https://bugs.freedesktop.org/show_bug.cgi?id=61747
--- Comment #7 from Alex Deucher agd5f@yahoo.com --- (In reply to comment #6)
(In reply to comment #5)
Can you bisect mesa?
I'm not sure that makes sense. The crashes started after Fedora upgraded its 3.7.9 kernel to one based on 3.8.1, and so I have no idea if there's even a "good" commit in Mesa to start bisecting from.
I'm guessing the kernel update enabled some additional feature in mesa (htile or async/cp dma support). Does disabling htile support help? Set env var R600_HYPERZ=0