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SubjectRe: [2.6.38-rc6] G965: i915 Hangcheck timer elapsed... GPU hung (not reproducible)
On Sun, 27 Feb 2011 10:10:41 +0100 Paolo Ornati <ornati@gmail.com> wrote:
> Today I got this while starting a video in SMplayer (MPlayer) with
> 2.6.38-rc6-00113-g4662db4:

> > [ 830.880014] [drm:i915_hangcheck_elapsed] *ERROR* Hangcheck timer elapsed... GPU hung
> > [ 830.880736] [drm:i915_do_wait_request] *ERROR* i915_do_wait_request returns -11 (awaiting 174895 at 174857, next 174896)
> > [ 830.881093] [drm:init_ring_common] *ERROR* render ring initialization failed ctl 00000000 head 00000000 tail 00000000 start 00000000
> > [ 831.379079] [drm:i915_do_wait_request] *ERROR* something (likely vbetool) disabled interrupts, re-enabling
> > [ 831.399099] [drm:i915_do_wait_request] *ERROR* something (likely vbetool) disabled interrupts, re-enabling

I was experiencing intermittent hangs when starting mplayer earlier in
this release cycle (on both a desktop with a G45 and a laptop with a
GM45), but I haven't encountered them in quite a while. I don't know if
they looked exactly like the above since all the hangs have been rotated
out of my logs :(. I ended up concluding that it was actually a
regression in xf86-video-intel rather than the kernel (but no real way
of testing this), since there was a lot of Xv related churn in the
driver around the time I was having the issues.

So you might want to try again with the latest git xf86-video-intel and
see if it still happens.

--
Nick Bowler, Elliptic Technologies (http://www.elliptictech.com/)


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