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Date: Tue, 28 Jun 2005 12:29:37 +0200 (CEST)
Subject: Re: linux 2.6.12 and IOWAIT
From: "David Arendt" <admin@prnet.org>
To: "Andrew Morton" <akpm@osdl.org>
Cc: "David Arendt" <admin@prnet.org>, linux-kernel@vger.kernel.org
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> David Arendt <admin@prnet.org> wrote:
>>
>> Hi,
>>
>> I have to following problem using kernel 2.6.12: IOWAIT is always at
>> 100% in top, the system seems to be significally slower. Any idea what
>> could lead to this ?
>
> Look for a process stuck in D state in the `ps aux' output.
>

The problem was spamassain, it was hanging while processing a mail
containing an aide report. After rebooting my machine, the mail was still
in queue and spamassasain started again. This happened at the same time I
upgraded to 2.6.12, therefore I thought it was due to it.