linux-kernel - Yet another 2.6.35 regression (AGP)?

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Date:	Fri, 9 Jul 2010 10:21:56 -0400
From:	Woody Suwalski <terraluna977@...il.com>
To:	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
	"Rafael J. Wysocki" <rjw@...k.pl>,
	drivers_video-dri-intel@...nel-bugs.osdl.org
Subject: Yet another 2.6.35 regression (AGP)?

I have found one system, where 2.6.35 does not work (as tested with rc3 
and rc4)
That Intel system has no problems in 2.6.33.x nor 2.6.34.0.

The problem seems to be in AGP - I can boot if I specify "agp=off" - but 
of course only in text mode...
There seems to be a hard lock-up, so the only way to show the crash is 
by picture 8-)

Since I do not build kernel on that machine, I did not do any bisect 
tests, however if someone is interested in digging deeper, I can try... 
Preferably a patch to try out ;-)

This bug seems to be different then 
https://bugzilla.kernel.org/show_bug.cgi?id=16179

Should it be blamed on BIOS (the conflict indicated just before the crash)?

Thanks, Woody

Download attachment "agp_crash_small.jpg" of type "image/jpeg" (92450 bytes)