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Bugzilla – Full Text Bug Listing |
| Summary: | Kernel oops when resizing lvm snapshot | ||
|---|---|---|---|
| Product: | [openSUSE] SUSE LINUX 10.0 | Reporter: | Ralf Müller <ralf> |
| Component: | Kernel | Assignee: | E-mail List <kernel-maintainers> |
| Status: | RESOLVED FIXED | QA Contact: | E-mail List <qa-bugs> |
| Severity: | Major | ||
| Priority: | P5 - None | ||
| Version: | Final | ||
| Target Milestone: | --- | ||
| Hardware: | Other | ||
| OS: | SuSE Linux 10.0 | ||
| Whiteboard: | |||
| Found By: | Customer | Services Priority: | |
| Business Priority: | Blocker: | --- | |
| Marketing QA Status: | --- | IT Deployment: | --- |
This problem seems to be fixed in vanilla 2.6.15.3 So it's fixed in the 10.1 beta kernel releases? Actually I don't know - which one is the current? I don't upgrade the system to 10.1 until it is released. I can temporarily switch to other kernels on this machine but the base system must be in sync with another production machine. Can you give me a link to the current 10.1 beta kernel source? Is it: http://ftp.opensuse.org/pub/opensuse/distribution/SL-OSS-factory/inst-source/suse/src/kernel-source-2.6.16_rc2_git5-3.src.rpm That source rpm is valid, although we've tracked mainline a little farther now. If this was fixed in 2.6.15.3, we should have the fix as well. I'll close this for now, please do reopen if you're still having problems. So this will not be fixed for 10.0? I had hoped that bugfixing is done at least for the last stable release - 10.1 maybe a nice thing to have but it is not ready yet. I just feel a bit uncomfortable when I see that 10.0 is discontinued while 10.1 is not there ... Or is this the wrong place to report such bugs - is there a suse.com place that is more appropriate for bugs in stable products? |
After the following sequence of commands I got the attached kernel oops: ("lvmtest" is an existing LV in VG "system") xentest:/usr/src # uname -a Linux xentest 2.6.13-15.7-xen #1 SMP Tue Nov 29 14:32:29 UTC 2005 i686 i686 i386 GNU/Linux xentest:/usr/src # modprobe dm-mod xentest:/usr/src # modprobe dm-snapshot xentest:/usr/src # lvcreate -L 50M -s -n lvmtest-snap1 /dev/system/lvmtest Rounding up size to full physical extent 52.00 MB Logical volume "lvmtest-snap1" created xentest:/usr/src # lvresize -L +50M /dev/system/lvmtest-snap1 Rounding up size to full physical extent 52.00 MB Extending logical volume lvmtest-snap1 to 104.00 MB Logical volume lvmtest-snap1 successfully resized xentest:/usr/src # lvcreate -L 50M -s -n lvmtest-snap2 /dev/system/lvmtest Rounding up size to full physical extent 52.00 MB Logical volume "lvmtest-snap2" created xentest:/usr/src # lvresize -L +50M /dev/system/lvmtest-snap2 Rounding up size to full physical extent 52.00 MB Extending logical volume lvmtest-snap2 to 104.00 MB device-mapper ioctl cmd 9 failed: Cannot allocate memory Couldn't load device 'system-lvmtest--snap1'. Problem reactivating lvmtest-snap2 Oops in /var/log/messages: Feb 9 15:03:36 xentest kernel: lvresize: page allocation failure. order:0, mode:0xd0 Feb 9 15:03:36 xentest kernel: [<c01516fb>] __alloc_pages+0x3eb/0x480 Feb 9 15:03:36 xentest kernel: [<c78ceb97>] alloc_pl+0x27/0x40 [dm_mod] Feb 9 15:03:36 xentest kernel: [<c78ced05>] client_alloc_pages+0x25/0x70 [dm_mod] Feb 9 15:03:36 xentest kernel: [<c78cf86c>] kcopyd_client_create+0x7c/0xf0 [dm_mod] Feb 9 15:03:36 xentest kernel: [<c7da38ea>] snapshot_ctr+0x32a/0x3a0 [dm_snapshot] Feb 9 15:03:36 xentest kernel: [<c78ca575>] realloc_argv+0x65/0x90 [dm_mod] Feb 9 15:03:36 xentest kernel: [<c78ca810>] dm_table_add_target+0x130/0x1d0 [dm_mod] Feb 9 15:03:36 xentest kernel: [<c78cd2f0>] populate_table+0x80/0xf0 [dm_mod] Feb 9 15:03:36 xentest kernel: [<c78cd360>] table_load+0x0/0x160 [dm_mod] Feb 9 15:03:36 xentest kernel: [<c78cd3b3>] table_load+0x53/0x160 [dm_mod] Feb 9 15:03:36 xentest kernel: [<c78cdef7>] ctl_ioctl+0xe7/0x130 [dm_mod] Feb 9 15:03:36 xentest kernel: [<c013a9d0>] autoremove_wake_function+0x0/0x50 Feb 9 15:03:36 xentest kernel: [<c01848ea>] do_ioctl+0x8a/0xa0 Feb 9 15:03:36 xentest kernel: [<c0184ab0>] vfs_ioctl+0x60/0x210 Feb 9 15:03:36 xentest kernel: [<c0170602>] vfs_read+0x102/0x190 Feb 9 15:03:36 xentest kernel: [<c0184caa>] sys_ioctl+0x4a/0xa0 Feb 9 15:03:36 xentest kernel: [<c0109ce9>] syscall_call+0x7/0xb Feb 9 15:03:36 xentest kernel: Mem-info: Feb 9 15:03:36 xentest kernel: DMA per-cpu: Feb 9 15:03:36 xentest kernel: cpu 0 hot: low 30, high 90, batch 15 used:0 Feb 9 15:03:36 xentest kernel: cpu 0 cold: low 0, high 30, batch 15 used:15 Feb 9 15:03:36 xentest kernel: Normal per-cpu: empty Feb 9 15:03:36 xentest kernel: HighMem per-cpu: empty Feb 9 15:03:36 xentest kernel: Free pages: 0kB (0kB HighMem) Feb 9 15:03:36 xentest kernel: Active:10112 inactive:7609 dirty:60 writeback:0 unstable:0 free:0 slab:3101 mapped:8902 pagetables:132 Feb 9 15:03:36 xentest kernel: DMA free:0kB min:1312kB low:1640kB high:1968kB active:40448kB inactive:30436kB present:108192kB pages_scanned:0 all_unreclaimable? no Feb 9 15:03:36 xentest kernel: lowmem_reserve[]: 0 0 0 Feb 9 15:03:36 xentest kernel: Normal free:0kB min:0kB low:0kB high:0kB active:0kB inactive:0kB present:0kB pages_scanned:0 all_unreclaimable? no Feb 9 15:03:36 xentest kernel: lowmem_reserve[]: 0 0 0 Feb 9 15:03:36 xentest kernel: HighMem free:0kB min:128kB low:160kB high:192kB active:0kB inactive:0kB present:0kB pages_scanned:0 all_unreclaimable? no Feb 9 15:03:36 xentest kernel: lowmem_reserve[]: 0 0 0 Feb 9 15:03:36 xentest kernel: DMA: 0*4kB 0*8kB 0*16kB 0*32kB 0*64kB 0*128kB 0*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB = 0kB Feb 9 15:03:36 xentest kernel: Normal: empty Feb 9 15:03:36 xentest kernel: HighMem: empty Feb 9 15:03:36 xentest kernel: Swap cache: add 829, delete 829, find 0/0, race 0+0 Feb 9 15:03:36 xentest kernel: Free swap = 1045252kB Feb 9 15:03:36 xentest kernel: Total swap = 1048568kB Feb 9 15:03:36 xentest kernel: Free swap: 1045252kB Feb 9 15:03:36 xentest kernel: 27048 pages of RAM Feb 9 15:03:36 xentest kernel: 0 pages of HIGHMEM Feb 9 15:03:36 xentest kernel: 1635 reserved pages Feb 9 15:03:36 xentest kernel: 15031 pages shared Feb 9 15:03:36 xentest kernel: 0 pages swap cached Feb 9 15:03:36 xentest kernel: 60 pages dirty Feb 9 15:03:36 xentest kernel: 0 pages writeback Feb 9 15:03:36 xentest kernel: 8902 pages mapped Feb 9 15:03:36 xentest kernel: 3101 pages slab Feb 9 15:03:36 xentest kernel: 132 pages pagetables Feb 9 15:03:36 xentest kernel: device-mapper: Could not create kcopyd client Feb 9 15:03:36 xentest kernel: device-mapper: error adding target to table