linux-kernel - Re: XFS internal error

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Message-ID: <20071008001452.GX995458@sgi.com>
Date:	Mon, 8 Oct 2007 10:14:52 +1000
From:	David Chinner <dgc@....com>
To:	Max Waterman <davidmaxwaterman+kernel@...tmail.co.uk>
Cc:	linux-kernel@...r.kernel.org, xfs@....sgi.com
Subject: Re: XFS internal error

[please cc xfs@....sgi.com on XFS bug reports. thx.]

On Sun, Oct 07, 2007 at 09:09:58AM +0800, Max Waterman wrote:
> Hi,
> 
> I have just had an XFS error occur while deleting some directory
> hierarchy. I hope this is the correct place to report it.

.....
> This is in syslog :
> 
> > Oct  6 23:40:33 jeeves kernel: xfs_da_do_buf: bno 16777216
                                                  ^^^^^^^^^^^^^
> > Oct  6 23:40:33 jeeves kernel: dir: inode 2095141277
> > Oct  6 23:40:33 jeeves kernel: Filesystem "md2": XFS internal error xfs_da_do_buf(1) at line 1994 of file fs/xfs/xfs_da_btree.c.  Caller 0xffffffff889b2de4

Did you ever run 2.6.17-2.6.17.6? If so, this implies:

http://oss.sgi.com/projects/xfs/faq.html#dir2

> I am fairly sure there is nothing I can do about this, but I thought it
> prudent to mention it. Searching turned up some similar issues, but they
> seem related to a previous kernel version and claimed to be fixed in
> subsequent versions.

Yes, but those previous corruptions get left on disk as a landmine
for you to trip over some time later, even on a kernel that has the
bug fixed.

I suggest that you run xfs_check on the filesystem and if that
shows up errors, run xfs_repair onteh filesystem to correct them.

Cheers,

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