[Bug 107152] GPU fault detected: 146 / VM_CONTEXT1_PROTECTION_FAULT / ring gfx timeout

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=107152

--- Comment #7 from dwagner <jb5sgc1n.nya at 20mm.eu> ---
(In reply to Andrey Grodzovsky from comment #6)
> dwanger, how quickly is this reproducible ?

With the above video playback test (which I should refer to as the "Othan"
test, because that is the name of the song in the video) actually quite fast -
never took more than 10 minutes so far to get to the crash.

> A wild guess, what if you boot kernel with IOMMU disabled ? Add iommu=off to
> grub command line.

Tried this: No difference, two attempts with current amd-staging-drm-next, one
with hw_update_mode=0 and one with hw_update_mode=3, both crashed in < 1 minute
of replay.

Interestingly, the "Othan test" can even crash the 4.13 kernel quicker then the
usual one or two days of uptime I can get with that old kernel.

There isn't really anything special with the video other than it being encoded
at only 6 frames per second.

And btw., the video replay crashes even with --vo=xv, so without mpv making use
of opengl. Replay does not crash with --vo=null. 

In contrast, when I replay videos with the usual 24fps, this runs much longer
without crashing.

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