From: Dave Airlie <airlied@gmail.com>
Subject: Re: [Regression] Filesystem I/O is CPU-bound in rc7 and rc8
Date: Sat, 20 Feb 2010 08:03:57 +1000
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Cc: linux-kernel@vger.kernel.org, Chris Mason <chris.mason@oracle.com>,
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To: James Cloos <cloos@jhcloos.com>
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>
> OK. =A0I do use radeon kms (r100).

I've just sent a pull req to Linus
http://bugzilla.kernel.org/show_bug.cgi?id=3D15328
this

http://bugzilla.kernel.org/attachment.cgi?id=3D25107
patch.

The relevant piece of dmesg is at the top ;-), where
it states if you have PAT support or not, but I
suspect if you try this patch it'll fix it.

Dave.