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SubjectRe: GPU hung with Linux-3.2-rc6
On Thu, Dec 22, 2011 at 01:45:20AM +0100, Udo Steinberg wrote:
> On Wed, 21 Dec 2011 14:55:07 -0800 Keith Packard (KP) wrote:
>
> KP> On Wed, 21 Dec 2011 22:26:26 +0100, Udo Steinberg <udo@hypervisor.org> wrote:
> KP>
> KP> > That makes the problem go away. If you need more help tracking down the
> KP> > problem, then let me know. I can reproduce it fairly easily with something
> KP> > as simple as:
> KP> >
> KP> > while true; do dmesg; done
> KP>
> KP> Are you using SNA?
>
> I don't think so. I'm using the following packages:
>
> xorg-server-1.9.5
> xf86-video-intel-2.15.0
> libdrm-2.4.25
> mesa-7.10.2
>
> I quick google search suggests that at least some of them are too old to
> support SNA.

Can you please apply the patch available at

http://cgit.freedesktop.org/~danvet/drm/patch/?id=0b3ecfa8c9b00f50d514fbcc12e34882b0fa695a

This one will let your gpu keep hanging in the "stuck on semphore wait"
condition. Later on the hangcheck should kick in and grab a gpu error
state (in the file i915_error_state in debugfs). Can you please attach
that one?

Thanks, Daniel
--
Daniel Vetter
Mail: daniel@ffwll.ch
Mobile: +41 (0)79 365 57 48


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