unreleased) b54db25b5c91e1f741a77b8c006738e22884ded0
>[  109.894796] Hardware name: IBM 8561 LT1 400 (z/VM 7.3.0)
>[  109.894818] ==================================================================
>[  110.497390] ==================================================================
>[  110.497428] BUG: KCSAN: data-race in arch_vcpu_is_preempted+0x4a/0xe0
>
>[  110.497469] race at unknown origin, with read to 0x0000000000426288 of 8 bytes by task 5528 on cpu 2:
>[  110.497499]  arch_vcpu_is_preempted+0x4a/0xe0
>[  110.497526]  rwsem_spin_on_owner+0x84/0x178
>[  110.497557]  rwsem_down_write_slowpath+0xfc/0xd60
>[  110.497589]  down_write+0xd8/0xf0
>[  110.497616]  unlink_file_vma+0x5c/0xc0
>[  110.497647]  free_pgtables+0x27c/0x308
>[  110.497674]  exit_mmap+0x1fa/0x580
>[  110.497703]  __mmput+0x9e/0x228
>[  110.497733]  mmput+0x7e/0x90
>[  110.497764]  do_exit+0x596/0x1390
>[  110.497795]  do_group_exit+0x7a/0x140
>[  110.497829]  __s390x_sys_exit_group+0x46/0x48
>[  110.497864]  do_syscall+0x1c6/0x210
>[  110.497899]  __do_syscall+0xc8/0xf0
>[  110.497935]  system_call+0x70/0x98
>
>[  110.498005] value changed: 0x0000000000000004 -> 0x000000000000000c
>
>[  110.498033] Reported by Kernel Concurrency Sanitizer on:
>[  110.498049] CPU: 2 PID: 5528 Comm: dracut Kdump: loaded Not tainted 6.7.4-1.g9e758e0-default #1 openSUSE Tumbleweed (unreleased) b54db25b5c91e1f741a77b8c006738e22884ded0
>[  110.498095] Hardware name: IBM 8561 LT1 400 (z/VM 7.3.0)
>[  110.498119] ==================================================================
>[  112.316841] ==================================================================
>[  112.316887] BUG: KCSAN: data-race in __hrtimer_run_queues / hrtimer_active
>
>[  112.316927] read to 0x0000000170c43f18 of 8 bytes by interrupt on cpu 2:
>[  112.316951]  hrtimer_active+0x90/0x110
>[  112.316974]  task_tick_fair+0x52/0x3f0
>[  112.317002]  scheduler_tick+0xe6/0x460
>[  112.317028]  update_process_times+0x104/0x120
>[  112.317053]  tick_sched_handle+0x8e/0xd8
>[  112.317082]  tick_nohz_highres_handler+0x82/0x108
>[  112.317112]  __hrtimer_run_queues+0x2d2/0x4d8
>[  112.317140]  hrtimer_interrupt+0x26a/0x528
>[  112.317169]  clock_comparator_work+0x74/0x90
>[  112.317199]  do_IRQ+0x8a/0xa8
>[  112.317231]  do_irq_async+0x7e/0x108
>[  112.317265]  do_ext_irq+0xd2/0x120
>[  112.317299]  ext_int_handler+0xc4/0xf0
>[  112.317335]  __tsan_read8+0x4e/0x1a0
>[  112.317368]  delay_loop+0xa0/0xd0
>[  112.317455]  __udelay+0x36/0x48
>[  112.317477]  kcsan_setup_watchpoint+0x21a/0x568
>[  112.317498]  delay_loop+0x7c/0xd0
>[  112.317518]  __udelay+0x36/0x48
>[  112.317538]  kcsan_setup_watchpoint+0x21a/0x568
>[  112.317561]  delay_loop+0x90/0xd0
>[  112.317583]  __udelay+0x36/0x48
>[  112.317606]  kcsan_setup_watchpoint+0x21a/0x568
>[  112.317630]  delay_loop+0x7c/0xd0
>[  112.317655]  __udelay+0x36/0x48
>[  112.317680]  kcsan_setup_watchpoint+0x21a/0x568
>[  112.317707]  delay_loop+0x7c/0xd0
>[  112.317733]  __udelay+0x36/0x48
>[  112.317760]  kcsan_setup_watchpoint+0x21a/0x568
>[  112.317790]  btrfs_get_token_32+0x25c/0x3a8 [btrfs]
>[  112.318884]  setup_items_for_insert.isra.0+0x45c/0x7a0 [btrfs]
>[  112.319750]  btrfs_insert_empty_items+0xd6/0x108 [btrfs]
>[  112.320619]  __btrfs_run_delayed_refs+0x1054/0x2390 [btrfs]
>[  112.321490]  btrfs_run_delayed_refs+0xae/0x290 [btrfs]
>[  112.322372]  btrfs_commit_transaction+0x122/0x1b30 [btrfs]
>[  112.323234]  btrfs_mksubvol+0x55c/0x878 [btrfs]
>[  112.324115]  btrfs_mksnapshot+0xe6/0x128 [btrfs]
>[  112.324982]  __btrfs_ioctl_snap_create+0x292/0x298 [btrfs]
>[  112.325847]  btrfs_ioctl_snap_create_v2+0x154/0x238 [btrfs]
>[  112.326716]  btrfs_ioctl+0x1ab0/0x31a0 [btrfs]
>[  112.327592]  __s390x_sys_ioctl+0x108/0x150
>[  112.327621]  do_syscall+0x1c6/0x210
>[  112.327648]  __do_syscall+0xc8/0xf0
>[  112.327676]  system_call+0x70/0x98
>
>[  112.327724] write to 0x0000000170c43f18 of 8 bytes by interrupt on cpu 0:
>[  112.327753]  __hrtimer_run_queues+0x214/0x4d8
>[  112.327782]  hrtimer_interrupt+0x26a/0x528
>[  112.327813]  clock_comparator_work+0x74/0x90
>[  112.327844]  do_IRQ+0x8a/0xa8
>[  112.327876]  do_irq_async+0x7e/0x108
>[  112.327910]  do_ext_irq+0xd2/0x120
>[  112.327943]  ext_int_handler+0xc4/0xf0
>[  112.327987]  mas_wr_node_store+0x2a8/0xbe0
>[  112.328009]  mas_wr_store_entry.isra.0+0x244/0x568
>[  112.328031]  mas_store_prealloc+0x58/0x160
>[  112.328054]  vma_complete+0x5f8/0x688
>[  112.328078]  __split_vma+0x49e/0x568
>[  112.328101]  do_vmi_align_munmap+0x18e/0x878
>[  112.328127]  do_vmi_munmap+0x11a/0x1b0
>[  112.328153]  __vm_munmap+0x106/0x1c8
>[  112.328175]  vm_munmap+0x40/0x60
>[  112.328197]  elf_load+0x2ea/0x378
>[  112.328224]  load_elf_binary+0x151e/0x2638
>[  112.328252]  bprm_execve+0x50c/0xb50
>[  112.328282]  do_execveat_common.isra.0+0x328/0x3d8
>[  112.328314]  __s390x_sys_execve+0x8a/0xa8
>[  112.328346]  do_syscall+0x1c6/0x210
>[  112.328376]  __do_syscall+0xc8/0xf0
>[  112.328407]  system_call+0x70/0x98
>
>[  112.328461] Reported by Kernel Concurrency Sanitizer on:
>[  112.328492] CPU: 0 PID: 5716 Comm: dracut-install Kdump: loaded Not tainted 6.7.4-1.g9e758e0-default #1 openSUSE Tumbleweed (unreleased) b54db25b5c91e1f741a77b8c006738e22884ded0
>[  112.328551] Hardware name: IBM 8561 LT1 400 (z/VM 7.3.0)
>[  112.328568] ==================================================================
>[  113.950161] ==================================================================
>[  113.950206] BUG: KCSAN: data-race in rcu_all_qs / rcu_report_qs_rdp
>
>[  113.950249] write (marked) to 0x0000000170c54c15 of 1 bytes by interrupt on cpu 0:
>[  113.950274]  rcu_report_qs_rdp+0x144/0x228
>[  113.950300]  rcu_core+0x860/0xe00
>[  113.950323]  rcu_core_si+0x30/0x48
>[  113.950348]  __do_softirq+0x14c/0x410
>[  113.950377]  irq_exit_rcu+0xae/0xc8
>[  113.950401]  do_ext_irq+0xd8/0x120
>[  113.950427]  ext_int_handler+0xc4/0xf0
>[  113.950454]  __tsan_read_range+0x168/0x1a8
>[  113.950481]  delay_loop+0x90/0xd0
>[  113.950509]  __udelay+0x36/0x48
>[  113.950537]  kcsan_setup_watchpoint+0x21a/0x568
>[  113.950568]  delay_loop+0x90/0xd0
>[  113.950598]  __udelay+0x36/0x48
>[  113.950627]  kcsan_setup_watchpoint+0x21a/0x568
>[  113.950659]  rcu_all_qs+0x4e/0x1b0
>[  113.950692]  __cond_resched+0x2c/0x78
>[  113.950791]  count.constprop.0.isra.0+0xce/0x130
>[  113.950820]  do_execveat_common.isra.0+0x18c/0x3d8
>[  113.950844]  __s390x_sys_execve+0x8a/0xa8
>[  113.950866]  do_syscall+0x1c6/0x210
>[  113.950888]  __do_syscall+0xc8/0xf0
>[  113.950910]  system_call+0x70/0x98
>
>[  113.950948] read to 0x0000000170c54c15 of 1 bytes by task 5906 on cpu 0:
>[  113.950972]  rcu_all_qs+0x4e/0x1b0
>[  113.950997]  __cond_resched+0x2c/0x78
>[  113.951022]  count.constprop.0.isra.0+0xce/0x130
>[  113.951051]  do_execveat_common.isra.0+0x18c/0x3d8
>[  113.951080]  __s390x_sys_execve+0x8a/0xa8
>[  113.951109]  do_syscall+0x1c6/0x210
>[  113.951136]  __do_syscall+0xc8/0xf0
>[  113.951166]  system_call+0x70/0x98
>
>[  113.951215] Reported by Kernel Concurrency Sanitizer on:
>[  113.951242] CPU: 0 PID: 5906 Comm: dracut Kdump: loaded Not tainted 6.7.4-1.g9e758e0-default #1 openSUSE Tumbleweed (unreleased) b54db25b5c91e1f741a77b8c006738e22884ded0
>[  113.951301] Hardware name: IBM 8561 LT1 400 (z/VM 7.3.0)
>[  113.951316] ==================================================================
>[  117.192690] ==================================================================
>[  117.193526] BUG: KCSAN: data-race in btrfs_block_rsv_release [btrfs] / need_preemptive_reclaim [btrfs]
>
>[  117.195148] read to 0x000000017f587190 of 8 bytes by task 6303 on cpu 3:
>[  117.195172]  need_preemptive_reclaim+0x222/0x2f0 [btrfs]
>[  117.195992]  __reserve_bytes+0xbb0/0xdc8 [btrfs]
>[  117.196807]  btrfs_reserve_metadata_bytes+0x4c/0x120 [btrfs]
>[  117.197620]  btrfs_block_rsv_add+0x78/0xa8 [btrfs]
>[  117.198434]  btrfs_delayed_update_inode+0x154/0x368 [btrfs]
>[  117.199300]  btrfs_update_inode+0x108/0x1c8 [btrfs]
>[  117.200122]  btrfs_dirty_inode+0xb4/0x140 [btrfs]
>[  117.200937]  btrfs_update_time+0x8c/0xb0 [btrfs]
>[  117.201754]  touch_atime+0x16c/0x1e0
>[  117.201789]  filemap_read+0x674/0x728
>[  117.201823]  btrfs_file_read_iter+0xf8/0x410 [btrfs]
>[  117.202653]  vfs_read+0x2b6/0x498
>[  117.203454]  ksys_read+0xa2/0x150
>[  117.203473]  __s390x_sys_read+0x68/0x88
>[  117.203495]  do_syscall+0x1c6/0x210
>[  117.203517]  __do_syscall+0xc8/0xf0
>[  117.203539]  system_call+0x70/0x98
>
>[  117.203579] write to 0x000000017f587190 of 8 bytes by task 11 on cpu 0:
>[  117.203604]  btrfs_block_rsv_release+0x2e8/0x578 [btrfs]
>[  117.204432]  btrfs_delayed_inode_release_metadata+0x7c/0x1d0 [btrfs]
>[  117.205259]  __btrfs_update_delayed_inode+0x37c/0x5e0 [btrfs]
>[  117.206093]  btrfs_async_run_delayed_root+0x356/0x498 [btrfs]
>[  117.206917]  btrfs_work_helper+0x160/0x7a0 [btrfs]
>[  117.207738]  process_one_work+0x3b6/0x838
>[  117.207768]  worker_thread+0x75e/0xb10
>[  117.207797]  kthread+0x21a/0x230
>[  117.207830]  __ret_from_fork+0x6c/0xb8
>[  117.207861]  ret_from_fork+0xa/0x30
>
>[  117.207917] Reported by Kernel Concurrency Sanitizer on:
>[  117.207969] CPU: 0 PID: 11 Comm: kworker/u128:0 Kdump: loaded Not tainted 6.7.4-1.g9e758e0-default #1 openSUSE Tumbleweed (unreleased) b54db25b5c91e1f741a77b8c006738e22884ded0
>[  117.208010] Hardware name: IBM 8561 LT1 400 (z/VM 7.3.0)
>[  117.208030] Workqueue: btrfs-delayed-meta btrfs_work_helper [btrfs]
>[  117.208843] ==================================================================
>[  120.110182] ==================================================================
>[  120.110229] BUG: KCSAN: data-race in rcu_all_qs / rcu_report_qs_rdp
>
>[  120.110274] write (marked) to 0x0000000170c73c15 of 1 bytes by interrupt on cpu 1:
>[  120.110299]  rcu_report_qs_rdp+0x144/0x228
>[  120.110325]  rcu_core+0x860/0xe00
>[  120.110349]  rcu_core_si+0x30/0x48
>[  120.110374]  __do_softirq+0x14c/0x410
>[  120.110402]  irq_exit_rcu+0xae/0xc8
>[  120.110426]  do_ext_irq+0xd8/0x120
>[  120.110452]  ext_int_handler+0xc4/0xf0
>[  120.110479]  delay_loop+0x90/0xd0
>[  120.110506]  __udelay+0x36/0x48
>[  120.110532]  kcsan_setup_watchpoint+0x21a/0x568
>[  120.110562]  delay_loop+0x90/0xd0
>[  120.110590]  __udelay+0x36/0x48
>[  120.110619]  kcsan_setup_watchpoint+0x21a/0x568
>[  120.110651]  delay_loop+0x90/0xd0
>[  120.110681]  __udelay+0x36/0x48
>[  120.110711]  kcsan_setup_watchpoint+0x21a/0x568
>[  120.110756]  rcu_all_qs+0x4e/0x1b0
>[  120.110774]  __cond_resched+0x2c/0x78
>[  120.110790]  copy_page_range+0x1cd4/0x1e28
>[  120.110813]  dup_mmap+0x986/0xe08
>[  120.110837]  copy_process+0x1a74/0x3130
>[  120.110860]  kernel_clone+0xc8/0x568
>[  120.110883]  __do_sys_clone+0xcc/0xe8
>[  120.110907]  __s390x_sys_clone+0x90/0xb0
>[  120.110932]  do_syscall+0x1c6/0x210
>[  120.110959]  __do_syscall+0xc8/0xf0
>[  120.110985]  system_call+0x70/0x98
>
>[  120.111028] read to 0x0000000170c73c15 of 1 bytes by task 6358 on cpu 1:
>[  120.111055]  rcu_all_qs+0x4e/0x1b0
>[  120.111083]  __cond_resched+0x2c/0x78
>[  120.111110]  copy_page_range+0x1cd4/0x1e28
>[  120.111140]  dup_mmap+0x986/0xe08
>[  120.111167]  copy_process+0x1a74/0x3130
>[  120.111195]  kernel_clone+0xc8/0x568
>[  120.111224]  __do_sys_clone+0xcc/0xe8
>[  120.111254]  __s390x_sys_clone+0x90/0xb0
>[  120.111290]  do_syscall+0x1c6/0x210
>[  120.111341]  __do_syscall+0xc8/0xf0
>[  120.111361]  system_call+0x70/0x98
>
>[  120.111392] Reported by Kernel Concurrency Sanitizer on:
>[  120.111410] CPU: 1 PID: 6358 Comm: dracut-install Kdump: loaded Not tainted 6.7.4-1.g9e758e0-default #1 openSUSE Tumbleweed (unreleased) b54db25b5c91e1f741a77b8c006738e22884ded0
>[  120.111450] Hardware name: IBM 8561 LT1 400 (z/VM 7.3.0)
>[  120.111472] ==================================================================
>[  123.116839] ==================================================================
>[  123.116885] BUG: KCSAN: data-race in __hrtimer_run_queues / hrtimer_active
>
>[  123.116933] read to 0x0000000170c43f18 of 8 bytes by interrupt on cpu 3:
>[  123.116961]  hrtimer_active+0x90/0x110
>[  123.116987]  task_tick_fair+0x52/0x3f0
>[  123.117019]  scheduler_tick+0xe6/0x460
>[  123.117049]  update_process_times+0x104/0x120
>[  123.117078]  tick_sched_handle+0x8e/0xd8
>[  123.117114]  tick_nohz_highres_handler+0x82/0x108
>[  123.117151]  __hrtimer_run_queues+0x2d2/0x4d8
>[  123.117188]  hrtimer_interrupt+0x26a/0x528
>[  123.117222]  clock_comparator_work+0x74/0x90
>[  123.117258]  do_IRQ+0x8a/0xa8
>[  123.117292]  do_irq_async+0x7e/0x108
>[  123.117330]  do_ext_irq+0xd2/0x120
>[  123.117370]  ext_int_handler+0xc4/0xf0
>[  123.117413]  __tsan_read_range+0xda/0x1a8
>[  123.117455]  delay_loop+0x7c/0xd0
>[  123.119450]  __udelay+0x36/0x48
>[  123.119482]  kcsan_setup_watchpoint+0x21a/0x568
>[  123.119505]  extent_io_tree_init+0x4c/0x98 [btrfs]
>[  123.120593]  btrfs_alloc_inode+0x262/0x330 [btrfs]
>[  123.121475]  alloc_inode+0x54/0x160
>[  123.121499]  iget5_locked+0x76/0xd0
>[  123.121524]  btrfs_iget_path+0xa2/0xc68 [btrfs]
>[  123.122412]  btrfs_iget+0x48/0x68 [btrfs]
>[  123.123314]  btrfs_lookup_dentry+0x7a0/0xa50 [btrfs]
>[  123.124210]  btrfs_lookup+0x3c/0x70 [btrfs]
>[  123.125124]  __lookup_slow+0xec/0x1c8
>[  123.125155]  walk_component+0x1ee/0x2c8
>[  123.125190]  path_lookupat+0xea/0x360
>[  123.125222]  filename_lookup+0x156/0x2d8
>[  123.125254]  vfs_statx+0x96/0x228
>[  123.125289]  vfs_fstatat+0x98/0x120
>[  123.125328]  __do_sys_newfstatat+0x4a/0x78
>[  123.125367]  __s390x_sys_newfstatat+0x7c/0x98
>[  123.125404]  do_syscall+0x1c6/0x210
>[  123.125440]  __do_syscall+0xc8/0xf0
>[  123.125612]  system_call+0x70/0x98
>
>[  123.125653] write to 0x0000000170c43f18 of 8 bytes by interrupt on cpu 0:
>[  123.125680]  __hrtimer_run_queues+0x1b2/0x4d8
>[  123.125704]  hrtimer_interrupt+0x26a/0x528
>[  123.125728]  clock_comparator_work+0x74/0x90
>[  123.125756]  do_IRQ+0x8a/0xa8
>[  123.125789]  do_irq_async+0x7e/0x108
>[  123.125816]  do_ext_irq+0xd2/0x120
>[  123.125843]  ext_int_handler+0xc4/0xf0
>[  123.125872]  __tsan_read_range+0x9c/0x1a8
>[  123.125904]  delay_loop+0x90/0xd0
>[  123.125937]  __udelay+0x36/0x48
>[  123.125970]  kcsan_setup_watchpoint+0x21a/0x568
>[  123.126007]  delay_loop+0x90/0xd0
>[  123.126045]  __udelay+0x36/0x48
>[  123.126082]  kcsan_setup_watchpoint+0x21a/0x568
>[  123.126120]  delay_loop+0x7c/0xd0
>[  123.126153]  __udelay+0x36/0x48
>[  123.126188]  kcsan_setup_watchpoint+0x21a/0x568
>[  123.126228]  __pte_offset_map_lock+0xd2/0x158
>[  123.129558]  unmap_page_range+0x460/0x1840
>[  123.129593]  unmap_single_vma.isra.0+0xd0/0x140
>[  123.129620]  unmap_vmas+0x152/0x2c8
>[  123.129647]  exit_mmap+0x106/0x580
>[  123.129672]  __mmput+0x9e/0x228
>[  123.129697]  mmput+0x7e/0x90
>[  123.129721]  do_exit+0x596/0x1390
>[  123.129750]  do_group_exit+0x7a/0x140
>[  123.129778]  __s390x_sys_exit_group+0x46/0x48
>[  123.129808]  do_syscall+0x1c6/0x210
>[  123.129841]  __do_syscall+0xc8/0xf0
>[  123.129874]  system_call+0x70/0x98
>
>[  123.129931] Reported by Kernel Concurrency Sanitizer on:
>[  123.129959] CPU: 0 PID: 7179 Comm: ldd Kdump: loaded Not tainted 6.7.4-1.g9e758e0-default #1 openSUSE Tumbleweed (unreleased) b54db25b5c91e1f741a77b8c006738e22884ded0
>[  123.130012] Hardware name: IBM 8561 LT1 400 (z/VM 7.3.0)
>[  123.130044] ==================================================================
>[  123.638326] ==================================================================
>[  123.638362] BUG: KCSAN: data-race in arch_vcpu_is_preempted+0x4a/0xe0
>
>[  123.638400] race at unknown origin, with read to 0x0000000000426288 of 8 bytes by task 7236 on cpu 2:
>[  123.638428]  arch_vcpu_is_preempted+0x4a/0xe0
>[  123.638455]  mutex_spin_on_owner+0xb4/0x170
>[  123.638486]  __mutex_lock.constprop.0+0x760/0xfc8
>[  123.638514]  __mutex_lock_slowpath+0x38/0x50
>[  123.638541]  mutex_lock+0xb4/0xc8
>[  123.638565]  pipe_read+0x488/0x7d0
>[  123.638594]  vfs_read+0x466/0x498
>[  123.638618]  ksys_read+0x108/0x150
>[  123.638643]  __s390x_sys_read+0x68/0x88
>[  123.638670]  do_syscall+0x1c6/0x210
>[  123.638699]  __do_syscall+0xc8/0xf0
>[  123.638730]  system_call+0x70/0x98
>
>[  123.638784] value changed: 0x0000000000000004 -> 0x0000000000000028
>
>[  123.638849] Reported by Kernel Concurrency Sanitizer on:
>[  123.638863] CPU: 2 PID: 7236 Comm: lsof Kdump: loaded Not tainted 6.7.4-1.g9e758e0-default #1 openSUSE Tumbleweed (unreleased) b54db25b5c91e1f741a77b8c006738e22884ded0
>[  123.638895] Hardware name: IBM 8561 LT1 400 (z/VM 7.3.0)
>[  123.638927] ==================================================================
>[  125.897968] NET: Registered PF_ALG protocol family
>[  126.460189] ==================================================================
>[  126.460237] BUG: KCSAN: data-race in rcu_all_qs / rcu_report_qs_rdp
>
>[  126.460278] write (marked) to 0x0000000170cb1c15 of 1 bytes by interrupt on cpu 3:
>[  126.460302]  rcu_report_qs_rdp+0x144/0x228
>[  126.460326]  rcu_core+0x860/0xe00
>[  126.460349]  rcu_core_si+0x30/0x48
>[  126.460373]  __do_softirq+0x14c/0x410
>[  126.460400]  irq_exit_rcu+0xae/0xc8
>[  126.460423]  do_ext_irq+0xd8/0x120
>[  126.460449]  ext_int_handler+0xc4/0xf0
>[  126.460476]  delay_loop+0x6a/0xd0
>[  126.460502]  delay_loop+0xa0/0xd0
>[  126.460528]  __udelay+0x36/0x48
>[  126.460554]  kcsan_setup_watchpoint+0x21a/0x568
>[  126.460583]  delay_loop+0x7c/0xd0
>[  126.460612]  __udelay+0x36/0x48
>[  126.460642]  kcsan_setup_watchpoint+0x21a/0x568
>[  126.460674]  delay_loop+0x90/0xd0
>[  126.460705]  __udelay+0x36/0x48
>[  126.460756]  kcsan_setup_watchpoint+0x21a/0x568
>[  126.460775]  delay_loop+0x90/0xd0
>[  126.460791]  __udelay+0x36/0x48
>[  126.460808]  kcsan_setup_watchpoint+0x21a/0x568
>[  126.460826]  rcu_all_qs+0x4e/0x1b0
>[  126.460857]  __cond_resched+0x2c/0x78
>[  126.460878]  do_wp_page+0xc78/0x1b90
>[  126.460902]  __handle_mm_fault+0x10c0/0x23b0
>[  126.460926]  handle_mm_fault+0x278/0x458
>[  126.460951]  do_exception+0x216/0x930
>[  126.460976]  do_protection_exception+0xca/0x178
>[  126.461003]  __do_pgm_check+0xf4/0x188
>[  126.461030]  pgm_check_handler+0x116/0x168
>
>[  126.461078] read to 0x0000000170cb1c15 of 1 bytes by task 7451 on cpu 3:
>[  126.461107]  rcu_all_qs+0x4e/0x1b0
>[  126.461137]  __cond_resched+0x2c/0x78
>[  126.461165]  do_wp_page+0xc78/0x1b90
>[  126.461193]  __handle_mm_fault+0x10c0/0x23b0
>[  126.461224]  handle_mm_fault+0x278/0x458
>[  126.461260]  do_exception+0x216/0x930
>[  126.461276]  do_protection_exception+0xca/0x178
>[  126.461299]  __do_pgm_check+0xf4/0x188
>[  126.461318]  pgm_check_handler+0x116/0x168
>
>[  126.461351] Reported by Kernel Concurrency Sanitizer on:
>[  126.461370] CPU: 3 PID: 7451 Comm: ldd Kdump: loaded Not tainted 6.7.4-1.g9e758e0-default #1 openSUSE Tumbleweed (unreleased) b54db25b5c91e1f741a77b8c006738e22884ded0
>[  126.461407] Hardware name: IBM 8561 LT1 400 (z/VM 7.3.0)
>[  126.461429] ==================================================================
>[  127.362975] ==================================================================
>[  127.363017] BUG: KCSAN: data-race in arch_vcpu_is_preempted+0x4a/0xe0
>
>[  127.363055] race at unknown origin, with read to 0x0000000000426288 of 8 bytes by task 7469 on cpu 2:
>[  127.363080]  arch_vcpu_is_preempted+0x4a/0xe0
>[  127.363102]  mutex_spin_on_owner+0xb4/0x170
>[  127.363128]  __mutex_lock.constprop.0+0x760/0xfc8
>[  127.363156]  __mutex_lock_slowpath+0x38/0x50
>[  127.363181]  mutex_lock+0xb4/0xc8
>[  127.363206]  pipe_write+0x98/0xab8
>[  127.363233]  vfs_write+0x33c/0x588
>[  127.363258]  ksys_write+0x108/0x150
>[  127.363282]  __s390x_sys_write+0x68/0x88
>[  127.363308]  do_syscall+0x1c6/0x210
>[  127.363336]  __do_syscall+0xc8/0xf0
>[  127.363365]  system_call+0x70/0x98
>
>[  127.363416] value changed: 0x0000000000000004 -> 0x0000000000000028
>
>[  127.363489] Reported by Kernel Concurrency Sanitizer on:
>[  127.363504] CPU: 2 PID: 7469 Comm: cpio Kdump: loaded Not tainted 6.7.4-1.g9e758e0-default #1 openSUSE Tumbleweed (unreleased) b54db25b5c91e1f741a77b8c006738e22884ded0
>[  127.363537] Hardware name: IBM 8561 LT1 400 (z/VM 7.3.0)
>[  127.363571] ==================================================================
>[  127.413013] ==================================================================
>[  127.413077] BUG: KCSAN: data-race in poll_schedule_timeout.constprop.0 / pollwake
>
>[  127.413141] write (marked) to 0x000003800032fae0 of 4 bytes by task 7470 on cpu 3:
>[  127.413163]  poll_schedule_timeout.constprop.0+0xbe/0xe8
>[  127.413187]  do_sys_poll+0x602/0x840
>[  127.413209]  __s390x_sys_poll+0x70/0x248
>[  127.413232]  do_syscall+0x1c6/0x210
>[  127.413255]  __do_syscall+0xc8/0xf0
>[  127.413280]  system_call+0x70/0x98
>
>[  127.413322] write to 0x000003800032fae0 of 4 bytes by task 7469 on cpu 2:
>[  127.413348]  pollwake+0xc6/0x118
>[  127.413374]  __wake_up_common+0xa0/0xc8
>[  127.413403]  __wake_up_common_lock+0x5e/0xa0
>[  127.413430]  __wake_up_sync_key+0x34/0x48
>[  127.413457]  pipe_write+0x7ca/0xab8
>[  127.413487]  vfs_write+0x33c/0x588
>[  127.413514]  ksys_write+0x108/0x150
>[  127.413542]  __s390x_sys_write+0x68/0x88
>[  127.413576]  do_syscall+0x1c6/0x210
>[  127.413593]  __do_syscall+0xc8/0xf0
>[  127.413612]  system_call+0x70/0x98
>
>[  127.413642] value changed: 0x00000001 -> 0x00000000
>
>[  127.413672] Reported by Kernel Concurrency Sanitizer on:
>[  127.413691] CPU: 2 PID: 7469 Comm: cpio Kdump: loaded Not tainted 6.7.4-1.g9e758e0-default #1 openSUSE Tumbleweed (unreleased) b54db25b5c91e1f741a77b8c006738e22884ded0
>[  127.413730] Hardware name: IBM 8561 LT1 400 (z/VM 7.3.0)
>[  127.413753] ==================================================================
>[  128.038212] ==================================================================
>[  128.038261] BUG: KCSAN: data-race in pipe_poll / pipe_write
>
>[  128.038302] write (marked) to 0x00000000978e4af8 of 1 bytes by task 7470 on cpu 3:
>[  128.038326]  pipe_poll+0x4c/0x2b8
>[  128.038349]  do_sys_poll+0x43c/0x840
>[  128.038373]  __s390x_sys_poll+0x70/0x248
>[  128.038398]  do_syscall+0x1c6/0x210
>[  128.038423]  __do_syscall+0xc8/0xf0
>[  128.038450]  system_call+0x70/0x98
>
>[  128.038495] read to 0x00000000978e4af8 of 1 bytes by task 7469 on cpu 0:
>[  128.038523]  pipe_write+0x7a0/0xab8
>[  128.038551]  vfs_write+0x33c/0x588
>[  128.038575]  ksys_write+0x108/0x150
>[  128.038601]  __s390x_sys_write+0x68/0x88
>[  128.038628]  do_syscall+0x1c6/0x210
>[  128.038657]  __do_syscall+0xc8/0xf0
>[  128.038687]  system_call+0x70/0x98
>
>[  128.038812] Reported by Kernel Concurrency Sanitizer on:
>[  128.038838] CPU: 0 PID: 7469 Comm: cpio Kdump: loaded Not tainted 6.7.4-1.g9e758e0-default #1 openSUSE Tumbleweed (unreleased) b54db25b5c91e1f741a77b8c006738e22884ded0
>[  128.038873] Hardware name: IBM 8561 LT1 400 (z/VM 7.3.0)
>[  128.038892] ==================================================================
>[  128.393497] ==================================================================
>[  128.393543] BUG: KCSAN: data-race in __hrtimer_run_queues / hrtimer_active
>
>[  128.393587] read to 0x0000000170c43f18 of 8 bytes by interrupt on cpu 1:
>[  128.393612]  hrtimer_active+0x90/0x110
>[  128.393635]  task_tick_fair+0x52/0x3f0
>[  128.393663]  scheduler_tick+0xe6/0x460
>[  128.393691]  update_process_times+0x104/0x120
>[  128.393719]  tick_sched_handle+0x8e/0xd8
>[  128.393748]  tick_nohz_highres_handler+0x82/0x108
>[  128.393778]  __hrtimer_run_queues+0x2d2/0x4d8
>[  128.393807]  hrtimer_interrupt+0x26a/0x528
>[  128.393837]  clock_comparator_work+0x74/0x90
>[  128.393871]  do_IRQ+0x8a/0xa8
>[  128.393906]  do_irq_async+0x7e/0x108
>[  128.393942]  do_ext_irq+0xd2/0x120
>[  128.393980]  ext_int_handler+0xc4/0xf0
>
>[  128.394044] write to 0x0000000170c43f18 of 8 bytes by interrupt on cpu 0:
>[  128.398380]  __hrtimer_run_queues+0x214/0x4d8
>[  128.398409]  hrtimer_interrupt+0x26a/0x528
>[  128.398432]  clock_comparator_work+0x74/0x90
>[  128.398455]  do_IRQ+0x8a/0xa8
>[  128.398478]  do_irq_async+0x7e/0x108
>[  128.398504]  do_ext_irq+0xd2/0x120
>[  128.398528]  ext_int_handler+0xc4/0xf0
>[  128.398554]  __tsan_read8+0x34/0x1a0
>[  128.398579]  filemap_read+0x198/0x728
>[  128.398607]  btrfs_file_read_iter+0xf8/0x410 [btrfs]
>[  128.399658]  vfs_read+0x2b6/0x498
>[  128.399684]  ksys_read+0xa2/0x150
>[  128.399709]  __s390x_sys_read+0x68/0x88
>[  128.399735]  do_syscall+0x1c6/0x210
>[  128.399764]  __do_syscall+0xc8/0xf0
>[  128.399794]  system_call+0x70/0x98
>
>[  128.399846] Reported by Kernel Concurrency Sanitizer on:
>[  128.399874] CPU: 0 PID: 7469 Comm: cpio Kdump: loaded Not tainted 6.7.4-1.g9e758e0-default #1 openSUSE Tumbleweed (unreleased) b54db25b5c91e1f741a77b8c006738e22884ded0
>[  128.399939] Hardware name: IBM 8561 LT1 400 (z/VM 7.3.0)
>[  128.399959] ==================================================================
>[  128.584064] ==================================================================
>[  128.584113] BUG: KCSAN: data-race in pipe_poll / pipe_write
>
>[  128.584158] read (marked) to 0x00000000978e4ad0 of 4 bytes by task 7470 on cpu 1:
>[  128.584184]  pipe_poll+0x1a2/0x2b8
>[  128.584210]  do_sys_poll+0x43c/0x840
>[  128.584236]  __s390x_sys_poll+0x70/0x248
>[  128.584262]  do_syscall+0x1c6/0x210
>[  128.584286]  __do_syscall+0xc8/0xf0
>[  128.584314]  system_call+0x70/0x98
>
>[  128.584357] write to 0x00000000978e4ad0 of 4 bytes by task 7469 on cpu 0:
>[  128.584383]  pipe_write+0x55c/0xab8
>[  128.584411]  vfs_write+0x33c/0x588
>[  128.584436]  ksys_write+0x108/0x150
>[  128.584461]  __s390x_sys_write+0x68/0x88
>[  128.584489]  do_syscall+0x1c6/0x210
>[  128.584517]  __do_syscall+0xc8/0xf0
>[  128.584548]  system_call+0x70/0x98
>
>[  128.584650] Reported by Kernel Concurrency Sanitizer on:
>[  128.584681] CPU: 0 PID: 7469 Comm: cpio Kdump: loaded Not tainted 6.7.4-1.g9e758e0-default #1 openSUSE Tumbleweed (unreleased) b54db25b5c91e1f741a77b8c006738e22884ded0
>[  128.584716] Hardware name: IBM 8561 LT1 400 (z/VM 7.3.0)
>[  128.584735] ==================================================================
>[  130.166838] ==================================================================
>[  130.166887] BUG: KCSAN: data-race in poll_schedule_timeout.constprop.0 / pollwake
>
>[  130.166932] write to 0x000003800032fb08 of 4 bytes by task 7469 on cpu 0:
>[  130.166955]  pollwake+0xc6/0x118
>[  130.166979]  __wake_up_common+0xa0/0xc8
>[  130.167006]  __wake_up_common_lock+0x5e/0xa0
>[  130.167031]  __wake_up_sync_key+0x34/0x48
>[  130.167055]  pipe_write+0x7ca/0xab8
>[  130.167082]  vfs_write+0x33c/0x588
>[  130.167106]  ksys_write+0x108/0x150
>[  130.167131]  __s390x_sys_write+0x68/0x88
>[  130.167157]  do_syscall+0x1c6/0x210
>[  130.167185]  __do_syscall+0xc8/0xf0
>[  130.167215]  system_call+0x70/0x98
>
>[  130.167268] read to 0x000003800032fb08 of 4 bytes by task 7470 on cpu 3:
>[  130.167301]  poll_schedule_timeout.constprop.0+0x6c/0xe8
>[  130.167336]  do_sys_poll+0x602/0x840
>[  130.167391]  __s390x_sys_poll+0x70/0x248
>[  130.167411]  do_syscall+0x1c6/0x210
>[  130.167431]  __do_syscall+0xc8/0xf0
>[  130.167451]  system_call+0x70/0x98
>
>[  130.167482] value changed: 0x00000000 -> 0x00000001
>
>[  130.167509] Reported by Kernel Concurrency Sanitizer on:
>[  130.167525] CPU: 3 PID: 7470 Comm: xz Kdump: loaded Not tainted 6.7.4-1.g9e758e0-default #1 openSUSE Tumbleweed (unreleased) b54db25b5c91e1f741a77b8c006738e22884ded0
>[  130.167562] Hardware name: IBM 8561 LT1 400 (z/VM 7.3.0)
>[  130.167579] ==================================================================
>[  160.483116] ==================================================================
>[  160.483163] BUG: KCSAN: data-race in rcu_all_qs / rcu_report_qs_rdp
>
>[  160.483210] write (marked) to 0x0000000170c73c15 of 1 bytes by interrupt on cpu 1:
>[  160.483235]  rcu_report_qs_rdp+0x144/0x228
>[  160.483262]  rcu_core+0x860/0xe00
>[  160.483291]  rcu_core_si+0x30/0x48
>[  160.483318]  __do_softirq+0x14c/0x410
>[  160.483347]  irq_exit_rcu+0xae/0xc8
>[  160.483371]  do_ext_irq+0xd8/0x120
>[  160.483397]  ext_int_handler+0xc4/0xf0
>[  160.483424]  __tsan_read_range+0xd4/0x1a8
>[  160.483450]  delay_loop+0x90/0xd0
>[  160.483476]  __udelay+0x36/0x48
>[  160.483502]  kcsan_setup_watchpoint+0x21a/0x568
>[  160.483531]  delay_loop+0x7c/0xd0
>[  160.483559]  __udelay+0x36/0x48
>[  160.483587]  kcsan_setup_watchpoint+0x21a/0x568
>[  160.483617]  delay_loop+0x7c/0xd0
>[  160.483647]  __udelay+0x36/0x48
>[  160.483685]  kcsan_setup_watchpoint+0x21a/0x568
>[  160.483704]  rcu_all_qs+0x4e/0x1b0
>[  160.483722]  __cond_resched+0x2c/0x78
>[  160.483738]  btrfs_search_slot+0x8a/0x19b8 [btrfs]
>[  160.484562]  btrfs_lookup_csums_list+0x166/0x928 [btrfs]
>[  160.485357]  csum_exist_in_range+0x8e/0x180 [btrfs]
>[  160.486132]  can_nocow_file_extent+0x4da/0x5b8 [btrfs]
>[  160.486909]  run_delalloc_nocow+0x3e0/0x8a0 [btrfs]
>[  160.487688]  btrfs_run_delalloc_range+0xda/0x768 [btrfs]
>[  160.488469]  writepage_delalloc+0x104/0x1d8 [btrfs]
>[  160.489253]  extent_write_cache_pages+0x4b6/0xd50 [btrfs]
>[  160.490038]  extent_writepages+0xd4/0x1a8 [btrfs]
>[  160.490825]  btrfs_writepages+0x3c/0x58 [btrfs]
>[  160.491606]  do_writepages+0xa8/0x2d8
>[  160.491637]  __writeback_single_inode+0x78/0x768
>[  160.491671]  writeback_sb_inodes+0x448/0x9f8
>[  160.491703]  __writeback_inodes_wb+0x84/0x1c0
>[  160.491736]  wb_writeback+0x4a0/0x5a0
>[  160.491773]  wb_workfn+0x714/0x9a8
>[  160.491791]  process_one_work+0x3b6/0x838
>[  160.491808]  worker_thread+0x75e/0xb10
>[  160.491824]  kthread+0x21a/0x230
>[  160.491843]  __ret_from_fork+0x6c/0xb8
>[  160.491860]  ret_from_fork+0xa/0x30
>
>[  160.491887] read to 0x0000000170c73c15 of 1 bytes by task 219 on cpu 1:
>[  160.491904]  rcu_all_qs+0x4e/0x1b0
>[  160.491922]  __cond_resched+0x2c/0x78
>[  160.491937]  btrfs_search_slot+0x8a/0x19b8 [btrfs]
>[  160.492703]  btrfs_lookup_csums_list+0x166/0x928 [btrfs]
>[  160.493475]  csum_exist_in_range+0x8e/0x180 [btrfs]
>[  160.494245]  can_nocow_file_extent+0x4da/0x5b8 [btrfs]
>[  160.495022]  run_delalloc_nocow+0x3e0/0x8a0 [btrfs]
>[  160.495812]  btrfs_run_delalloc_range+0xda/0x768 [btrfs]
>[  160.496597]  writepage_delalloc+0x104/0x1d8 [btrfs]
>[  160.497386]  extent_write_cache_pages+0x4b6/0xd50 [btrfs]
>[  160.498174]  extent_writepages+0xd4/0x1a8 [btrfs]
>[  160.498968]  btrfs_writepages+0x3c/0x58 [btrfs]
>[  160.499740]  do_writepages+0xa8/0x2d8
>[  160.499757]  __writeback_single_inode+0x78/0x768
>[  160.499777]  writeback_sb_inodes+0x448/0x9f8
>[  160.499795]  __writeback_inodes_wb+0x84/0x1c0
>[  160.499813]  wb_writeback+0x4a0/0x5a0
>[  160.499831]  wb_workfn+0x714/0x9a8
>[  160.499848]  process_one_work+0x3b6/0x838
>[  160.499863]  worker_thread+0x75e/0xb10
>[  160.499878]  kthread+0x21a/0x230
>[  160.499895]  __ret_from_fork+0x6c/0xb8
>[  160.499910]  ret_from_fork+0xa/0x30
>
>[  160.499936] Reported by Kernel Concurrency Sanitizer on:
>[  160.499950] CPU: 1 PID: 219 Comm: kworker/u131:3 Kdump: loaded Not tainted 6.7.4-1.g9e758e0-default #1 openSUSE Tumbleweed (unreleased) b54db25b5c91e1f741a77b8c006738e22884ded0
>[  160.499982] Hardware name: IBM 8561 LT1 400 (z/VM 7.3.0)
>[  160.499997] Workqueue: writeback wb_workfn (flush-btrfs-1)
>[  160.500023] ==================================================================
>[  199.552820] ==================================================================
>[  199.553628] BUG: KCSAN: data-race in btrfs_record_root_in_trans [btrfs] / record_root_in_trans [btrfs]
>
>[  199.555186] read to 0x000000008801e308 of 8 bytes by task 2812 on cpu 1:
>[  199.555210]  btrfs_record_root_in_trans+0x9a/0x128 [btrfs]
>[  199.555999]  start_transaction+0x154/0xcd8 [btrfs]
>[  199.556780]  btrfs_join_transaction+0x44/0x60 [btrfs]
>[  199.557559]  btrfs_dirty_inode+0x9c/0x140 [btrfs]
>[  199.558339]  btrfs_update_time+0x8c/0xb0 [btrfs]
>[  199.559123]  touch_atime+0x16c/0x1e0
>[  199.559151]  pipe_read+0x6a8/0x7d0
>[  199.559179]  vfs_read+0x466/0x498
>[  199.559204]  ksys_read+0x108/0x150
>[  199.559230]  __s390x_sys_read+0x68/0x88
>[  199.559257]  do_syscall+0x1c6/0x210
>[  199.559286]  __do_syscall+0xc8/0xf0
>[  199.559318]  system_call+0x70/0x98
>
>[  199.559431] write to 0x000000008801e308 of 8 bytes by task 2808 on cpu 0:
>[  199.559464]  record_root_in_trans+0x196/0x228 [btrfs]
>[  199.560236]  btrfs_record_root_in_trans+0xfe/0x128 [btrfs]
>[  199.561097]  start_transaction+0x154/0xcd8 [btrfs]
>[  199.561927]  btrfs_join_transaction+0x44/0x60 [btrfs]
>[  199.562700]  btrfs_dirty_inode+0x9c/0x140 [btrfs]
>[  199.563493]  btrfs_update_time+0x8c/0xb0 [btrfs]
>[  199.564277]  file_update_time+0xb8/0xf0
>[  199.564301]  pipe_write+0x8ac/0xab8
>[  199.564326]  vfs_write+0x33c/0x588
>[  199.564349]  ksys_write+0x108/0x150
>[  199.564372]  __s390x_sys_write+0x68/0x88
>[  199.564397]  do_syscall+0x1c6/0x210
>[  199.564424]  __do_syscall+0xc8/0xf0
>[  199.564452]  system_call+0x70/0x98
>
>[  199.564501] Reported by Kernel Concurrency Sanitizer on:
>[  199.564528] CPU: 0 PID: 2808 Comm: master Kdump: loaded Not tainted 6.7.4-1.g9e758e0-default #1 openSUSE Tumbleweed (unreleased) b54db25b5c91e1f741a77b8c006738e22884ded0
>[  199.564583] Hardware name: IBM 8561 LT1 400 (z/VM 7.3.0)
>[  199.564597] ==================================================================
>[  531.973201] ==================================================================
>[  531.973262] BUG: KCSAN: data-race in blk_mq_delay_run_hw_queue / blk_mq_delay_run_hw_queue
>
>[  531.973307] read to 0x000000008459bd98 of 4 bytes by interrupt on cpu 2:
>[  531.973331]  blk_mq_delay_run_hw_queue+0x74/0x258
>[  531.973355]  blk_mq_run_hw_queue+0x288/0x308
>[  531.973379]  __blk_mq_sched_restart+0x60/0x78
>[  531.973414]  __blk_mq_free_request+0x164/0x200
>[  531.973443]  blk_mq_free_request+0x162/0x1c8
>[  531.973471]  blk_mq_end_request+0xf4/0x240
>[  531.973499]  dasd_request_done+0x38/0x68 [dasd_mod]
>[  531.973621]  blk_mq_complete_request+0x70/0x88
>[  531.973654]  __dasd_cleanup_cqr+0x970/0xbb0 [dasd_mod]
>[  531.973770]  dasd_block_tasklet+0x560/0x928 [dasd_mod]
>[  531.973887]  tasklet_action_common.isra.0+0x14e/0x348
>[  531.973918]  __do_softirq+0x14c/0x410
>[  531.973952]  irq_exit_rcu+0xae/0xc8
>[  531.973991]  do_io_irq+0xc2/0x120
>[  531.974008]  io_int_handler+0xc4/0xf0
>[  531.974025]  __tsan_read8+0x94/0x1a0
>[  531.974042]  __udelay+0x3c/0x48
>[  531.974058]  delay_loop+0xa0/0xd0
>[  531.974074]  __udelay+0x36/0x48
>[  531.974089]  kcsan_setup_watchpoint+0x21a/0x568
>[  531.974107]  delay_loop+0x7c/0xd0
>[  531.974123]  __udelay+0x36/0x48
>[  531.974138]  kcsan_setup_watchpoint+0x21a/0x568
>[  531.974155]  delay_loop+0x7c/0xd0
>[  531.974171]  __udelay+0x36/0x48
>[  531.974187]  kcsan_setup_watchpoint+0x21a/0x568
>[  531.974204]  blk_mq_delay_run_hw_queue+0x1a0/0x258
>[  531.974220]  blk_mq_dispatch_rq_list+0xa56/0xf90
>[  531.974236]  __blk_mq_sched_dispatch_requests+0xa58/0xb70
>[  531.974255]  blk_mq_sched_dispatch_requests+0xca/0x108
>[  531.974273]  blk_mq_run_work_fn+0xcc/0xe8
>[  531.974291]  process_one_work+0x3b6/0x838
>[  531.974307]  worker_thread+0x75e/0xb10
>[  531.974322]  kthread+0x21a/0x230
>[  531.974339]  __ret_from_fork+0x6c/0xb8
>[  531.974356]  ret_from_fork+0xa/0x30
>
>[  531.974382] write to 0x000000008459bd98 of 4 bytes by task 163 on cpu 2:
>[  531.974398]  blk_mq_delay_run_hw_queue+0x1a0/0x258
>[  531.974415]  blk_mq_dispatch_rq_list+0xa56/0xf90
>[  531.974431]  __blk_mq_sched_dispatch_requests+0xa58/0xb70
>[  531.974449]  blk_mq_sched_dispatch_requests+0xca/0x108
>[  531.974468]  blk_mq_run_work_fn+0xcc/0xe8
>[  531.974485]  process_one_work+0x3b6/0x838
>[  531.974500]  worker_thread+0x75e/0xb10
>[  531.974515]  kthread+0x21a/0x230
>[  531.974532]  __ret_from_fork+0x6c/0xb8
>[  531.974547]  ret_from_fork+0xa/0x30
>
>[  531.974572] Reported by Kernel Concurrency Sanitizer on:
>[  531.974587] CPU: 2 PID: 163 Comm: kworker/2:1H Kdump: loaded Not tainted 6.7.4-1.g9e758e0-default #1 openSUSE Tumbleweed (unreleased) b54db25b5c91e1f741a77b8c006738e22884ded0
>[  531.974619] Hardware name: IBM 8561 LT1 400 (z/VM 7.3.0)
>[  531.974633] Workqueue: kblockd blk_mq_run_work_fn
>[  531.974656] ==================================================================
>[  628.680371] ==================================================================
>[  628.680418] BUG: KCSAN: data-race in rcu_all_qs / rcu_report_qs_rdp
>
>[  628.680460] write (marked) to 0x0000000170c73c15 of 1 bytes by interrupt on cpu 1:
>[  628.680483]  rcu_report_qs_rdp+0x144/0x228
>[  628.680508]  rcu_core+0x860/0xe00
>[  628.680532]  rcu_core_si+0x30/0x48
>[  628.680556]  __do_softirq+0x14c/0x410
>[  628.680594]  irq_exit_rcu+0xae/0xc8
>[  628.680618]  do_ext_irq+0xd8/0x120
>[  628.680645]  ext_int_handler+0xc4/0xf0
>[  628.680672]  __tsan_read8+0x9a/0x1a0
>[  628.680698]  delay_loop+0xa0/0xd0
>[  628.680724]  __udelay+0x36/0x48
>[  628.680928]  kcsan_setup_watchpoint+0x21a/0x568
>[  628.680957]  delay_loop+0x7c/0xd0
>[  628.680989]  __udelay+0x36/0x48
>[  628.681018]  kcsan_setup_watchpoint+0x21a/0x568
>[  628.681052]  delay_loop+0x7c/0xd0
>[  628.681082]  __udelay+0x36/0x48
>[  628.681130]  kcsan_setup_watchpoint+0x21a/0x568
>[  628.681147]  delay_loop+0x7c/0xd0
>[  628.681163]  __udelay+0x36/0x48
>[  628.681215]  kcsan_setup_watchpoint+0x21a/0x568
>[  628.681235]  delay_loop+0x90/0xd0
>[  628.681255]  __udelay+0x36/0x48
>[  628.681275]  kcsan_setup_watchpoint+0x21a/0x568
>[  628.681297]  rcu_all_qs+0x4e/0x1b0
>[  628.681320]  __cond_resched+0x2c/0x78
>[  628.681342]  __get_user_pages+0x11a/0x628
>[  628.681366]  get_user_pages_remote+0x10c/0x568
>[  628.681390]  get_arg_page+0xa6/0x348
>[  628.681417]  copy_string_kernel+0xe6/0x218
>[  628.681444]  do_execveat_common.isra.0+0x24e/0x3d8
>[  628.681474]  __s390x_sys_execve+0x8a/0xa8
>[  628.681537]  do_syscall+0x1c6/0x210
>[  628.681566]  __do_syscall+0xc8/0xf0
>[  628.681595]  system_call+0x70/0x98
>
>[  628.681647] read to 0x0000000170c73c15 of 1 bytes by task 7646 on cpu 1:
>[  628.681686]  rcu_all_qs+0x4e/0x1b0
>[  628.681703]  __cond_resched+0x2c/0x78
>[  628.681721]  __get_user_pages+0x11a/0x628
>[  628.681739]  get_user_pages_remote+0x10c/0x568
>[  628.681758]  get_arg_page+0xa6/0x348
>[  628.681779]  copy_string_kernel+0xe6/0x218
>[  628.681802]  do_execveat_common.isra.0+0x24e/0x3d8
>[  628.681826]  __s390x_sys_execve+0x8a/0xa8
>[  628.681850]  do_syscall+0x1c6/0x210
>[  628.681873]  __do_syscall+0xc8/0xf0
>[  628.681897]  system_call+0x70/0x98
>
>[  628.681939] Reported by Kernel Concurrency Sanitizer on:
>[  628.681962] CPU: 1 PID: 7646 Comm: grub Kdump: loaded Not tainted 6.7.4-1.g9e758e0-default #1 openSUSE Tumbleweed (unreleased) b54db25b5c91e1f741a77b8c006738e22884ded0
>[  628.682005] Hardware name: IBM 8561 LT1 400 (z/VM 7.3.0)
>[  628.682032] ==================================================================
>[  629.150190] ==================================================================
>[  629.150238] BUG: KCSAN: data-race in __hrtimer_run_queues / hrtimer_active
>
>[  629.150280] read to 0x0000000170c43f18 of 8 bytes by interrupt on cpu 1:
>[  629.150306]  hrtimer_active+0x90/0x110
>[  629.150332]  task_tick_fair+0x52/0x3f0
>[  629.150363]  scheduler_tick+0xe6/0x460
>[  629.150391]  update_process_times+0x104/0x120
>[  629.150418]  tick_sched_handle+0x8e/0xd8
>[  629.150448]  tick_nohz_highres_handler+0x82/0x108
>[  629.150479]  __hrtimer_run_queues+0x2d2/0x4d8
>[  629.150509]  hrtimer_interrupt+0x26a/0x528
>[  629.150539]  clock_comparator_work+0x74/0x90
>[  629.150570]  do_IRQ+0x8a/0xa8
>[  629.150602]  do_irq_async+0x7e/0x108
>[  629.150635]  do_ext_irq+0xd2/0x120
>[  629.150670]  ext_int_handler+0xc4/0xf0
>[  629.150705]  __tsan_read_range+0xda/0x1a8
>[  629.150739]  delay_loop+0x7c/0xd0
>[  629.150821]  __udelay+0x36/0x48
>[  629.150860]  kcsan_setup_watchpoint+0x21a/0x568
>[  629.150889]  delay_loop+0x7c/0xd0
>[  629.150912]  __udelay+0x36/0x48
>[  629.150934]  kcsan_setup_watchpoint+0x21a/0x568
>[  629.150958]  rcu_all_qs+0x4e/0x1b0
>[  629.150985]  __cond_resched+0x2c/0x78
>[  629.151009]  __alloc_pages+0x1d8/0x330
>[  629.151034]  alloc_pages_mpol+0x17c/0x380
>[  629.151062]  vma_alloc_folio+0x7e/0x110
>[  629.151089]  do_wp_page+0x5ec/0x1b90
>[  629.151116]  __handle_mm_fault+0x10c0/0x23b0
>[  629.151145]  handle_mm_fault+0x278/0x458
>[  629.151175]  do_exception+0x216/0x930
>[  629.151208]  do_protection_exception+0xca/0x178
>[  629.151239]  __do_pgm_check+0xf4/0x188
>[  629.151271]  pgm_check_handler+0x116/0x168
>
>[  629.151326] write to 0x0000000170c43f18 of 8 bytes by interrupt on cpu 0:
>[  629.151360]  __hrtimer_run_queues+0x1b2/0x4d8
>[  629.151432]  hrtimer_interrupt+0x26a/0x528
>[  629.151460]  clock_comparator_work+0x74/0x90
>[  629.151483]  do_IRQ+0x8a/0xa8
>[  629.151507]  do_irq_async+0x7e/0x108
>[  629.151531]  do_ext_irq+0xd2/0x120
>[  629.151556]  ext_int_handler+0xc4/0xf0
>[  629.151581]  __tsan_read_range+0x5c/0x1a8
>[  629.151607]  delay_loop+0x90/0xd0
>[  629.151632]  __udelay+0x36/0x48
>[  629.151659]  kcsan_setup_watchpoint+0x21a/0x568
>[  629.151687]  delay_loop+0x90/0xd0
>[  629.151714]  __udelay+0x36/0x48
>[  629.151742]  kcsan_setup_watchpoint+0x21a/0x568
>[  629.151772]  delay_loop+0x90/0xd0
>[  629.151801]  __udelay+0x36/0x48
>[  629.151831]  kcsan_setup_watchpoint+0x21a/0x568
>[  629.151863]  delay_loop+0x7c/0xd0
>[  629.151894]  __udelay+0x36/0x48
>[  629.151925]  kcsan_setup_watchpoint+0x21a/0x568
>[  629.151958]  delay_loop+0x7c/0xd0
>[  629.151990]  __udelay+0x36/0x48
>[  629.152049]  kcsan_setup_watchpoint+0x21a/0x568
>[  629.152071]  delay_loop+0x90/0xd0
>[  629.152091]  __udelay+0x36/0x48
>[  629.152111]  kcsan_setup_watchpoint+0x21a/0x568
>[  629.152134]  delay_loop+0x7c/0xd0
>[  629.152157]  __udelay+0x36/0x48
>[  629.152180]  kcsan_setup_watchpoint+0x21a/0x568
>[  629.152205]  set_pte_range+0x1a0/0x5c0
>[  629.152230]  filemap_map_pages+0x5f6/0x910
>[  629.152260]  __handle_mm_fault+0x14cc/0x23b0
>[  629.152288]  handle_mm_fault+0x278/0x458
>[  629.152317]  do_exception+0x216/0x930
>[  629.152345]  do_dat_exception+0x38/0x50
>[  629.152376]  __do_pgm_check+0xf4/0x188
>[  629.152406]  pgm_check_handler+0x116/0x168
>
>[  629.152459] Reported by Kernel Concurrency Sanitizer on:
>[  629.152488] CPU: 0 PID: 7681 Comm: grub Kdump: loaded Not tainted 6.7.4-1.g9e758e0-default #1 openSUSE Tumbleweed (unreleased) b54db25b5c91e1f741a77b8c006738e22884ded0
>[  629.152585] Hardware name: IBM 8561 LT1 400 (z/VM 7.3.0)
>[  629.152618] ==================================================================
>[  632.220205] ==================================================================
>[  632.220250] BUG: KCSAN: data-race in rcu_all_qs / rcu_report_qs_rdp
>
>[  632.220294] write (marked) to 0x0000000170c73c15 of 1 bytes by interrupt on cpu 1:
>[  632.220318]  rcu_report_qs_rdp+0x144/0x228
>[  632.220344]  rcu_core+0x860/0xe00
>[  632.220367]  rcu_core_si+0x30/0x48
>[  632.220392]  __do_softirq+0x14c/0x410
>[  632.220420]  irq_exit_rcu+0xae/0xc8
>[  632.220444]  do_ext_irq+0xd8/0x120
>[  632.220470]  ext_int_handler+0xc4/0xf0
>[  632.220498]  __tsan_read_range+0xd4/0x1a8
>[  632.220526]  delay_loop+0x90/0xd0
>[  632.220553]  __udelay+0x36/0x48
>[  632.220581]  kcsan_setup_watchpoint+0x21a/0x568
>[  632.220611]  delay_loop+0x90/0xd0
>[  632.220640]  __udelay+0x36/0x48
>[  632.220670]  kcsan_setup_watchpoint+0x21a/0x568
>[  632.220702]  delay_loop+0x90/0xd0
>[  632.220734]  __udelay+0x36/0x48
>[  632.220786]  kcsan_setup_watchpoint+0x21a/0x568
>[  632.220804]  delay_loop+0x7c/0xd0
>[  632.220820]  __udelay+0x36/0x48
>[  632.220837]  kcsan_setup_watchpoint+0x21a/0x568
>[  632.220864]  delay_loop+0x7c/0xd0
>[  632.220885]  __udelay+0x36/0x48
>[  632.220905]  kcsan_setup_watchpoint+0x21a/0x568
>[  632.220929]  delay_loop+0x7c/0xd0
>[  632.220951]  __udelay+0x36/0x48
>[  632.220974]  kcsan_setup_watchpoint+0x21a/0x568
>[  632.221000]  rcu_all_qs+0x4e/0x1b0
>[  632.221025]  __cond_resched+0x2c/0x78
>[  632.221051]  kmem_cache_alloc+0x518/0x588
>[  632.221081]  anon_vma_fork+0x15a/0x320
>[  632.221109]  dup_mmap+0x95a/0xe08
>[  632.221136]  copy_process+0x1a74/0x3130
>[  632.221163]  kernel_clone+0xc8/0x568
>[  632.221191]  __do_sys_clone+0xcc/0xe8
>[  632.221220]  __s390x_sys_clone+0x90/0xb0
>[  632.221250]  do_syscall+0x1c6/0x210
>[  632.221282]  __do_syscall+0xc8/0xf0
>[  632.221320]  system_call+0x70/0x98
>
>[  632.221346] read to 0x0000000170c73c15 of 1 bytes by task 7525 on cpu 1:
>[  632.221365]  rcu_all_qs+0x4e/0x1b0
>[  632.221385]  __cond_resched+0x2c/0x78
>[  632.221405]  kmem_cache_alloc+0x518/0x588
>[  632.221427]  anon_vma_fork+0x15a/0x320
>[  632.221448]  dup_mmap+0x95a/0xe08
>[  632.221467]  copy_process+0x1a74/0x3130
>[  632.221489]  kernel_clone+0xc8/0x568
>[  632.221511]  __do_sys_clone+0xcc/0xe8
>[  632.221534]  __s390x_sys_clone+0x90/0xb0
>[  632.221558]  do_syscall+0x1c6/0x210
>[  632.221584]  __do_syscall+0xc8/0xf0
>[  632.221610]  system_call+0x70/0x98
>
>[  632.221657] Reported by Kernel Concurrency Sanitizer on:
>[  632.221683] CPU: 1 PID: 7525 Comm: grub Kdump: loaded Not tainted 6.7.4-1.g9e758e0-default #1 openSUSE Tumbleweed (unreleased) b54db25b5c91e1f741a77b8c006738e22884ded0
>[  632.221728] Hardware name: IBM 8561 LT1 400 (z/VM 7.3.0)
>[  632.221762] ==================================================================
>[  635.470190] ==================================================================
>[  635.470237] BUG: KCSAN: data-race in rcu_all_qs / rcu_report_qs_rdp
>
>[  635.470278] write (marked) to 0x0000000170c54c15 of 1 bytes by interrupt on cpu 0:
>[  635.470307]  rcu_report_qs_rdp+0x144/0x228
>[  635.470339]  rcu_core+0x860/0xe00
>[  635.470367]  rcu_core_si+0x30/0x48
>[  635.470394]  __do_softirq+0x14c/0x410
>[  635.470422]  irq_exit_rcu+0xae/0xc8
>[  635.470446]  do_ext_irq+0xd8/0x120
>[  635.470473]  ext_int_handler+0xc4/0xf0
>[  635.470501]  delay_loop+0x90/0xd0
>[  635.470527]  __udelay+0x36/0x48
>[  635.470554]  kcsan_setup_watchpoint+0x21a/0x568
>[  635.470582]  delay_loop+0x90/0xd0
>[  635.470610]  __udelay+0x36/0x48
>[  635.470639]  kcsan_setup_watchpoint+0x21a/0x568
>[  635.470670]  rcu_all_qs+0x4e/0x1b0
>[  635.470701]  __cond_resched+0x2c/0x78
>[  635.470732]  dput+0x36/0x628
>[  635.470814]  terminate_walk+0x16a/0x270
>[  635.470850]  path_openat+0x1194/0x1c88
>[  635.470868]  do_filp_open+0x13c/0x228
>[  635.470887]  do_sys_openat2+0xd4/0x110
>[  635.470909]  do_sys_open+0x7a/0xc0
>[  635.470930]  __s390x_sys_openat+0x80/0xa0
>[  635.470952]  do_syscall+0x1c6/0x210
>[  635.470975]  __do_syscall+0xc8/0xf0
>[  635.470998]  system_call+0x70/0x98
>
>[  635.471037] read to 0x0000000170c54c15 of 1 bytes by task 8142 on cpu 0:
>[  635.471062]  rcu_all_qs+0x4e/0x1b0
>[  635.471088]  __cond_resched+0x2c/0x78
>[  635.471113]  dput+0x36/0x628
>[  635.471136]  terminate_walk+0x16a/0x270
>[  635.471162]  path_openat+0x1194/0x1c88
>[  635.471189]  do_filp_open+0x13c/0x228
>[  635.471217]  do_sys_openat2+0xd4/0x110
>[  635.471247]  do_sys_open+0x7a/0xc0
>[  635.471277]  __s390x_sys_openat+0x80/0xa0
>[  635.471337]  do_syscall+0x1c6/0x210
>[  635.471377]  __do_syscall+0xc8/0xf0
>[  635.471396]  system_call+0x70/0x98
>
>[  635.471425] Reported by Kernel Concurrency Sanitizer on:
>[  635.471442] CPU: 0 PID: 8142 Comm: xmllint Kdump: loaded Not tainted 6.7.4-1.g9e758e0-default #1 openSUSE Tumbleweed (unreleased) b54db25b5c91e1f741a77b8c006738e22884ded0
>[  635.471479] Hardware name: IBM 8561 LT1 400 (z/VM 7.3.0)
>[  635.471500] ==================================================================
>[  640.400215] ==================================================================
>[  640.400261] BUG: KCSAN: data-race in rcu_all_qs / rcu_report_qs_rdp
>
>[  640.400303] write (marked) to 0x0000000170c54c15 of 1 bytes by interrupt on cpu 0:
>[  640.400326]  rcu_report_qs_rdp+0x144/0x228
>[  640.400350]  rcu_core+0x860/0xe00
>[  640.400372]  rcu_core_si+0x30/0x48
>[  640.400396]  __do_softirq+0x14c/0x410
>[  640.400423]  irq_exit_rcu+0xae/0xc8
>[  640.400446]  do_ext_irq+0xd8/0x120
>[  640.400472]  ext_int_handler+0xc4/0xf0
>[  640.400498]  __tsan_read_range+0x2a/0x1a8
>[  640.400524]  delay_loop+0x90/0xd0
>[  640.400551]  delay_loop+0x90/0xd0
>[  640.400577]  __udelay+0x36/0x48
>[  640.400604]  kcsan_setup_watchpoint+0x21a/0x568
>[  640.400634]  delay_loop+0x90/0xd0
>[  640.400662]  __udelay+0x36/0x48
>[  640.400692]  kcsan_setup_watchpoint+0x21a/0x568
>[  640.400723]  rcu_all_qs+0x4e/0x1b0
>[  640.400810]  __cond_resched+0x2c/0x78
>[  640.400841]  kmem_cache_alloc+0x518/0x588
>[  640.400862]  vm_area_dup+0x46/0x208
>[  640.400879]  dup_mmap+0x488/0xe08
>[  640.400896]  copy_process+0x1a74/0x3130
>[  640.400915]  kernel_clone+0xc8/0x568
>[  640.400934]  __do_sys_clone+0xcc/0xe8
>[  640.400954]  __s390x_sys_clone+0x90/0xb0
>[  640.400975]  do_syscall+0x1c6/0x210
>[  640.400999]  __do_syscall+0xc8/0xf0
>[  640.401022]  system_call+0x70/0x98
>
>[  640.401063] read to 0x0000000170c54c15 of 1 bytes by task 8291 on cpu 0:
>[  640.401089]  rcu_all_qs+0x4e/0x1b0
>[  640.401116]  __cond_resched+0x2c/0x78
>[  640.401142]  kmem_cache_alloc+0x518/0x588
>[  640.401170]  vm_area_dup+0x46/0x208
>[  640.401197]  dup_mmap+0x488/0xe08
>[  640.401223]  copy_process+0x1a74/0x3130
>[  640.401251]  kernel_clone+0xc8/0x568
>[  640.401280]  __do_sys_clone+0xcc/0xe8
>[  640.401319]  __s390x_sys_clone+0x90/0xb0
>[  640.401340]  do_syscall+0x1c6/0x210
>[  640.401357]  __do_syscall+0xc8/0xf0
>[  640.401376]  system_call+0x70/0x98
>
>[  640.401407] Reported by Kernel Concurrency Sanitizer on:
>[  640.401425] CPU: 0 PID: 8291 Comm: grub Kdump: loaded Not tainted 6.7.4-1.g9e758e0-default #1 openSUSE Tumbleweed (unreleased) b54db25b5c91e1f741a77b8c006738e22884ded0
>[  640.401463] Hardware name: IBM 8561 LT1 400 (z/VM 7.3.0)
>[  640.401484] ==================================================================
>[  645.370188] ==================================================================
>[  645.370235] BUG: KCSAN: data-race in rcu_all_qs / rcu_report_qs_rdp
>
>[  645.370281] write (marked) to 0x0000000170c92c15 of 1 bytes by interrupt on cpu 2:
>[  645.370308]  rcu_report_qs_rdp+0x144/0x228
>[  645.370334]  rcu_core+0x860/0xe00
>[  645.370358]  rcu_core_si+0x30/0x48
>[  645.370383]  __do_softirq+0x14c/0x410
>[  645.370411]  irq_exit_rcu+0xae/0xc8
>[  645.370435]  do_ext_irq+0xd8/0x120
>[  645.370461]  ext_int_handler+0xc4/0xf0
>[  645.370488]  delay_loop+0x90/0xd0
>[  645.370514]  __udelay+0x36/0x48
>[  645.370540]  kcsan_setup_watchpoint+0x21a/0x568
>[  645.370568]  delay_loop+0x90/0xd0
>[  645.370596]  __udelay+0x36/0x48
>[  645.370624]  kcsan_setup_watchpoint+0x21a/0x568
>[  645.370654]  rcu_all_qs+0x4e/0x1b0
>[  645.370684]  __cond_resched+0x2c/0x78
>[  645.370714]  down_write+0x30/0xf0
>[  645.370765]  mmap_region+0x526/0x1210
>[  645.370782]  do_mmap+0x598/0x6b0
>[  645.370795]  vm_mmap_pgoff+0x112/0x208
>[  645.370811]  ksys_mmap_pgoff+0x26e/0x428
>[  645.370846]  __s390x_sys_old_mmap+0xf2/0x148
>[  645.370869]  do_syscall+0x1c6/0x210
>[  645.370890]  __do_syscall+0xc8/0xf0
>[  645.370912]  system_call+0x70/0x98
>
>[  645.370949] read to 0x0000000170c92c15 of 1 bytes by task 8882 on cpu 2:
>[  645.370973]  rcu_all_qs+0x4e/0x1b0
>[  645.370998]  __cond_resched+0x2c/0x78
>[  645.371022]  down_write+0x30/0xf0
>[  645.371047]  mmap_region+0x526/0x1210
>[  645.371071]  do_mmap+0x598/0x6b0
>[  645.371095]  vm_mmap_pgoff+0x112/0x208
>[  645.371121]  ksys_mmap_pgoff+0x26e/0x428
>[  645.371151]  __s390x_sys_old_mmap+0xf2/0x148
>[  645.371183]  do_syscall+0x1c6/0x210
>[  645.371212]  __do_syscall+0xc8/0xf0
>[  645.371242]  system_call+0x70/0x98
>
>[  645.371287] Reported by Kernel Concurrency Sanitizer on:
>[  645.371301] CPU: 2 PID: 8882 Comm: xmllint Kdump: loaded Not tainted 6.7.4-1.g9e758e0-default #1 openSUSE Tumbleweed (unreleased) b54db25b5c91e1f741a77b8c006738e22884ded0
>[  645.371337] Hardware name: IBM 8561 LT1 400 (z/VM 7.3.0)
>[  645.371356] ==================================================================
>[  653.312321] ==================================================================
>[  653.313148] BUG: KCSAN: data-race in btrfs_update_delayed_refs_rsv [btrfs] / btrfs_use_block_rsv [btrfs]
>
>[  653.314755] read to 0x000000017f5871b8 of 8 bytes by task 7519 on cpu 0:
>[  653.314779]  btrfs_use_block_rsv+0xe4/0x2f8 [btrfs]
>[  653.315606]  btrfs_alloc_tree_block+0xdc/0x998 [btrfs]
>[  653.316421]  btrfs_force_cow_block+0x220/0xe38 [btrfs]
>[  653.317242]  btrfs_cow_block+0x1ac/0x568 [btrfs]
>[  653.318060]  btrfs_search_slot+0xda2/0x19b8 [btrfs]
>[  653.318879]  btrfs_del_csums+0x1dc/0x798 [btrfs]
>[  653.319702]  __btrfs_free_extent.isra.0+0xc24/0x2028 [btrfs]
>[  653.320538]  __btrfs_run_delayed_refs+0xd3c/0x2390 [btrfs]
>[  653.321340]  btrfs_run_delayed_refs+0xae/0x290 [btrfs]
>[  653.322140]  flush_space+0x5e4/0x718 [btrfs]
>[  653.322958]  btrfs_preempt_reclaim_metadata_space+0x102/0x2f8 [btrfs]
>[  653.323781]  process_one_work+0x3b6/0x838
>[  653.323800]  worker_thread+0x75e/0xb10
>[  653.323817]  kthread+0x21a/0x230
>[  653.323836]  __ret_from_fork+0x6c/0xb8
>[  653.323855]  ret_from_fork+0xa/0x30
>
>[  653.323887] write to 0x000000017f5871b8 of 8 bytes by task 576 on cpu 3:
>[  653.323906]  btrfs_update_delayed_refs_rsv+0x1a4/0x250 [btrfs]
>[  653.324699]  btrfs_add_delayed_data_ref+0x468/0x6d8 [btrfs]
>[  653.325494]  btrfs_free_extent+0x76/0x120 [btrfs]
>[  653.326280]  __btrfs_mod_ref+0x6a8/0x6b8 [btrfs]
>[  653.327064]  btrfs_dec_ref+0x50/0x70 [btrfs]
>[  653.327849]  walk_up_proc+0x236/0xa50 [btrfs]
>[  653.328633]  walk_up_tree+0x21c/0x448 [btrfs]
>[  653.329418]  btrfs_drop_snapshot+0x802/0x1328 [btrfs]
>[  653.330205]  btrfs_clean_one_deleted_snapshot+0x184/0x238 [btrfs]
>[  653.330995]  cleaner_kthread+0x2b0/0x2f0 [btrfs]
>[  653.331781]  kthread+0x21a/0x230
>[  653.331800]  __ret_from_fork+0x6c/0xb8
>[  653.331818]  ret_from_fork+0xa/0x30
>
>[  653.331846] Reported by Kernel Concurrency Sanitizer on:
>[  653.331862] CPU: 3 PID: 576 Comm: btrfs-cleaner Kdump: loaded Not tainted 6.7.4-1.g9e758e0-default #1 openSUSE Tumbleweed (unreleased) b54db25b5c91e1f741a77b8c006738e22884ded0
>[  653.331897] Hardware name: IBM 8561 LT1 400 (z/VM 7.3.0)
>[  653.331913] ==================================================================
>[  653.334770] ==================================================================
>[  653.334800] BUG: KCSAN: data-race in rcu_all_qs / rcu_report_qs_rdp
>
>[  653.334836] write (marked) to 0x0000000170c92c15 of 1 bytes by interrupt on cpu 2:
>[  653.334856]  rcu_report_qs_rdp+0x144/0x228
>[  653.334876]  rcu_core+0x860/0xe00
>[  653.334893]  rcu_core_si+0x30/0x48
>[  653.334911]  __do_softirq+0x14c/0x410
>[  653.334931]  irq_exit_rcu+0xae/0xc8
>[  653.334947]  do_ext_irq+0xd8/0x120
>[  653.334966]  ext_int_handler+0xc4/0xf0
>[  653.334985]  delay_loop+0x90/0xd0
>[  653.335002]  __udelay+0x36/0x48
>[  653.335019]  kcsan_setup_watchpoint+0x21a/0x568
>[  653.335038]  delay_loop+0x90/0xd0
>[  653.335056]  __udelay+0x36/0x48
>[  653.335073]  kcsan_setup_watchpoint+0x21a/0x568
>[  653.335092]  delay_loop+0x7c/0xd0
>[  653.335110]  __udelay+0x36/0x48
>[  653.335127]  kcsan_setup_watchpoint+0x21a/0x568
>[  653.335147]  rcu_all_qs+0x4e/0x1b0
>[  653.335166]  __cond_resched+0x2c/0x78
>[  653.335185]  __alloc_pages+0x1d8/0x330
>[  653.335203]  alloc_pages_mpol+0x17c/0x380
>[  653.335224]  vma_alloc_folio+0x7e/0x110
>[  653.335242]  do_wp_page+0x5ec/0x1b90
>[  653.335260]  __handle_mm_fault+0x10c0/0x23b0
>[  653.335278]  handle_mm_fault+0x278/0x458
>[  653.335296]  do_exception+0x216/0x930
>[  653.335314]  do_protection_exception+0xca/0x178
>[  653.335333]  __do_pgm_check+0xf4/0x188
>[  653.335352]  pgm_check_handler+0x116/0x168
>
>[  653.335380] read to 0x0000000170c92c15 of 1 bytes by task 9483 on cpu 2:
>[  653.335397]  rcu_all_qs+0x4e/0x1b0
>[  653.335415]  __cond_resched+0x2c/0x78
>[  653.335430]  __alloc_pages+0x1d8/0x330
>[  653.335445]  alloc_pages_mpol+0x17c/0x380
>[  653.335463]  vma_alloc_folio+0x7e/0x110
>[  653.335481]  do_wp_page+0x5ec/0x1b90
>[  653.335497]  __handle_mm_fault+0x10c0/0x23b0
>[  653.335515]  handle_mm_fault+0x278/0x458
>[  653.335532]  do_exception+0x216/0x930
>[  653.339006]  do_protection_exception+0xca/0x178
>[  653.339044]  __do_pgm_check+0xf4/0x188
>[  653.339084]  pgm_check_handler+0x116/0x168
>
>[  653.339118] Reported by Kernel Concurrency Sanitizer on:
>[  653.339135] CPU: 2 PID: 9483 Comm: grub Kdump: loaded Not tainted 6.7.4-1.g9e758e0-default #1 openSUSE Tumbleweed (unreleased) b54db25b5c91e1f741a77b8c006738e22884ded0
>[  653.339174] Hardware name: IBM 8561 LT1 400 (z/VM 7.3.0)
>[  653.339196] ==================================================================
>[  653.958247] ==================================================================
>[  653.958288] BUG: KCSAN: data-race in arch_vcpu_is_preempted+0x4a/0xe0
>
>[  653.958325] race at unknown origin, with read to 0x000000007fffc288 of 8 bytes by task 723 on cpu 3:
>[  653.958351]  arch_vcpu_is_preempted+0x4a/0xe0
>[  653.958373]  mutex_spin_on_owner+0xb4/0x170
>[  653.958400]  __mutex_lock.constprop.0+0x760/0xfc8
>[  653.958429]  __mutex_lock_slowpath+0x38/0x50
>[  653.958455]  mutex_lock+0xb4/0xc8
>[  653.958480]  add_to_free_space_tree+0xc8/0x218 [btrfs]
>[  653.959481]  __btrfs_free_extent.isra.0+0xc98/0x2028 [btrfs]
>[  653.960287]  __btrfs_run_delayed_refs+0xd3c/0x2390 [btrfs]
>[  653.961098]  btrfs_run_delayed_refs+0xae/0x290 [btrfs]
>[  653.961905]  flush_space+0x1c6/0x718 [btrfs]
>[  653.962715]  btrfs_async_reclaim_metadata_space+0x180/0x340 [btrfs]
>[  653.963528]  process_one_work+0x3b6/0x838
>[  653.963571]  worker_thread+0x75e/0xb10
>[  653.963588]  kthread+0x21a/0x230
>[  653.963608]  __ret_from_fork+0x6c/0xb8
>[  653.963639]  ret_from_fork+0xa/0x30
>
>[  653.963672] value changed: 0x000000000000000c -> 0x0000000000000028
>
>[  653.963705] Reported by Kernel Concurrency Sanitizer on:
>[  653.963725] CPU: 3 PID: 723 Comm: kworker/u132:3 Kdump: loaded Not tainted 6.7.4-1.g9e758e0-default #1 openSUSE Tumbleweed (unreleased) b54db25b5c91e1f741a77b8c006738e22884ded0
>[  653.963768] Hardware name: IBM 8561 LT1 400 (z/VM 7.3.0)
>[  653.963793] Workqueue: events_unbound btrfs_async_reclaim_metadata_space [btrfs]
>[  653.964599] ==================================================================
>[  657.670188] ==================================================================
>[  657.670235] BUG: KCSAN: data-race in rcu_all_qs / rcu_report_qs_rdp
>
>[  657.670284] write (marked) to 0x0000000170cb1c15 of 1 bytes by interrupt on cpu 3:
>[  657.670314]  rcu_report_qs_rdp+0x144/0x228
>[  657.670344]  rcu_core+0x860/0xe00
>[  657.670373]  rcu_core_si+0x30/0x48
>[  657.670402]  __do_softirq+0x14c/0x410
>[  657.670436]  irq_exit_rcu+0xae/0xc8
>[  657.670463]  do_ext_irq+0xd8/0x120
>[  657.670492]  ext_int_handler+0xc4/0xf0
>[  657.670523]  __tsan_read_range+0x96/0x1a8
>[  657.670553]  delay_loop+0x7c/0xd0
>[  657.670584]  __udelay+0x36/0x48
>[  657.670613]  kcsan_setup_watchpoint+0x21a/0x568
>[  657.670643]  delay_loop+0x7c/0xd0
>[  657.670675]  __udelay+0x36/0x48
>[  657.670707]  kcsan_setup_watchpoint+0x21a/0x568
>[  657.670741]  delay_loop+0x7c/0xd0
>[  657.670776]  __udelay+0x36/0x48
>[  657.670819]  kcsan_setup_watchpoint+0x21a/0x568
>[  657.670837]  rcu_all_qs+0x4e/0x1b0
>[  657.670863]  __cond_resched+0x2c/0x78
>[  657.670882]  kmem_cache_alloc_lru+0x55c/0x688
>[  657.670908]  alloc_inode+0xac/0x160
>[  657.670929]  new_inode_pseudo+0x34/0xa8
>[  657.670951]  create_pipe_files+0x56/0x358
>[  657.670978]  do_pipe2+0x4c/0x158
>[  657.671003]  __s390x_sys_pipe2+0x54/0x70
>[  657.671030]  do_syscall+0x1c6/0x210
>[  657.671056]  __do_syscall+0xc8/0xf0
>[  657.671082]  system_call+0x70/0x98
>
>[  657.671130] read to 0x0000000170cb1c15 of 1 bytes by task 9572 on cpu 3:
>[  657.671159]  rcu_all_qs+0x4e/0x1b0
>[  657.671189]  __cond_resched+0x2c/0x78
>[  657.671218]  kmem_cache_alloc_lru+0x55c/0x688
>[  657.671250]  alloc_inode+0xac/0x160
>[  657.671280]  new_inode_pseudo+0x34/0xa8
>[  657.671311]  create_pipe_files+0x56/0x358
>[  657.671347]  do_pipe2+0x4c/0x158
>[  657.671384]  __s390x_sys_pipe2+0x54/0x70
>[  657.671406]  do_syscall+0x1c6/0x210
>[  657.671425]  __do_syscall+0xc8/0xf0
>[  657.671446]  system_call+0x70/0x98
>
>[  657.671480] Reported by Kernel Concurrency Sanitizer on:
>[  657.671501] CPU: 3 PID: 9572 Comm: grub Kdump: loaded Not tainted 6.7.4-1.g9e758e0-default #1 openSUSE Tumbleweed (unreleased) b54db25b5c91e1f741a77b8c006738e22884ded0
>[  657.671544] Hardware name: IBM 8561 LT1 400 (z/VM 7.3.0)
>[  657.671568] ==================================================================
>[  657.864407] ==================================================================
>[  657.864445] BUG: KCSAN: data-race in arch_vcpu_is_preempted+0x4a/0xe0
>
>[  657.864482] race at unknown origin, with read to 0x0000000000424288 of 8 bytes by task 723 on cpu 0:
>[  657.864508]  arch_vcpu_is_preempted+0x4a/0xe0
>[  657.864531]  mutex_spin_on_owner+0xb4/0x170
>[  657.864559]  __mutex_lock.constprop.0+0x760/0xfc8
>[  657.864588]  __mutex_lock_slowpath+0x38/0x50
>[  657.864615]  mutex_lock+0xb4/0xc8
>[  657.864639]  add_to_free_space_tree+0xc8/0x218 [btrfs]
>[  657.865635]  __btrfs_free_extent.isra.0+0xc98/0x2028 [btrfs]
>[  657.866441]  __btrfs_run_delayed_refs+0xd3c/0x2390 [btrfs]
>[  657.867266]  btrfs_run_delayed_refs+0xae/0x290 [btrfs]
>[  657.868097]  flush_space+0x1c6/0x718 [btrfs]
>[  657.868929]  btrfs_async_reclaim_metadata_space+0x180/0x340 [btrfs]
>[  657.869765]  process_one_work+0x3b6/0x838
>[  657.869831]  worker_thread+0x75e/0xb10
>[  657.869850]  kthread+0x21a/0x230
>[  657.869872]  __ret_from_fork+0x6c/0xb8
>[  657.869893]  ret_from_fork+0xa/0x30
>
>[  657.869929] value changed: 0x000000000000000c -> 0x0000000000000028
>
>[  657.869965] Reported by Kernel Concurrency Sanitizer on:
>[  657.869986] CPU: 0 PID: 723 Comm: kworker/u132:3 Kdump: loaded Not tainted 6.7.4-1.g9e758e0-default #1 openSUSE Tumbleweed (unreleased) b54db25b5c91e1f741a77b8c006738e22884ded0
>[  657.870031] Hardware name: IBM 8561 LT1 400 (z/VM 7.3.0)
>[  657.870058] Workqueue: events_unbound btrfs_async_reclaim_metadata_space [btrfs]
>[  657.870915] ==================================================================
>[  662.623578] ==================================================================
>[  662.623626] BUG: KCSAN: data-race in tick_sched_do_timer / tick_sched_do_timer
>
>[  662.623676] read to 0x000000006ee33bf8 of 4 bytes by interrupt on cpu 0:
>[  662.623704]  tick_sched_do_timer+0x4c/0x148
>[  662.623731]  tick_nohz_highres_handler+0x6e/0x108
>[  662.623761]  __hrtimer_run_queues+0x2d2/0x4d8
>[  662.623790]  hrtimer_interrupt+0x26a/0x528
>[  662.623819]  clock_comparator_work+0x74/0x90
>[  662.623851]  do_IRQ+0x8a/0xa8
>[  662.623882]  do_irq_async+0x7e/0x108
>[  662.623914]  do_ext_irq+0xd2/0x120
>[  662.623948]  ext_int_handler+0xc4/0xf0
>[  662.623982]  delay_loop+0x6a/0xd0
>[  662.624015]  delay_loop+0xa0/0xd0
>[  662.624048]  __udelay+0x36/0x48
>[  662.624081]  kcsan_setup_watchpoint+0x21a/0x568
>[  662.624118]  delay_loop+0x90/0xd0
>[  662.624153]  __udelay+0x36/0x48
>[  662.624197]  kcsan_setup_watchpoint+0x21a/0x568
>[  662.624218]  delay_loop+0x7c/0xd0
>[  662.624249]  __udelay+0x36/0x48
>[  662.624289]  kcsan_setup_watchpoint+0x21a/0x568
>[  662.624314]  delay_loop+0x7c/0xd0
>[  662.624339]  __udelay+0x36/0x48
>[  662.624363]  kcsan_setup_watchpoint+0x21a/0x568
>[  662.624396]  btrfs_qgroup_trace_extent_nolock+0xa8/0x210 [btrfs]
>[  662.625471]  btrfs_qgroup_trace_extent+0x11e/0x188 [btrfs]
>[  662.626362]  btrfs_qgroup_trace_leaf_items+0x198/0x1b8 [btrfs]
>[  662.627254]  btrfs_qgroup_trace_subtree+0x50a/0x938 [btrfs]
>[  662.628141]  do_walk_down+0xc54/0xe68 [btrfs]
>[  662.629014]  walk_down_tree+0x176/0x240 [btrfs]
>[  662.629885]  btrfs_drop_snapshot+0x7de/0x1328 [btrfs]
>[  662.630769]  btrfs_clean_one_deleted_snapshot+0x184/0x238 [btrfs]
>[  662.631651]  cleaner_kthread+0x2b0/0x2f0 [btrfs]
>[  662.632535]  kthread+0x21a/0x230
>[  662.632574]  __ret_from_fork+0x6c/0xb8
>[  662.632622]  ret_from_fork+0xa/0x30
>
>[  662.632652] write to 0x000000006ee33bf8 of 4 bytes by interrupt on cpu 2:
>[  662.632673]  tick_sched_do_timer+0x136/0x148
>[  662.632693]  tick_nohz_highres_handler+0x6e/0x108
>[  662.632715]  __hrtimer_run_queues+0x2d2/0x4d8
>[  662.632735]  hrtimer_interrupt+0x26a/0x528
>[  662.632755]  clock_comparator_work+0x74/0x90
>[  662.632775]  do_IRQ+0x8a/0xa8
>[  662.632794]  do_irq_async+0x7e/0x108
>[  662.632815]  do_ext_irq+0xd2/0x120
>[  662.632834]  ext_int_handler+0xc4/0xf0
>[  662.632855]  __tsan_read_range+0xc/0x1a8
>[  662.632874]  delay_loop+0x7c/0xd0
>[  662.632893]  __udelay+0x36/0x48
>[  662.632911]  kcsan_setup_watchpoint+0x21a/0x568
>[  662.632931]  delay_loop+0x90/0xd0
>[  662.632949]  __udelay+0x36/0x48
>[  662.632967]  kcsan_setup_watchpoint+0x21a/0x568
>[  662.632987]  delay_loop+0x90/0xd0
>[  662.633006]  __udelay+0x36/0x48
>[  662.633024]  kcsan_setup_watchpoint+0x21a/0x568
>[  662.633045]  find_extent_buffer_nolock+0x3c/0xf0 [btrfs]
>[  662.633909]  find_extent_buffer+0x3c/0x150 [btrfs]
>[  662.634843]  read_block_for_search+0x26c/0x538 [btrfs]
>[  662.635699]  btrfs_search_slot+0x6b8/0x19b8 [btrfs]
>[  662.636557]  btrfs_del_csums+0x1dc/0x798 [btrfs]
>[  662.637420]  __btrfs_free_extent.isra.0+0xc24/0x2028 [btrfs]
>[  662.638282]  __btrfs_run_delayed_refs+0xd3c/0x2390 [btrfs]
>[  662.639145]  btrfs_run_delayed_refs+0xae/0x290 [btrfs]
>[  662.640015]  flush_space+0x5e4/0x718 [btrfs]
>[  662.640903]  btrfs_preempt_reclaim_metadata_space+0x102/0x2f8 [btrfs]
>[  662.641791]  process_one_work+0x3b6/0x838
>[  662.641822]  worker_thread+0x75e/0xb10
>[  662.641852]  kthread+0x21a/0x230
>[  662.641886]  __ret_from_fork+0x6c/0xb8
>[  662.641919]  ret_from_fork+0xa/0x30
>
>[  662.641979] Reported by Kernel Concurrency Sanitizer on:
>[  662.642013] CPU: 2 PID: 35 Comm: kworker/u130:0 Kdump: loaded Not tainted 6.7.4-1.g9e758e0-default #1 openSUSE Tumbleweed (unreleased) b54db25b5c91e1f741a77b8c006738e22884ded0
>[  662.642074] Hardware name: IBM 8561 LT1 400 (z/VM 7.3.0)
>[  662.642094] Workqueue: events_unbound btrfs_preempt_reclaim_metadata_space [btrfs]
>[  662.642974] ==================================================================
>[  663.518363] ==================================================================
>[  663.518402] BUG: KCSAN: data-race in arch_vcpu_is_preempted+0x4a/0xe0
>
>[  663.518439] race at unknown origin, with read to 0x000000007fffc288 of 8 bytes by task 4419 on cpu 1:
>[  663.518466]  arch_vcpu_is_preempted+0x4a/0xe0
>[  663.518488]  rwsem_spin_on_owner+0x84/0x178
>[  663.518515]  rwsem_down_write_slowpath+0xfc/0xd60
>[  663.518543]  down_write+0xd8/0xf0
>[  663.518567]  __btrfs_tree_lock+0x3e/0xd8 [btrfs]
>[  663.519445]  btrfs_tree_lock+0x38/0x50 [btrfs]
>[  663.520243]  btrfs_search_slot+0xde8/0x19b8 [btrfs]
>[  663.521033]  lookup_inline_extent_backref+0x25c/0xa80 [btrfs]
>[  663.521827]  lookup_extent_backref+0x82/0x140 [btrfs]
>[  663.522620]  __btrfs_free_extent.isra.0+0x15c/0x2028 [btrfs]
>[  663.523416]  __btrfs_run_delayed_refs+0xd3c/0x2390 [btrfs]
>[  663.524212]  btrfs_run_delayed_refs+0xae/0x290 [btrfs]
>[  663.525020]  flush_space+0x1c6/0x718 [btrfs]
>[  663.525807]  btrfs_async_reclaim_metadata_space+0x180/0x340 [btrfs]
>[  663.526595]  process_one_work+0x3b6/0x838
>[  663.526615]  worker_thread+0x75e/0xb10
>[  663.526634]  kthread+0x21a/0x230
>[  663.526656]  __ret_from_fork+0x6c/0xb8
>[  663.526677]  ret_from_fork+0xa/0x30
>
>[  663.526715] value changed: 0x000000000000000c -> 0x0000000000000028
>
>[  663.526753] Reported by Kernel Concurrency Sanitizer on:
>[  663.526775] CPU: 1 PID: 4419 Comm: kworker/u129:5 Kdump: loaded Not tainted 6.7.4-1.g9e758e0-default #1 openSUSE Tumbleweed (unreleased) b54db25b5c91e1f741a77b8c006738e22884ded0
>[  663.526818] Hardware name: IBM 8561 LT1 400 (z/VM 7.3.0)
>[  663.526845] Workqueue: events_unbound btrfs_async_reclaim_metadata_space [btrfs]
>[  663.527653] ==================================================================
>[  663.700248] ==================================================================
>[  663.700295] BUG: KCSAN: data-race in rcu_all_qs / rcu_report_qs_rdp
>
>[  663.700340] write (marked) to 0x0000000170cb1c15 of 1 bytes by interrupt on cpu 3:
>[  663.700367]  rcu_report_qs_rdp+0x144/0x228
>[  663.700394]  rcu_core+0x860/0xe00
>[  663.700419]  rcu_core_si+0x30/0x48
>[  663.700446]  __do_softirq+0x14c/0x410
>[  663.700478]  irq_exit_rcu+0xae/0xc8
>[  663.700504]  do_ext_irq+0xd8/0x120
>[  663.700535]  ext_int_handler+0xc4/0xf0
>[  663.700568]  __tsan_read_range+0xa2/0x1a8
>[  663.700599]  delay_loop+0x90/0xd0
>[  663.700629]  __udelay+0x36/0x48
>[  663.700659]  kcsan_setup_watchpoint+0x21a/0x568
>[  663.700692]  delay_loop+0x7c/0xd0
>[  663.700724]  __udelay+0x36/0x48
>[  663.700758]  kcsan_setup_watchpoint+0x21a/0x568
>[  663.700794]  rcu_all_qs+0x4e/0x1b0
>[  663.700831]  __cond_resched+0x2c/0x78
>[  663.700878]  do_wp_page+0xc78/0x1b90
>[  663.700898]  __handle_mm_fault+0x10c0/0x23b0
>[  663.700931]  handle_mm_fault+0x278/0x458
>[  663.700951]  do_exception+0x216/0x930
>[  663.700972]  do_protection_exception+0xca/0x178
>[  663.700995]  __do_pgm_check+0xf4/0x188
>[  663.701019]  pgm_check_handler+0x116/0x168
>
>[  663.701061] read to 0x0000000170cb1c15 of 1 bytes by task 9857 on cpu 3:
>[  663.701085]  rcu_all_qs+0x4e/0x1b0
>[  663.701114]  __cond_resched+0x2c/0x78
>[  663.701141]  do_wp_page+0xc78/0x1b90
>[  663.701168]  __handle_mm_fault+0x10c0/0x23b0
>[  663.701199]  handle_mm_fault+0x278/0x458
>[  663.701229]  do_exception+0x216/0x930
>[  663.701258]  do_protection_exception+0xca/0x178
>[  663.701290]  __do_pgm_check+0xf4/0x188
>[  663.701323]  pgm_check_handler+0x116/0x168
>
>[  663.701380] Reported by Kernel Concurrency Sanitizer on:
>[  663.701415] CPU: 3 PID: 9857 Comm: grub Kdump: loaded Not tainted 6.7.4-1.g9e758e0-default #1 openSUSE Tumbleweed (unreleased) b54db25b5c91e1f741a77b8c006738e22884ded0
>[  663.701453] Hardware name: IBM 8561 LT1 400 (z/VM 7.3.0)
>[  663.701474] ==================================================================
>[  664.486919] ==================================================================
>[  664.486968] BUG: KCSAN: data-race in __hrtimer_run_queues / hrtimer_active
>
>[  664.487013] read to 0x0000000170c43f18 of 8 bytes by interrupt on cpu 3:
>[  664.487040]  hrtimer_active+0x90/0x110
>[  664.487065]  task_tick_fair+0x52/0x3f0
>[  664.487096]  scheduler_tick+0xe6/0x460
>[  664.487126]  update_process_times+0x104/0x120
>[  664.487160]  tick_sched_handle+0x8e/0xd8
>[  664.487192]  tick_nohz_highres_handler+0x82/0x108
>[  664.487225]  __hrtimer_run_queues+0x2d2/0x4d8
>[  664.487258]  hrtimer_interrupt+0x26a/0x528
>[  664.487291]  clock_comparator_work+0x74/0x90
>[  664.487324]  do_IRQ+0x8a/0xa8
>[  664.487360]  do_irq_async+0x7e/0x108
>[  664.487396]  do_ext_irq+0xd2/0x120
>[  664.487434]  ext_int_handler+0xc4/0xf0
>[  664.487475]  __tsan_read8+0x94/0x1a0
>[  664.487511]  delay_loop+0xa0/0xd0
>[  664.487577]  __udelay+0x36/0x48
>[  664.487600]  kcsan_setup_watchpoint+0x21a/0x568
>[  664.487624]  delay_loop+0x7c/0xd0
>[  664.487647]  __udelay+0x36/0x48
>[  664.487673]  kcsan_setup_watchpoint+0x21a/0x568
>[  664.487700]  check_prev_ino.part.0+0x70/0x1b0 [btrfs]
>[  664.488681]  __btrfs_check_leaf+0xd50/0x27e8 [btrfs]
>[  664.489607]  btrfs_check_leaf+0x38/0x60 [btrfs]
>[  664.490538]  btrfs_validate_extent_buffer+0x3a8/0x888 [btrfs]
>[  664.491460]  extent_buffer_read_end_io+0x260/0x280 [btrfs]
>[  664.492381]  __btrfs_bio_end_io+0x96/0xf0 [btrfs]
>[  664.493291]  btrfs_orig_bbio_end_io+0xdc/0x180 [btrfs]
>[  664.494195]  btrfs_end_bio_work+0x92/0xa8 [btrfs]
>[  664.495104]  process_one_work+0x3b6/0x838
>[  664.495141]  worker_thread+0x75e/0xb10
>[  664.495176]  kthread+0x21a/0x230
>[  664.495215]  __ret_from_fork+0x6c/0xb8
>[  664.495250]  ret_from_fork+0xa/0x30
>
>[  664.495324] write to 0x0000000170c43f18 of 8 bytes by interrupt on cpu 0:
>[  664.495347]  __hrtimer_run_queues+0x214/0x4d8
>[  664.495370]  hrtimer_interrupt+0x26a/0x528
>[  664.495394]  clock_comparator_work+0x74/0x90
>[  664.495419]  do_IRQ+0x8a/0xa8
>[  664.495445]  do_irq_async+0x7e/0x108
>[  664.495474]  do_ext_irq+0xd2/0x120
>[  664.495502]  ext_int_handler+0xc4/0xf0
>[  664.495532]  __tsan_read_range+0x4a/0x1a8
>[  664.495560]  delay_loop+0x7c/0xd0
>[  664.495589]  __udelay+0x36/0x48
>[  664.495617]  kcsan_setup_watchpoint+0x21a/0x568
>[  664.495649]  delay_loop+0x90/0xd0
>[  664.495679]  __udelay+0x36/0x48
>[  664.495708]  kcsan_setup_watchpoint+0x21a/0x568
>[  664.495741]  delay_loop+0x7c/0xd0
>[  664.495773]  __udelay+0x36/0x48
>[  664.495814]  kcsan_setup_watchpoint+0x21a/0x568
>[  664.495855]  delay_loop+0x7c/0xd0
>[  664.495895]  __udelay+0x36/0x48
>[  664.495938]  kcsan_setup_watchpoint+0x21a/0x568
>[  664.495987]  delay_loop+0x7c/0xd0
>[  664.496007]  __udelay+0x36/0x48
>[  664.496029]  kcsan_setup_watchpoint+0x21a/0x568
>[  664.496052]  delay_loop+0x90/0xd0
>[  664.496075]  __udelay+0x36/0x48
>[  664.496098]  kcsan_setup_watchpoint+0x21a/0x568
>[  664.496124]  submit_bio_noacct+0x730/0xc80
>[  664.496150]  submit_bio+0xe6/0x120
>[  664.496174]  btrfs_submit_dev_bio+0x15e/0x438 [btrfs]
>[  664.497082]  __btrfs_submit_bio+0x34a/0x3e0 [btrfs]
>[  664.497991]  btrfs_submit_bio+0x314/0xb10 [btrfs]
>[  664.498903]  read_extent_buffer_pages+0x29e/0x390 [btrfs]
>[  664.499814]  btrfs_read_extent_buffer+0xbe/0x2e8 [btrfs]
>[  664.500723]  read_tree_block+0x82/0x138 [btrfs]
>[  664.501641]  read_block_for_search+0x3d0/0x538 [btrfs]
>[  664.502544]  btrfs_search_slot+0x6b8/0x19b8 [btrfs]
>[  664.503443]  btrfs_del_csums+0x1dc/0x798 [btrfs]
>[  664.504354]  __btrfs_free_extent.isra.0+0xc24/0x2028 [btrfs]
>[  664.505278]  __btrfs_run_delayed_refs+0xd3c/0x2390 [btrfs]
>[  664.506173]  btrfs_run_delayed_refs+0xae/0x290 [btrfs]
>[  664.507081]  flush_space+0x5e4/0x718 [btrfs]
>[  664.507988]  btrfs_preempt_reclaim_metadata_space+0x102/0x2f8 [btrfs]
>[  664.508903]  process_one_work+0x3b6/0x838
>[  664.508929]  worker_thread+0x75e/0xb10
>[  664.508955]  kthread+0x21a/0x230
>[  664.508985]  __ret_from_fork+0x6c/0xb8
>[  664.509013]  ret_from_fork+0xa/0x30
>
>[  664.509063] Reported by Kernel Concurrency Sanitizer on:
>[  664.509091] CPU: 0 PID: 35 Comm: kworker/u130:0 Kdump: loaded Not tainted 6.7.4-1.g9e758e0-default #1 openSUSE Tumbleweed (unreleased) b54db25b5c91e1f741a77b8c006738e22884ded0
>[  664.509142] Hardware name: IBM 8561 LT1 400 (z/VM 7.3.0)
>[  664.509176] Workqueue: events_unbound btrfs_preempt_reclaim_metadata_space [btrfs]
>[  664.510117] ==================================================================
>[  666.715803] ==================================================================
>[  666.715841] BUG: KCSAN: data-race in arch_vcpu_is_preempted+0x4a/0xe0
>
>[  666.715879] race at unknown origin, with read to 0x0000000000426288 of 8 bytes by task 35 on cpu 2:
>[  666.715907]  arch_vcpu_is_preempted+0x4a/0xe0
>[  666.715932]  osq_lock+0x17c/0x330
>[  666.715959]  rwsem_down_write_slowpath+0xd0/0xd60
>[  666.715989]  down_write+0xd8/0xf0
>[  666.716014]  __btrfs_tree_lock+0x3e/0xd8 [btrfs]
>[  666.717061]  btrfs_tree_lock+0x38/0x50 [btrfs]
>[  666.717911]  btrfs_lock_root_node+0x56/0x88 [btrfs]
>[  666.718767]  btrfs_search_slot+0x268/0x19b8 [btrfs]
>[  666.719604]  lookup_inline_extent_backref+0x25c/0xa80 [btrfs]
>[  666.720441]  lookup_extent_backref+0x82/0x140 [btrfs]
>[  666.721260]  __btrfs_free_extent.isra.0+0x15c/0x2028 [btrfs]
>[  666.722057]  __btrfs_run_delayed_refs+0xd3c/0x2390 [btrfs]
>[  666.722878]  btrfs_run_delayed_refs+0xae/0x290 [btrfs]
>[  666.723683]  flush_space+0x5e4/0x718 [btrfs]
>[  666.724485]  btrfs_preempt_reclaim_metadata_space+0x102/0x2f8 [btrfs]
>[  666.725298]  process_one_work+0x3b6/0x838
>[  666.725321]  worker_thread+0x75e/0xb10
>[  666.725343]  kthread+0x21a/0x230
>[  666.725367]  __ret_from_fork+0x6c/0xb8
>[  666.725390]  ret_from_fork+0xa/0x30
>
>[  666.725434] value changed: 0x000000000000000c -> 0x0000000000000028
>
>[  666.725477] Reported by Kernel Concurrency Sanitizer on:
>[  666.725501] CPU: 2 PID: 35 Comm: kworker/u130:0 Kdump: loaded Not tainted 6.7.4-1.g9e758e0-default #1 openSUSE Tumbleweed (unreleased) b54db25b5c91e1f741a77b8c006738e22884ded0
>[  666.725546] Hardware name: IBM 8561 LT1 400 (z/VM 7.3.0)
>[  666.725576] Workqueue: events_unbound btrfs_preempt_reclaim_metadata_space [btrfs]
>[  666.726394] ==================================================================
>[  668.377602] ==================================================================
>[  668.377649] BUG: KCSAN: data-race in osq_lock / osq_unlock
>
>[  668.377693] write (marked) to 0x0000000170c73a00 of 8 bytes by task 9466 on cpu 0:
>[  668.377720]  osq_lock+0x134/0x330
>[  668.377745]  rwsem_down_write_slowpath+0xd0/0xd60
>[  668.377772]  down_write+0xd8/0xf0
>[  668.377796]  __btrfs_tree_lock+0x3e/0xd8 [btrfs]
>[  668.378848]  btrfs_tree_lock+0x38/0x50 [btrfs]
>[  668.379688]  btrfs_lock_root_node+0x56/0x88 [btrfs]
>[  668.380550]  btrfs_search_slot+0x268/0x19b8 [btrfs]
>[  668.381397]  lookup_inline_extent_backref+0x25c/0xa80 [btrfs]
>[  668.382217]  lookup_extent_backref+0x82/0x140 [btrfs]
>[  668.383050]  __btrfs_free_extent.isra.0+0x15c/0x2028 [btrfs]
>[  668.383879]  __btrfs_run_delayed_refs+0xb3e/0x2390 [btrfs]
>[  668.384711]  btrfs_run_delayed_refs+0xae/0x290 [btrfs]
>[  668.385546]  flush_space+0x1c6/0x718 [btrfs]
>[  668.386394]  btrfs_async_reclaim_metadata_space+0x180/0x340 [btrfs]
>[  668.387218]  process_one_work+0x3b6/0x838
>[  668.387239]  worker_thread+0x75e/0xb10
>[  668.387258]  kthread+0x21a/0x230
>[  668.387281]  __ret_from_fork+0x6c/0xb8
>[  668.387303]  ret_from_fork+0xa/0x30
>
>[  668.387342] read to 0x0000000170c73a00 of 8 bytes by task 35 on cpu 1:
>[  668.387366]  osq_unlock+0x120/0x198
>[  668.387392]  rwsem_down_write_slowpath+0x940/0xd60
>[  668.387420]  down_write+0xd8/0xf0
>[  668.387447]  __btrfs_tree_lock+0x3e/0xd8 [btrfs]
>[  668.388288]  btrfs_tree_lock+0x38/0x50 [btrfs]
>[  668.389138]  btrfs_lock_root_node+0x56/0x88 [btrfs]
>[  668.389986]  btrfs_search_slot+0x268/0x19b8 [btrfs]
>[  668.390816]  lookup_inline_extent_backref+0x25c/0xa80 [btrfs]
>[  668.391648]  lookup_extent_backref+0x82/0x140 [btrfs]
>[  668.392487]  __btrfs_free_extent.isra.0+0x15c/0x2028 [btrfs]
>[  668.393334]  __btrfs_run_delayed_refs+0xb3e/0x2390 [btrfs]
>[  668.394166]  btrfs_run_delayed_refs+0xae/0x290 [btrfs]
>[  668.394996]  flush_space+0x5e4/0x718 [btrfs]
>[  668.395823]  btrfs_preempt_reclaim_metadata_space+0x102/0x2f8 [btrfs]
>[  668.396655]  process_one_work+0x3b6/0x838
>[  668.396678]  worker_thread+0x75e/0xb10
>[  668.396702]  kthread+0x21a/0x230
>[  668.396728]  __ret_from_fork+0x6c/0xb8
>[  668.396754]  ret_from_fork+0xa/0x30
>
>[  668.396800] value changed: 0x0000000000000000 -> 0x0000000170c54a00
>
>[  668.396844] Reported by Kernel Concurrency Sanitizer on:
>[  668.396871] CPU: 1 PID: 35 Comm: kworker/u130:0 Kdump: loaded Not tainted 6.7.4-1.g9e758e0-default #1 openSUSE Tumbleweed (unreleased) b54db25b5c91e1f741a77b8c006738e22884ded0
>[  668.396923] Hardware name: IBM 8561 LT1 400 (z/VM 7.3.0)
>[  668.396954] Workqueue: events_unbound btrfs_preempt_reclaim_metadata_space [btrfs]
>[  668.397819] ==================================================================
>[  669.080241] ==================================================================
>[  669.080290] BUG: KCSAN: data-race in rcu_all_qs / rcu_report_qs_rdp
>
>[  669.080334] write (marked) to 0x0000000170c73c15 of 1 bytes by interrupt on cpu 1:
>[  669.080359]  rcu_report_qs_rdp+0x144/0x228
>[  669.080384]  rcu_core+0x860/0xe00
>[  669.080408]  rcu_core_si+0x30/0x48
>[  669.080433]  __do_softirq+0x14c/0x410
>[  669.080461]  irq_exit_rcu+0xae/0xc8
>[  669.080485]  do_ext_irq+0xd8/0x120
>[  669.080513]  ext_int_handler+0xc4/0xf0
>[  669.080541]  __tsan_read8+0x0/0x1a0
>[  669.080568]  delay_loop+0x90/0xd0
>[  669.080596]  __udelay+0x36/0x48
>[  669.080623]  kcsan_setup_watchpoint+0x21a/0x568
>[  669.080654]  delay_loop+0x7c/0xd0
>[  669.080685]  __udelay+0x36/0x48
>[  669.080717]  kcsan_setup_watchpoint+0x21a/0x568
>[  669.080750]  delay_loop+0x90/0xd0
>[  669.080782]  __udelay+0x36/0x48
>[  669.080822]  kcsan_setup_watchpoint+0x21a/0x568
>[  669.080841]  rcu_all_qs+0x4e/0x1b0
>[  669.080860]  __cond_resched+0x2c/0x78
>[  669.080878]  btrfs_search_slot+0x8a/0x19b8 [btrfs]
>[  669.081875]  btrfs_update_root+0x7c/0x660 [btrfs]
>[  669.082691]  btrfs_drop_snapshot+0x9a0/0x1328 [btrfs]
>[  669.083501]  btrfs_clean_one_deleted_snapshot+0x184/0x238 [btrfs]
>[  669.084320]  cleaner_kthread+0x2b0/0x2f0 [btrfs]
>[  669.085132]  kthread+0x21a/0x230
>[  669.085162]  __ret_from_fork+0x6c/0xb8
>[  669.085189]  ret_from_fork+0xa/0x30
>
>[  669.085238] read to 0x0000000170c73c15 of 1 bytes by task 576 on cpu 1:
>[  669.085268]  rcu_all_qs+0x4e/0x1b0
>[  669.085298]  __cond_resched+0x2c/0x78
>[  669.085327]  btrfs_search_slot+0x8a/0x19b8 [btrfs]
>[  669.086146]  btrfs_update_root+0x7c/0x660 [btrfs]
>[  669.086967]  btrfs_drop_snapshot+0x9a0/0x1328 [btrfs]
>[  669.087792]  btrfs_clean_one_deleted_snapshot+0x184/0x238 [btrfs]
>[  669.088626]  cleaner_kthread+0x2b0/0x2f0 [btrfs]
>[  669.089432]  kthread+0x21a/0x230
>[  669.089453]  __ret_from_fork+0x6c/0xb8
>[  669.089474]  ret_from_fork+0xa/0x30
>
>[  669.089510] Reported by Kernel Concurrency Sanitizer on:
>[  669.089530] CPU: 1 PID: 576 Comm: btrfs-cleaner Kdump: loaded Not tainted 6.7.4-1.g9e758e0-default #1 openSUSE Tumbleweed (unreleased) b54db25b5c91e1f741a77b8c006738e22884ded0
>[  669.089573] Hardware name: IBM 8561 LT1 400 (z/VM 7.3.0)
>[  669.089597] ==================================================================
>[  669.753459] ==================================================================
>[  669.753498] BUG: KCSAN: data-race in arch_vcpu_is_preempted+0x4a/0xe0
>
>[  669.753536] race at unknown origin, with read to 0x0000000000426288 of 8 bytes by task 35 on cpu 2:
>[  669.753562]  arch_vcpu_is_preempted+0x4a/0xe0
>[  669.753587]  rwsem_spin_on_owner+0x84/0x178
>[  669.753615]  rwsem_down_write_slowpath+0xfc/0xd60
>[  669.753644]  down_write+0xd8/0xf0
>[  669.753668]  __btrfs_tree_lock+0x3e/0xd8 [btrfs]
>[  669.754684]  btrfs_tree_lock+0x38/0x50 [btrfs]
>[  669.755502]  btrfs_search_slot+0xde8/0x19b8 [btrfs]
>[  669.756315]  lookup_inline_extent_backref+0x25c/0xa80 [btrfs]
>[  669.757120]  lookup_extent_backref+0x82/0x140 [btrfs]
>[  669.757930]  __btrfs_free_extent.isra.0+0x15c/0x2028 [btrfs]
>[  669.758743]  __btrfs_run_delayed_refs+0xd3c/0x2390 [btrfs]
>[  669.759553]  btrfs_run_delayed_refs+0xae/0x290 [btrfs]
>[  669.760381]  flush_space+0x5e4/0x718 [btrfs]
>[  669.761190]  btrfs_preempt_reclaim_metadata_space+0x102/0x2f8 [btrfs]
>[  669.762002]  process_one_work+0x3b6/0x838
>[  669.762022]  worker_thread+0x75e/0xb10
>[  669.762042]  kthread+0x21a/0x230
>[  669.762068]  __ret_from_fork+0x6c/0xb8
>[  669.762092]  ret_from_fork+0xa/0x30
>
>[  669.762134] value changed: 0x000000000000000c -> 0x0000000000000028
>
>[  669.762177] Reported by Kernel Concurrency Sanitizer on:
>[  669.762202] CPU: 2 PID: 35 Comm: kworker/u130:0 Kdump: loaded Not tainted 6.7.4-1.g9e758e0-default #1 openSUSE Tumbleweed (unreleased) b54db25b5c91e1f741a77b8c006738e22884ded0
>[  669.762247] Hardware name: IBM 8561 LT1 400 (z/VM 7.3.0)
>[  669.762274] Workqueue: events_unbound btrfs_preempt_reclaim_metadata_space [btrfs]
>[  669.763105] ==================================================================
>[  672.993579] ==================================================================
>[  672.993622] BUG: KCSAN: data-race in wq_worker_tick / wq_worker_tick
>
>[  672.993666] read to 0x00000000868faaa8 of 8 bytes by interrupt on cpu 3:
>[  672.993692]  wq_worker_tick+0x70/0x248
>[  672.993719]  scheduler_tick+0x1bc/0x460
>[  672.993748]  update_process_times+0x104/0x120
>[  672.993778]  tick_sched_handle+0x8e/0xd8
>[  672.993807]  tick_nohz_highres_handler+0x82/0x108
>[  672.993838]  __hrtimer_run_queues+0x2d2/0x4d8
>[  672.993868]  hrtimer_interrupt+0x26a/0x528
>[  672.993899]  clock_comparator_work+0x74/0x90
>[  672.993932]  do_IRQ+0x8a/0xa8
>[  672.993965]  do_irq_async+0x7e/0x108
>[  672.994001]  do_ext_irq+0xd2/0x120
>[  672.994037]  ext_int_handler+0xc4/0xf0
>[  672.994073]  delay_loop+0x6a/0xd0
>[  672.994107]  delay_loop+0xa0/0xd0
>[  672.994144]  __udelay+0x36/0x48
>[  672.994185]  kcsan_setup_watchpoint+0x21a/0x568
>[  672.994206]  __btrfs_check_leaf+0x1e8/0x27e8 [btrfs]
>[  672.995261]  btrfs_check_leaf+0x38/0x60 [btrfs]
>[  672.996159]  btrfs_validate_extent_buffer+0x3a8/0x888 [btrfs]
>[  672.997056]  extent_buffer_read_end_io+0x260/0x280 [btrfs]
>[  672.997962]  __btrfs_bio_end_io+0x96/0xf0 [btrfs]
>[  672.998869]  btrfs_orig_bbio_end_io+0xdc/0x180 [btrfs]
>[  672.999762]  btrfs_end_bio_work+0x92/0xa8 [btrfs]
>[  673.000632]  process_one_work+0x3b6/0x838
>[  673.000659]  worker_thread+0x75e/0xb10
>[  673.000687]  kthread+0x21a/0x230
>[  673.000719]  __ret_from_fork+0x6c/0xb8
>[  673.000749]  ret_from_fork+0xa/0x30
>
>[  673.000803] write to 0x00000000868faaa8 of 8 bytes by interrupt on cpu 2:
>[  673.000836]  wq_worker_tick+0x86/0x248
>[  673.000869]  scheduler_tick+0x1bc/0x460
>[  673.000904]  update_process_times+0x104/0x120
>[  673.000942]  tick_sched_handle+0x8e/0xd8
>[  673.000960]  tick_nohz_highres_handler+0x82/0x108
>[  673.000982]  __hrtimer_run_queues+0x2d2/0x4d8
>[  673.001002]  hrtimer_interrupt+0x26a/0x528
>[  673.001021]  clock_comparator_work+0x74/0x90
>[  673.001041]  do_IRQ+0x8a/0xa8
>[  673.001061]  do_irq_async+0x7e/0x108
>[  673.001082]  do_ext_irq+0xd2/0x120
>[  673.001102]  ext_int_handler+0xc4/0xf0
>[  673.001123]  __tsan_func_exit+0x182/0x218
>[  673.001143]  check_prev_ino.part.0+0xcc/0x1b0 [btrfs]
>[  673.002005]  __btrfs_check_leaf+0xd50/0x27e8 [btrfs]
>[  673.002870]  btrfs_check_leaf+0x38/0x60 [btrfs]
>[  673.003731]  btrfs_validate_extent_buffer+0x3a8/0x888 [btrfs]
>[  673.004610]  extent_buffer_read_end_io+0x260/0x280 [btrfs]
>[  673.005507]  __btrfs_bio_end_io+0x96/0xf0 [btrfs]
>[  673.006448]  btrfs_orig_bbio_end_io+0xdc/0x180 [btrfs]
>[  673.007313]  btrfs_end_bio_work+0x92/0xa8 [btrfs]
>[  673.008179]  process_one_work+0x3b6/0x838
>[  673.008204]  worker_thread+0x75e/0xb10
>[  673.008224]  kthread+0x21a/0x230
>[  673.008248]  __ret_from_fork+0x6c/0xb8
>[  673.008268]  ret_from_fork+0xa/0x30
>
>[  673.008300] Reported by Kernel Concurrency Sanitizer on:
>[  673.008317] CPU: 2 PID: 9663 Comm: kworker/u131:2 Kdump: loaded Not tainted 6.7.4-1.g9e758e0-default #1 openSUSE Tumbleweed (unreleased) b54db25b5c91e1f741a77b8c006738e22884ded0
>[  673.008354] Hardware name: IBM 8561 LT1 400 (z/VM 7.3.0)
>[  673.008370] Workqueue: btrfs-endio-meta btrfs_end_bio_work [btrfs]
>[  673.009225] ==================================================================
>[  675.403628] ==================================================================
>[  675.403673] BUG: KCSAN: data-race in rcu_all_qs / rcu_report_qs_rdp
>
>[  675.403718] write (marked) to 0x0000000170c54c15 of 1 bytes by interrupt on cpu 0:
>[  675.403743]  rcu_report_qs_rdp+0x144/0x228
>[  675.403769]  rcu_core+0x860/0xe00
>[  675.403794]  rcu_core_si+0x30/0x48
>[  675.403819]  __do_softirq+0x14c/0x410
>[  675.403847]  irq_exit_rcu+0xae/0xc8
>[  675.403871]  do_ext_irq+0xd8/0x120
>[  675.403899]  ext_int_handler+0xc4/0xf0
>[  675.403928]  __tsan_read_range+0xac/0x1a8
>[  675.403956]  delay_loop+0x90/0xd0
>[  675.403983]  __udelay+0x36/0x48
>[  675.404010]  kcsan_setup_watchpoint+0x21a/0x568
>[  675.404040]  delay_loop+0x7c/0xd0
>[  675.404069]  __udelay+0x36/0x48
>[  675.404099]  kcsan_setup_watchpoint+0x21a/0x568
>[  675.404130]  delay_loop+0x90/0xd0
>[  675.404161]  __udelay+0x36/0x48
>[  675.404231]  kcsan_setup_watchpoint+0x21a/0x568
>[  675.404252]  delay_loop+0x7c/0xd0
>[  675.404271]  __udelay+0x36/0x48
>[  675.404291]  kcsan_setup_watchpoint+0x21a/0x568
>[  675.404314]  delay_loop+0x7c/0xd0
>[  675.404339]  __udelay+0x36/0x48
>[  675.404361]  kcsan_setup_watchpoint+0x21a/0x568
>[  675.404385]  rcu_all_qs+0x4e/0x1b0
>[  675.404410]  __cond_resched+0x2c/0x78
>[  675.404434]  down_write+0x30/0xf0
>[  675.404459]  __btrfs_tree_lock+0x3e/0xd8 [btrfs]
>[  675.405484]  btrfs_tree_lock+0x38/0x50 [btrfs]
>[  675.406310]  btrfs_lock_root_node+0x56/0x88 [btrfs]
>[  675.407142]  btrfs_search_slot+0x268/0x19b8 [btrfs]
>[  675.407964]  lookup_inline_extent_backref+0x25c/0xa80 [btrfs]
>[  675.408784]  lookup_extent_backref+0x82/0x140 [btrfs]
>[  675.409610]  __btrfs_free_extent.isra.0+0x15c/0x2028 [btrfs]
>[  675.410423]  __btrfs_run_delayed_refs+0xd3c/0x2390 [btrfs]
>[  675.411245]  btrfs_run_delayed_refs+0xae/0x290 [btrfs]
>[  675.412080]  flush_space+0x5e4/0x718 [btrfs]
>[  675.412888]  btrfs_preempt_reclaim_metadata_space+0x102/0x2f8 [btrfs]
>[  675.413699]  process_one_work+0x3b6/0x838
>[  675.413721]  worker_thread+0x75e/0xb10
>[  675.413743]  kthread+0x21a/0x230
>[  675.413768]  __ret_from_fork+0x6c/0xb8
>[  675.413793]  ret_from_fork+0xa/0x30
>
>[  675.413835] read to 0x0000000170c54c15 of 1 bytes by task 35 on cpu 0:
>[  675.413861]  rcu_all_qs+0x4e/0x1b0
>[  675.413887]  __cond_resched+0x2c/0x78
>[  675.413912]  down_write+0x30/0xf0
>[  675.413937]  __btrfs_tree_lock+0x3e/0xd8 [btrfs]
>[  675.414779]  btrfs_tree_lock+0x38/0x50 [btrfs]
>[  675.415596]  btrfs_lock_root_node+0x56/0x88 [btrfs]
>[  675.416431]  btrfs_search_slot+0x268/0x19b8 [btrfs]
>[  675.417268]  lookup_inline_extent_backref+0x25c/0xa80 [btrfs]
>[  675.418106]  lookup_extent_backref+0x82/0x140 [btrfs]
>[  675.418945]  __btrfs_free_extent.isra.0+0x15c/0x2028 [btrfs]
>[  675.419793]  __btrfs_run_delayed_refs+0xd3c/0x2390 [btrfs]
>[  675.420606]  btrfs_run_delayed_refs+0xae/0x290 [btrfs]
>[  675.421418]  flush_space+0x5e4/0x718 [btrfs]
>[  675.422235]  btrfs_preempt_reclaim_metadata_space+0x102/0x2f8 [btrfs]
>[  675.423061]  process_one_work+0x3b6/0x838
>[  675.423083]  worker_thread+0x75e/0xb10
>[  675.423105]  kthread+0x21a/0x230
>[  675.423131]  __ret_from_fork+0x6c/0xb8
>[  675.423156]  ret_from_fork+0xa/0x30
>
>[  675.423199] Reported by Kernel Concurrency Sanitizer on:
>[  675.423229] CPU: 0 PID: 35 Comm: kworker/u130:0 Kdump: loaded Not tainted 6.7.4-1.g9e758e0-default #1 openSUSE Tumbleweed (unreleased) b54db25b5c91e1f741a77b8c006738e22884ded0
>[  675.423277] Hardware name: IBM 8561 LT1 400 (z/VM 7.3.0)
>[  675.423307] Workqueue: events_unbound btrfs_preempt_reclaim_metadata_space [btrfs]
>[  675.424148] ==================================================================
>[  676.529636] ==================================================================
>[  676.529681] BUG: KCSAN: data-race in begin_new_exec / wait_consider_task
>
>[  676.529726] write to 0x000000008717cb38 of 4 bytes by task 10645 on cpu 2:
>[  676.529751]  begin_new_exec+0x564/0x1878
>[  676.529779]  load_elf_binary+0x82c/0x2638
>[  676.529807]  bprm_execve+0x50c/0xb50
>[  676.529833]  do_execveat_common.isra.0+0x328/0x3d8
>[  676.529862]  __s390x_sys_execve+0x8a/0xa8
>[  676.529892]  do_syscall+0x1c6/0x210
>[  676.529920]  __do_syscall+0xc8/0xf0
>[  676.529951]  system_call+0x70/0x98
>
>[  676.530002] read to 0x000000008717cb38 of 4 bytes by task 10643 on cpu 3:
>[  676.530035]  wait_consider_task+0x122/0x16a0
>[  676.530069]  __do_wait+0x120/0x410
>[  676.530101]  do_wait+0x12c/0x258
>[  676.530133]  kernel_wait4+0xf4/0x1a8
>[  676.530166]  __do_sys_wait4+0xcc/0xe8
>[  676.530207]  __s390x_sys_wait4+0x7c/0x98
>[  676.530226]  do_syscall+0x1c6/0x210
>[  676.530244]  __do_syscall+0xc8/0xf0
>[  676.530261]  system_call+0x70/0x98
>
>[  676.530288] Reported by Kernel Concurrency Sanitizer on:
>[  676.530303] CPU: 3 PID: 10643 Comm: grub Kdump: loaded Not tainted 6.7.4-1.g9e758e0-default #1 openSUSE Tumbleweed (unreleased) b54db25b5c91e1f741a77b8c006738e22884ded0
>[  676.530336] Hardware name: IBM 8561 LT1 400 (z/VM 7.3.0)
>[  676.530350] ==================================================================
>[  678.627001] ==================================================================
>[  678.627047] BUG: KCSAN: data-race in rcu_all_qs / rcu_report_qs_rdp
>
>[  678.627088] write (marked) to 0x0000000170c73c15 of 1 bytes by interrupt on cpu 1:
>[  678.627111]  rcu_report_qs_rdp+0x144/0x228
>[  678.627136]  rcu_core+0x860/0xe00
>[  678.627159]  rcu_core_si+0x30/0x48
>[  678.627183]  __do_softirq+0x14c/0x410
>[  678.627211]  irq_exit_rcu+0xae/0xc8
>[  678.627234]  do_ext_irq+0xd8/0x120
>[  678.627261]  ext_int_handler+0xc4/0xf0
>[  678.627289]  __tsan_read_range+0x9c/0x1a8
>[  678.627316]  delay_loop+0x90/0xd0
>[  678.627343]  __udelay+0x36/0x48
>[  678.627370]  kcsan_setup_watchpoint+0x21a/0x568
>[  678.627399]  delay_loop+0x90/0xd0
>[  678.627429]  __udelay+0x36/0x48
>[  678.627457]  kcsan_setup_watchpoint+0x21a/0x568
>[  678.627488]  delay_loop+0x7c/0xd0
>[  678.627518]  __udelay+0x36/0x48
>[  678.627557]  kcsan_setup_watchpoint+0x21a/0x568
>[  678.627575]  rcu_all_qs+0x4e/0x1b0
>[  678.627592]  __cond_resched+0x2c/0x78
>[  678.627608]  btrfs_search_slot+0x8a/0x19b8 [btrfs]
>[  678.628575]  btrfs_lookup_extent_info+0x156/0x830 [btrfs]
>[  678.629368]  do_walk_down+0x398/0xe68 [btrfs]
>[  678.630154]  walk_down_tree+0x176/0x240 [btrfs]
>[  678.630942]  btrfs_drop_snapshot+0x7de/0x1328 [btrfs]
>[  678.631780]  btrfs_clean_one_deleted_snapshot+0x184/0x238 [btrfs]
>[  678.632582]  cleaner_kthread+0x2b0/0x2f0 [btrfs]
>[  678.633389]  kthread+0x21a/0x230
>[  678.633418]  __ret_from_fork+0x6c/0xb8
>[  678.633445]  ret_from_fork+0xa/0x30
>
>[  678.633495] read to 0x0000000170c73c15 of 1 bytes by task 576 on cpu 1:
>[  678.633524]  rcu_all_qs+0x4e/0x1b0
>[  678.633555]  __cond_resched+0x2c/0x78
>[  678.633585]  btrfs_search_slot+0x8a/0x19b8 [btrfs]
>[  678.634386]  btrfs_lookup_extent_info+0x156/0x830 [btrfs]
>[  678.635196]  do_walk_down+0x398/0xe68 [btrfs]
>[  678.635977]  walk_down_tree+0x176/0x240 [btrfs]
>[  678.636761]  btrfs_drop_snapshot+0x7de/0x1328 [btrfs]
>[  678.637546]  btrfs_clean_one_deleted_snapshot+0x184/0x238 [btrfs]
>[  678.638338]  cleaner_kthread+0x2b0/0x2f0 [btrfs]
>[  678.639128]  kthread+0x21a/0x230
>[  678.639152]  __ret_from_fork+0x6c/0xb8
>[  678.639176]  ret_from_fork+0xa/0x30
>
>[  678.639216] Reported by Kernel Concurrency Sanitizer on:
>[  678.639239] CPU: 1 PID: 576 Comm: btrfs-cleaner Kdump: loaded Not tainted 6.7.4-1.g9e758e0-default #1 openSUSE Tumbleweed (unreleased) b54db25b5c91e1f741a77b8c006738e22884ded0
>[  678.639283] Hardware name: IBM 8561 LT1 400 (z/VM 7.3.0)
>[  678.639309] ==================================================================
>[  696.040385] ==================================================================
>[  696.040430] BUG: KCSAN: data-race in rcu_all_qs / rcu_report_qs_rdp
>
>[  696.040472] write (marked) to 0x0000000170c92c15 of 1 bytes by interrupt on cpu 2:
>[  696.040496]  rcu_report_qs_rdp+0x144/0x228
>[  696.040520]  rcu_core+0x860/0xe00
>[  696.040543]  rcu_core_si+0x30/0x48
>[  696.040568]  __do_softirq+0x14c/0x410
>[  696.040595]  irq_exit_rcu+0xae/0xc8
>[  696.040618]  do_ext_irq+0xd8/0x120
>[  696.040644]  ext_int_handler+0xc4/0xf0
>[  696.040670]  delay_loop+0x90/0xd0
>[  696.040695]  __udelay+0x36/0x48
>[  696.040721]  kcsan_setup_watchpoint+0x21a/0x568
>[  696.040749]  delay_loop+0x7c/0xd0
>[  696.040777]  __udelay+0x36/0x48
>[  696.040804]  kcsan_setup_watchpoint+0x21a/0x568
>[  696.040835]  delay_loop+0x7c/0xd0
>[  696.040864]  __udelay+0x36/0x48
>[  696.040894]  kcsan_setup_watchpoint+0x21a/0x568
>[  696.040948]  rcu_all_qs+0x4e/0x1b0
>[  696.040965]  __cond_resched+0x2c/0x78
>[  696.040981]  __kmem_cache_alloc_node+0x4be/0x530
>[  696.041002]  __kmalloc+0x5c/0x1e8
>[  696.041018]  load_elf_binary+0x1fa/0x2638
>[  696.041036]  bprm_execve+0x50c/0xb50
>[  696.041055]  do_execveat_common.isra.0+0x328/0x3d8
>[  696.041074]  __s390x_sys_execve+0x8a/0xa8
>[  696.041092]  do_syscall+0x1c6/0x210
>[  696.041109]  __do_syscall+0xc8/0xf0
>[  696.041125]  system_call+0x70/0x98
>
>[  696.041174] read to 0x0000000170c92c15 of 1 bytes by task 12139 on cpu 2:
>[  696.041224]  rcu_all_qs+0x4e/0x1b0
>[  696.041251]  __cond_resched+0x2c/0x78
>[  696.041278]  __kmem_cache_alloc_node+0x4be/0x530
>[  696.041308]  __kmalloc+0x5c/0x1e8
>[  696.041336]  load_elf_binary+0x1fa/0x2638
>[  696.041366]  bprm_execve+0x50c/0xb50
>[  696.041396]  do_execveat_common.isra.0+0x328/0x3d8
>[  696.041433]  __s390x_sys_execve+0x8a/0xa8
>[  696.041451]  do_syscall+0x1c6/0x210
>[  696.041467]  __do_syscall+0xc8/0xf0
>[  696.041484]  system_call+0x70/0x98
>
>[  696.041509] Reported by Kernel Concurrency Sanitizer on:
>[  696.041523] CPU: 2 PID: 12139 Comm: grub Kdump: loaded Not tainted 6.7.4-1.g9e758e0-default #1 openSUSE Tumbleweed (unreleased) b54db25b5c91e1f741a77b8c006738e22884ded0
>[  696.041554] Hardware name: IBM 8561 LT1 400 (z/VM 7.3.0)
>[  696.041568] ==================================================================
>[  697.816522] ==================================================================
>[  697.816561] BUG: KCSAN: data-race in arch_vcpu_is_preempted+0x4a/0xe0
>
>[  697.816599] race at unknown origin, with read to 0x0000000000424288 of 8 bytes by task 11715 on cpu 3:
>[  697.816626]  arch_vcpu_is_preempted+0x4a/0xe0
>[  697.816649]  mutex_spin_on_owner+0xb4/0x170
>[  697.816676]  __mutex_lock.constprop.0+0x760/0xfc8
>[  697.816704]  __mutex_lock_slowpath+0x38/0x50
>[  697.816730]  mutex_lock+0xb4/0xc8
>[  697.816755]  pipe_read+0x488/0x7d0
>[  697.816783]  vfs_read+0x466/0x498
>[  697.816808]  ksys_read+0x108/0x150
>[  697.816833]  __s390x_sys_read+0x68/0x88
>[  697.816863]  do_syscall+0x1c6/0x210
>[  697.816892]  __do_syscall+0xc8/0xf0
>[  697.816923]  system_call+0x70/0x98
>
>[  697.816976] value changed: 0x0000000000000004 -> 0x0000000000000028
>
>[  697.817048] Reported by Kernel Concurrency Sanitizer on:
>[  697.817062] CPU: 3 PID: 11715 Comm: grub Kdump: loaded Not tainted 6.7.4-1.g9e758e0-default #1 openSUSE Tumbleweed (unreleased) b54db25b5c91e1f741a77b8c006738e22884ded0
>[  697.817094] Hardware name: IBM 8561 LT1 400 (z/VM 7.3.0)
>[  697.817108] ==================================================================
>[  707.976919] ==================================================================
>[  707.976964] BUG: KCSAN: data-race in rcu_all_qs / rcu_report_qs_rdp
>
>[  707.977010] write (marked) to 0x0000000170cb1c15 of 1 bytes by interrupt on cpu 3:
>[  707.977034]  rcu_report_qs_rdp+0x144/0x228
>[  707.977059]  rcu_core+0x860/0xe00
>[  707.977083]  rcu_core_si+0x30/0x48
>[  707.977107]  __do_softirq+0x14c/0x410
>[  707.977134]  irq_exit_rcu+0xae/0xc8
>[  707.977157]  do_ext_irq+0xd8/0x120
>[  707.977183]  ext_int_handler+0xc4/0xf0
>[  707.977209]  __tsan_read_range+0xc8/0x1a8
>[  707.977236]  delay_loop+0x90/0xd0
>[  707.977263]  __udelay+0x36/0x48
>[  707.977290]  kcsan_setup_watchpoint+0x21a/0x568
>[  707.977319]  delay_loop+0x90/0xd0
>[  707.977347]  __udelay+0x36/0x48
>[  707.977375]  kcsan_setup_watchpoint+0x21a/0x568
>[  707.977407]  rcu_all_qs+0x4e/0x1b0
>[  707.977438]  __cond_resched+0x2c/0x78
>[  707.977514]  __kmem_cache_alloc_node+0x4be/0x530
>[  707.977536]  kmalloc_trace+0x3e/0xe0
>[  707.977553]  btrfs_qgroup_trace_extent+0x9e/0x188 [btrfs]
>[  707.978399]  btrfs_qgroup_trace_leaf_items+0x198/0x1b8 [btrfs]
>[  707.979190]  btrfs_qgroup_trace_subtree+0x2d8/0x938 [btrfs]
>[  707.979987]  do_walk_down+0xc54/0xe68 [btrfs]
>[  707.980785]  walk_down_tree+0x176/0x240 [btrfs]
>[  707.981576]  btrfs_drop_snapshot+0x7de/0x1328 [btrfs]
>[  707.982378]  btrfs_clean_one_deleted_snapshot+0x184/0x238 [btrfs]
>[  707.983173]  cleaner_kthread+0x2b0/0x2f0 [btrfs]
>[  707.983966]  kthread+0x21a/0x230
>[  707.983996]  __ret_from_fork+0x6c/0xb8
>[  707.984025]  ret_from_fork+0xa/0x30
>
>[  707.984074] read to 0x0000000170cb1c15 of 1 bytes by task 576 on cpu 3:
>[  707.984105]  rcu_all_qs+0x4e/0x1b0
>[  707.984136]  __cond_resched+0x2c/0x78
>[  707.984166]  __kmem_cache_alloc_node+0x4be/0x530
>[  707.984203]  kmalloc_trace+0x3e/0xe0
>[  707.984227]  btrfs_qgroup_trace_extent+0x9e/0x188 [btrfs]
>[  707.985026]  btrfs_qgroup_trace_leaf_items+0x198/0x1b8 [btrfs]
>[  707.985824]  btrfs_qgroup_trace_subtree+0x2d8/0x938 [btrfs]
>[  707.986623]  do_walk_down+0xc54/0xe68 [btrfs]
>[  707.987414]  walk_down_tree+0x176/0x240 [btrfs]
>[  707.988203]  btrfs_drop_snapshot+0x7de/0x1328 [btrfs]
>[  707.988998]  btrfs_clean_one_deleted_snapshot+0x184/0x238 [btrfs]
>[  707.989803]  cleaner_kthread+0x2b0/0x2f0 [btrfs]
>[  707.990605]  kthread+0x21a/0x230
>[  707.990634]  __ret_from_fork+0x6c/0xb8
>[  707.990660]  ret_from_fork+0xa/0x30
>
>[  707.990709] Reported by Kernel Concurrency Sanitizer on:
>[  707.990734] CPU: 3 PID: 576 Comm: btrfs-cleaner Kdump: loaded Not tainted 6.7.4-1.g9e758e0-default #1 openSUSE Tumbleweed (unreleased) b54db25b5c91e1f741a77b8c006738e22884ded0
>[  707.990783] Hardware name: IBM 8561 LT1 400 (z/VM 7.3.0)
>[  707.990815] ==================================================================
>[  711.136945] ==================================================================
>[  711.136991] BUG: KCSAN: data-race in rcu_all_qs / rcu_report_qs_rdp
>
>[  711.137034] write (marked) to 0x0000000170c73c15 of 1 bytes by interrupt on cpu 1:
>[  711.137059]  rcu_report_qs_rdp+0x144/0x228
>[  711.137084]  rcu_core+0x860/0xe00
>[  711.137108]  rcu_core_si+0x30/0x48
>[  711.137132]  __do_softirq+0x14c/0x410
>[  711.137160]  irq_exit_rcu+0xae/0xc8
>[  711.137183]  do_ext_irq+0xd8/0x120
>[  711.137209]  ext_int_handler+0xc4/0xf0
>[  711.137236]  delay_loop+0x6a/0xd0
>[  711.137262]  delay_loop+0xa0/0xd0
>[  711.137289]  __udelay+0x36/0x48
>[  711.137315]  kcsan_setup_watchpoint+0x21a/0x568
>[  711.137346]  rcu_all_qs+0x4e/0x1b0
>[  711.137378]  __cond_resched+0x2c/0x78
>[  711.137410]  down_write+0x30/0xf0
>[  711.137442]  __btrfs_tree_lock+0x3e/0xd8 [btrfs]
>[  711.138445]  btrfs_tree_lock+0x38/0x50 [btrfs]
>[  711.139284]  btrfs_lock_root_node+0x56/0x88 [btrfs]
>[  711.140095]  btrfs_search_slot+0x268/0x19b8 [btrfs]
>[  711.140922]  lookup_inline_extent_backref+0x25c/0xa80 [btrfs]
>[  711.141723]  lookup_extent_backref+0x82/0x140 [btrfs]
>[  711.142524]  __btrfs_free_extent.isra.0+0x15c/0x2028 [btrfs]
>[  711.143335]  __btrfs_run_delayed_refs+0xb3e/0x2390 [btrfs]
>[  711.144144]  btrfs_run_delayed_refs+0xae/0x290 [btrfs]
>[  711.144948]  flush_space+0x5e4/0x718 [btrfs]
>[  711.145768]  btrfs_preempt_reclaim_metadata_space+0x102/0x2f8 [btrfs]
>[  711.146577]  process_one_work+0x3b6/0x838
>[  711.146604]  worker_thread+0x75e/0xb10
>[  711.146631]  kthread+0x21a/0x230
>[  711.146661]  __ret_from_fork+0x6c/0xb8
>[  711.146691]  ret_from_fork+0xa/0x30
>
>[  711.146743] read to 0x0000000170c73c15 of 1 bytes by task 4415 on cpu 1:
>[  711.146776]  rcu_all_qs+0x4e/0x1b0
>[  711.146809]  __cond_resched+0x2c/0x78
>[  711.146844]  down_write+0x30/0xf0
>[  711.146861]  __btrfs_tree_lock+0x3e/0xd8 [btrfs]
>[  711.147652]  btrfs_tree_lock+0x38/0x50 [btrfs]
>[  711.148446]  btrfs_lock_root_node+0x56/0x88 [btrfs]
>[  711.149240]  btrfs_search_slot+0x268/0x19b8 [btrfs]
>[  711.150026]  lookup_inline_extent_backref+0x25c/0xa80 [btrfs]
>[  711.150829]  lookup_extent_backref+0x82/0x140 [btrfs]
>[  711.151632]  __btrfs_free_extent.isra.0+0x15c/0x2028 [btrfs]
>[  711.152432]  __btrfs_run_delayed_refs+0xb3e/0x2390 [btrfs]
>[  711.153242]  btrfs_run_delayed_refs+0xae/0x290 [btrfs]
>[  711.154059]  flush_space+0x5e4/0x718 [btrfs]
>[  711.154883]  btrfs_preempt_reclaim_metadata_space+0x102/0x2f8 [btrfs]
>[  711.155722]  process_one_work+0x3b6/0x838
>[  711.155752]  worker_thread+0x75e/0xb10
>[  711.155782]  kthread+0x21a/0x230
>[  711.155812]  __ret_from_fork+0x6c/0xb8
>[  711.155842]  ret_from_fork+0xa/0x30
>
>[  711.155904] Reported by Kernel Concurrency Sanitizer on:
>[  711.155919] CPU: 1 PID: 4415 Comm: kworker/u130:4 Kdump: loaded Not tainted 6.7.4-1.g9e758e0-default #1 openSUSE Tumbleweed (unreleased) b54db25b5c91e1f741a77b8c006738e22884ded0
>[  711.155952] Hardware name: IBM 8561 LT1 400 (z/VM 7.3.0)
>[  711.155968] Workqueue: events_unbound btrfs_preempt_reclaim_metadata_space [btrfs]
>[  711.156785] ==================================================================
>[  719.560242] ==================================================================
>[  719.560288] BUG: KCSAN: data-race in rcu_all_qs / rcu_report_qs_rdp
>
>[  719.560330] write (marked) to 0x0000000170c54c15 of 1 bytes by interrupt on cpu 0:
>[  719.560354]  rcu_report_qs_rdp+0x144/0x228
>[  719.560379]  rcu_core+0x860/0xe00
>[  719.560406]  rcu_core_si+0x30/0x48
>[  719.560430]  __do_softirq+0x14c/0x410
>[  719.560458]  irq_exit_rcu+0xae/0xc8
>[  719.560481]  do_ext_irq+0xd8/0x120
>[  719.560507]  ext_int_handler+0xc4/0xf0
>[  719.560534]  delay_loop+0x6a/0xd0
>[  719.560560]  delay_loop+0xa0/0xd0
>[  719.560586]  __udelay+0x36/0x48
>[  719.560613]  kcsan_setup_watchpoint+0x21a/0x568
>[  719.560642]  rcu_all_qs+0x4e/0x1b0
>[  719.560671]  __cond_resched+0x2c/0x78
>[  719.560700]  remove_vma+0x34/0xd8
>[  719.560733]  exit_mmap+0x298/0x580
>[  719.560761]  __mmput+0x9e/0x228
>[  719.560844]  mmput+0x7e/0x90
>[  719.560870]  begin_new_exec+0xb6e/0x1878
>[  719.560891]  load_elf_binary+0x82c/0x2638
>[  719.560911]  bprm_execve+0x50c/0xb50
>[  719.560931]  do_execveat_common.isra.0+0x328/0x3d8
>[  719.560954]  __s390x_sys_execve+0x8a/0xa8
>[  719.560976]  do_syscall+0x1c6/0x210
>[  719.560998]  __do_syscall+0xc8/0xf0
>[  719.561024]  system_call+0x70/0x98
>
>[  719.561065] read to 0x0000000170c54c15 of 1 bytes by task 13919 on cpu 0:
>[  719.561090]  rcu_all_qs+0x4e/0x1b0
>[  719.561116]  __cond_resched+0x2c/0x78
>[  719.561141]  remove_vma+0x34/0xd8
>[  719.561168]  exit_mmap+0x298/0x580
>[  719.561193]  __mmput+0x9e/0x228
>[  719.561219]  mmput+0x7e/0x90
>[  719.561244]  begin_new_exec+0xb6e/0x1878
>[  719.561275]  load_elf_binary+0x82c/0x2638
>[  719.561305]  bprm_execve+0x50c/0xb50
>[  719.561336]  do_execveat_common.isra.0+0x328/0x3d8
>[  719.561381]  __s390x_sys_execve+0x8a/0xa8
>[  719.561401]  do_syscall+0x1c6/0x210
>[  719.561418]  __do_syscall+0xc8/0xf0
>[  719.561437]  system_call+0x70/0x98
>
>[  719.561468] Reported by Kernel Concurrency Sanitizer on:
>[  719.561486] CPU: 0 PID: 13919 Comm: grub Kdump: loaded Not tainted 6.7.4-1.g9e758e0-default #1 openSUSE Tumbleweed (unreleased) b54db25b5c91e1f741a77b8c006738e22884ded0
>[  719.561525] Hardware name: IBM 8561 LT1 400 (z/VM 7.3.0)
>[  719.561546] ==================================================================
>[  725.096948] ==================================================================
>[  725.096993] BUG: KCSAN: data-race in rcu_all_qs / rcu_report_qs_rdp
>
>[  725.097035] write (marked) to 0x0000000170c73c15 of 1 bytes by interrupt on cpu 1:
>[  725.097058]  rcu_report_qs_rdp+0x144/0x228
>[  725.097082]  rcu_core+0x860/0xe00
>[  725.097105]  rcu_core_si+0x30/0x48
>[  725.097128]  __do_softirq+0x14c/0x410
>[  725.097154]  irq_exit_rcu+0xae/0xc8
>[  725.097177]  do_ext_irq+0xd8/0x120
>[  725.097202]  ext_int_handler+0xc4/0xf0
>[  725.097227]  __tsan_read_range+0x96/0x1a8
>[  725.097253]  delay_loop+0x90/0xd0
>[  725.097279]  __udelay+0x36/0x48
>[  725.097305]  kcsan_setup_watchpoint+0x21a/0x568
>[  725.097333]  delay_loop+0x90/0xd0
>[  725.097361]  __udelay+0x36/0x48
>[  725.097388]  kcsan_setup_watchpoint+0x21a/0x568
>[  725.097418]  delay_loop+0x7c/0xd0
>[  725.097448]  __udelay+0x36/0x48
>[  725.097497]  kcsan_setup_watchpoint+0x21a/0x568
>[  725.097514]  delay_loop+0x7c/0xd0
>[  725.097530]  __udelay+0x36/0x48
>[  725.097545]  kcsan_setup_watchpoint+0x21a/0x568
>[  725.097561]  rcu_all_qs+0x4e/0x1b0
>[  725.097603]  __cond_resched+0x2c/0x78
>[  725.097624]  down_write+0x30/0xf0
>[  725.097645]  dup_mmap+0x3a6/0xe08
>[  725.097666]  copy_process+0x1a74/0x3130
>[  725.097689]  kernel_clone+0xc8/0x568
>[  725.097711]  __do_sys_clone+0xcc/0xe8
>[  725.097734]  __s390x_sys_clone+0x90/0xb0
>[  725.097758]  do_syscall+0x1c6/0x210
>[  725.097785]  __do_syscall+0xc8/0xf0
>[  725.097812]  system_call+0x70/0x98
>
>[  725.097859] read to 0x0000000170c73c15 of 1 bytes by task 13939 on cpu 1:
>[  725.097888]  rcu_all_qs+0x4e/0x1b0
>[  725.097918]  __cond_resched+0x2c/0x78
>[  725.097946]  down_write+0x30/0xf0
>[  725.097975]  dup_mmap+0x3a6/0xe08
>[  725.098007]  copy_process+0x1a74/0x3130
>[  725.098022]  kernel_clone+0xc8/0x568
>[  725.098041]  __do_sys_clone+0xcc/0xe8
>[  725.098059]  __s390x_sys_clone+0x90/0xb0
>[  725.098077]  do_syscall+0x1c6/0x210
>[  725.098096]  __do_syscall+0xc8/0xf0
>[  725.098116]  system_call+0x70/0x98
>
>[  725.098151] Reported by Kernel Concurrency Sanitizer on:
>[  725.098171] CPU: 1 PID: 13939 Comm: grub Kdump: loaded Not tainted 6.7.4-1.g9e758e0-default #1 openSUSE Tumbleweed (unreleased) b54db25b5c91e1f741a77b8c006738e22884ded0
>[  725.098210] Hardware name: IBM 8561 LT1 400 (z/VM 7.3.0)
>[  725.098233] ==================================================================
>[  728.440282] ==================================================================
>[  728.440328] BUG: KCSAN: data-race in rcu_all_qs / rcu_report_qs_rdp
>
>[  728.440370] write (marked) to 0x0000000170c92c15 of 1 bytes by interrupt on cpu 2:
>[  728.440393]  rcu_report_qs_rdp+0x144/0x228
>[  728.440418]  rcu_core+0x860/0xe00
>[  728.440441]  rcu_core_si+0x30/0x48
>[  728.440466]  __do_softirq+0x14c/0x410
>[  728.440493]  irq_exit_rcu+0xae/0xc8
>[  728.440517]  do_ext_irq+0xd8/0x120
>[  728.440542]  ext_int_handler+0xc4/0xf0
>[  728.440569]  __tsan_read_range+0x120/0x1a8
>[  728.440596]  delay_loop+0x7c/0xd0
>[  728.440623]  __udelay+0x36/0x48
>[  728.440650]  kcsan_setup_watchpoint+0x21a/0x568
>[  728.440679]  delay_loop+0x7c/0xd0
>[  728.440708]  __udelay+0x36/0x48
>[  728.440737]  kcsan_setup_watchpoint+0x21a/0x568
>[  728.440768]  rcu_all_qs+0x4e/0x1b0
>[  728.440800]  __cond_resched+0x2c/0x78
>[  728.440852]  __put_anon_vma+0x40/0x1c0
>[  728.440870]  unlink_anon_vmas+0x366/0x3b8
>[  728.440886]  free_pgtables+0x272/0x308
>[  728.440903]  exit_mmap+0x1fa/0x580
>[  728.440936]  __mmput+0x9e/0x228
>[  728.440955]  mmput+0x7e/0x90
>[  728.440973]  do_exit+0x596/0x1390
>[  728.440994]  do_group_exit+0x7a/0x140
>[  728.441017]  __s390x_sys_exit_group+0x46/0x48
>[  728.441042]  do_syscall+0x1c6/0x210
>[  728.441066]  __do_syscall+0xc8/0xf0
>[  728.441090]  system_call+0x70/0x98
>
>[  728.441135] read to 0x0000000170c92c15 of 1 bytes by task 14592 on cpu 2:
>[  728.441163]  rcu_all_qs+0x4e/0x1b0
>[  728.441191]  __cond_resched+0x2c/0x78
>[  728.441220]  __put_anon_vma+0x40/0x1c0
>[  728.441249]  unlink_anon_vmas+0x366/0x3b8
>[  728.441278]  free_pgtables+0x272/0x308
>[  728.441311]  exit_mmap+0x1fa/0x580
>[  728.441339]  __mmput+0x9e/0x228
>[  728.441367]  mmput+0x7e/0x90
>[  728.441401]  do_exit+0x596/0x1390
>[  728.441418]  do_group_exit+0x7a/0x140
>[  728.441439]  __s390x_sys_exit_group+0x46/0x48
>[  728.441460]  do_syscall+0x1c6/0x210
>[  728.441480]  __do_syscall+0xc8/0xf0
>[  728.441500]  system_call+0x70/0x98
>
>[  728.441535] Reported by Kernel Concurrency Sanitizer on:
>[  728.441554] CPU: 2 PID: 14592 Comm: xmllint Kdump: loaded Not tainted 6.7.4-1.g9e758e0-default #1 openSUSE Tumbleweed (unreleased) b54db25b5c91e1f741a77b8c006738e22884ded0
>[  728.441595] Hardware name: IBM 8561 LT1 400 (z/VM 7.3.0)
>[  728.441618] ==================================================================
>[  730.453678] ==================================================================
>[  730.453719] BUG: KCSAN: data-race in arch_vcpu_is_preempted+0x4a/0xe0
>
>[  730.453756] race at unknown origin, with read to 0x0000000000422288 of 8 bytes by task 14425 on cpu 0:
>[  730.453787]  arch_vcpu_is_preempted+0x4a/0xe0
>[  730.453810]  mutex_spin_on_owner+0xb4/0x170
>[  730.453837]  __mutex_lock.constprop.0+0x760/0xfc8
>[  730.453865]  __mutex_lock_slowpath+0x38/0x50
>[  730.453891]  mutex_lock+0xb4/0xc8
>[  730.453920]  pipe_read+0x488/0x7d0
>[  730.453947]  vfs_read+0x466/0x498
>[  730.453971]  ksys_read+0x108/0x150
>[  730.453995]  __s390x_sys_read+0x68/0x88
>[  730.454021]  do_syscall+0x1c6/0x210
>[  730.454049]  __do_syscall+0xc8/0xf0
>[  730.454078]  system_call+0x70/0x98
>
>[  730.454130] value changed: 0x0000000000000004 -> 0x0000000000000028
>
>[  730.454256] Reported by Kernel Concurrency Sanitizer on:
>[  730.454284] CPU: 0 PID: 14425 Comm: grub Kdump: loaded Not tainted 6.7.4-1.g9e758e0-default #1 openSUSE Tumbleweed (unreleased) b54db25b5c91e1f741a77b8c006738e22884ded0
>[  730.454323] Hardware name: IBM 8561 LT1 400 (z/VM 7.3.0)
>[  730.454343] ==================================================================
>[  731.680257] ==================================================================
>[  731.680303] BUG: KCSAN: data-race in rcu_all_qs / rcu_report_qs_rdp
>
>[  731.680344] write (marked) to 0x0000000170c92c15 of 1 bytes by interrupt on cpu 2:
>[  731.680367]  rcu_report_qs_rdp+0x144/0x228
>[  731.680391]  rcu_core+0x860/0xe00
>[  731.680414]  rcu_core_si+0x30/0x48
>[  731.680438]  __do_softirq+0x14c/0x410
>[  731.680465]  irq_exit_rcu+0xae/0xc8
>[  731.680488]  do_ext_irq+0xd8/0x120
>[  731.680514]  ext_int_handler+0xc4/0xf0
>[  731.680540]  __tsan_read_range+0x168/0x1a8
>[  731.680567]  delay_loop+0x90/0xd0
>[  731.680593]  __udelay+0x36/0x48
>[  731.680619]  kcsan_setup_watchpoint+0x21a/0x568
>[  731.680648]  delay_loop+0x90/0xd0
>[  731.680676]  __udelay+0x36/0x48
>[  731.680705]  kcsan_setup_watchpoint+0x21a/0x568
>[  731.680735]  delay_loop+0x7c/0xd0
>[  731.680765]  __udelay+0x36/0x48
>[  731.680817]  kcsan_setup_watchpoint+0x21a/0x568
>[  731.680835]  rcu_all_qs+0x4e/0x1b0
>[  731.680852]  __cond_resched+0x2c/0x78
>[  731.680868]  mnt_want_write+0x44/0x160
>[  731.680884]  path_openat+0x12ce/0x1c88
>[  731.680900]  do_filp_open+0x13c/0x228
>[  731.680916]  do_sys_openat2+0xd4/0x110
>[  731.680934]  do_sys_open+0x7a/0xc0
>[  731.680950]  __s390x_sys_openat+0x80/0xa0
>[  731.680968]  do_syscall+0x1c6/0x210
>[  731.680984]  __do_syscall+0xc8/0xf0
>[  731.681001]  system_call+0x70/0x98
>
>[  731.681026] read to 0x0000000170c92c15 of 1 bytes by task 14842 on cpu 2:
>[  731.681043]  rcu_all_qs+0x4e/0x1b0
>[  731.681061]  __cond_resched+0x2c/0x78
>[  731.681076]  mnt_want_write+0x44/0x160
>[  731.681090]  path_openat+0x12ce/0x1c88
>[  731.681106]  do_filp_open+0x13c/0x228
>[  731.681121]  do_sys_openat2+0xd4/0x110
>[  731.681138]  do_sys_open+0x7a/0xc0
>[  731.681154]  __s390x_sys_openat+0x80/0xa0
>[  731.681172]  do_syscall+0x1c6/0x210
>[  731.681188]  __do_syscall+0xc8/0xf0
>[  731.681204]  system_call+0x70/0x98
>
>[  731.681229] Reported by Kernel Concurrency Sanitizer on:
>[  731.681243] CPU: 2 PID: 14842 Comm: grub Kdump: loaded Not tainted 6.7.4-1.g9e758e0-default #1 openSUSE Tumbleweed (unreleased) b54db25b5c91e1f741a77b8c006738e22884ded0
>[  731.681274] Hardware name: IBM 8561 LT1 400 (z/VM 7.3.0)
>[  731.681288] ==================================================================
>[  737.040293] ==================================================================
>[  737.040335] BUG: KCSAN: data-race in arch_vcpu_is_preempted+0x4a/0xe0
>
>[  737.040372] race at unknown origin, with read to 0x0000000000422288 of 8 bytes by interrupt on cpu 2:
>[  737.040398]  arch_vcpu_is_preempted+0x4a/0xe0
>[  737.040422]  arch_spin_lock_wait+0x304/0x678
>[  737.040449]  rcu_report_qs_rdp+0x204/0x228
>[  737.040478]  rcu_core+0x860/0xe00
>[  737.040505]  rcu_core_si+0x30/0x48
>[  737.040532]  __do_softirq+0x14c/0x410
>[  737.040561]  irq_exit_rcu+0xae/0xc8
>[  737.040587]  do_ext_irq+0x9c/0x120
>[  737.040616]  ext_int_handler+0xc4/0xf0
>[  737.040646]  psw_idle_exit+0x0/0xa
>[  737.040676]  arch_cpu_idle+0x36/0x48
>[  737.040707]  default_idle_call+0x3c/0x108
>[  737.040740]  do_idle+0xda/0x170
>[  737.040773]  cpu_startup_entry+0x40/0x48
>[  737.040805]  smp_start_secondary+0x202/0x230
>[  737.040857]  restart_int_handler+0x6a/0x80
>
>[  737.040885] value changed: 0x0000000000000008 -> 0x0000000000000028
>
>[  737.040910] Reported by Kernel Concurrency Sanitizer on:
>[  737.040924] CPU: 2 PID: 0 Comm: swapper/2 Kdump: loaded Not tainted 6.7.4-1.g9e758e0-default #1 openSUSE Tumbleweed (unreleased) b54db25b5c91e1f741a77b8c006738e22884ded0
>[  737.040957] Hardware name: IBM 8561 LT1 400 (z/VM 7.3.0)
>[  737.040971] ==================================================================
>[  741.193579] ==================================================================
>[  741.193625] BUG: KCSAN: data-race in __hrtimer_run_queues / hrtimer_active
>
>[  741.193668] read to 0x0000000170c43f18 of 8 bytes by interrupt on cpu 1:
>[  741.193695]  hrtimer_active+0x90/0x110
>[  741.193720]  task_tick_fair+0x52/0x3f0
>[  741.193749]  scheduler_tick+0xe6/0x460
>[  741.193778]  update_process_times+0x104/0x120
>[  741.193807]  tick_sched_handle+0x8e/0xd8
>[  741.193838]  tick_nohz_highres_handler+0x82/0x108
>[  741.193870]  __hrtimer_run_queues+0x2d2/0x4d8
>[  741.193902]  hrtimer_interrupt+0x26a/0x528
>[  741.193935]  clock_comparator_work+0x74/0x90
>[  741.193972]  do_IRQ+0x8a/0xa8
>[  741.194009]  do_irq_async+0x7e/0x108
>[  741.194045]  do_ext_irq+0xd2/0x120
>[  741.194081]  ext_int_handler+0xc4/0xf0
>[  741.194118]  ptep_xchg_direct+0x6/0x218
>[  741.194157]  __handle_mm_fault+0x62a/0x23b0
>[  741.194253]  handle_mm_fault+0x278/0x458
>[  741.194284]  do_exception+0x216/0x930
>[  741.194307]  do_dat_exception+0x38/0x50
>[  741.194330]  __do_pgm_check+0xf4/0x188
>[  741.194355]  pgm_check_handler+0x116/0x168
>
>[  741.194396] write to 0x0000000170c43f18 of 8 bytes by interrupt on cpu 0:
>[  741.194422]  __hrtimer_run_queues+0x214/0x4d8
>[  741.194449]  hrtimer_interrupt+0x26a/0x528
>[  741.194475]  clock_comparator_work+0x74/0x90
>[  741.194504]  do_IRQ+0x8a/0xa8
>[  741.194534]  do_irq_async+0x7e/0x108
>[  741.194565]  do_ext_irq+0xd2/0x120
>[  741.194596]  ext_int_handler+0xc4/0xf0
>[  741.194630]  delay_loop+0x6a/0xd0
>[  741.194660]  delay_loop+0xa0/0xd0
>[  741.194692]  __udelay+0x36/0x48
>[  741.194724]  kcsan_setup_watchpoint+0x21a/0x568
>[  741.194759]  delay_loop+0x7c/0xd0
>[  741.194793]  __udelay+0x36/0x48
>[  741.194827]  kcsan_setup_watchpoint+0x21a/0x568
>[  741.194891]  btrfs_get_64+0x40/0x260 [btrfs]
>[  741.195815]  btrfs_qgroup_trace_leaf_items+0x166/0x1b8 [btrfs]
>[  741.196679]  btrfs_qgroup_trace_subtree+0x2d8/0x938 [btrfs]
>[  741.197546]  do_walk_down+0xc54/0xe68 [btrfs]
>[  741.198416]  walk_down_tree+0x176/0x240 [btrfs]
>[  741.199277]  btrfs_drop_snapshot+0x7de/0x1328 [btrfs]
>[  741.200156]  btrfs_clean_one_deleted_snapshot+0x184/0x238 [btrfs]
>[  741.201030]  cleaner_kthread+0x2b0/0x2f0 [btrfs]
>[  741.201898]  kthread+0x21a/0x230
>[  741.201929]  __ret_from_fork+0x6c/0xb8
>[  741.201958]  ret_from_fork+0xa/0x30
>
>[  741.202012] Reported by Kernel Concurrency Sanitizer on:
>[  741.202039] CPU: 0 PID: 576 Comm: btrfs-cleaner Kdump: loaded Not tainted 6.7.4-1.g9e758e0-default #1 openSUSE Tumbleweed (unreleased) b54db25b5c91e1f741a77b8c006738e22884ded0
>[  741.202089] Hardware name: IBM 8561 LT1 400 (z/VM 7.3.0)
>[  741.202122] ==================================================================
>[  743.194019] ==================================================================
>[  743.194067] BUG: KCSAN: data-race in osq_lock / osq_lock
>
>[  743.194112] write to 0x0000000170c73a14 of 4 bytes by task 7524 on cpu 1:
>[  743.194138]  osq_lock+0x8a/0x330
>[  743.194164]  rwsem_down_write_slowpath+0xd0/0xd60
>[  743.194191]  down_write+0xd8/0xf0
>[  743.194220]  __btrfs_tree_lock+0x3e/0xd8 [btrfs]
>[  743.195115]  btrfs_tree_lock+0x38/0x50 [btrfs]
>[  743.195934]  btrfs_search_slot+0xde8/0x19b8 [btrfs]
>[  743.196814]  lookup_inline_extent_backref+0x25c/0xa80 [btrfs]
>[  743.197617]  lookup_extent_backref+0x82/0x140 [btrfs]
>[  743.198427]  __btrfs_free_extent.isra.0+0x15c/0x2028 [btrfs]
>[  743.199237]  __btrfs_run_delayed_refs+0xb3e/0x2390 [btrfs]
>[  743.200059]  btrfs_run_delayed_refs+0xae/0x290 [btrfs]
>[  743.200876]  btrfs_commit_transaction+0x122/0x1b30 [btrfs]
>[  743.201690]  btrfs_qgroup_rescan+0x84/0x138 [btrfs]
>[  743.202996]  btrfs_ioctl+0x1a64/0x31a0 [btrfs]
>[  743.203824]  __s390x_sys_ioctl+0x108/0x150
>[  743.203852]  do_syscall+0x1c6/0x210
>[  743.203877]  __do_syscall+0xc8/0xf0
>[  743.203903]  system_call+0x70/0x98
>
>[  743.203948] read to 0x0000000170c73a14 of 4 bytes by task 9513 on cpu 0:
>[  743.203975]  osq_lock+0x168/0x330
>[  743.204003]  rwsem_down_write_slowpath+0xd0/0xd60
>[  743.204035]  down_write+0xd8/0xf0
>[  743.204062]  __btrfs_tree_lock+0x3e/0xd8 [btrfs]
>[  743.204883]  btrfs_tree_lock+0x38/0x50 [btrfs]
>[  743.205710]  btrfs_lock_root_node+0x56/0x88 [btrfs]
>[  743.206539]  btrfs_search_slot+0x268/0x19b8 [btrfs]
>[  743.207358]  lookup_inline_extent_backref+0x25c/0xa80 [btrfs]
>[  743.208184]  lookup_extent_backref+0x82/0x140 [btrfs]
>[  743.209009]  __btrfs_free_extent.isra.0+0x15c/0x2028 [btrfs]
>[  743.209847]  __btrfs_run_delayed_refs+0xb3e/0x2390 [btrfs]
>[  743.210814]  btrfs_run_delayed_refs+0xae/0x290 [btrfs]
>[  743.211622]  flush_space+0x5e4/0x718 [btrfs]
>[  743.212445]  btrfs_preempt_reclaim_metadata_space+0x102/0x2f8 [btrfs]
>[  743.213278]  process_one_work+0x3b6/0x838
>[  743.213305]  worker_thread+0x75e/0xb10
>[  743.213329]  kthread+0x21a/0x230
>[  743.213358]  __ret_from_fork+0x6c/0xb8
>[  743.213383]  ret_from_fork+0xa/0x30
>
>[  743.213428] Reported by Kernel Concurrency Sanitizer on:
>[  743.213454] CPU: 0 PID: 9513 Comm: kworker/u131:1 Kdump: loaded Not tainted 6.7.4-1.g9e758e0-default #1 openSUSE Tumbleweed (unreleased) b54db25b5c91e1f741a77b8c006738e22884ded0
>[  743.213505] Hardware name: IBM 8561 LT1 400 (z/VM 7.3.0)
>[  743.213535] Workqueue: events_unbound btrfs_preempt_reclaim_metadata_space [btrfs]
>[  743.214380] ==================================================================
>[  743.297725] ==================================================================
>[  743.297763] BUG: KCSAN: data-race in arch_vcpu_is_preempted+0x4a/0xe0
>
>[  743.297800] race at unknown origin, with read to 0x000000007fffc288 of 8 bytes by task 7524 on cpu 1:
>[  743.297826]  arch_vcpu_is_preempted+0x4a/0xe0
>[  743.297847]  rwsem_spin_on_owner+0x84/0x178
>[  743.297873]  rwsem_down_write_slowpath+0xfc/0xd60
>[  743.297901]  down_write+0xd8/0xf0
>[  743.297925]  __btrfs_tree_lock+0x3e/0xd8 [btrfs]
>[  743.298836]  btrfs_tree_lock+0x38/0x50 [btrfs]
>[  743.299638]  btrfs_search_slot+0xde8/0x19b8 [btrfs]
>[  743.300445]  lookup_inline_extent_backref+0x25c/0xa80 [btrfs]
>[  743.301252]  lookup_extent_backref+0x82/0x140 [btrfs]
>[  743.302065]  __btrfs_free_extent.isra.0+0x15c/0x2028 [btrfs]
>[  743.302868]  __btrfs_run_delayed_refs+0xb3e/0x2390 [btrfs]
>[  743.303667]  btrfs_run_delayed_refs+0xae/0x290 [btrfs]
>[  743.304475]  btrfs_commit_transaction+0x122/0x1b30 [btrfs]
>[  743.305264]  btrfs_qgroup_rescan+0x84/0x138 [btrfs]
>[  743.306059]  btrfs_ioctl+0x1a64/0x31a0 [btrfs]
>[  743.306854]  __s390x_sys_ioctl+0x108/0x150
>[  743.306878]  do_syscall+0x1c6/0x210
>[  743.306900]  __do_syscall+0xc8/0xf0
>[  743.306923]  system_call+0x70/0x98
>
>[  743.306960] value changed: 0x000000000000000c -> 0x0000000000000028
>
>[  743.306998] Reported by Kernel Concurrency Sanitizer on:
>[  743.307021] CPU: 1 PID: 7524 Comm: snapperd Kdump: loaded Not tainted 6.7.4-1.g9e758e0-default #1 openSUSE Tumbleweed (unreleased) b54db25b5c91e1f741a77b8c006738e22884ded0
>[  743.307064] Hardware name: IBM 8561 LT1 400 (z/VM 7.3.0)
>[  743.307089] ==================================================================
>[  789.067027] ==================================================================
>[  789.067076] BUG: KCSAN: data-race in rcu_all_qs / rcu_implicit_dynticks_qs
>
>[  789.067118] write (marked) to 0x0000000170cb1c15 of 1 bytes by task 16 on cpu 2:
>[  789.067142]  rcu_implicit_dynticks_qs+0x22a/0xab8
>[  789.067167]  force_qs_rnp+0x308/0x6d8
>[  789.067190]  rcu_gp_fqs_loop+0x76c/0xa70
>[  789.067214]  rcu_gp_kthread+0x2ee/0x3d8
>[  789.067240]  kthread+0x21a/0x230
>[  789.067266]  __ret_from_fork+0x6c/0xb8
>[  789.067291]  ret_from_fork+0xa/0x30
>
>[  789.067339] read to 0x0000000170cb1c15 of 1 bytes by task 7524 on cpu 3:
>[  789.067366]  rcu_all_qs+0x4e/0x1b0
>[  789.067394]  __cond_resched+0x2c/0x78
>[  789.067422]  find_parent_nodes+0x6f8/0x3558 [btrfs]
>[  789.068436]  btrfs_find_all_roots_safe+0x114/0x288 [btrfs]
>[  789.069235]  btrfs_find_all_roots+0x50/0x118 [btrfs]
>[  789.070059]  btrfs_qgroup_account_extents+0x1a0/0x450 [btrfs]
>[  789.070844]  btrfs_commit_transaction+0xb20/0x1b30 [btrfs]
>[  789.071625]  btrfs_qgroup_rescan+0x84/0x138 [btrfs]
>[  789.072410]  btrfs_ioctl+0x1a64/0x31a0 [btrfs]
>[  789.073194]  __s390x_sys_ioctl+0x108/0x150
>[  789.073214]  do_syscall+0x1c6/0x210
>[  789.073232]  __do_syscall+0xc8/0xf0
>[  789.073249]  system_call+0x70/0x98
>
>[  789.073275] value changed: 0x00 -> 0x01
>
>[  789.073296] Reported by Kernel Concurrency Sanitizer on:
>[  789.073311] CPU: 3 PID: 7524 Comm: snapperd Kdump: loaded Not tainted 6.7.4-1.g9e758e0-default #1 openSUSE Tumbleweed (unreleased) b54db25b5c91e1f741a77b8c006738e22884ded0
>[  789.073343] Hardware name: IBM 8561 LT1 400 (z/VM 7.3.0)
>[  789.073357] ==================================================================
>[  833.353708] ==================================================================
>[  833.353757] BUG: KCSAN: data-race in rcu_all_qs / rcu_implicit_dynticks_qs
>
>[  833.353801] write (marked) to 0x0000000170cb1c15 of 1 bytes by task 16 on cpu 2:
>[  833.353824]  rcu_implicit_dynticks_qs+0x22a/0xab8
>[  833.353849]  force_qs_rnp+0x308/0x6d8
>[  833.353872]  rcu_gp_fqs_loop+0x76c/0xa70
>[  833.353896]  rcu_gp_kthread+0x2ee/0x3d8
>[  833.353922]  kthread+0x21a/0x230
>[  833.353948]  __ret_from_fork+0x6c/0xb8
>[  833.353973]  ret_from_fork+0xa/0x30
>
>[  833.354020] read to 0x0000000170cb1c15 of 1 bytes by task 7524 on cpu 3:
>[  833.354048]  rcu_all_qs+0x4e/0x1b0
>[  833.354076]  __cond_resched+0x2c/0x78
>[  833.354104]  find_parent_nodes+0x24cc/0x3558 [btrfs]
>[  833.354987]  btrfs_find_all_roots_safe+0x114/0x288 [btrfs]
>[  833.355786]  btrfs_find_all_roots+0x50/0x118 [btrfs]
>[  833.356616]  btrfs_qgroup_account_extents+0x1a0/0x450 [btrfs]
>[  833.357404]  btrfs_commit_transaction+0xb20/0x1b30 [btrfs]
>[  833.358187]  btrfs_qgroup_rescan+0x84/0x138 [btrfs]
>[  833.358974]  btrfs_ioctl+0x1a64/0x31a0 [btrfs]
>[  833.359760]  __s390x_sys_ioctl+0x108/0x150
>[  833.359784]  do_syscall+0x1c6/0x210
>[  833.359806]  __do_syscall+0xc8/0xf0
>[  833.359829]  system_call+0x70/0x98
>
>[  833.359868] value changed: 0x00 -> 0x01
>
>[  833.359905] Reported by Kernel Concurrency Sanitizer on:
>[  833.359928] CPU: 3 PID: 7524 Comm: snapperd Kdump: loaded Not tainted 6.7.4-1.g9e758e0-default #1 openSUSE Tumbleweed (unreleased) b54db25b5c91e1f741a77b8c006738e22884ded0
>[  833.359972] Hardware name: IBM 8561 LT1 400 (z/VM 7.3.0)
>[  833.359999] ==================================================================
>[  853.660300] ==================================================================
>[  853.660350] BUG: KCSAN: data-race in rcu_all_qs / rcu_report_qs_rdp
>
>[  853.660392] write (marked) to 0x0000000170cb1c15 of 1 bytes by interrupt on cpu 3:
>[  853.660418]  rcu_report_qs_rdp+0x144/0x228
>[  853.660442]  rcu_core+0x860/0xe00
>[  853.660467]  rcu_core_si+0x30/0x48
>[  853.660492]  __do_softirq+0x14c/0x410
>[  853.660520]  irq_exit_rcu+0xae/0xc8
>[  853.660544]  do_ext_irq+0xd8/0x120
>[  853.660571]  ext_int_handler+0xc4/0xf0
>[  853.660599]  __tsan_read_range+0x152/0x1a8
>[  853.660627]  delay_loop+0x7c/0xd0
>[  853.660655]  __udelay+0x36/0x48
>[  853.660682]  kcsan_setup_watchpoint+0x21a/0x568
>[  853.660712]  delay_loop+0x90/0xd0
>[  853.660741]  __udelay+0x36/0x48
>[  853.660771]  kcsan_setup_watchpoint+0x21a/0x568
>[  853.660803]  rcu_all_qs+0x4e/0x1b0
>[  853.660835]  __cond_resched+0x2c/0x78
>[  853.660884]  btrfs_search_slot+0x8a/0x19b8 [btrfs]
>[  853.661728]  find_parent_nodes+0x1fa/0x3558 [btrfs]
>[  853.662515]  btrfs_find_all_roots_safe+0x114/0x288 [btrfs]
>[  853.663303]  btrfs_find_all_roots+0x50/0x118 [btrfs]
>[  853.664093]  btrfs_qgroup_account_extents+0x1a0/0x450 [btrfs]
>[  853.664885]  btrfs_commit_transaction+0xb20/0x1b30 [btrfs]
>[  853.665678]  btrfs_qgroup_rescan+0x84/0x138 [btrfs]
>[  853.666470]  btrfs_ioctl+0x1a64/0x31a0 [btrfs]
>[  853.667263]  __s390x_sys_ioctl+0x108/0x150
>[  853.667291]  do_syscall+0x1c6/0x210
>[  853.667317]  __do_syscall+0xc8/0xf0
>[  853.667344]  system_call+0x70/0x98
>
>[  853.667391] read to 0x0000000170cb1c15 of 1 bytes by task 7524 on cpu 3:
>[  853.667420]  rcu_all_qs+0x4e/0x1b0
>[  853.667450]  __cond_resched+0x2c/0x78
>[  853.667479]  btrfs_search_slot+0x8a/0x19b8 [btrfs]
>[  853.668268]  find_parent_nodes+0x1fa/0x3558 [btrfs]
>[  853.669074]  btrfs_find_all_roots_safe+0x114/0x288 [btrfs]
>[  853.669861]  btrfs_find_all_roots+0x50/0x118 [btrfs]
>[  853.670662]  btrfs_qgroup_account_extents+0x1a0/0x450 [btrfs]
>[  853.671453]  btrfs_commit_transaction+0xb20/0x1b30 [btrfs]
>[  853.672238]  btrfs_qgroup_rescan+0x84/0x138 [btrfs]
>[  853.673027]  btrfs_ioctl+0x1a64/0x31a0 [btrfs]
>[  853.673817]  __s390x_sys_ioctl+0x108/0x150
>[  853.673841]  do_syscall+0x1c6/0x210
>[  853.673865]  __do_syscall+0xc8/0xf0
>[  853.673890]  system_call+0x70/0x98
>
>[  853.673934] Reported by Kernel Concurrency Sanitizer on:
>[  853.673958] CPU: 3 PID: 7524 Comm: snapperd Kdump: loaded Not tainted 6.7.4-1.g9e758e0-default #1 openSUSE Tumbleweed (unreleased) b54db25b5c91e1f741a77b8c006738e22884ded0
>[  853.674004] Hardware name: IBM 8561 LT1 400 (z/VM 7.3.0)
>[  853.674031] ==================================================================
>[  946.916048] systemd[1]: Starting Cleanup of Temporary Directories...
>[  947.190458] systemd[1]: systemd-tmpfiles-clean.service: Deactivated successfully.
>[  947.441048] systemd[1]: Finished Cleanup of Temporary Directories.
>[  949.564711] systemd[1]: systemd-journald.service: State 'stop-watchdog' timed out. Killing.
>[  949.565058] systemd[1]: systemd-journald.service: Killing process 633 (systemd-journal) with signal SIGKILL.
>[  970.106912] ==================================================================
>[  970.106960] BUG: KCSAN: data-race in rcu_all_qs / rcu_report_qs_rdp
>
>[  970.107003] write (marked) to 0x0000000170c73c15 of 1 bytes by interrupt on cpu 1:
>[  970.107027]  rcu_report_qs_rdp+0x144/0x228
>[  970.107053]  rcu_core+0x860/0xe00
>[  970.107076]  rcu_core_si+0x30/0x48
>[  970.107101]  __do_softirq+0x14c/0x410
>[  970.107129]  irq_exit_rcu+0xae/0xc8
>[  970.107152]  do_ext_irq+0xd8/0x120
>[  970.107177]  ext_int_handler+0xc4/0xf0
>[  970.107203]  __tsan_read_range+0x152/0x1a8
>[  970.107231]  __udelay+0x3c/0x48
>[  970.107257]  delay_loop+0x7c/0xd0
>[  970.107283]  __udelay+0x36/0x48
>[  970.107311]  kcsan_setup_watchpoint+0x21a/0x568
>[  970.107340]  delay_loop+0x7c/0xd0
>[  970.107369]  __udelay+0x36/0x48
>[  970.107398]  kcsan_setup_watchpoint+0x21a/0x568
>[  970.107429]  delay_loop+0x7c/0xd0
>[  970.107482]  __udelay+0x36/0x48
>[  970.107498]  kcsan_setup_watchpoint+0x21a/0x568
>[  970.107515]  rcu_all_qs+0x4e/0x1b0
>[  970.107532]  __cond_resched+0x2c/0x78
>[  970.107548]  kmem_cache_alloc+0x518/0x588
>[  970.107568]  add_prelim_ref+0x64/0x190 [btrfs]
>[  970.108443]  find_parent_nodes+0x112a/0x3558 [btrfs]
>[  970.109224]  btrfs_find_all_roots_safe+0x114/0x288 [btrfs]
>[  970.110007]  btrfs_find_all_roots+0x50/0x118 [btrfs]
>[  970.110850]  btrfs_qgroup_account_extents+0x1a0/0x450 [btrfs]
>[  970.111645]  btrfs_commit_transaction+0xb20/0x1b30 [btrfs]
>[  970.112436]  btrfs_qgroup_rescan+0x84/0x138 [btrfs]
>[  970.113234]  btrfs_ioctl+0x1a64/0x31a0 [btrfs]
>[  970.114032]  __s390x_sys_ioctl+0x108/0x150
>[  970.114064]  do_syscall+0x1c6/0x210
>[  970.114095]  __do_syscall+0xc8/0xf0
>[  970.114126]  system_call+0x70/0x98
>
>[  970.114180] read to 0x0000000170c73c15 of 1 bytes by task 7524 on cpu 1:
>[  970.114222]  rcu_all_qs+0x4e/0x1b0
>[  970.114241]  __cond_resched+0x2c/0x78
>[  970.114258]  kmem_cache_alloc+0x518/0x588
>[  970.114290]  add_prelim_ref+0x64/0x190 [btrfs]
>[  970.115075]  find_parent_nodes+0x112a/0x3558 [btrfs]
>[  970.115865]  btrfs_find_all_roots_safe+0x114/0x288 [btrfs]
>[  970.116657]  btrfs_find_all_roots+0x50/0x118 [btrfs]
>[  970.117449]  btrfs_qgroup_account_extents+0x1a0/0x450 [btrfs]
>[  970.118245]  btrfs_commit_transaction+0xb20/0x1b30 [btrfs]
>[  970.119034]  btrfs_qgroup_rescan+0x84/0x138 [btrfs]
>[  970.119828]  btrfs_ioctl+0x1a64/0x31a0 [btrfs]
>[  970.120623]  __s390x_sys_ioctl+0x108/0x150
>[  970.120652]  do_syscall+0x1c6/0x210
>[  970.120679]  __do_syscall+0xc8/0xf0
>[  970.120709]  system_call+0x70/0x98
>
>[  970.120759] Reported by Kernel Concurrency Sanitizer on:
>[  970.120788] CPU: 1 PID: 7524 Comm: snapperd Kdump: loaded Not tainted 6.7.4-1.g9e758e0-default #1 openSUSE Tumbleweed (unreleased) b54db25b5c91e1f741a77b8c006738e22884ded0
>[  970.120842] Hardware name: IBM 8561 LT1 400 (z/VM 7.3.0)
>[  970.120857] ==================================================================
>[ 1006.676941] ==================================================================
>[ 1006.676990] BUG: KCSAN: data-race in rcu_all_qs / rcu_implicit_dynticks_qs
>
>[ 1006.677034] write (marked) to 0x0000000170c73c15 of 1 bytes by task 16 on cpu 2:
>[ 1006.677058]  rcu_implicit_dynticks_qs+0x22a/0xab8
>[ 1006.677083]  force_qs_rnp+0x308/0x6d8
>[ 1006.677106]  rcu_gp_fqs_loop+0x76c/0xa70
>[ 1006.677130]  rcu_gp_kthread+0x2ee/0x3d8
>[ 1006.677156]  kthread+0x21a/0x230
>[ 1006.677182]  __ret_from_fork+0x6c/0xb8
>[ 1006.677207]  ret_from_fork+0xa/0x30
>
>[ 1006.677254] read to 0x0000000170c73c15 of 1 bytes by task 7524 on cpu 1:
>[ 1006.677282]  rcu_all_qs+0x4e/0x1b0
>[ 1006.677310]  __cond_resched+0x2c/0x78
>[ 1006.677338]  __kmem_cache_alloc_node+0x4be/0x530
>[ 1006.677371]  kmalloc_trace+0x3e/0xe0
>[ 1006.677401]  ulist_add_merge+0xe8/0x328 [btrfs]
>[ 1006.678263]  find_parent_nodes+0xc6c/0x3558 [btrfs]
>[ 1006.679104]  btrfs_find_all_roots_safe+0x114/0x288 [btrfs]
>[ 1006.679910]  btrfs_find_all_roots+0x50/0x118 [btrfs]
>[ 1006.680694]  btrfs_qgroup_account_extents+0x1a0/0x450 [btrfs]
>[ 1006.681476]  btrfs_commit_transaction+0xb20/0x1b30 [btrfs]
>[ 1006.682253]  btrfs_qgroup_rescan+0x84/0x138 [btrfs]
>[ 1006.683035]  btrfs_ioctl+0x1a64/0x31a0 [btrfs]
>[ 1006.683819]  __s390x_sys_ioctl+0x108/0x150
>[ 1006.683846]  do_syscall+0x1c6/0x210
>[ 1006.683869]  __do_syscall+0xc8/0xf0
>[ 1006.683895]  system_call+0x70/0x98
>
>[ 1006.683938] value changed: 0x00 -> 0x01
>
>[ 1006.683978] Reported by Kernel Concurrency Sanitizer on:
>[ 1006.684004] CPU: 1 PID: 7524 Comm: snapperd Kdump: loaded Not tainted 6.7.4-1.g9e758e0-default #1 openSUSE Tumbleweed (unreleased) b54db25b5c91e1f741a77b8c006738e22884ded0
>[ 1006.684049] Hardware name: IBM 8561 LT1 400 (z/VM 7.3.0)
>[ 1006.684077] ==================================================================
>[ 1039.814667] systemd[1]: systemd-journald.service: Processes still around after SIGKILL. Ignoring.
>[ 1093.221151] systemd[1]: systemd-journald.service: Main process exited, code=killed, status=9/KILL
>[ 1093.221975] systemd[1]: systemd-journald.service: Failed with result 'watchdog'.
>[ 1093.233521] ==================================================================
>[ 1093.233561] BUG: KCSAN: data-race in rcu_all_qs / rcu_report_qs_rdp
>
>[ 1093.234275] write (marked) to 0x0000000170c54c15 of 1 bytes by interrupt on cpu 0:
>[ 1093.234403]  rcu_report_qs_rdp+0x144/0x228
>[ 1093.234436]  rcu_core+0x860/0xe00
>[ 1093.234469]  rcu_core_si+0x30/0x48
>[ 1093.234501]  __do_softirq+0x14c/0x410
>[ 1093.234537]  irq_exit_rcu+0xae/0xc8
>[ 1093.234781]  do_ext_irq+0xd8/0x120
>[ 1093.234818]  ext_int_handler+0xc4/0xf0
>[ 1093.234839]  __tsan_read8+0x16/0x1a0
>[ 1093.234859]  delay_loop+0xa0/0xd0
>[ 1093.234880]  __udelay+0x36/0x48
>[ 1093.234901]  kcsan_setup_watchpoint+0x21a/0x568
>[ 1093.235224]  delay_loop+0x90/0xd0
>[ 1093.235318]  __udelay+0x36/0x48
>[ 1093.235534]  kcsan_setup_watchpoint+0x21a/0x568
>[ 1093.235564]  rcu_all_qs+0x4e/0x1b0
>[ 1093.235595]  __cond_resched+0x2c/0x78
>[ 1093.235625]  find_parent_nodes+0xcca/0x3558 [btrfs]
>[ 1093.236911]  btrfs_find_all_roots_safe+0x114/0x288 [btrfs]
>[ 1093.237732]  btrfs_find_all_roots+0xb6/0x118 [btrfs]
>[ 1093.238846]  btrfs_qgroup_trace_extent_post+0xe2/0x1c0 [btrfs]
>[ 1093.239669]  btrfs_add_delayed_data_ref+0x65c/0x6d8 [btrfs]
>[ 1093.240542]  btrfs_free_extent+0x76/0x120 [btrfs]
>[ 1093.241738]  __btrfs_mod_ref+0x6a8/0x6b8 [btrfs]
>[ 1093.242926]  btrfs_dec_ref+0x50/0x70 [btrfs]
>[ 1093.243806]  walk_up_proc+0x236/0xa50 [btrfs]
>[ 1093.245171] systemd[1]: systemd-journald.service: Consumed 2.509s CPU time.
>[ 1093.245107]  walk_up_tree+0x21c/0x448 [btrfs]
>[ 1093.245913]  btrfs_drop_snapshot+0x802/0x1328 [btrfs]
>[ 1093.246717]  btrfs_clean_one_deleted_snapshot+0x184/0x238 [btrfs]
>[ 1093.247532]  cleaner_kthread+0x2b0/0x2f0 [btrfs]
>[ 1093.248468]  kthread+0x21a/0x230
>[ 1093.248648]  __ret_from_fork+0x6c/0xb8
>[ 1093.249206]  ret_from_fork+0xa/0x30
>
>[ 1093.249401] read to 0x0000000170c54c15 of 1 bytes by task 576 on cpu 0:
>[ 1093.249421]  rcu_all_qs+0x4e/0x1b0
>[ 1093.249442]  __cond_resched+0x2c/0x78
>[ 1093.251963] systemd[1]: systemd-journald.service: Scheduled restart job, restart counter is at 2.
>[ 1093.249463]  find_parent_nodes+0xcca/0x3558 [btrfs]
>[ 1093.255965]  btrfs_find_all_roots_safe+0x114/0x288 [btrfs]
>[ 1093.256791]  btrfs_find_all_roots+0xb6/0x118 [btrfs]
>[ 1093.257618]  btrfs_qgroup_trace_extent_post+0xe2/0x1c0 [btrfs]
>[ 1093.258450]  btrfs_add_delayed_data_ref+0x65c/0x6d8 [btrfs]
>[ 1093.259297]  btrfs_free_extent+0x76/0x120 [btrfs]
>[ 1093.260114]  __btrfs_mod_ref+0x6a8/0x6b8 [btrfs]
>[ 1093.261145]  btrfs_dec_ref+0x50/0x70 [btrfs]
>[ 1093.262127]  walk_up_proc+0x236/0xa50 [btrfs]
>[ 1093.262932]  walk_up_tree+0x21c/0x448 [btrfs]
>[ 1093.263964]  btrfs_drop_snapshot+0x802/0x1328 [btrfs]
>[ 1093.265002]  btrfs_clean_one_deleted_snapshot+0x184/0x238 [btrfs]
>[ 1093.266309]  cleaner_kthread+0x2b0/0x2f0 [btrfs]
>[ 1093.267117]  kthread+0x21a/0x230
>[ 1093.267144]  __ret_from_fork+0x6c/0xb8
>[ 1093.267168]  ret_from_fork+0xa/0x30
>
>[ 1093.267814] Reported by Kernel Concurrency Sanitizer on:
>[ 1093.267858] CPU: 0 PID: 576 Comm: btrfs-cleaner Kdump: loaded Not tainted 6.7.4-1.g9e758e0-default #1 openSUSE Tumbleweed (unreleased) b54db25b5c91e1f741a77b8c006738e22884ded0
>[ 1093.268068] Hardware name: IBM 8561 LT1 400 (z/VM 7.3.0)
>[ 1093.268100] ==================================================================
>[ 1093.342020] systemd[1]: Starting Journal Service...
>[ 1093.478755] systemd-journald[15722]: Collecting audit messages is disabled.
>[ 1093.485630] systemd-journald[15722]: File /var/log/journal/daf32f63ed8a41f0aff4027ebb4ce254/system.journal corrupted or uncleanly shut down, renaming and replacing.
>[ 1093.962683] systemd[1]: Started Journal Service.
>[ 1098.787030] ==================================================================
>[ 1098.787079] BUG: KCSAN: data-race in rcu_all_qs / rcu_implicit_dynticks_qs
>
>[ 1098.787122] write (marked) to 0x0000000170cb1c15 of 1 bytes by task 16 on cpu 2:
>[ 1098.787145]  rcu_implicit_dynticks_qs+0x22a/0xab8
>[ 1098.787170]  force_qs_rnp+0x308/0x6d8
>[ 1098.787193]  rcu_gp_fqs_loop+0x76c/0xa70
>[ 1098.787219]  rcu_gp_kthread+0x2ee/0x3d8
>[ 1098.787245]  kthread+0x21a/0x230
>[ 1098.787273]  __ret_from_fork+0x6c/0xb8
>[ 1098.787299]  ret_from_fork+0xa/0x30
>
>[ 1098.787347] read to 0x0000000170cb1c15 of 1 bytes by task 11 on cpu 3:
>[ 1098.787375]  rcu_all_qs+0x4e/0x1b0
>[ 1098.787403]  __cond_resched+0x2c/0x78
>[ 1098.787431]  btrfs_search_slot+0x8a/0x19b8 [btrfs]
>[ 1098.788414]  find_parent_nodes+0x1fa/0x3558 [btrfs]
>[ 1098.789210]  btrfs_find_all_roots_safe+0x114/0x288 [btrfs]
>[ 1098.790027]  btrfs_find_all_roots+0xf8/0x118 [btrfs]
>[ 1098.790813]  qgroup_rescan_leaf+0x3b0/0x680 [btrfs]
>[ 1098.791602]  btrfs_qgroup_rescan_worker+0x26a/0x580 [btrfs]
>[ 1098.792389]  btrfs_work_helper+0x160/0x7a0 [btrfs]
>[ 1098.793175]  process_one_work+0x3b6/0x838
>[ 1098.793197]  worker_thread+0x75e/0xb10
>[ 1098.793218]  kthread+0x21a/0x230
>[ 1098.793242]  __ret_from_fork+0x6c/0xb8
>[ 1098.793265]  ret_from_fork+0xa/0x30
>
>[ 1098.793305] value changed: 0x00 -> 0x01
>
>[ 1098.793342] Reported by Kernel Concurrency Sanitizer on:
>[ 1098.793366] CPU: 3 PID: 11 Comm: kworker/u128:0 Kdump: loaded Not tainted 6.7.4-1.g9e758e0-default #1 openSUSE Tumbleweed (unreleased) b54db25b5c91e1f741a77b8c006738e22884ded0
>[ 1098.793411] Hardware name: IBM 8561 LT1 400 (z/VM 7.3.0)
>[ 1098.793439] Workqueue: btrfs-qgroup-rescan btrfs_work_helper [btrfs]
>[ 1098.794249] ==================================================================
>[ 1110.513504] ==================================================================
>[ 1110.513552] BUG: KCSAN: data-race in rcu_all_qs / rcu_report_qs_rdp
>
>[ 1110.513595] write (marked) to 0x0000000170cb1c15 of 1 bytes by interrupt on cpu 3:
>[ 1110.513617]  rcu_report_qs_rdp+0x144/0x228
>[ 1110.513642]  rcu_core+0x860/0xe00
>[ 1110.513665]  rcu_core_si+0x30/0x48
>[ 1110.513689]  __do_softirq+0x14c/0x410
>[ 1110.513716]  irq_exit_rcu+0xae/0xc8
>[ 1110.513739]  do_ext_irq+0xd8/0x120
>[ 1110.513765]  ext_int_handler+0xc4/0xf0
>[ 1110.513791]  __tsan_read_range+0xda/0x1a8
>[ 1110.513817]  delay_loop+0x7c/0xd0
>[ 1110.513844]  __udelay+0x36/0x48
>[ 1110.513870]  kcsan_setup_watchpoint+0x21a/0x568
>[ 1110.513899]  rcu_all_qs+0x4e/0x1b0
>[ 1110.513928]  __cond_resched+0x2c/0x78
>[ 1110.513957]  btrfs_find_all_roots_safe+0x106/0x288 [btrfs]
>[ 1110.514840]  btrfs_find_all_roots+0xf8/0x118 [btrfs]
>[ 1110.515659]  qgroup_rescan_leaf+0x3b0/0x680 [btrfs]
>[ 1110.516455]  btrfs_qgroup_rescan_worker+0x26a/0x580 [btrfs]
>[ 1110.517255]  btrfs_work_helper+0x160/0x7a0 [btrfs]
>[ 1110.518035]  process_one_work+0x3b6/0x838
>[ 1110.518056]  worker_thread+0x75e/0xb10
>[ 1110.518077]  kthread+0x21a/0x230
>[ 1110.518101]  __ret_from_fork+0x6c/0xb8
>[ 1110.518124]  ret_from_fork+0xa/0x30
>
>[ 1110.518165] read to 0x0000000170cb1c15 of 1 bytes by task 11 on cpu 3:
>[ 1110.518191]  rcu_all_qs+0x4e/0x1b0
>[ 1110.518217]  __cond_resched+0x2c/0x78
>[ 1110.518243]  btrfs_find_all_roots_safe+0x106/0x288 [btrfs]
>[ 1110.519028]  btrfs_find_all_roots+0xf8/0x118 [btrfs]
>[ 1110.519814]  qgroup_rescan_leaf+0x3b0/0x680 [btrfs]
>[ 1110.520603]  btrfs_qgroup_rescan_worker+0x26a/0x580 [btrfs]
>[ 1110.521393]  btrfs_work_helper+0x160/0x7a0 [btrfs]
>[ 1110.522189]  process_one_work+0x3b6/0x838
>[ 1110.522228]  worker_thread+0x75e/0xb10
>[ 1110.522244]  kthread+0x21a/0x230
>[ 1110.522261]  __ret_from_fork+0x6c/0xb8
>[ 1110.522279]  ret_from_fork+0xa/0x30
>
>[ 1110.522311] Reported by Kernel Concurrency Sanitizer on:
>[ 1110.522329] CPU: 3 PID: 11 Comm: kworker/u128:0 Kdump: loaded Not tainted 6.7.4-1.g9e758e0-default #1 openSUSE Tumbleweed (unreleased) b54db25b5c91e1f741a77b8c006738e22884ded0
>[ 1110.522368] Hardware name: IBM 8561 LT1 400 (z/VM 7.3.0)
>[ 1110.522392] Workqueue: btrfs-qgroup-rescan btrfs_work_helper [btrfs]
>[ 1110.523182] ==================================================================
>[ 1119.686898] ==================================================================
>[ 1119.686947] BUG: KCSAN: data-race in rcu_all_qs / rcu_implicit_dynticks_qs
>
>[ 1119.686988] write (marked) to 0x0000000170cb1c15 of 1 bytes by task 16 on cpu 2:
>[ 1119.687011]  rcu_implicit_dynticks_qs+0x22a/0xab8
>[ 1119.687036]  force_qs_rnp+0x308/0x6d8
>[ 1119.687059]  rcu_gp_fqs_loop+0x76c/0xa70
>[ 1119.687083]  rcu_gp_kthread+0x2ee/0x3d8
>[ 1119.687109]  kthread+0x21a/0x230
>[ 1119.687135]  __ret_from_fork+0x6c/0xb8
>[ 1119.687161]  ret_from_fork+0xa/0x30
>
>[ 1119.687207] read to 0x0000000170cb1c15 of 1 bytes by task 11 on cpu 3:
>[ 1119.687234]  rcu_all_qs+0x4e/0x1b0
>[ 1119.687262]  __cond_resched+0x2c/0x78
>[ 1119.687290]  kmem_cache_alloc+0x518/0x588
>[ 1119.687322]  add_prelim_ref+0x64/0x190 [btrfs]
>[ 1119.688305]  find_parent_nodes+0x112a/0x3558 [btrfs]
>[ 1119.689103]  btrfs_find_all_roots_safe+0x114/0x288 [btrfs]
>[ 1119.689915]  btrfs_find_all_roots+0xf8/0x118 [btrfs]
>[ 1119.690723]  qgroup_rescan_leaf+0x3b0/0x680 [btrfs]
>[ 1119.691511]  btrfs_qgroup_rescan_worker+0x26a/0x580 [btrfs]
>[ 1119.692301]  btrfs_work_helper+0x160/0x7a0 [btrfs]
>[ 1119.693091]  process_one_work+0x3b6/0x838
>[ 1119.693112]  worker_thread+0x75e/0xb10
>[ 1119.693133]  kthread+0x21a/0x230
>[ 1119.693156]  __ret_from_fork+0x6c/0xb8
>[ 1119.693179]  ret_from_fork+0xa/0x30
>
>[ 1119.693220] value changed: 0x00 -> 0x01
>
>[ 1119.693257] Reported by Kernel Concurrency Sanitizer on:
>[ 1119.693281] CPU: 3 PID: 11 Comm: kworker/u128:0 Kdump: loaded Not tainted 6.7.4-1.g9e758e0-default #1 openSUSE Tumbleweed (unreleased) b54db25b5c91e1f741a77b8c006738e22884ded0
>[ 1119.693326] Hardware name: IBM 8561 LT1 400 (z/VM 7.3.0)
>[ 1119.693355] Workqueue: btrfs-qgroup-rescan btrfs_work_helper [btrfs]
>[ 1119.694160] ==================================================================
>[ 1124.373017] BTRFS info (device dasda2): qgroup scan paused
>[ 1557.149236] ==================================================================
>[ 1557.149279] BUG: KCSAN: data-race in copy_from_read_buf / n_tty_receive_buf_common
>
>[ 1557.149319] write (marked) to 0x0000037fffda5260 of 8 bytes by task 15749 on cpu 2:
>[ 1557.149342]  copy_from_read_buf+0x12c/0x238
>[ 1557.149386]  n_tty_read+0x4ee/0xb60
>[ 1557.149408]  tty_read+0x1b8/0x2f0
>[ 1557.149433]  vfs_read+0x2b6/0x498
>[ 1557.149455]  ksys_read+0xa2/0x150
>[ 1557.149477]  __s390x_sys_read+0x68/0x88
>[ 1557.149500]  do_syscall+0x1c6/0x210
>[ 1557.149526]  __do_syscall+0xc8/0xf0
>[ 1557.149555]  system_call+0x70/0x98
>
>[ 1557.149603] read to 0x0000037fffda5260 of 8 bytes by task 4419 on cpu 0:
>[ 1557.149633]  n_tty_receive_buf_common+0x354/0xb90
>[ 1557.149663]  n_tty_receive_buf2+0x50/0x70
>[ 1557.149691]  tty_ldisc_receive_buf+0x7e/0x100
>[ 1557.149722]  tty_port_default_receive_buf+0x6e/0xb0
>[ 1557.149827]  flush_to_ldisc+0x156/0x408
>[ 1557.149849]  process_one_work+0x3b6/0x838
>[ 1557.149869]  worker_thread+0x75e/0xb10
>[ 1557.149888]  kthread+0x21a/0x230
>[ 1557.149909]  __ret_from_fork+0x6c/0xb8
>[ 1557.149933]  ret_from_fork+0xa/0x30
>
>[ 1557.149969] value changed: 0x000000000000e63b -> 0x000000000000e6b1
>
>[ 1557.150006] Reported by Kernel Concurrency Sanitizer on:
>[ 1557.150028] CPU: 0 PID: 4419 Comm: kworker/u129:5 Kdump: loaded Not tainted 6.7.4-1.g9e758e0-default #1 openSUSE Tumbleweed (unreleased) b54db25b5c91e1f741a77b8c006738e22884ded0
>[ 1557.150070] Hardware name: IBM 8561 LT1 400 (z/VM 7.3.0)
>[ 1557.150096] Workqueue: events_unbound flush_to_ldisc
>[ 1557.150130] ==================================================================
>[ 1557.462120] ==================================================================
>[ 1557.462155] BUG: KCSAN: data-race in arch_vcpu_is_preempted+0x4a/0xe0
>
>[ 1557.462191] race at unknown origin, with read to 0x000000007fffc288 of 8 bytes by task 15749 on cpu 2:
>[ 1557.462216]  arch_vcpu_is_preempted+0x4a/0xe0
>[ 1557.462237]  arch_spin_lock_wait+0x304/0x678
>[ 1557.462265]  lock_sock_nested+0xd4/0xd8
>[ 1557.462290]  tcp_sendmsg+0x40/0x80
>[ 1557.462315]  inet_sendmsg+0x80/0xb8
>[ 1557.462341]  __sock_sendmsg+0xa8/0x118
>[ 1557.462369]  sock_write_iter+0x118/0x178
>[ 1557.462397]  vfs_write+0x33c/0x588
>[ 1557.462423]  ksys_write+0x108/0x150
>[ 1557.462448]  __s390x_sys_write+0x68/0x88
>[ 1557.462475]  do_syscall+0x1c6/0x210
>[ 1557.462504]  __do_syscall+0xc8/0xf0
>[ 1557.462534]  system_call+0x70/0x98
>
>[ 1557.462588] value changed: 0x0000000000000004 -> 0x000000000000000c
>
>[ 1557.462642] Reported by Kernel Concurrency Sanitizer on:
>[ 1557.462662] CPU: 2 PID: 15749 Comm: sshd Kdump: loaded Not tainted 6.7.4-1.g9e758e0-default #1 openSUSE Tumbleweed (unreleased) b54db25b5c91e1f741a77b8c006738e22884ded0
>[ 1557.462734] Hardware name: IBM 8561 LT1 400 (z/VM 7.3.0)
>[ 1557.462756] ==================================================================
>[ 1557.532770] ==================================================================
>[ 1557.532837] BUG: KCSAN: data-race in n_tty_read / n_tty_receive_buf_common
>
>[ 1557.532868] write (marked) to 0x0000037fffda3008 of 8 bytes by task 15742 on cpu 0:
>[ 1557.532887]  n_tty_receive_buf_common+0x342/0xb90
>[ 1557.532904]  n_tty_receive_buf2+0x50/0x70
>[ 1557.532920]  tty_ldisc_receive_buf+0x7e/0x100
>[ 1557.532937]  tty_port_default_receive_buf+0x6e/0xb0
>[ 1557.532955]  flush_to_ldisc+0x156/0x408
>[ 1557.532971]  process_one_work+0x3b6/0x838
>[ 1557.532988]  worker_thread+0x75e/0xb10
>[ 1557.533003]  kthread+0x21a/0x230
>[ 1557.533021]  __ret_from_fork+0x6c/0xb8
>[ 1557.533037]  ret_from_fork+0xa/0x30
>
>[ 1557.533066] read to 0x0000037fffda3008 of 8 bytes by task 15749 on cpu 2:
>[ 1557.533083]  n_tty_read+0x5ea/0xb60
>[ 1557.533097]  tty_read+0x1b8/0x2f0
>[ 1557.533115]  vfs_read+0x2b6/0x498
>[ 1557.533130]  ksys_read+0xa2/0x150
>[ 1557.533144]  __s390x_sys_read+0x68/0x88
>[ 1557.533159]  do_syscall+0x1c6/0x210
>[ 1557.533193]  __do_syscall+0xc8/0xf0
>[ 1557.533250]  system_call+0x70/0x98
>
>[ 1557.533282] value changed: 0x0000000000048616 -> 0x0000000000048618
>
>[ 1557.533313] Reported by Kernel Concurrency Sanitizer on:
>[ 1557.533331] CPU: 2 PID: 15749 Comm: sshd Kdump: loaded Not tainted 6.7.4-1.g9e758e0-default #1 openSUSE Tumbleweed (unreleased) b54db25b5c91e1f741a77b8c006738e22884ded0
>[ 1557.533369] Hardware name: IBM 8561 LT1 400 (z/VM 7.3.0)
>[ 1557.533391] ==================================================================
>[ 1557.561687] ==================================================================
>[ 1557.561729] BUG: KCSAN: data-race in n_tty_poll / n_tty_receive_buf_common
>
>[ 1557.561791] write (marked) to 0x0000037fffda3008 of 8 bytes by task 15742 on cpu 0:
>[ 1557.561833]  n_tty_receive_buf_common+0x342/0xb90
>[ 1557.561859]  n_tty_receive_buf2+0x50/0x70
>[ 1557.561879]  tty_ldisc_receive_buf+0x7e/0x100
>[ 1557.561900]  tty_port_default_receive_buf+0x6e/0xb0
>[ 1557.561924]  flush_to_ldisc+0x156/0x408
>[ 1557.561945]  process_one_work+0x3b6/0x838
>[ 1557.561967]  worker_thread+0x75e/0xb10
>[ 1557.561989]  kthread+0x21a/0x230
>[ 1557.562015]  __ret_from_fork+0x6c/0xb8
>[ 1557.562039]  ret_from_fork+0xa/0x30
>
>[ 1557.562084] read to 0x0000037fffda3008 of 8 bytes by task 15749 on cpu 2:
>[ 1557.562113]  n_tty_poll+0x368/0x3a8
>[ 1557.562138]  tty_poll+0xa6/0x128
>[ 1557.562168]  do_sys_poll+0x43c/0x840
>[ 1557.562198]  __s390x_sys_ppoll+0x110/0x148
>[ 1557.562229]  do_syscall+0x1c6/0x210
>[ 1557.562258]  __do_syscall+0xc8/0xf0
>[ 1557.562290]  system_call+0x70/0x98
>
>[ 1557.562347] value changed: 0x000000000004c632 -> 0x000000000004c68b
>
>[ 1557.562395] Reported by Kernel Concurrency Sanitizer on:
>[ 1557.562410] CPU: 2 PID: 15749 Comm: sshd Kdump: loaded Not tainted 6.7.4-1.g9e758e0-default #1 openSUSE Tumbleweed (unreleased) b54db25b5c91e1f741a77b8c006738e22884ded0
>[ 1557.562448] Hardware name: IBM 8561 LT1 400 (z/VM 7.3.0)
>[ 1557.562467] ==================================================================
>[ 1575.706943] ==================================================================
>[ 1575.706982] BUG: KCSAN: data-race in n_tty_read / n_tty_receive_buf_common
>
>[ 1575.707019] write (marked) to 0x0000037fffda3008 of 8 bytes by task 4419 on cpu 0:
>[ 1575.707043]  n_tty_receive_buf_common+0x342/0xb90
>[ 1575.707066]  n_tty_receive_buf2+0x50/0x70
>[ 1575.707089]  tty_ldisc_receive_buf+0x7e/0x100
>[ 1575.707114]  tty_port_default_receive_buf+0x6e/0xb0
>[ 1575.707141]  flush_to_ldisc+0x156/0x408
>[ 1575.707166]  process_one_work+0x3b6/0x838
>[ 1575.707193]  worker_thread+0x75e/0xb10
>[ 1575.707219]  kthread+0x21a/0x230
>[ 1575.707249]  __ret_from_fork+0x6c/0xb8
>[ 1575.707278]  ret_from_fork+0xa/0x30
>
>[ 1575.707333] read to 0x0000037fffda3008 of 8 bytes by task 15749 on cpu 2:
>[ 1575.707364]  n_tty_read+0x5ea/0xb60
>[ 1575.707393]  tty_read+0x1b8/0x2f0
>[ 1575.707440]  vfs_read+0x2b6/0x498
>[ 1575.707456]  ksys_read+0xa2/0x150
>[ 1575.707471]  __s390x_sys_read+0x68/0x88
>[ 1575.707494]  do_syscall+0x1c6/0x210
>[ 1575.707515]  __do_syscall+0xc8/0xf0
>[ 1575.707536]  system_call+0x70/0x98
>
>[ 1575.707571] value changed: 0x0000000000062133 -> 0x0000000000062135
>
>[ 1575.707607] Reported by Kernel Concurrency Sanitizer on:
>[ 1575.707629] CPU: 2 PID: 15749 Comm: sshd Kdump: loaded Not tainted 6.7.4-1.g9e758e0-default #1 openSUSE Tumbleweed (unreleased) b54db25b5c91e1f741a77b8c006738e22884ded0
>[ 1575.707673] Hardware name: IBM 8561 LT1 400 (z/VM 7.3.0)
>[ 1575.707698] ==================================================================
>[ 1575.708315] ==================================================================
>[ 1575.708357] BUG: KCSAN: data-race in poll_schedule_timeout.constprop.0 / pollwake
>
>[ 1575.708422] write (marked) to 0x0000037ffffcbb20 of 4 bytes by task 15749 on cpu 2:
>[ 1575.708468]  poll_schedule_timeout.constprop.0+0xbe/0xe8
>[ 1575.708494]  do_sys_poll+0x602/0x840
>[ 1575.708515]  __s390x_sys_ppoll+0x110/0x148
>[ 1575.708537]  do_syscall+0x1c6/0x210
>[ 1575.708557]  __do_syscall+0xc8/0xf0
>[ 1575.708579]  system_call+0x70/0x98
>
>[ 1575.708614] write to 0x0000037ffffcbb20 of 4 bytes by task 4419 on cpu 0:
>[ 1575.708638]  pollwake+0xc6/0x118
>[ 1575.708661]  __wake_up_common+0xa0/0xc8
>[ 1575.708687]  __wake_up_common_lock+0x5e/0xa0
>[ 1575.708711]  __wake_up+0x2a/0x38
>[ 1575.708734]  n_tty_receive_buf_common+0x38a/0xb90
>[ 1575.708760]  n_tty_receive_buf2+0x50/0x70
>[ 1575.708785]  tty_ldisc_receive_buf+0x7e/0x100
>[ 1575.708813]  tty_port_default_receive_buf+0x6e/0xb0
>[ 1575.708842]  flush_to_ldisc+0x156/0x408
>[ 1575.708871]  process_one_work+0x3b6/0x838
>[ 1575.708899]  worker_thread+0x75e/0xb10
>[ 1575.708928]  kthread+0x21a/0x230
>[ 1575.709007]  __ret_from_fork+0x6c/0xb8
>[ 1575.709031]  ret_from_fork+0xa/0x30
>
>[ 1575.709063] Reported by Kernel Concurrency Sanitizer on:
>[ 1575.709085] CPU: 0 PID: 4419 Comm: kworker/u129:5 Kdump: loaded Not tainted 6.7.4-1.g9e758e0-default #1 openSUSE Tumbleweed (unreleased) b54db25b5c91e1f741a77b8c006738e22884ded0
>[ 1575.709129] Hardware name: IBM 8561 LT1 400 (z/VM 7.3.0)
>[ 1575.709152] Workqueue: events_unbound flush_to_ldisc
>[ 1575.709181] ==================================================================
>[ 1576.106458] ==================================================================
>[ 1576.106498] BUG: KCSAN: data-race in ktime_get_real_seconds / timekeeping_advance
>
>[ 1576.106537] write to 0x000000006f80ca08 of 280 bytes by interrupt on cpu 0:
>[ 1576.106560]  timekeeping_advance+0x70e/0xdd8
>[ 1576.106583]  update_wall_time+0x30/0x60
>[ 1576.106606]  tick_do_update_jiffies64+0x198/0x238
>[ 1576.106632]  tick_sched_do_timer+0x144/0x148
>[ 1576.106658]  tick_nohz_highres_handler+0x6e/0x108
>[ 1576.106685]  __hrtimer_run_queues+0x2d2/0x4d8
>[ 1576.106711]  hrtimer_interrupt+0x26a/0x528
>[ 1576.106737]  clock_comparator_work+0x74/0x90
>[ 1576.106766]  do_IRQ+0x8a/0xa8
>[ 1576.106794]  do_irq_async+0x7e/0x108
>[ 1576.106824]  do_ext_irq+0xd2/0x120
>[ 1576.106855]  ext_int_handler+0xc4/0xf0
>[ 1576.106887]  __tsan_read8+0xd8/0x1a0
>[ 1576.106917]  delay_loop+0xa0/0xd0
>[ 1576.107000]  __udelay+0x36/0x48
>[ 1576.107024]  kcsan_setup_watchpoint+0x21a/0x568
>[ 1576.107045]  delay_loop+0x7c/0xd0
>[ 1576.107064]  __udelay+0x36/0x48
>[ 1576.107084]  kcsan_setup_watchpoint+0x21a/0x568
>[ 1576.107105]  ktime_get_real_seconds+0x32/0x50
>[ 1576.107127]  tty_update_time+0x34/0x190
>[ 1576.107153]  file_tty_write.isra.0+0x428/0x490
>[ 1576.107178]  tty_write+0x48/0x68
>[ 1576.107201]  vfs_write+0x33c/0x588
>[ 1576.107224]  ksys_write+0xa2/0x150
>[ 1576.107246]  __s390x_sys_write+0x68/0x88
>[ 1576.107270]  do_syscall+0x1c6/0x210
>[ 1576.107296]  __do_syscall+0xc8/0xf0
>[ 1576.107323]  system_call+0x70/0x98
>
>[ 1576.107371] read to 0x000000006f80ca78 of 8 bytes by task 15783 on cpu 0:
>[ 1576.107404]  ktime_get_real_seconds+0x32/0x50
>[ 1576.107434]  tty_update_time+0x34/0x190
>[ 1576.107467]  file_tty_write.isra.0+0x428/0x490
>[ 1576.107500]  tty_write+0x48/0x68
>[ 1576.107557]  vfs_write+0x33c/0x588
>[ 1576.107576]  ksys_write+0xa2/0x150
>[ 1576.107595]  __s390x_sys_write+0x68/0x88
>[ 1576.107614]  do_syscall+0x1c6/0x210
>[ 1576.107636]  __do_syscall+0xc8/0xf0
>[ 1576.107658]  system_call+0x70/0x98
>
>[ 1576.107693] Reported by Kernel Concurrency Sanitizer on:
>[ 1576.107713] CPU: 0 PID: 15783 Comm: dmesg Kdump: loaded Not tainted 6.7.4-1.g9e758e0-default #1 openSUSE Tumbleweed (unreleased) b54db25b5c91e1f741a77b8c006738e22884ded0
>[ 1576.107755] Hardware name: IBM 8561 LT1 400 (z/VM 7.3.0)
>[ 1576.107778] ==================================================================
>[ 1576.256418] ==================================================================
>[ 1576.256458] BUG: KCSAN: data-race in copy_from_read_buf / n_tty_receive_buf_common
>
>[ 1576.256499] write (marked) to 0x0000037fffda5260 of 8 bytes by task 15749 on cpu 2:
>[ 1576.256525]  copy_from_read_buf+0x12c/0x238
>[ 1576.256548]  n_tty_read+0x4ee/0xb60
>[ 1576.256571]  tty_read+0x1b8/0x2f0
>[ 1576.256597]  vfs_read+0x2b6/0x498
>[ 1576.256621]  ksys_read+0xa2/0x150
>[ 1576.256644]  __s390x_sys_read+0x68/0x88
>[ 1576.256669]  do_syscall+0x1c6/0x210
>[ 1576.256697]  __do_syscall+0xc8/0xf0
>[ 1576.256726]  system_call+0x70/0x98
>
>[ 1576.256792] read to 0x0000037fffda5260 of 8 bytes by task 15742 on cpu 0:
>[ 1576.256822]  n_tty_receive_buf_common+0x354/0xb90
>[ 1576.256852]  n_tty_receive_buf2+0x50/0x70
>[ 1576.256880]  tty_ldisc_receive_buf+0x7e/0x100
>[ 1576.256911]  tty_port_default_receive_buf+0x6e/0xb0
>[ 1576.256990]  flush_to_ldisc+0x156/0x408
>[ 1576.257014]  process_one_work+0x3b6/0x838
>[ 1576.257036]  worker_thread+0x75e/0xb10
>[ 1576.257055]  kthread+0x21a/0x230
>[ 1576.257078]  __ret_from_fork+0x6c/0xb8
>[ 1576.257123]  ret_from_fork+0xa/0x30
>
>[ 1576.257162] value changed: 0x00000000000a97cf -> 0x00000000000a9810
>
>[ 1576.257200] Reported by Kernel Concurrency Sanitizer on:
>[ 1576.257223] CPU: 0 PID: 15742 Comm: kworker/u129:2 Kdump: loaded Not tainted 6.7.4-1.g9e758e0-default #1 openSUSE Tumbleweed (unreleased) b54db25b5c91e1f741a77b8c006738e22884ded0
>[ 1576.257267] Hardware name: IBM 8561 LT1 400 (z/VM 7.3.0)
>[ 1576.257293] Workqueue: events_unbound flush_to_ldisc
>[ 1576.257327] ==================================================================
>[ 1578.602506] ==================================================================
>[ 1578.602547] BUG: KCSAN: data-race in n_tty_poll / n_tty_receive_buf_common
>
>[ 1578.602591] write (marked) to 0x0000037fffda3008 of 8 bytes by task 15742 on cpu 0:
>[ 1578.602621]  n_tty_receive_buf_common+0x342/0xb90
>[ 1578.602650]  n_tty_receive_buf2+0x50/0x70
>[ 1578.602677]  tty_ldisc_receive_buf+0x7e/0x100
>[ 1578.602706]  tty_port_default_receive_buf+0x6e/0xb0
>[ 1578.602735]  flush_to_ldisc+0x156/0x408
>[ 1578.602763]  process_one_work+0x3b6/0x838
>[ 1578.602791]  worker_thread+0x75e/0xb10
>[ 1578.602817]  kthread+0x21a/0x230
>[ 1578.602847]  __ret_from_fork+0x6c/0xb8
>[ 1578.602876]  ret_from_fork+0xa/0x30
>
>[ 1578.602935] read to 0x0000037fffda3008 of 8 bytes by task 15749 on cpu 2:
>[ 1578.602970]  n_tty_poll+0x148/0x3a8
>[ 1578.603003]  tty_poll+0xa6/0x128
>[ 1578.603056]  do_sys_poll+0x43c/0x840
>[ 1578.603077]  __s390x_sys_ppoll+0x110/0x148
>[ 1578.603096]  do_syscall+0x1c6/0x210
>[ 1578.603114]  __do_syscall+0xc8/0xf0
>[ 1578.603133]  system_call+0x70/0x98
>
>[ 1578.603161] value changed: 0x00000000000bd4ac -> 0x00000000000bd4ec
>
>[ 1578.603186] Reported by Kernel Concurrency Sanitizer on:
>[ 1578.603200] CPU: 2 PID: 15749 Comm: sshd Kdump: loaded Not tainted 6.7.4-1.g9e758e0-default #1 openSUSE Tumbleweed (unreleased) b54db25b5c91e1f741a77b8c006738e22884ded0
>[ 1578.603249] Hardware name: IBM 8561 LT1 400 (z/VM 7.3.0)
>[ 1578.603369] ==================================================================
>[ 1578.740249] ==================================================================
>[ 1578.740287] BUG: KCSAN: data-race in __flush_work.isra.0 / queue_work_on
>
>[ 1578.740326] read-write (marked) to 0x00000000872d1e08 of 8 bytes by task 15784 on cpu 0:
>[ 1578.740355]  queue_work_on+0x62/0xb8
>[ 1578.740382]  tty_insert_flip_string_and_push_buffer+0xde/0x140
>[ 1578.740414]  pty_write+0xa2/0xd0
>[ 1578.740440]  n_tty_write+0x306/0x840
>[ 1578.740468]  file_tty_write.isra.0+0x2a8/0x490
>[ 1578.740503]  tty_write+0x48/0x68
>[ 1578.740534]  vfs_write+0x33c/0x588
>[ 1578.740561]  ksys_write+0xa2/0x150
>[ 1578.740588]  __s390x_sys_write+0x68/0x88
>[ 1578.740619]  do_syscall+0x1c6/0x210
>[ 1578.740654]  __do_syscall+0xc8/0xf0
>[ 1578.740690]  system_call+0x70/0x98
>
>[ 1578.740748] write to 0x00000000872d1e08 of 8 bytes by task 15749 on cpu 2:
>[ 1578.740783]  __flush_work.isra.0+0x226/0x5b0
>[ 1578.740822]  flush_work+0x34/0x50
>[ 1578.740837]  tty_buffer_flush_work+0x34/0x48
>[ 1578.740855]  n_tty_poll+0x25c/0x3a8
>[ 1578.740870]  tty_poll+0xa6/0x128
>[ 1578.740887]  do_sys_poll+0x43c/0x840
>[ 1578.740905]  __s390x_sys_ppoll+0x110/0x148
>[ 1578.740924]  do_syscall+0x1c6/0x210
>[ 1578.740941]  __do_syscall+0xc8/0xf0
>[ 1578.740960]  system_call+0x70/0x98
>
>[ 1578.740987] Reported by Kernel Concurrency Sanitizer on:
>[ 1578.741003] CPU: 2 PID: 15749 Comm: sshd Kdump: loaded Not tainted 6.7.4-1.g9e758e0-default #1 openSUSE Tumbleweed (unreleased) b54db25b5c91e1f741a77b8c006738e22884ded0
>[ 1578.741037] Hardware name: IBM 8561 LT1 400 (z/VM 7.3.0)
>[ 1578.741052] ==================================================================
>[ 1578.755947] ==================================================================
>[ 1578.756091] BUG: KCSAN: data-race in blk_mq_delay_run_hw_queue / blk_mq_delay_run_hw_queue
>
>[ 1578.756142] read to 0x000000008459a19c of 4 bytes by interrupt on cpu 3:
>[ 1578.756171]  blk_mq_delay_run_hw_queue+0xac/0x258
>[ 1578.756200]  blk_mq_run_hw_queue+0x288/0x308
>[ 1578.756229]  __blk_mq_sched_restart+0x60/0x78
>[ 1578.756262]  __blk_mq_free_request+0x164/0x200
>[ 1578.756881]  blk_mq_free_request+0x162/0x1c8
>[ 1578.756903]  blk_mq_end_request+0xf4/0x240
>[ 1578.756927]  dasd_request_done+0x38/0x68 [dasd_mod]
>[ 1578.757051]  blk_mq_complete_request+0x70/0x88
>[ 1578.757103]  __dasd_cleanup_cqr+0x970/0xbb0 [dasd_mod]
>[ 1578.757218]  dasd_block_tasklet+0x560/0x928 [dasd_mod]
>[ 1578.757335]  tasklet_action_common.isra.0+0x14e/0x348
>[ 1578.757362]  __do_softirq+0x14c/0x410
>[ 1578.757390]  irq_exit_rcu+0xae/0xc8
>[ 1578.757416]  do_io_irq+0xc2/0x120
>[ 1578.757445]  io_int_handler+0xc4/0xf0
>[ 1578.757474]  __tsan_read_range+0x4a/0x1a8
>[ 1578.757505]  delay_loop+0x90/0xd0
>[ 1578.757536]  __udelay+0x36/0x48
>[ 1578.757568]  kcsan_setup_watchpoint+0x21a/0x568
>[ 1578.757601]  delay_loop+0x7c/0xd0
>[ 1578.757637]  __udelay+0x36/0x48
>[ 1578.757657]  kcsan_setup_watchpoint+0x21a/0x568
>[ 1578.757678]  blk_mq_delay_run_hw_queue+0xc0/0x258
>[ 1578.757711]  blk_mq_dispatch_rq_list+0xa56/0xf90
>[ 1578.757733]  __blk_mq_sched_dispatch_requests+0x19c/0xb70
>[ 1578.757760]  blk_mq_sched_dispatch_requests+0xca/0x108
>[ 1578.757787]  blk_mq_run_work_fn+0xcc/0xe8
>[ 1578.757814]  process_one_work+0x3b6/0x838
>[ 1578.758392]  worker_thread+0x75e/0xb10
>[ 1578.758422]  kthread+0x21a/0x230
>[ 1578.758454]  __ret_from_fork+0x6c/0xb8
>[ 1578.758483]  ret_from_fork+0xa/0x30
>
>[ 1578.758703] write to 0x000000008459a19c of 4 bytes by task 202 on cpu 3:
>[ 1578.759099]  blk_mq_delay_run_hw_queue+0xc0/0x258
>[ 1578.759124]  blk_mq_dispatch_rq_list+0xa56/0xf90
>[ 1578.759144]  __blk_mq_sched_dispatch_requests+0x19c/0xb70
>[ 1578.759292]  blk_mq_sched_dispatch_requests+0xca/0x108
>[ 1578.759348]  blk_mq_run_work_fn+0xcc/0xe8
>[ 1578.759619]  process_one_work+0x3b6/0x838
>[ 1578.759644]  worker_thread+0x75e/0xb10
>[ 1578.759941]  kthread+0x21a/0x230
>[ 1578.759971]  __ret_from_fork+0x6c/0xb8
>[ 1578.760000]  ret_from_fork+0xa/0x30
>
>[ 1578.760051] value changed: 0x00000006 -> 0x00000004
>
>[ 1578.760101] Reported by Kernel Concurrency Sanitizer on:
>[ 1578.760133] CPU: 3 PID: 202 Comm: kworker/3:1H Kdump: loaded Not tainted 6.7.4-1.g9e758e0-default #1 openSUSE Tumbleweed (unreleased) b54db25b5c91e1f741a77b8c006738e22884ded0
>[ 1578.760167] Hardware name: IBM 8561 LT1 400 (z/VM 7.3.0)
>[ 1578.760184] Workqueue: kblockd blk_mq_run_work_fn
>[ 1578.760208] ==================================================================
>[ 1578.773315] ==================================================================
>[ 1578.773343] BUG: KCSAN: data-race in queue_work_on / worker_thread
>
>[ 1578.773378] read-write (marked) to 0x00000000872d1e08 of 8 bytes by task 15784 on cpu 0:
>[ 1578.773403]  queue_work_on+0x62/0xb8
>[ 1578.773425]  tty_insert_flip_string_and_push_buffer+0xde/0x140
>[ 1578.773451]  pty_write+0xa2/0xd0
>[ 1578.773475]  n_tty_write+0x306/0x840
>[ 1578.773497]  file_tty_write.isra.0+0x2a8/0x490
>[ 1578.773524]  tty_write+0x48/0x68
>[ 1578.773550]  vfs_write+0x33c/0x588
>[ 1578.773575]  ksys_write+0xa2/0x150
>[ 1578.773600]  __s390x_sys_write+0x68/0x88
>[ 1578.773627]  do_syscall+0x1c6/0x210
>[ 1578.773655]  __do_syscall+0xc8/0xf0
>[ 1578.773686]  system_call+0x70/0x98
>
>[ 1578.773740] read to 0x00000000872d1e08 of 8 bytes by task 15742 on cpu 3:
>[ 1578.773773]  worker_thread+0x6cc/0xb10
>[ 1578.773807]  kthread+0x21a/0x230
>[ 1578.773826]  __ret_from_fork+0x6c/0xb8
>[ 1578.773844]  ret_from_fork+0xa/0x30
>
>[ 1578.773875] Reported by Kernel Concurrency Sanitizer on:
>[ 1578.773891] CPU: 3 PID: 15742 Comm: kworker/u129:2 Kdump: loaded Not tainted 6.7.4-1.g9e758e0-default #1 openSUSE Tumbleweed (unreleased) b54db25b5c91e1f741a77b8c006738e22884ded0
>[ 1578.773929] Hardware name: IBM 8561 LT1 400 (z/VM 7.3.0)
>[ 1578.773951] Workqueue:  0x0 (events_unbound)
>[ 1578.773995] ==================================================================
>[ 1578.804936] ==================================================================
>[ 1578.804975] BUG: KCSAN: data-race in __flush_work.isra.0 / queue_work_on
>
>[ 1578.805029] read-write (marked) to 0x00000000872d1e08 of 8 bytes by task 15784 on cpu 0:
>[ 1578.805061]  queue_work_on+0x62/0xb8
>[ 1578.805091]  tty_insert_flip_string_and_push_buffer+0xde/0x140
>[ 1578.805125]  pty_write+0xa2/0xd0
>[ 1578.805156]  n_tty_write+0x306/0x840
>[ 1578.805188]  file_tty_write.isra.0+0x2a8/0x490
>[ 1578.805224]  tty_write+0x48/0x68
>[ 1578.805260]  vfs_write+0x33c/0x588
>[ 1578.805293]  ksys_write+0xa2/0x150
>[ 1578.805312]  __s390x_sys_write+0x68/0x88
>[ 1578.805331]  do_syscall+0x1c6/0x210
>[ 1578.805352]  __do_syscall+0xc8/0xf0
>[ 1578.805374]  system_call+0x70/0x98
>
>[ 1578.805414] read to 0x00000000872d1e08 of 8 bytes by task 15749 on cpu 2:
>[ 1578.805440]  __flush_work.isra.0+0x1d6/0x5b0
>[ 1578.805466]  flush_work+0x34/0x50
>[ 1578.805492]  tty_buffer_flush_work+0x34/0x48
>[ 1578.805521]  n_tty_poll+0x25c/0x3a8
>[ 1578.805545]  tty_poll+0xa6/0x128
>[ 1578.805572]  do_sys_poll+0x43c/0x840
>[ 1578.805600]  __s390x_sys_ppoll+0x110/0x148
>[ 1578.805632]  do_syscall+0x1c6/0x210
>[ 1578.805663]  __do_syscall+0xc8/0xf0
>[ 1578.805696]  system_call+0x70/0x98
>
>[ 1578.805757] Reported by Kernel Concurrency Sanitizer on:
>[ 1578.805788] CPU: 2 PID: 15749 Comm: sshd Kdump: loaded Not tainted 6.7.4-1.g9e758e0-default #1 openSUSE Tumbleweed (unreleased) b54db25b5c91e1f741a77b8c006738e22884ded0
>[ 1578.805844] Hardware name: IBM 8561 LT1 400 (z/VM 7.3.0)
>[ 1578.805861] ==================================================================
>[ 1579.125834] ==================================================================
>[ 1579.125868] BUG: KCSAN: data-race in arch_vcpu_is_preempted+0x4a/0xe0
>
>[ 1579.125906] race at unknown origin, with read to 0x000000007fffc288 of 8 bytes by task 15749 on cpu 3:
>[ 1579.125933]  arch_vcpu_is_preempted+0x4a/0xe0
>[ 1579.125955]  arch_spin_lock_wait+0x304/0x678
>[ 1579.125981]  __flush_work.isra.0+0x564/0x5b0
>[ 1579.126006]  flush_work+0x34/0x50
>[ 1579.126029]  tty_buffer_flush_work+0x34/0x48
>[ 1579.126058]  n_tty_poll+0x25c/0x3a8
>[ 1579.126086]  tty_poll+0xa6/0x128
>[ 1579.126117]  do_sys_poll+0x43c/0x840
>[ 1579.126150]  __s390x_sys_ppoll+0x110/0x148
>[ 1579.126180]  do_syscall+0x1c6/0x210
>[ 1579.126210]  __do_syscall+0xc8/0xf0
>[ 1579.126243]  system_call+0x70/0x98
>
>[ 1579.126298] value changed: 0x0000000000000004 -> 0x000000000000000c
>
>[ 1579.126381] Reported by Kernel Concurrency Sanitizer on:
>[ 1579.126405] CPU: 3 PID: 15749 Comm: sshd Kdump: loaded Not tainted 6.7.4-1.g9e758e0-default #1 openSUSE Tumbleweed (unreleased) b54db25b5c91e1f741a77b8c006738e22884ded0
>[ 1579.126440] Hardware name: IBM 8561 LT1 400 (z/VM 7.3.0)
>[ 1579.126470] ==================================================================
>[ 1602.433797] ==================================================================
>[ 1602.433839] BUG: KCSAN: data-race in n_tty_check_unthrottle / n_tty_receive_buf_common
>
>[ 1602.433879] write (marked) to 0x0000037fffda3008 of 8 bytes by task 3307 on cpu 2:
>[ 1602.433903]  n_tty_receive_buf_common+0x342/0xb90
>[ 1602.433926]  n_tty_receive_buf2+0x50/0x70
>[ 1602.433949]  tty_ldisc_receive_buf+0x7e/0x100
>[ 1602.433974]  tty_port_default_receive_buf+0x6e/0xb0
>[ 1602.434000]  flush_to_ldisc+0x156/0x408
>[ 1602.434025]  process_one_work+0x3b6/0x838
>[ 1602.434052]  worker_thread+0x75e/0xb10
>[ 1602.434077]  kthread+0x21a/0x230
>[ 1602.434107]  __ret_from_fork+0x6c/0xb8
>[ 1602.434136]  ret_from_fork+0xa/0x30
>
>[ 1602.434190] read to 0x0000037fffda3008 of 8 bytes by task 15749 on cpu 0:
>[ 1602.434222]  n_tty_check_unthrottle+0x13e/0x1b0
>[ 1602.434252]  n_tty_read+0x1a4/0xb60
>[ 1602.434545]  tty_read+0x1b8/0x2f0
>[ 1602.434568]  vfs_read+0x2b6/0x498
>[ 1602.434585]  ksys_read+0xa2/0x150
>[ 1602.434600]  __s390x_sys_read+0x68/0x88
>[ 1602.434616]  do_syscall+0x1c6/0x210
>[ 1602.434633]  __do_syscall+0xc8/0xf0
>[ 1602.434651]  system_call+0x70/0x98
>
>[ 1602.434735] value changed: 0x00000000001238d2 -> 0x0000000000123982
>
>[ 1602.434773] Reported by Kernel Concurrency Sanitizer on:
>[ 1602.434796] CPU: 0 PID: 15749 Comm: sshd Kdump: loaded Not tainted 6.7.4-1.g9e758e0-default #1 openSUSE Tumbleweed (unreleased) b54db25b5c91e1f741a77b8c006738e22884ded0
>[ 1602.434839] Hardware name: IBM 8561 LT1 400 (z/VM 7.3.0)
>[ 1602.434865] ==================================================================
>[ 1602.468343] ==================================================================
>[ 1602.468377] BUG: KCSAN: data-race in n_tty_poll / n_tty_receive_buf_common
>
>[ 1602.468415] write (marked) to 0x0000037fffda3008 of 8 bytes by task 3307 on cpu 2:
>[ 1602.468439]  n_tty_receive_buf_common+0x342/0xb90
>[ 1602.468463]  n_tty_receive_buf2+0x50/0x70
>[ 1602.468485]  tty_ldisc_receive_buf+0x7e/0x100
>[ 1602.468511]  tty_port_default_receive_buf+0x6e/0xb0
>[ 1602.468538]  flush_to_ldisc+0x156/0x408
>[ 1602.468565]  process_one_work+0x3b6/0x838
>[ 1602.468592]  worker_thread+0x75e/0xb10
>[ 1602.468618]  kthread+0x21a/0x230
>[ 1602.468647]  __ret_from_fork+0x6c/0xb8
>[ 1602.468676]  ret_from_fork+0xa/0x30
>
>[ 1602.468727] read to 0x0000037fffda3008 of 8 bytes by task 15749 on cpu 0:
>[ 1602.468758]  n_tty_poll+0x148/0x3a8
>[ 1602.468787]  tty_poll+0xa6/0x128
>[ 1602.468846]  do_sys_poll+0x43c/0x840
>[ 1602.468867]  __s390x_sys_ppoll+0x110/0x148
>[ 1602.468887]  do_syscall+0x1c6/0x210
>[ 1602.468906]  __do_syscall+0xc8/0xf0
>[ 1602.468927]  system_call+0x70/0x98
>
>[ 1602.468965] value changed: 0x0000000000128133 -> 0x0000000000128137
>
>[ 1602.468998] Reported by Kernel Concurrency Sanitizer on:
>[ 1602.469018] CPU: 0 PID: 15749 Comm: sshd Kdump: loaded Not tainted 6.7.4-1.g9e758e0-default #1 openSUSE Tumbleweed (unreleased) b54db25b5c91e1f741a77b8c006738e22884ded0
>[ 1602.469060] Hardware name: IBM 8561 LT1 400 (z/VM 7.3.0)
>[ 1602.469085] ==================================================================
>[ 1602.676398] ==================================================================
>[ 1602.676440] BUG: KCSAN: data-race in n_tty_read / n_tty_receive_buf_common
>
>[ 1602.676478] write (marked) to 0x0000037fffda3008 of 8 bytes by task 4415 on cpu 1:
>[ 1602.676503]  n_tty_receive_buf_common+0x342/0xb90
>[ 1602.676526]  n_tty_receive_buf2+0x50/0x70
>[ 1602.676548]  tty_ldisc_receive_buf+0x7e/0x100
>[ 1602.676572]  tty_port_default_receive_buf+0x6e/0xb0
>[ 1602.676598]  flush_to_ldisc+0x156/0x408
>[ 1602.676623]  process_one_work+0x3b6/0x838
>[ 1602.676650]  worker_thread+0x75e/0xb10
>[ 1602.676675]  kthread+0x21a/0x230
>[ 1602.676705]  __ret_from_fork+0x6c/0xb8
>[ 1602.676738]  ret_from_fork+0xa/0x30
>
>[ 1602.676792] read to 0x0000037fffda3008 of 8 bytes by task 15749 on cpu 0:
>[ 1602.676822]  n_tty_read+0x5ea/0xb60
>[ 1602.676850]  tty_read+0x1b8/0x2f0
>[ 1602.676940]  vfs_read+0x2b6/0x498
>[ 1602.676956]  ksys_read+0xa2/0x150
>[ 1602.676970]  __s390x_sys_read+0x68/0x88
>[ 1602.676986]  do_syscall+0x1c6/0x210
>[ 1602.677002]  __do_syscall+0xc8/0xf0
>[ 1602.677020]  system_call+0x70/0x98
>
>[ 1602.677046] value changed: 0x0000000000142fc3 -> 0x0000000000143008
>
>[ 1602.677072] Reported by Kernel Concurrency Sanitizer on:
>[ 1602.677088] CPU: 0 PID: 15749 Comm: sshd Kdump: loaded Not tainted 6.7.4-1.g9e758e0-default #1 openSUSE Tumbleweed (unreleased) b54db25b5c91e1f741a77b8c006738e22884ded0
>[ 1602.677123] Hardware name: IBM 8561 LT1 400 (z/VM 7.3.0)
>[ 1602.677137] ==================================================================
>[ 1603.041942] ==================================================================
>[ 1603.041980] BUG: KCSAN: data-race in copy_from_read_buf / n_tty_receive_buf_common
>
>[ 1603.042017] write (marked) to 0x0000037fffda5260 of 8 bytes by task 15749 on cpu 0:
>[ 1603.042041]  copy_from_read_buf+0x12c/0x238
>[ 1603.042062]  n_tty_read+0x4ee/0xb60
>[ 1603.042082]  tty_read+0x1b8/0x2f0
>[ 1603.042107]  vfs_read+0x2b6/0x498
>[ 1603.042129]  ksys_read+0xa2/0x150
>[ 1603.042151]  __s390x_sys_read+0x68/0x88
>[ 1603.042175]  do_syscall+0x1c6/0x210
>[ 1603.042217]  __do_syscall+0xc8/0xf0
>[ 1603.042248]  system_call+0x70/0x98
>
>[ 1603.042299] read to 0x0000037fffda5260 of 8 bytes by task 4415 on cpu 1:
>[ 1603.042328]  n_tty_receive_buf_common+0x354/0xb90
>[ 1603.042358]  n_tty_receive_buf2+0x50/0x70
>[ 1603.042387]  tty_ldisc_receive_buf+0x7e/0x100
>[ 1603.042419]  tty_port_default_receive_buf+0x6e/0xb0
>[ 1603.042467]  flush_to_ldisc+0x156/0x408
>[ 1603.042484]  process_one_work+0x3b6/0x838
>[ 1603.042500]  worker_thread+0x75e/0xb10
>[ 1603.042515]  kthread+0x21a/0x230
>[ 1603.042534]  __ret_from_fork+0x6c/0xb8
>[ 1603.042550]  ret_from_fork+0xa/0x30
>
>[ 1603.042576] value changed: 0x0000000000172371 -> 0x000000000017245c
>
>[ 1603.042599] Reported by Kernel Concurrency Sanitizer on:
>[ 1603.042613] CPU: 1 PID: 4415 Comm: kworker/u130:4 Kdump: loaded Not tainted 6.7.4-1.g9e758e0-default #1 openSUSE Tumbleweed (unreleased) b54db25b5c91e1f741a77b8c006738e22884ded0
>[ 1603.042645] Hardware name: IBM 8561 LT1 400 (z/VM 7.3.0)
>[ 1603.042661] Workqueue: events_unbound flush_to_ldisc
>[ 1603.042682] ==================================================================
>[ 1613.066648] ==================================================================
>[ 1613.066698] BUG: KCSAN: data-race in tick_nohz_idle_stop_tick / tick_nohz_next_event
>
>[ 1613.066741] read to 0x000000006ee33bf8 of 4 bytes by task 0 on cpu 3:
>[ 1613.066762]  tick_nohz_next_event+0x12e/0x220
>[ 1613.066787]  tick_nohz_idle_stop_tick+0x2f4/0x560
>[ 1613.066813]  do_idle+0xd4/0x170
>[ 1613.066839]  cpu_startup_entry+0x40/0x48
>[ 1613.066864]  smp_start_secondary+0x202/0x230
>[ 1613.066893]  restart_int_handler+0x6a/0x80
>
>[ 1613.066941] write to 0x000000006ee33bf8 of 4 bytes by task 0 on cpu 0:
>[ 1613.066969]  tick_nohz_idle_stop_tick+0x3b0/0x560
>[ 1613.067000]  do_idle+0xd4/0x170
>[ 1613.067027]  cpu_startup_entry+0x40/0x48
>[ 1613.067057]  rest_init+0x132/0x148
>[ 1613.067090]  arch_call_rest_init+0x2c/0x30
>[ 1613.067122]  start_kernel+0x980/0xde8
>[ 1613.067205]  startup_continue+0x36/0x40
>
>[ 1613.067245] Reported by Kernel Concurrency Sanitizer on:
>[ 1613.067262] CPU: 0 PID: 0 Comm: swapper/0 Kdump: loaded Not tainted 6.7.4-1.g9e758e0-default #1 openSUSE Tumbleweed (unreleased) b54db25b5c91e1f741a77b8c006738e22884ded0
>[ 1613.067298] Hardware name: IBM 8561 LT1 400 (z/VM 7.3.0)
>[ 1613.067317] ==================================================================
>[ 1633.099144] ==================================================================
>[ 1633.099183] BUG: KCSAN: data-race in __flush_work.isra.0 / queue_work_on
>
>[ 1633.099220] read-write (marked) to 0x00000000872d1e08 of 8 bytes by task 15788 on cpu 1:
>[ 1633.099290]  queue_work_on+0x62/0xb8
>[ 1633.099313]  tty_insert_flip_string_and_push_buffer+0xde/0x140
>[ 1633.099342]  pty_write+0xa2/0xd0
>[ 1633.099367]  n_tty_write+0x306/0x840
>[ 1633.099390]  file_tty_write.isra.0+0x2a8/0x490
>[ 1633.099421]  tty_write+0x48/0x68
>[ 1633.099448]  vfs_write+0x33c/0x588
>[ 1633.099476]  ksys_write+0xa2/0x150
>[ 1633.099503]  __s390x_sys_write+0x68/0x88
>[ 1633.099531]  do_syscall+0x1c6/0x210
>[ 1633.099561]  __do_syscall+0xc8/0xf0
>[ 1633.099592]  system_call+0x70/0x98
>
>[ 1633.099646] write to 0x00000000872d1e08 of 8 bytes by task 15749 on cpu 0:
>[ 1633.099679]  __flush_work.isra.0+0x202/0x5b0
>[ 1633.099872]  flush_work+0x34/0x50
>[ 1633.099894]  tty_buffer_flush_work+0x34/0x48
>[ 1633.099913]  n_tty_poll+0x25c/0x3a8
>[ 1633.099936]  tty_poll+0xa6/0x128
>[ 1633.099954]  do_sys_poll+0x43c/0x840
>[ 1633.099973]  __s390x_sys_ppoll+0x110/0x148
>[ 1633.099992]  do_syscall+0x1c6/0x210
>[ 1633.100025]  __do_syscall+0xc8/0xf0
>[ 1633.100049]  system_call+0x70/0x98
>
>[ 1633.100090] Reported by Kernel Concurrency Sanitizer on:
>[ 1633.100113] CPU: 0 PID: 15749 Comm: sshd Kdump: loaded Not tainted 6.7.4-1.g9e758e0-default #1 openSUSE Tumbleweed (unreleased) b54db25b5c91e1f741a77b8c006738e22884ded0
>[ 1633.100158] Hardware name: IBM 8561 LT1 400 (z/VM 7.3.0)
>[ 1633.100184] ==================================================================
>[ 1633.538311] ==================================================================
>[ 1633.538351] BUG: KCSAN: data-race in n_tty_poll / n_tty_receive_buf_common
>
>[ 1633.538389] write (marked) to 0x0000037fffda3008 of 8 bytes by task 9914 on cpu 1:
>[ 1633.538413]  n_tty_receive_buf_common+0x342/0xb90
>[ 1633.538436]  n_tty_receive_buf2+0x50/0x70
>[ 1633.538458]  tty_ldisc_receive_buf+0x7e/0x100
>[ 1633.538483]  tty_port_default_receive_buf+0x6e/0xb0
>[ 1633.538509]  flush_to_ldisc+0x156/0x408
>[ 1633.538534]  process_one_work+0x3b6/0x838
>[ 1633.538560]  worker_thread+0x75e/0xb10
>[ 1633.538587]  kthread+0x21a/0x230
>[ 1633.538618]  __ret_from_fork+0x6c/0xb8
>[ 1633.538647]  ret_from_fork+0xa/0x30
>
>[ 1633.538703] read to 0x0000037fffda3008 of 8 bytes by task 15749 on cpu 0:
>[ 1633.538735]  n_tty_poll+0x368/0x3a8
>[ 1633.538765]  tty_poll+0xa6/0x128
>[ 1633.538800]  do_sys_poll+0x43c/0x840
>[ 1633.538881]  __s390x_sys_ppoll+0x110/0x148
>[ 1633.538904]  do_syscall+0x1c6/0x210
>[ 1633.538924]  __do_syscall+0xc8/0xf0
>[ 1633.538945]  system_call+0x70/0x98
>
>[ 1633.538978] value changed: 0x00000000001b8c35 -> 0x00000000001b8c83
>
>[ 1633.539082] Reported by Kernel Concurrency Sanitizer on:
>[ 1633.539104] CPU: 0 PID: 15749 Comm: sshd Kdump: loaded Not tainted 6.7.4-1.g9e758e0-default #1 openSUSE Tumbleweed (unreleased) b54db25b5c91e1f741a77b8c006738e22884ded0
>[ 1633.539149] Hardware name: IBM 8561 LT1 400 (z/VM 7.3.0)
>[ 1633.539176] ==================================================================
>[ 1633.669784] ==================================================================
>[ 1633.669824] BUG: KCSAN: data-race in ktime_get_real_seconds / timekeeping_advance
>
>[ 1633.669866] write to 0x000000006f80ca08 of 280 bytes by interrupt on cpu 1:
>[ 1633.669889]  timekeeping_advance+0x70e/0xdd8
>[ 1633.669913]  update_wall_time+0x30/0x60
>[ 1633.669936]  tick_do_update_jiffies64+0x198/0x238
>[ 1633.669964]  tick_sched_do_timer+0x144/0x148
>[ 1633.669995]  tick_nohz_highres_handler+0x6e/0x108
>[ 1633.670023]  __hrtimer_run_queues+0x2d2/0x4d8
>[ 1633.670051]  hrtimer_interrupt+0x26a/0x528
>[ 1633.670079]  clock_comparator_work+0x74/0x90
>[ 1633.670108]  do_IRQ+0x8a/0xa8
>[ 1633.670138]  do_irq_async+0x7e/0x108
>[ 1633.670176]  do_ext_irq+0xd2/0x120
>[ 1633.670209]  ext_int_handler+0xc4/0xf0
>[ 1633.670243]  __tsan_read_range+0x162/0x1a8
>[ 1633.670283]  delay_loop+0x90/0xd0
>[ 1633.670331]  __udelay+0x36/0x48
>[ 1633.670348]  kcsan_setup_watchpoint+0x21a/0x568
>[ 1633.670366]  delay_loop+0x90/0xd0
>[ 1633.670383]  __udelay+0x36/0x48
>[ 1633.670399]  kcsan_setup_watchpoint+0x21a/0x568
>[ 1633.670417]  delay_loop+0x90/0xd0
>[ 1633.670433]  __udelay+0x36/0x48
>[ 1633.670449]  kcsan_setup_watchpoint+0x21a/0x568
>[ 1633.670467]  delay_loop+0x90/0xd0
>[ 1633.670483]  __udelay+0x36/0x48
>[ 1633.670530]  kcsan_setup_watchpoint+0x21a/0x568
>[ 1633.670550]  ktime_get_real_seconds+0x32/0x50
>[ 1633.670568]  tty_update_time+0x34/0x190
>[ 1633.670618]  file_tty_write.isra.0+0x428/0x490
>[ 1633.670647]  tty_write+0x48/0x68
>[ 1633.670674]  vfs_write+0x33c/0x588
>[ 1633.670701]  ksys_write+0xa2/0x150
>[ 1633.670727]  __s390x_sys_write+0x68/0x88
>[ 1633.670755]  do_syscall+0x1c6/0x210
>[ 1633.670793]  __do_syscall+0xc8/0xf0
>[ 1633.670825]  system_call+0x70/0x98
>
>[ 1633.670872] read to 0x000000006f80ca78 of 8 bytes by task 15788 on cpu 1:
>[ 1633.670895]  ktime_get_real_seconds+0x32/0x50
>[ 1633.670915]  tty_update_time+0x34/0x190
>[ 1633.670936]  file_tty_write.isra.0+0x428/0x490
>[ 1633.670960]  tty_write+0x48/0x68
>[ 1633.670981]  vfs_write+0x33c/0x588
>[ 1633.671001]  ksys_write+0xa2/0x150
>[ 1633.671020]  __s390x_sys_write+0x68/0x88
>[ 1633.671042]  do_syscall+0x1c6/0x210
>[ 1633.671065]  __do_syscall+0xc8/0xf0
>[ 1633.671090]  system_call+0x70/0x98
>
>[ 1633.671132] Reported by Kernel Concurrency Sanitizer on:
>[ 1633.671155] CPU: 1 PID: 15788 Comm: dmesg Kdump: loaded Not tainted 6.7.4-1.g9e758e0-default #1 openSUSE Tumbleweed (unreleased) b54db25b5c91e1f741a77b8c006738e22884ded0
>[ 1633.671199] Hardware name: IBM 8561 LT1 400 (z/VM 7.3.0)
>[ 1633.671225] ==================================================================
>[ 1633.734569] ==================================================================
>[ 1633.734616] BUG: KCSAN: data-race in n_tty_check_unthrottle / n_tty_receive_buf_common
>
>[ 1633.734674] write (marked) to 0x0000037fffda3008 of 8 bytes by task 9914 on cpu 1:
>[ 1633.734706]  n_tty_receive_buf_common+0x342/0xb90
>[ 1633.734737]  n_tty_receive_buf2+0x50/0x70
>[ 1633.734765]  tty_ldisc_receive_buf+0x7e/0x100
>[ 1633.734797]  tty_port_default_receive_buf+0x6e/0xb0
>[ 1633.734841]  flush_to_ldisc+0x156/0x408
>[ 1633.734857]  process_one_work+0x3b6/0x838
>[ 1633.734874]  worker_thread+0x75e/0xb10
>[ 1633.734889]  kthread+0x21a/0x230
>[ 1633.734907]  __ret_from_fork+0x6c/0xb8
>[ 1633.734924]  ret_from_fork+0xa/0x30
>
>[ 1633.734954] read to 0x0000037fffda3008 of 8 bytes by task 15749 on cpu 2:
>[ 1633.734973]  n_tty_check_unthrottle+0x13e/0x1b0
>[ 1633.734990]  n_tty_read+0x1a4/0xb60
>[ 1633.735006]  tty_read+0x1b8/0x2f0
>[ 1633.735025]  vfs_read+0x2b6/0x498
>[ 1633.735040]  ksys_read+0xa2/0x150
>[ 1633.735054]  __s390x_sys_read+0x68/0x88
>[ 1633.735069]  do_syscall+0x1c6/0x210
>[ 1633.735085]  __do_syscall+0xc8/0xf0
>[ 1633.735109]  system_call+0x70/0x98
>
>[ 1633.735135] value changed: 0x00000000001d291d -> 0x00000000001d2953
>
>[ 1633.735159] Reported by Kernel Concurrency Sanitizer on:
>[ 1633.735174] CPU: 2 PID: 15749 Comm: sshd Kdump: loaded Not tainted 6.7.4-1.g9e758e0-default #1 openSUSE Tumbleweed (unreleased) b54db25b5c91e1f741a77b8c006738e22884ded0
>[ 1633.735207] Hardware name: IBM 8561 LT1 400 (z/VM 7.3.0)
>[ 1633.735223] ==================================================================

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Attachments on bug 1220085: 872851 | 872854