linux-kernel - regression: 100% io-wait with 2.6.24-rcX

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Message-Id: <200801071151.11200.lists@naasa.net>
Date:	Mon, 7 Jan 2008 11:51:10 +0100
From:	Joerg Platte <lists@...sa.net>
To:	linux-kernel@...r.kernel.org
Subject: regression: 100% io-wait with 2.6.24-rcX

Hi,

when booting kernel 2.6.24-rc{4,5,6,7} top reports up to 100% iowait, even if 
no program accesses the disc on my Thinkpad T40p. Kernel 2.6.23.12 does not 
suffer from this. Is there anything I can do to find out which process or 
which part of the kernel is responsible for this? I can try to bisect it, but 
maybe there are other possibilities to debug this, since I cannot boot this 
computer frequently. I discovered, that there is no iowait within the first 
few seconds after waking up from suspend to ram...

regards,
Jörg

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