https://bugs.freedesktop.org/show_bug.cgi?id=91278
--- Comment #22 from Mathias Tillman master.homer@gmail.com --- (In reply to Andy Furniss from comment #21)
(In reply to Mathias Tillman from comment #20)
Do you get those GPU faults in the log even when there's no hang?
Yes and I can also hang without getting any.
Actually, I think I've seen hangs without the GPU faults too now that I think about it. Makes you wonder if the GPU faults are related at all, or if this is something else entirely.