Cycles AMD HIP device feedback

[joni999]

@L_S

@Nik

the UI locks up. Then a brief moment where the entire screen will turn off for a second or two, the fans go back to idle RPM and the screen turns back on with a locked up UI where the OS becomes unusable and i have to restart.

If your Linux OS enables journalctl you can run the following command to check the systemd for errors on the last boot (-b-1) with human readable times (-k)
sudo journalctl -k -b-1

The error should be near the bottom (use page down), in my case blender normally produces something like this when it crashes the GPU.

kernel: [drm:amdgpu_cs_ioctl [amdgpu]] *ERROR* Failed to initialize parser -2!
kernel: [drm:amdgpu_dm_atomic_commit_tail [amdgpu]] *ERROR* Waiting for fences timed out!
kernel: [drm:amdgpu_job_timedout [amdgpu]] *ERROR* ring gfx_0.0.0 timeout, signaled seq=145976, emitted seq=145978
kernel: [drm:amdgpu_job_timedout [amdgpu]] *ERROR* Process information: process blender pid 9433 thread blender:cs0 pid 9467

In my case google reveals a widespread issue with no clear resolution, it could be blender or mesa/drm or the hardware. Hopefully you will have a more specific error.

I got the exact same thing! @Nik @L_S Can I ask what GPU’s you both are using?
I’m using a RX6900XT
I opened the following blender bug report:
https://developer.blender.org/T100353