https://bugs.freedesktop.org/show_bug.cgi?id=69723
--- Comment #71 from Alexandre Demers alexandre.f.demers@gmail.com --- (In reply to comment #70)
(In reply to comment #67)
I may have been lucky until now, but disabling the whole ss seems to be better. I'll continue testing.
It took me longer, but I hanged the GPU again running Phoronix test suite. Nothing in the journal about the latest hang. I'm now testing with mclk_ss disabled on stock 3.13-rc3 (no patch reverted).
Oops, I may have to revisit what I just said. I'll be in touch soon.