Comment # 48
on bug 102322
from dwagner
(In reply to Andrey Grodzovsky from comment #47) > Created attachment 141174 [details] [review] [review] > add_debug_info.patch > > A am attaching a basic debug patch, please try to apply it. Done. > It should give a > bit more info in dmesg whe VM fault happens. Hmm - I could not see any additional output resulting from it. > Reproduce again like before with the cmd-trace like before and once the > fault happens if possible try quickly run > > sudo umr -O halt_waves -wa > > and only if you still have running system after that do the > sudo umr -O verbose -R gfx[.] > > The driver should be loaded amdgpu.vm_fault_stop=2 from grub Did that - will attach the script "gpu_debug3.sh" and its output - this time, dmesg and trace output are in the same file, if you want to look only at the dmesg part, "grep '^\[' gpu_debug_3.txt" will get it. I reproduced the bug 4 times, on 2 occasions no error was emitted before crashing, the 2 other times both umr commands could still run - since the error message looked the same, I'll attach the shorter file, where the crash occurred more quickly. > Also check if adding amdgpu.vm_debug=1 makes the issue reproduce more quickly I used that setting, but it did not seem to make a difference for how quickly the crash occurred - still "some seconds to some minutes".
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