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Re: Strange XFS corruption...

To: Eric Sandeen <sandeen@xxxxxxx>
Subject: Re: Strange XFS corruption...
From: Michael Sinz <msinz@xxxxxxxxx>
Date: Mon, 13 Jan 2003 07:09:47 -0500
Cc: linux-xfs@xxxxxxxxxxx
In-reply-to: <1042238348.20737.37.camel@xxxxxxxxxxxxxxxxxxxxxx>
References: <20030110091029.49057.qmail@xxxxxxxxxxxxxxxxxxxxxxx> <3E1F4879.7090909@xxxxxxxxx> <1042238348.20737.37.camel@xxxxxxxxxxxxxxxxxxxxxx>
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Eric Sandeen wrote:
We've actually seen this here too, recently.  We -think- it is the
result of previous filesystem corruption on shutdown, which should now
be fixed.  Did you have any filesystem shutdowns or other corruption
before this?  The possible corruption bug that was fixed could even
happen on a clean shutdown, unfortunately.

Well, there was that one time a while back (late November?) where
XFS was broken (clean shutdown would prevent a boot due to some
block information being confused)  I reverted and recovered back then
and had not had a crash (unclean shutdown) since then.

Also, some more information:  xfs_check was returning that the system
was clean (all OK, not even a minor warning) and yet I had a number of
"mtab" files in /etc.  In fact, I had a hard time getting rid of them.
Using "rm" did not work well (that would really confuse the directory
and required a shutdown/reboot to recover from - and still multiple
/etc/mtab files)

In finally fixed it my doing a "mv /etc/mtab* /junk/" (I had created
that directory.  All of the mtab file entries were no gone from /etc
and /junk had only one.  (and a simple rm -rf /junk cleaned that up)

xfs_check still claims all is fine.

--
Michael Sinz -- Director, Systems Engineering -- Worldgate Communications
A master's secrets are only as good as
        the master's ability to explain them to others.


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