Bug 1221884 - Kernel panics kworker/3:2
Summary: Kernel panics kworker/3:2
Status: RESOLVED DUPLICATE of bug 1220814
Alias: None
Product: openSUSE Tumbleweed
Classification: openSUSE
Component: Kernel (show other bugs)
Version: Current
Hardware: Other Other
: P5 - None : Normal (vote)
Target Milestone: ---
Assignee: openSUSE Kernel Bugs
QA Contact: E-mail List
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Blocks:
 
Reported: 2024-03-23 07:08 UTC by Luna D Dragon
Modified: 2024-04-19 13:55 UTC (History)
1 user (show)

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Description Luna D Dragon 2024-03-23 07:08:46 UTC 
Over the past few weeks I've been suffering from kernel panics so I setup `kdump`. Today I had another kernel panic and using crash I have gotten a backtrace

```
PID: 4288     TASK: ffff8e18c865af40  CPU: 3    COMMAND: "kworker/3:2"
 #0 [ffffabe5a583fb48] machine_kexec at ffffffffa108fe0f
 #1 [ffffabe5a583fba0] __crash_kexec at ffffffffa11c7e0e
 #2 [ffffabe5a583fc60] crash_kexec at ffffffffa11c92a4
 #3 [ffffabe5a583fc68] oops_end at ffffffffa10457c4
 #4 [ffffabe5a583fc88] page_fault_oops at ffffffffa10a53f1
 #5 [ffffabe5a583fd08] exc_page_fault at ffffffffa1ccfc21
 #6 [ffffabe5a583fd30] asm_exc_page_fault at ffffffffa1e012a6
    [exception RIP: rb_first+15]
    RIP: ffffffffa1cb7a8f  RSP: ffffabe5a583fde0  RFLAGS: 00010206
    RAX: 0000000000003593  RBX: ffff8e18842b7780  RCX: ffffcd4cdc678a90
    RDX: 0000000000003593  RSI: 0000000000000000  RDI: ffff8e1886681498
    RBP: ffff8e22b4bd9d80   R8: 0000000000000246   R9: 00000000010000ff
    R10: 00000000010000ff  R11: fefefefefefefeff  R12: 0000000000000000
    R13: ffff8e1886681498  R14: ffff8e19216b3000  R15: ffff8e18817e8ab0
    ORIG_RAX: ffffffffffffffff  CS: 0010  SS: 0000
 #7 [ffffabe5a583fde0] simple_xattrs_free at ffffffffa1453ba9
 #8 [ffffabe5a583fe08] kernfs_put at ffffffffa14dd160
 #9 [ffffabe5a583fe30] css_free_rwork_fn at ffffffffa11d59d5
#10 [ffffabe5a583fe68] process_one_work at ffffffffa10e8635
#11 [ffffabe5a583fea8] worker_thread at ffffffffa10e97e5
#12 [ffffabe5a583fef8] kthread at ffffffffa10f38c5
#13 [ffffabe5a583ff30] ret_from_fork at ffffffffa1050f41
#14 [ffffabe5a583ff50] ret_from_fork_asm at ffffffffa100383b
```
Please inform me if more information/data is required I will do my best to provide it
Comment 1 Anthony Iliopoulos 2024-03-23 11:20:12 UTC 
looks like another instance of bsc#1220814
Comment 2 Anthony Iliopoulos 2024-04-17 16:59:18 UTC 
I think upstream commit 4207b556e62f ("kernfs: RCU protect kernfs_nodes and avoid kernfs_idr_lock in kernfs_find_and_get_node_by_id()") fixes this issue, and this was backported to v6.8.6 which is now available in TW.

Could you please give it a try and see if this is still reproducible?
Comment 3 Anthony Iliopoulos 2024-04-19 13:55:59 UTC 
closing as dup of 1220814.

*** This bug has been marked as a duplicate of bug 1220814 ***