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<b><a class="bz_bug_link
bz_status_NEW "
title="NEW - [Vega10] GPU lockup on boot: VMC page fault"
href="https://bugs.freedesktop.org/show_bug.cgi?id=105251#c23">Comment # 23</a>
on <a class="bz_bug_link
bz_status_NEW "
title="NEW - [Vega10] GPU lockup on boot: VMC page fault"
href="https://bugs.freedesktop.org/show_bug.cgi?id=105251">bug 105251</a>
from <span class="vcard"><a class="email" href="mailto:andrey.grodzovsky@amd.com" title="Andrey Grodzovsky <andrey.grodzovsky@amd.com>"> <span class="fn">Andrey Grodzovsky</span></a>
</span></b>
<pre>(In reply to CheatCodesOfLife from <a href="show_bug.cgi?id=105251#c22">comment #22</a>)
<span class="quote">> You're welcome.
>
> Not the exact same problem, no. I can get a hard-lock by trying to use
> amdvlk to play rpcs3, but it doesn't produce the same error and it's not as
> consistent (takes up to 15 minutes to crash)
>
> Not sure if it's worth noting but I went back and tried every Cemu version
> back to 1.5 and a lot of wine versions going back to 2.8. It happens every
> time as soon as the game loads.</span >
Let's try to get some debug info for the VMC page fault then -
Clone and build our open source register analyzer from here -
<a href="https://cgit.freedesktop.org/amd/umr/">https://cgit.freedesktop.org/amd/umr/</a>
Install trace-cmd utility
Load driver with cmd line parameter amdgpu.vm_fault_stop=2 from grub
P.S Best to use latest kernel from here -
<a href="https://cgit.freedesktop.org/~agd5f/linux/log/?h=amd-staging-drm-next">https://cgit.freedesktop.org/~agd5f/linux/log/?h=amd-staging-drm-next</a>
After desktop is loaded type
sudo trace-cmd start -e dma_fence -e gpu_scheduler -e amdgpu -v -e
"amdgpu:amdgpu_mm_rreg" -e "amdgpu:amdgpu_mm_wreg" -e "amdgpu:amdgpu_iv"
to enable kernel event tracing log
If possible to launch the game from shell then prepend the command with
GALLIUM_DDEBUG=always
to dump all the MESA commands into files in ~/ddebug_dumps/
Start the game. When the problem happens do the following -
as root
cd /sys/kernel/debug/tracing && cat trace > event_dump
as normal user or root
sudo umr -lb > umr_dump
sudo umr -O verbose,use_colour -R gfx[.] >> umr_dump
sudo umr -O halt_waves,use_colour -wa >> umr_dump
dmesg > dmesg_dump
Upload a tar/zip of all those files + all the files from ~/ddebug_dumps/</pre>
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