Created attachment 135771 [details] dmesg output of event. Fresh boot, directly into steam / game Running Octodad - Dadliest catch results in a severe command processor stall. Radeon HD 5970 kallisti5@eris ~ :) $ glxinfo | grep renderer OpenGL renderer string: Gallium 0.4 on AMD CYPRESS dmesg output attached.
This is a mesa bug rather than a kernel bug: https://bugs.freedesktop.org/show_bug.cgi?id=75784