https://bugs.freedesktop.org/show_bug.cgi?id=91790
--- Comment #15 from Andy Furniss adf.lists@gmail.com --- (In reply to Andy Furniss from comment #13)
(In reply to Mathias Tillman from comment #11)
(In reply to Alex Deucher from comment #10)
Created attachment 118056 [details] [review] [review] [review] possible fix
I think this patch should fix it.
No luck here I'm afraid - I'm having a hard time reproducing it during normal desktop usage (with or without the patch), but it did lockup while running Unigine Valley.
I see drm-next-4.3 is now ahead again, haven't tested that yet.
With patch + drm-next-4.3-wip, I haven't yet managed to lock valley - but I've only had time to do a couple of runs (45 min then 90 min) from a clean boot. Maybe later when I've been up a while doing other things I'll try harder.
Patch doesn't apply with git apply - did it by hand.
I managed to lock it, seems that doing "something" between runs changes things, or first runs are lucky.
FWIW I tried running Unreal 4.5 ElementalDemo after my long runs and I got a signal 7.
After I later locked/hung valley I rebooted and tried again elemental from a clean boot and it ran OK, but after quitting. it now gives signal 7 again if I try to start it.