linux-kernel - Re: [PATCH] drm/nouveau: fix NULL ptr dereference from nv50_disp

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Date:	Sun, 24 Mar 2013 15:57:06 +0200
From:	Aaro Koskinen <aaro.koskinen@....fi>
To:	Maarten Lankhorst <maarten.lankhorst@...onical.com>
Cc:	Peter Hurley <peter@...leysoftware.com>,
	Ben Skeggs <bskeggs@...hat.com>,
	David Airlie <airlied@...ux.ie>, nouveau@...ts.freedesktop.org,
	dri-devel@...ts.freedesktop.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] drm/nouveau: fix NULL ptr dereference from
 nv50_disp_intr()

Hi,

On Sun, Mar 24, 2013 at 12:56:30PM +0100, Maarten Lankhorst wrote:
> Op 23-03-13 12:47, Peter Hurley schreef:
> > On Tue, 2013-03-19 at 11:13 -0400, Peter Hurley wrote:
> >> On vanilla 3.9.0-rc3, I get this 100% repeatable oops after login when
> >> the user X session is coming up:
> > Perhaps I wasn't clear that this happens on every boot and is a
> > regression from 3.8
> >
> > I'd be happy to help resolve this but time is of the essence; it would
> > be a shame to have to revert all of this for 3.9
> 
> Well it broke on my system too, so it was easy to fix.
> 
> I didn't even need gdm to trigger it!
> 
> >8----
> This fixes regression caused by 1d7c71a3e2f7 (drm/nouveau/disp: port vblank handling to event interface),

This patch fixes the boot crashes also on my G5 iMac
(http://marc.info/?l=linux-kernel&m=136285469916031&w=2).

Tested-by: Aaro Koskinen <aaro.koskinen@....fi>

A.
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