Hello,
I have been experiencing a worrying amount of these ever since I got my RX =
570
a few months ago. I can reproduce the hang quite reliably by with some 3D
workloads, for instance the Unigine Superposition run on High quality or
Witcher 3 (through WINE) crash the GPU quite reliably within minutes.
Once that happens I can always SSH into the machine and try to get at least
some debugging information. Unfortunately, there does not seem to be much t=
o go
on.
dmesg does not tell me more than this:
[ 254.704581] [drm:amdgpu_job_timedout [amdgpu]] *ERROR* ring gfx timeout,
last signaled seq=3D103742, last emitted seq=3D103745
[ 254.704586] [drm] IP block:gfx_v8_0 is hung!
[ 254.704629] [drm] GPU recovery disabled.
Here are a few things I have tried so far:
- Boot with amdgpu.dc=3D0
- Boot with amdgpu.vm_update_mode=3D3
- Force the GPU to max power state
- Disable IOMMU (both by iommu=3Doff and by disabling VT-d in BIOS)
- Boot with amdgpu.gpu_recovery=3D1 (does not produce any additional info)
I grabbed the umr tool to try to get the state of the GPU when in crashes b=
ut
it does not seem to be able to read anything. Running:
umr -R gfx[.]
Leaves me with:
[ERROR]: Could not open ring debugfs file#=20=20
I check that entries in /sys/kernel/debug/amdgpu that look relevant are the=
re,
cat'ing them gives me "Operation not permitted". Yes, I am doing =
it as root.
Once this happens the only way out is a hard reboot.
I am running up-to-date Fedora 28, kernel 4.17.2, Mesa 18.0 series, LLVM 6.=
0.1.
Is there anything else I can do?
Thanks.