https://bugs.freedesktop.org/show_bug.cgi?id=69723
--- Comment #74 from Alexandre Demers alexandre.f.demers@gmail.com --- On my side, disabling spread spectrum but keeping the patches limiting the gpu and mem clocks to reference board ones seems to be OK. I've been running phoronix-test-suite tests for the last day without problem. Still, while it seems stable, it may not correct everything, only time will tell.
I'll have to test again with patches from bug 68235 reverted because I suspect I had selected the wrong kernel when I last posted my results about it.