Re: Odd Ooops jbd ??

[Jan Kara <jack@suse.cz>]

> here is a error i keep bumping into with 2.6.24-rc1 (git11)
> 
> the trigger is a ISDN call from one port to another (loopback cable) 
> within asterisk i have not been able to replicate it in any other way 
> the error may be in the ISDN
> what i cant understand is why it would affect the fs.
> 
> shortly after this occurs there many oopses letting it run yesterday 
> corrupted the superblock on the / fs
> 
> i will continue to try narrow it down any ideas are welcome.
> 
  Actually, you seem to have snipped the reason why the kernel has
oopsed. Can you post it please? Thanks.

> printing eip: c0177656 *pde = 00000000
> Oops: 0000 [#1] PREEMPT SMP
> 
> ...
> 
> Pid: 564, comm: kjournald Not tainted (2.6.24-rc1-git11-i386-smp #4)
> EIP: 0060:[<c0177656>] EFLAGS: 00010006 CPU: 1
> EIP is at kmem_cache_alloc+0x5d/0xa6
> EAX: 00000000 EBX: 00000282 ECX: c03621d0 EDX: 74736e69
> ESI: c1c164fc EDI: 74736e69 EBP: c03621d0 ESP: c359de80
> DS: 007b ES: 007b FS: 00d8 GS: 0000 SS: 0068
> Process kjournald (pid: 564, ti=c359c000 task=c352d800 task.ti=c359c000)
> Stack: c352d800 00000001 74736e69 00011200 00000092 c2035600 c3179380 
> 00000001
>       00011210 c015d385 00000010 c019797d 00000001 00000002 c359dee8 
> c019797d
>       00000000 c3179380 00000001 00000000 c019a0fa 00000000 c201c2a0 
> 00000010
> Call Trace:
> [<c015d385>] mempool_alloc+0x24/0xc2
> [<c019797d>] sync_buffer+0x0/0x33
> [<c019797d>] sync_buffer+0x0/0x33
> [<c019a0fa>] bio_alloc_bioset+0x8c/0xe6
> [<c011e0cb>] __wake_up_common+0x38/0x5d
> [<c019a15f>] bio_alloc+0xb/0x17
> [<c0196959>] submit_bh+0x6b/0xf5
> [<f88c2b47>] journal_do_submit_data+0x23/0x2b [jbd]
> [<f88c3054>] journal_commit_transaction+0x4a7/0xcff [jbd]
> [<c010316d>] __switch_to+0x94/0x10b
> [<c02b49b7>] schedule+0x4b9/0x4f2
> [<c012d019>] lock_timer_base+0x19/0x35
> [<c012d079>] try_to_del_timer_sync+0x44/0x4a
> [<f88c61f3>] kjournald+0xb0/0x1ec [jbd]
> [<c01362a4>] autoremove_wake_function+0x0/0x33
> [<f88c6143>] kjournald+0x0/0x1ec [jbd]
> [<c01361d5>] kthread+0x38/0x5f
> [<c013619d>] kthread+0x0/0x5f
> [<c0105347>] kernel_thread_helper+0x7/0x10
> =======================
> Code: 3e 85 ff 89 7c 24 08 75 1b 89 14 24 8b 54 24 0c 83 c9 ff 89 e8 89 
> 74 24 04 e8 d8 f8 ff ff 89 44 24 08 eb 0c 8b 54 24 08 8b 46 0c <8b> 04 
> 82 89 06 89 d8
> 50 9d 0f 1f 84 00 00 00 00 00 66 83 7c 24
> EIP: [<c0177656>] kmem_cache_alloc+0x5d/0xa6 SS:ESP 0068:c359de80

								Honza
-- 
Jan Kara <jack@suse.cz>
SuSE CR Labs
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