https://bugs.freedesktop.org/show_bug.cgi?id=84106
--- Comment #6 from Michel Dänzer michel@daenzer.net --- (In reply to comment #2)
'relief mapping' causes the GPU faults, anyway even without this setting the framerate still drops to 0 in some points of the benchmark
I think the framerate drops are due to VRAM thrashing and not directly related to the GPU faults.