[Bug 105251] [Vega10] GPU lockup on boot: VMC page fault

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=105251

--- Comment #59 from Benjamin Hodgetts <ben at xnode.org> ---
It's not just Cemu, it looks like it happens in Yuzu too. If you Google for
"VMC page fault" then you'll find people running into that error in various
other programs too.

Personally, this is what I got when running MK8 in Cemu:
==============
[Sat Nov 17 22:29:43 2018] amdgpu 0000:03:00.0: [gfxhub] VMC page fault
(src_id:0 ring:155 vmid:3 pasid:32769, for process Cemu.exe pid 963 thread
Cemu.exe:cs0 pid 1035) at address 0x000080014189a000 from 27
VM_L2_PROTECTION_FAULT_STATUS:0x00301137
(repeated 7 times over the space of a few minutes)
[Sat Nov 17 22:32:44 2018] [drm:amdgpu_job_timedout [amdgpu]] *ERROR* ring
sdma1 timeout, signaled seq=1020, emitted seq=1023
==============

And then this when trying to run Super Mario Odyssey in Yuzu:
==============
[Sat Nov 17 22:47:26 2018] amdgpu 0000:03:00.0: [gfxhub] VMC page fault
(src_id:0 ring:156 vmid:3 pasid:32769, for process yuzu pid 960 thread yuzu:cs0
pid 972 at address 0x000080bd27743000 from 27
VM_L2_PROTECTION_FAULT_STATUS:0x00301138
[Sat Nov 17 22:47:36 2018] [drm:amdgpu_job_timedout [amdgpu]] *ERROR* ring gfx
timeout, signaled seq=24703, emitted seq=24704
==============

I'll look into getting the info dump that was requested earlier in the thread
to see if that helps, but the seemingly abandoned state of this bug is rather
concerning.

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