[Bug 204241] amdgpu fails to resume from suspend

https://bugzilla.kernel.org/show_bug.cgi?id=204241

--- Comment #28 from Ahzo@tutanota.com --- (In reply to Andreas Jackisch from comment #27)

In brief - the patch "0001-drm-amdgpu-uvd6-fix-allocation-size-in-enc-ring-test.patch" didn't work for me. After about 10 suspend/resume cycles the typical issue occurred again and I had to SysRq the system.

Indeed, the 0001-drm-amdgpu-uvd6-fix-allocation-size-in-enc-ring-test patch (attachement 285473) doesn't work. Apparently I got (un)lucky enough that it survived 30 suspend/resume cycles, but testing it again, it failed.

On the other hand, the 0001-drm-amdgpu-uvd6-use-0-as-dummy-pointer-in-enc-ring-t patch (attachement 285469) survived 100 cycles.