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Date: Wed, 30 Jul 2003 15:09:02 -0700
From: Andrew Morton <akpm@osdl.org>
To: Mike Galbraith <efault@gmx.de>
Cc: linux-kernel@vger.kernel.org
Subject: Re: 2.6.0-test2+ext3+dbench=Buffer I/O error
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Mike Galbraith <efault@gmx.de> wrote:
>
> Greetings,
> 
> While trying to duplicate Randy Hron's "dbench has intermittent hang on 
> 2.6.0-test1-ac2" report, I received quite a few "Buffer I/O error on 
> /dev/hda8, logical block N" messages.  (changing elevators makes no 
> difference fwiw).

That's just a gremlinlet.  You can delete the offending printk for now.

> I went back to test1, and it spat up a couple of "buffer 
> layer error" messages and associated traces.   Attempting to umount 
> afterward to run fsck left umount in D state.  See attachment.

Well that's a worry.  Is it repeatable?