i915: GPU hung (F14, Intel Core i5-670)

[Linus Torvalds]

On Mon, May 28, 2012 at 12:06 AM, Chris Wilson <chris at chris-wilson.co.uk> wrote:
>
> No, the i915_error_state had everything I needed to see. It is the old
> ddx bug that was hardcoding a maximum relocation address that never
> corresponded with an actual hw limit. As soon we try to use memory above
> that value, the GPU decides not to listen to us any more.
>
> Fixed in xf86-video-intel 2.14.901

I really don't think that's the case.

I have run the F14 X server for a *long* time without these issues on
this machine, and today I now got a second GPU hang with the current
git tree. I was in the middle of just writing an email in chrome,
nothing fancy going on at all.

So please please *please* take a second look. Because I think it's
triggered by the i915 changes, or you undid a workaround that used to
work fine.

                  Linus