Comment # 28 on bug 111481 from Pierre-Eric Pelloux-Prayer

Regarding sdma ring hangs: if you still have access to the affected machine
using ssh, it would be helpful to add a comment with the following information:

  - the last dmesg lines (at least the "[drm:amdgpu_job_timedout [amdgpu]]
*ERROR* ring sdma1 timeout, signaled seq=9871, emitted seq=9873" one)
  - the output of : umr -R sdma0 (or sdma1 depending on which one failed)

Thanks!