[Intel-gfx] frequent x crashes with gen6/sna

[Daniel Vetter]

On Mon, Oct 17, 2011 at 10:20:09PM +0200, Dieter Mummenschanz wrote:
> ok now I got your patch from git and will give it a try asap. Meanwhile
> the intel_iommu=off (with rc6 enabled) switch seems to make the system
> somehow more stable. the gpu hangs don't appear that often but they
> still occur! strangely after the hang/resume, the OpenGL game crashes
> immediately with:
> 
> intel_do_flush_locked failed: Input/output error
> and raises the same error when I try to start it up again.
> 
> mplayer also bails out with:
> mplayer: dri2_util.c:109: dri2GetRenderingBuffer: Assertion `buffers' failed.
> MPlayer interrupted by signal 6 in module: flip_page
> 
> I have to reboot in order to get mplayer / the game running.
> 
> I've never experienced that before. i915 error state attached.

Well, that usually means that the kernel couldn't reset the gpu after a
hang. You should see a message to that effect in dmesg.
-Daniel
-- 
Daniel Vetter
Mail: daniel at ffwll.ch
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