linux-kernel - Re: Yet another 2.6.35 regression (AGP)? (resend)

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Message-ID: <4C37835E.7010704@canonical.com>
Date:	Fri, 09 Jul 2010 14:15:26 -0600
From:	Tim Gardner <tim.gardner@...onical.com>
To:	Woody Suwalski <terraluna977@...il.com>
CC:	Linux Kernel List <linux-kernel@...r.kernel.org>,
	"Rafael J. Wysocki" <rjw@...k.pl>
Subject: Re: Yet another 2.6.35 regression (AGP)? (resend)

On 07/09/2010 09:00 AM, Woody Suwalski wrote:
> 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
>
> PS. Resending, as original post cc'd
> drivers_video-dri-intel@...nel-bugs.osdl.org, what seems to be bad...
>

How about this patch? I'm waiting confirmation from another user, but 
your problem looks quite similar.

rtg
-- 
Tim Gardner tim.gardner@...onical.com

View attachment "0001-UBUNTU-Upstream-i915-Use-the-correct-mask-to-detect-.patch" of type "text/x-patch" (2089 bytes)