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Re: XFS pseudo OOPs.

To: Dan Yocum <yocum@xxxxxxxx>
Subject: Re: XFS pseudo OOPs.
From: Nathan Scott <nathans@xxxxxxx>
Date: Tue, 16 Mar 2004 16:50:36 +1100
Cc: xfs-list <linux-xfs@xxxxxxxxxxx>
In-reply-to: <4055EA33.5030608@fnal.gov>
References: <4055EA33.5030608@fnal.gov>
Sender: linux-xfs-bounce@xxxxxxxxxxx
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On Mon, Mar 15, 2004 at 11:38:59AM -0600, Dan Yocum wrote:
> I don't know, yet, if this is a hardware or a software problem.  I'm trying 
> to figure that out.
> 
> I'm using the ATRpms kernel (2.4.20-30_37 w XFSv1.3.0 et al. see the list at 
> http://atrpms.physik.fu-berlin.de/dist/rh73/kernel/ ) and I'm getting these 
> errors and sometimes it forces the FS offline or makes the system unusable - 
> not really a freeze, but you can't interrupt it.
> 
> Mar  1 14:21:25 sdssdp37 kernel: Filesystem "md(9,3)": XFS internal error 
> xfs_btree_check_sblock at line 341 of file xfs_btree.c.  Caller 0xf886c543 ...
> ...
> Trace; f88566df <[xfs]xfs_btree_check_sblock+9f/c0>
> Trace; f88b4778 <[xfs].rodata.end+6179/14461>
> Trace; f88b473b <[xfs].rodata.end+613c/14461>
> Trace; f8841909 <[xfs]xfs_alloc_increment+159/180>
> Trace; f8841909 <[xfs]xfs_alloc_increment+159/180>
> Trace; f885667f <[xfs]xfs_btree_check_sblock+3f/c0>
> Trace; f88405e9 <[xfs]xfs_alloc_lookup+289/350>
> Trace; f883d60a <[xfs]xfs_alloc_ag_vextent_size+4a/440>

Hi Dan,

Looks like you've got filesystem corruption, from your trace it
looks like its in one of the freespace btrees in an AG header.
Its difficult to diagnose whether this is caused by a hardware
or software failure - if you can find a pattern or better yet a
reproducible test case, that'd help us alot in figuring it out.
The output from xfs_repair may provide us additional clues also.

thanks.

-- 
Nathan


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