[Bug 105819] Window system hang due to GPU Fault

[bugzilla-daemon@freedesktop.org]

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https://bugs.freedesktop.org/show_bug.cgi?id=105819

--- Comment #2 from Andy Burns <freedesktopbugz@adslpipe.co.uk> ---
Experienced same/similar error on Fedora 28 beta, with an RX 460 card

$ lspci | grep AMD

01:00.0 VGA compatible controller: Advanced Micro Devices, Inc. [AMD/ATI]
Baffin [Radeon RX 460/560D / Pro 450/455/460/560] (rev cf)
01:00.1 Audio device: Advanced Micro Devices, Inc. [AMD/ATI] Device aae0

$ uname -a
Linux localhost.localdomain 4.16.1-300.fc28.x86_64 #1 SMP Mon Apr 9 15:29:05
UTC 2018 x86_64 x86_64 x86_64 GNU/Linux

Sorry, I don't know what the fedora version corresponds to in terms of
freedesktop version

It happened after leaving pixmark_volplosion_windowed running overnight

08:27:10 kernel: [drm] GPU recovery disabled.
08:27:10 kernel: [drm] GPU recovery disabled.
08:27:10 kernel: [drm] IP block:sdma_v3_0 is hung!
08:27:10 kernel: [drm] IP block:gfx_v8_0 is hung!
08:27:10 kernel: [drm] IP block:gmc_v8_0 is hung!
08:27:10 kernel: [drm:amdgpu_job_timedout [amdgpu]] *ERROR* ring sdma0 timeout,
last signaled seq=1000210, last emitted seq=1000212
08:27:07 kernel: [drm] GPU recovery disabled.
08:27:07 kernel: [drm] GPU recovery disabled.
08:27:07 kernel: [drm] IP block:sdma_v3_0 is hung!
08:27:07 kernel: [drm] IP block:gfx_v8_0 is hung!
08:27:07 kernel: [drm] IP block:gmc_v8_0 is hung!
08:27:07 kernel: [drm:amdgpu_job_timedout [amdgpu]] *ERROR* ring gfx timeout,
last signaled seq=2338524, last emitted seq=2338526

Then (I think) about 30 minutes later the machine either panicked, or locked
up.

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