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

To: Alexander Beregalov <a.beregalov@xxxxxxxxx>
Subject: Re: 2.6.30-rc6: BUG at fs/xfs/support/debug.c:109!
From: Dave Chinner <david@xxxxxxxxxxxxx>
Date: Thu, 4 Jun 2009 19:23:30 +1000
Cc: Kernel Testers List <kernel-testers@xxxxxxxxxxxxxxx>, xfs@xxxxxxxxxxx
In-reply-to: <a4423d670906010822l6e8e112dl3d6f7de9e2179850@xxxxxxxxxxxxxx>
References: <a4423d670906010822l6e8e112dl3d6f7de9e2179850@xxxxxxxxxxxxxx>
User-agent: Mutt/1.5.18 (2008-05-17)
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?

Cheers,

Dave.
-- 
Dave Chinner
david@xxxxxxxxxxxxx

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