Created attachment 120672 [details] Crash dump The gpu hung when trying to run Unigine Heaven 4.0 on my Skylake machine This is drm-next with the latest mesa
Created attachment 120673 [details] Dmesg for hang
I'm running it full screen at the native 4k resolution, quality Ultra, tessellation Extreme The hang only happens if Antialiasing is enabled (either x2 x4 or x8)
Created attachment 122606 [details] Intel GPU error dump This gets triggered with or without i915.enable_rc6=0. Attached is the GPU ringdump
Please test with, https://bugs.freedesktop.org/attachment.cgi?id=122661
Created attachment 122663 [details] [review] drm/i915/skl: Use WaForceContextSaveRestoreNonCoherent for all revs
(In reply to Mika Kuoppala from comment #4) > Please test with, > > https://bugs.freedesktop.org/attachment.cgi?id=122661 Ignore this
(In reply to Mika Kuoppala from comment #5) > Created attachment 122663 [details] [review] [review] > drm/i915/skl: Use WaForceContextSaveRestoreNonCoherent for all revs This one cured heaven4.0 symptomps with 00:02.0 0300: 8086:1926 (rev 0a) You might need also a patch from https://bugs.freedesktop.org/show_bug.cgi?id=94161
I am seeing hangs with these patches on Manhattan. They do not occur on every run.
Created attachment 122828 [details] Error state from manhattan on gt4e
(In reply to Ben Widawsky from comment #9) > Created attachment 122828 [details] > Error state from manhattan on gt4e Ben, could you upgrade the dmc firmware to 1.26 and rerun? Thanks.
It was very slow but I can confirm there aren't any issues for me any more on SKL - not sure if it was the firmware somewhere else in the stack
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