[Bug 96781] [skl dp-mst] oops in atomic commit

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=96781

--- Comment #32 from bugzilla at colorremedies.com ---
Created attachment 128882
  --> https://bugs.freedesktop.org/attachment.cgi?id=128882&action=edit
journalctl 4.8.17

I'm hitting this rarely when hitting a key to "wake up" the display; system is
not in suspend but gnome-shell has dimmed the display. Hitting a key is what
happened 2 seconds before this crash. Including the entire journal output. Two
call traces are there, maybe the first one caused the instability leading to
the first. I was able to login remotely with ssh; but the keyboard and mouse
were unresponsive after this oops, I couldn't get to a VT.

4.8.17-200.fc24.x86_64

Parameters i915.enable_guc_loading=-1 i915.enable_guc_submission=-1 are used
for this event.

[12446.222314] f25h kernel: WARNING: CPU: 3 PID: 1549 at
drivers/gpu/drm/i915/intel_display.c:13714
intel_atomic_commit_tail+0x1043/0x1050 [i915]
[12446.222320] f25h kernel: pipe A vblank wait timed out


and then


[12534.964553] f25h kernel: BUG: unable to handle kernel paging request at
00007fb63e44c94b
[12534.964737] f25h kernel: IP: [<ffffffffa80e46eb>] __wake_up_common+0x2b/0x80
[12534.964865] f25h kernel: PGD 2b2190067 PUD 0 
[12534.964946] f25h kernel: Oops: 0000 [#1] SMP

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