[Bug 102500] [polaris10, vega10][amd-staging-4.12, amd-staging-drm-next] GPU fault detected, somethimes lockup

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=102500

--- Comment #17 from Dieter Nützel <Dieter at nuetzel-hh.de> ---
(In reply to Christian König from comment #15)
> Created attachment 134082 [details] [review]
> Possible fix
> 
> Please try the attached kernel patch.

Hello Christian,

you've made your 'homework'...;-)

> To repeat my question: Does patch "drm/amdgpu: fix moved list handling in
> the VM" fix the issue?
>
> Do you guys have this in your kernel branch yet? If not that lockup is
> expected.

No, I haven't.
It was fallen into the cranks of the repeated DC rebase of Alex's
'amd-staging-drm-next' tree (didn't noticed it for the last 7 days, Alex
vacation). 
I'll make it short. NO that didn't solve it for me, too.

But _this_ patch is GOLD:
drm-amdgpu-fix-VM-sync-with-always-valid-BOs.mbox

Tested-by: Dieter Nützel <Dieter at nuetzel-hh.de>

Best 'glmark2' Score I've ever seen.
RX580, 8 GB
Xeon X3470, 4/8, 3 GHz
24 GB

glmark2 Score: 6428

with additional load on the gfx cores through parallel running
'opencl-example/run_tests.sh' I got

glmark2 Score: 7574

Good job!

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