https://bugs.freedesktop.org/show_bug.cgi?id=79980
--- Comment #5 from Andy Furniss adf.lists@gmail.com --- (In reply to comment #3)
Does it still happen if you drop the PTE patches?
Is that stop poisoning the GART TLB?
Whatever - it could be a separate issue, but I am now getting sort of random crashes on your drm-next-3.16 with my pitcairn.
I am stable on deathsimple 3.15 fixes + hdmi patches.