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Re: XFS corruption on 2.4.28

To: Renaat Dumon <renaat.dumon@xxxxxxxxxx>
Subject: Re: XFS corruption on 2.4.28
From: Eric Sandeen <sandeen@xxxxxxx>
Date: Wed, 02 Nov 2005 15:56:49 -0600
Cc: linux-xfs@xxxxxxxxxxx
In-reply-to: <20051102213946.1EEA31775D1@postit.belbone.be>
References: <20051102213946.1EEA31775D1@postit.belbone.be>
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Renaat Dumon wrote:
Mounting the filesystem without the geometry doesn't change things, the size
is still wrongly reported for .db files.

Ok, good to know. You should put it back now :)

I have however found files that should be 44 bytes (from ls -al) and

bacardi 0 # ls -al 000b21176cda012e1c0a7828f75347c3.289492.db -rw------- 1 root root 44 Nov 2 20:18
000b21176cda012e1c0a7828f75347c3.289492.db
bacardi 0 # du -sk 000b21176cda012e1c0a7828f75347c3.289492.db 2147483532 000b21176cda012e1c0a7828f75347c3.289492.db



The value that du reports is the same as the one for 28-byte files, so it's a constant, regardless of the real size of the file.

Interesting.

FWIW, this is a filesystem with a huge amount of files:

bacardi 0 # df -hi
Filesystem            Inodes   IUsed   IFree IUse% Mounted on
/dev/root               8.0M     44K    8.0M    1% /
/dev/md0                 12K      33     12K    1% /boot
/dev/md3                224M     11M    214M    5% /Storage
none                     63K       1     63K    1% /dev/shm

I have requested my vendor to actually build a kernel with the most recent
patches + include the most recent userland progs. Could it be that a newer
version of xfs_repair might catch some inconsistencies the current version
would not ?

It would probably be good to see some of the repair output when you run it on a problematic filesystem...


-Eric


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