linux-kernel - Re: [next] Null pointer dereference in nouveau_vm_map

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Message-Id: <201201170057.51404.martin.nyhus@gmx.com>
Date:	Tue, 17 Jan 2012 00:57:50 +0100
From:	Martin Nyhus <martin.nyhus@....com>
To:	Jerome Glisse <j.glisse@...il.com>
Cc:	Ben Skeggs <bskeggs@...hat.com>, David Airlie <airlied@...ux.ie>,
	dri-devel@...ts.freedesktop.org, linux-kernel@...r.kernel.org
Subject: Re: [next] Null pointer dereference in nouveau_vm_map_sg

On Monday 16. January 2012 21:30:59 Jerome Glisse wrote:
> On Sun, Jan 15, 2012 at 10:31:08PM +0100, Martin Nyhus wrote:
> > In some cases mem will be null in nouveau_vm_map_sg, resulting in a crash
> > at drivers/gpu/drm/nouveau/nouveau_vm.c:84. It seems to be easy enough to
> > reproduce, so I can test patches if needed.
> How do you trigger this ?

Opening 10-15 high-res pictures in Firefox triggers it every time. Doing the 
same using Gimp does not, and neither does Firefox and lots of small images 
(eg. Google image search).

	Martin
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