Date: Tue, 18 Sep 2007 17:12:06 +0200
From: Jan Kara <jack@ucw.cz>
To: Ville Herva <v@iki.fi>
Cc: linux-kernel@vger.kernel.org
Subject: Re: 2.4.35 SMP: ext3_readdir: bad entry in directory #323888: rec_len is smaller than minimal
Message-ID: <20070918151206.GC13304@atrey.karlin.mff.cuni.cz>
References: <20070918122314.GL29062@vianova.fi>
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  Hello,

> I got a bunch of these into dmesg:
> 
> EXT3-fs error (device sd(8,2)): ext3_readdir: bad entry in directory #323880: rec_len is smaller than minimal - offset=0, inode=0, rec_len=0, name_len=0
> EXT3-fs error (device sd(8,2)): ext3_readdir: bad entry in directory #323888: rec_len is smaller than minimal - offset=0, inode=0, rec_len=0, name_len=0
> EXT3-fs error (device sd(8,2)): ext3_readdir: bad entry in directory #323882: rec_len is smaller than minimal - offset=0, inode=0, rec_len=0, name_len=0
> 
> The kernel is 2.4.35 SMP, dual-processor. The scsi driver is Fusion MPT SCSI
> Host driver 2.05.16.
> 
> The device is /dev/sda2, root fs.
> 
> One line per each directory had dropped into dmesg each night (I think
> during updatedb) before I noticed.
  Interesting. Can you look (using debugfs) on the content of the
/usr/share/doc/ directory? It seems like parts of it have been zeroed
out...

> The directories in question have not been written to for ages:
> 
> >debugfs /dev/sda2
> debugfs:  ncheck 323888
> Inode   Pathname
> 323888  /usr/share/doc/logcheck-1.1.1
> debugfs:  ncheck 323882
> Inode   Pathname
> 323882  /usr/share/doc/dev86-0.15.5
> debugfs:  ncheck 323880
> Inode   Pathname
> 323880  /usr/share/doc/mod_put-1.3
> 
> The hardware _should_ be solid, although I can never 100% sure rule out disk
> level corruption.

									Honza
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