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.