https://bugs.freedesktop.org/show_bug.cgi?id=91141
--- Comment #15 from Dave Witbrodt dawitbro@sbcglobal.net --- (In reply to Christian König from comment #12)
Created attachment 116973 [details] Possible fix part 2
Please apply this one on top of the first fix and see if the problem still happen.
Works good on my machine. The programs that triggered the bug before no longer cause any problems.
Sanity check: I had dropped 161ab658 and b13e22ae from my list of cherry picks before in order to have a working kernel. After adding those back, and applying
0001-drm-radeon-allways-add-the-VM-clear-duplicate.patch 0001-drm-radeon-check-if-BO_VA-is-set-before-adding-it-to.patch
everything works great again. I have not yet tested suspend-to-RAM, but after the testing I've done so far I doubt there will be problems.
HTH, DW