linux-kernel - Re: XFS filesystem corruption on the arm(el) architecture

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Message-ID: <20081018085752.GS25834@deprecation.cyrius.com>
Date:	Sat, 18 Oct 2008 10:57:56 +0200
From:	Martin Michlmayr <tbm@...ius.com>
To:	Eric Sandeen <sandeen@...deen.net>
Cc:	Tobias Frost <tobi@...dtobi.de>, linux-kernel@...r.kernel.org,
	debian-arm@...ts.debian.org, xfs@....sgi.com
Subject: Re: XFS filesystem corruption on the arm(el) architecture

* Eric Sandeen <sandeen@...deen.net> [2008-10-17 09:15]:
> If you unmount & remount, does the ls work then?

I cannot even mount it:

debian:~# mkfs.xfs -f /dev/sda5
meta-data=/dev/sda5              isize=256    agcount=4, agsize=94380 blks
         =                       sectsz=512   attr=2
data     =                       bsize=4096   blocks=377519, imaxpct=25
         =                       sunit=0      swidth=0 blks
naming   =version 2              bsize=4096
log      =internal log           bsize=4096   blocks=2560, version=2
         =                       sectsz=512   sunit=0 blks, lazy-count=0
realtime =none                   extsz=4096   blocks=0, rtextents=0
debian:~# mount /dev/sda5 /mnt
[42949596.920000] XFS mounting filesystem sda5
debian:~# cp /usr/bin/* /mnt/
debian:~# umount /mnt
debian:~# mount -t xfs /dev/sda5 /mnt
[42949612.290000] XFS mounting filesystem sda5
[42949612.460000] Starting XFS recovery on filesystem: sda5 (logdev: internal)
[42949612.480000] XFS: xlog_recover_process_data: bad flag
[42949612.500000] XFS: log mount/recovery failed: error 5
[42949612.500000] XFS: log mount failed
mount: /dev/sda5: can't read superblock
debian:~#

> Do you know what cachepolicy you're booted with?  If it's writeallocate,
> you might try cachepolicy=writeback, otherwise try cachepolicy=uncached
> (which will be horribly slow) and see if the problem goes away or not;
> it'd be a clue.

I just tried with cachepolicy=writeback and cachepolicy=uncached but I
get the same problem.
-- 
Martin Michlmayr
http://www.cyrius.com/
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