https://bugs.freedesktop.org/show_bug.cgi?id=82588
--- Comment #9 from jospezial jospezial@gmx.de --- Reverting these two patches did not help. Tested with 3.17.0-rc3 .
Btw, reverting the second patch was not so easy.
radeon_ring.c was splitted up and the patch had to be applied to radeon_ib.c .
the first patch has been reverted here: http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/driver...