Doom (2016) GL hangs due to SDMA on GFX10
[ 123.543583] [drm:amdgpu_job_timedout [amdgpu]] *ERROR* ring sdma0 timeout, signaled seq=13738, emitted seq=13740 [ 123.543657] [drm:amdgpu_job_timedout [amdgpu]] *ERROR* Process information: process DOOMx64.exe pid 2022 thread DOOMx64.ex:cs0 pid 2061
This kernel patch  doesn't fix the hang, but AMD_DEBUG=nodma fixes it!
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