From: Juergen Kreileder <jk@blackdown.de>
To: Alasdair G Kergon <agk@redhat.com>
Cc: Andrew Morton <akpm@osdl.org>, linux-kernel@vger.kernel.org
Subject: BUG at drivers/md/kcopyd.c:146 (was: [PATCH 1/9] device-mapper snapshot: load metadata on creation)
Date: Sat, 15 Apr 2006 13:19:51 +0200 [thread overview]
Message-ID: <87odz3f5m0.fsf@blackdown.de> (raw)
In-Reply-To: <20060120211116.GB4724@agk.surrey.redhat.com> (Alasdair G. Kergon's message of "Fri, 20 Jan 2006 21:11:16 +0000")
Alasdair G. Kergon <agk@redhat.com> writes:
> Move snapshot metadata loading to happen when the table is created
> instead of when the device is resumed. Writes to the origin device
> don't trigger exceptions until each snapshot table becomes active
> when resume() is called on each snapshot.
>
> If you're using lvm2, for this patch to work properly you should
> update to lvm2 version 2.02.01 or later and device-mapper version
> 1.02.02 or later.
I'm using devmapper 1.02.03 and lvm2 2.02.02 with 2.6.16.2,
nevertheless my logical volumes locked up three time when removing
snapshots so far. Twice I got BUG at drivers/md/kcopyd.c:146, the
third time logging stopped at the first lvremove.
2.6.15 and earlier kernels in combination with older tools worked fine
over the last year.
Juergen
kernel BUG at drivers/md/kcopyd.c:146!
invalid opcode: 0000 [#1]
CPU: 0
EIP: 0060:[client_free_pages+42/64] Not tainted VLI
EFLAGS: 00010283 (2.6.16.2-exec-shield #1)
EIP is at client_free_pages+0x2a/0x40
eax: 00000100 ebx: f6a92880 ecx: c18df0c0 edx: 00000000
esi: f4636880 edi: c044b13c ebp: f88dc040 esp: e855fdb8
ds: 007b es: 007b ss: 0068
Process lvremove (pid: 3034, threadinfo=e855e000 task=d2f4ea70)
Stack: <0>f6a92880 c02a6382 f545fac0 c02a85ad f88dc040 f6002d80 00000000 00000000
c02a22c6 00000008 f6002d80 f6a92c60 00000004 c02a4a40 c02a3fc3 c03b894c
f88aa000 c02a4a74 00000000 00000000 f88aa000 c02a418e 00000001 00000202
Call Trace:
[kcopyd_client_destroy+18/80] kcopyd_client_destroy+0x12/0x50
[snapshot_dtr+173/240] snapshot_dtr+0xad/0xf0
[dm_table_put+86/208] dm_table_put+0x56/0xd0
[dev_remove+0/128] dev_remove+0x0/0x80
[__hash_remove+99/128] __hash_remove+0x63/0x80
[dev_remove+52/128] dev_remove+0x34/0x80
[ctl_ioctl+430/688] ctl_ioctl+0x1ae/0x2b0
[ctl_ioctl+0/688] ctl_ioctl+0x0/0x2b0
[do_ioctl+105/112] do_ioctl+0x69/0x70
[vfs_ioctl+92/640] vfs_ioctl+0x5c/0x280
[sys_ioctl+61/112] sys_ioctl+0x3d/0x70
[sysenter_past_esp+86/121] sysenter_past_esp+0x56/0x79
Code: 00 53 89 c3 8b 40 0c 39 43 10 75 1f 8b 43 08 e8 bd ff ff ff c7 43 08 00 00 00 00 c7 43 0c 00 00 00 00 c7 43 10 00 00 00 00 5b c3 <0f> 0b 92 00 68 a7 37 c0 eb d7 8d b6 00 00 00 00 8d bf 00 00 00
<1>Unable to handle kernel paging request at virtual address f8929fa8
printing eip:
c02a9c90
*pde = 00000000
Oops: 0002 [#2]
CPU: 0
EIP: 0060:[persistent_commit+64/272] Not tainted VLI
EFLAGS: 00010286 (2.6.16.2-exec-shield #1)
EIP is at persistent_commit+0x40/0x110
eax: f8929fa0 ebx: f4c59840 ecx: 00000000 edx: 0000076b
esi: 000003fd edi: 00000000 ebp: c02a8ec0 esp: ee497ef4
ds: 007b es: 007b ss: 0068
Process kcopyd (pid: 2511, threadinfo=ee496000 task=e65d5030)
Stack: <0>0000076b 00000000 000003fd 00000000 c1b57cf4 f545fac0 c1b57cf4 c02a8e70
c02a8eb2 c1b57cf4 c86cf1e0 00000000 c02a61fd 00000000 00000282 c86cf1e0
c03b8a08 c02a61b0 c02a6a38 00000000 c044b104 f4bab580 00000296 00000000
Call Trace:
[copy_callback+0/80] copy_callback+0x0/0x50
[copy_callback+66/80] copy_callback+0x42/0x50
[run_complete_job+77/112] run_complete_job+0x4d/0x70
[run_complete_job+0/112] run_complete_job+0x0/0x70
[process_jobs+24/192] process_jobs+0x18/0xc0
[do_work+15/45] do_work+0xf/0x2d
[run_workqueue+94/208] run_workqueue+0x5e/0xd0
[do_work+0/45] do_work+0x0/0x2d
[worker_thread+238/288] worker_thread+0xee/0x120
[default_wake_function+0/16] default_wake_function+0x0/0x10
[kthread+214/224] kthread+0xd6/0xe0
[worker_thread+0/288] worker_thread+0x0/0x120
[kthread+0/224] kthread+0x0/0xe0
[kernel_thread_helper+5/16] kernel_thread_helper+0x5/0x10
Code: 31 ff 89 34 24 8b 72 0c 89 7c 24 0c 89 74 24 08 8b 53 20 8d 42 01 89 43 20 89 d8 e8 ab f9 ff ff 85 c0 74 12 8b 14 24 8b 4c 24 04 <89> 70 08 89 78 0c 89 10 89 48 04 8b 43 28 8b 53 2c 8d 14 c2 40
kernel BUG at drivers/md/kcopyd.c:146!
invalid opcode: 0000 [#1]
CPU: 0
EIP: 0060:[client_free_pages+42/64] Not tainted VLI
EFLAGS: 00010283 (2.6.16.2-exec-shield #1)
EIP is at client_free_pages+0x2a/0x40
eax: 00000100 ebx: f628c520 ecx: c18df0c0 edx: 00000000
esi: eeb1a660 edi: c044b13c ebp: f88d8040 esp: eb26bdb8
ds: 007b es: 007b ss: 0068
Process lvremove (pid: 5735, threadinfo=eb26a000 task=f0522a70)
Stack: <0>f628c520 c02a6382 f65ca1c0 c02a85ad f88d8040 f1e1e3c0 00000000 00000000
c02a22c6 00000008 f1e1e3c0 f628c2a0 00000004 c02a4a40 c02a3fc3 c03b894c
f88aa000 c02a4a74 00000246 00000000 f88aa000 c02a418e 00000001 00000202
Call Trace:
[kcopyd_client_destroy+18/80] kcopyd_client_destroy+0x12/0x50
[snapshot_dtr+173/240] snapshot_dtr+0xad/0xf0
[dm_table_put+86/208] dm_table_put+0x56/0xd0
[dev_remove+0/128] dev_remove+0x0/0x80
[__hash_remove+99/128] __hash_remove+0x63/0x80
[dev_remove+52/128] dev_remove+0x34/0x80
[ctl_ioctl+430/688] ctl_ioctl+0x1ae/0x2b0
[ctl_ioctl+0/688] ctl_ioctl+0x0/0x2b0
[do_ioctl+105/112] do_ioctl+0x69/0x70
[vfs_ioctl+92/640] vfs_ioctl+0x5c/0x280
[sys_ioctl+61/112] sys_ioctl+0x3d/0x70
[sysenter_past_esp+86/121] sysenter_past_esp+0x56/0x79
Code: 00 53 89 c3 8b 40 0c 39 43 10 75 1f 8b 43 08 e8 bd ff ff ff c7 43 08 00 00 00 00 c7 43 0c 00 00 00 00 c7 43 10 00 00 00 00 5b c3 <0f> 0b 92 00 68 a7 37 c0 eb d7 8d b6 00 00 00 00 8d bf 00 00 00
<1>Unable to handle kernel NULL pointer dereference at virtual address 00000034
printing eip:
c01551a5
*pde = 2b207001
*pte = 2e12c067
Oops: 0000 [#2]
CPU: 0
EIP: 0060:[bio_add_page+21/80] Not tainted VLI
EFLAGS: 00010286 (2.6.16.2-exec-shield #1)
EIP is at bio_add_page+0x15/0x50
eax: 00000000 ebx: e84ef580 ecx: 00001000 edx: c15da5c0
esi: c15da5c0 edi: ef705f04 ebp: ee8ba20c esp: ef705e74
ds: 007b es: 007b ss: 0068
Process kcopyd (pid: 5203, threadinfo=ef704000 task=f0f2a030)
Stack: <0>0000000c 00000010 00000000 00000010 e84ef580 c02a5c4b 00000000 ee8ba20c
00000001 00000001 00000000 00000000 c02a59f0 c02a5a10 00000000 ef4af780
00000000 00001000 c15da5c0 00000001 00000001 ee8ba20c c02a6950 c02a5d28
Call Trace:
[dispatch_io+299/400] dispatch_io+0x12b/0x190
[list_get_page+0/32] list_get_page+0x0/0x20
[list_next_page+0/16] list_next_page+0x0/0x10
[complete_io+0/208] complete_io+0x0/0xd0
[async_io+120/208] async_io+0x78/0xd0
[dm_io_async+74/96] dm_io_async+0x4a/0x60
[complete_io+0/208] complete_io+0x0/0xd0
[list_get_page+0/32] list_get_page+0x0/0x20
[list_next_page+0/16] list_next_page+0x0/0x10
[run_io_job+0/144] run_io_job+0x0/0x90
[run_io_job+124/144] run_io_job+0x7c/0x90
[complete_io+0/208] complete_io+0x0/0xd0
[process_jobs+24/192] process_jobs+0x18/0xc0
[run_workqueue+94/208] run_workqueue+0x5e/0xd0
[do_work+0/45] do_work+0x0/0x2d
[worker_thread+238/288] worker_thread+0xee/0x120
[default_wake_function+0/16] default_wake_function+0x0/0x10
[kthread+214/224] kthread+0xd6/0xe0
[worker_thread+0/288] worker_thread+0x0/0x120
[kthread+0/224] kthread+0x0/0xe0
[kernel_thread_helper+5/16] kernel_thread_helper+0x5/0x10
Code: 14 89 1c 24 e8 fd fd ff ff 83 c4 0c 5b c3 90 8d b4 26 00 00 00 00 83 ec 14 89 5c 24 0c 89 74 24 10 89 c3 8b 40 08 89 d6 8b 40 50 <8b> 40 34 0f b7 90 38 01 00 00 89 0c 24 89 f1 89 54 24 08 8b 54
--
Juergen Kreileder, Blackdown Java-Linux Team
http://blog.blackdown.de/
next prev parent reply other threads:[~2006-04-15 11:20 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2006-01-20 21:11 [PATCH 1/9] device-mapper snapshot: load metadata on creation Alasdair G Kergon
2006-01-23 5:33 ` Andrew Morton
2006-01-23 15:34 ` Alasdair G Kergon
2006-04-15 11:19 ` Juergen Kreileder [this message]
2006-04-20 17:05 ` BUG at drivers/md/kcopyd.c:146 (was: [PATCH 1/9] device-mapper snapshot: load metadata on creation) Alasdair G Kergon
2006-04-20 19:48 ` Andrew Morton
2006-04-21 15:12 ` BUG at drivers/md/kcopyd.c:146 Juergen Kreileder
2006-04-24 18:31 ` Juergen Kreileder
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=87odz3f5m0.fsf@blackdown.de \
--to=jk@blackdown.de \
--cc=agk@redhat.com \
--cc=akpm@osdl.org \
--cc=linux-kernel@vger.kernel.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.