Created attachment 145668 [details]
dump of the sdma0 ring after a timeout error

Just had another ring sdma0 timeout while being on the desktop and working.
Quite infuriating.

[14191.862674] [drm:amdgpu_dm_atomic_commit_tail [amdgpu]] *ERROR* Waiting for
fences timed out!
[14191.862745] [drm:amdgpu_dm_atomic_commit_tail [amdgpu]] *ERROR* Waiting for
fences timed out!
[14196.982476] [drm:amdgpu_job_timedout [amdgpu]] *ERROR* ring sdma0 timeout,
signaled seq=5420633, emitted seq=5420635
[14196.982590] [drm:amdgpu_job_timedout [amdgpu]] *ERROR* Process information:
process Xorg pid 716 thread Xorg:cs0 pid 717
[14196.982592] [drm] GPU recovery disabled.

Kernel is built from the `drm-fixes-5.4-2019-10-02` tag (basically 5.4-rc1 +
amdgpu commits which will be included in rc2) with the WIP patch of this thread
(drm/amdgpu: do not execute 0-sized IBs). All other libs on my system are
up2date (Arch, using the mesa-git repo).