Re: Crash on 2.6.21.7 Vanilla + DRBD 0.7

David Chinner
2007-10-04T23:10:49Z

On Thu, Oct 04, 2007 at 03:33:02PM +0200, vindex+lists-xfs@apartia.org wrote:
>
> Hi,
>
> I did compile a fresh 2.6.21.7 kernel from kernel.org (no distro patch,
> ....), and latest svn (3062) 0.7.X drbd.
>
> After just 2 days of uptime, I did experience another crash.
>
> I wonder if it is an XFS related bug, a DRBD one, or related to XFS on
> top of DRBD.
>
> This bug seems to occur with intensive IO operations.
>
> What do you think about it ?
>
> Thanks
>
>
> Oct 3 18:55:23 kernel: Oops: 0002 [#1]
> Oct 3 18:55:23 kernel: SMP
> Oct 3 18:55:23 kernel: CPU: 7
> Oct 3 18:55:23 kernel: EIP: 0060:[<c016540c>] Not tainted VLI
> Oct 3 18:55:23 kernel: EFLAGS: 00010046 (2.6.21-dl380-g5-20071001 #1)
> Oct 3 18:55:23 kernel: EIP is at cache_alloc_refill+0x11c/0x4f0

Use after free somewhere, i'd say. Turn on slab/slub poisoning and
other memory debugging options and see where it panics next
time.

Cheers,

Dave.
--
Dave Chinner
Principal Engineer
SGI Australian Software Group