Commen=
t # 7
on bug 10715=
2
from dwagner
(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 "Ot=
han"
test, because that is the name of the song in the video) actually quite fas=
t -
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=3Doff to
> grub command line.
Tried this: No difference, two attempts with current amd-staging-drm-next, =
one
with hw_update_mode=3D0 and one with hw_update_mode=3D3, both crashed in &l=
t; 1 minute
of replay.
Interestingly, the "Othan test" can even crash the 4.13 kernel qu=
icker 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 enco=
ded
at only 6 frames per second.
And btw., the video replay crashes even with --vo=3Dxv, so without mpv maki=
ng use
of opengl. Replay does not crash with --vo=3Dnull.=20
In contrast, when I replay videos with the usual 24fps, this runs much long=
er
without crashing.