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Re: 2.6.30-rc6: BUG at fs/xfs/support/debug.c:109!

To: Lachlan McIlroy <lmcilroy@xxxxxxxxxx>
Subject: Re: 2.6.30-rc6: BUG at fs/xfs/support/debug.c:109!
From: Alexander Beregalov <a.beregalov@xxxxxxxxx>
Date: Thu, 2 Jul 2009 14:38:36 +0400
Cc: Kernel Testers List <kernel-testers@xxxxxxxxxxxxxxx>, xfs@xxxxxxxxxxx, Dave Chinner <david@xxxxxxxxxxxxx>
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2009/7/2 Lachlan McIlroy <lmcilroy@xxxxxxxxxx>:
> Alexander,
>
> Are you running with this fix?
>
> http://git.kernel.org/?p=linux/kernel/git/stable/linux-2.6.29.y.git;a=commitdiff;h=d415867e0abc35e3b2f0d4196e98c339d6fe29a2

Yes, I use 2.6.31-rc1-git and it contains this fix.
>
> I've seen this assertion before and the above patch fixed it
> for me.  Hmmm, looks like you're running a recent kernel so
> you should have this fix - maybe the fix wasn't quite right.
>
> Lachlan
>
>
> ----- "Alexander Beregalov" <a.beregalov@xxxxxxxxx> wrote:
>
>> 2009/6/5 Alexander Beregalov <a.beregalov@xxxxxxxxx>:
>> > 2009/6/4 Dave Chinner <david@xxxxxxxxxxxxx>:
>> >> On Mon, Jun 01, 2009 at 07:22:56PM +0400, Alexander Beregalov
>> wrote:
>> >>> Hi
>> >>>
>> >>> Assertion failed: *nmap >= 1, file: fs/xfs/xfs_bmap.c, line: 4846
>> >> .....
>> >>> Call Trace:
>> >>>  [<ffffffff803d6bad>] xfs_bmapi+0xad/0x1ad0
>> >>>  [<ffffffff803ee5c0>] xfs_dir2_leaf_getdents+0x640/0x7b0
>> >>>  [<ffffffff803e975c>] xfs_readdir+0x12c/0x140
>> >>>  [<ffffffff80430b57>] xfs_file_readdir+0x47/0x70
>> >>>  [<ffffffff802ec500>] vfs_readdir+0xd0/0xf0
>> >>>  [<ffffffff802ec6b6>] sys_getdents+0x96/0x110
>> >>>  [<ffffffff8020ba6b>] system_call_fastpath+0x16/0x1b
>> >>
>> >> I'd say this indicates a corrupted directory.  Can you run
>> >> 'xfs_repair -n' over the filesystem and see if it finds a bad
>> >> directory?
>>
>> Still cannot fix the filesystem. After repairing all corruptions from
>> LiveCD it still fails on the same workload.
>>
>> Do you need metadump or anything else?
>>
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>

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