From mboxrd@z Thu Jan  1 00:00:00 1970
From: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Subject: Re: 2.6.23-rc7 - _random_ IRQ23 : nobody cared
Date: Thu, 27 Sep 2007 19:04:11 +1000
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To: Paul Rolland <rol@as2917.net>
Cc: Tejun Heo <htejun@gmail.com>, David Newall <david@davidnewall.com>, Linux Kernel <linux-kernel@vger.kernel.org>, IDE/ATA development list <linux-ide@vger.kernel.org>, rol@witbe.net

Let me guess... this is a T61 or X61 ?

There's a problem with these that we don't fully understand yet, we're
getting those stale interrupts all over the range.

I wonder if it could be a bug with the ICH8 chipset... 

If yours is one of these, it's being dealt with (or attempted to deal
with) at

http://bugzilla.kernel.org/show_bug.cgi?id=8853

Ben.