[Nouveau] [Bug 90453] [NVE4] Desktop freezes & PDISP errors & PFIFO errors

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=90453

--- Comment #11 from Ilia Mirkin <imirkin at alum.mit.edu> ---
(In reply to Michiel Helvensteijn from comment #10)
> I was finally able to connect to my pc *after* a freeze-up using SSH. Here
> is the coinciding dmesg output:
> 
> [ 8970.897260] nouveau E[   PFIFO][0000:01:00.0] SCHED_ERROR [ CTXSW_TIMEOUT
> ]
> [ 8970.897265] nouveau E[   PFIFO][0000:01:00.0] PGR engine fault on channel
> 6, recovering...

Hrmph... could well have been fixed by one of the ctxsw changes since 3.15 :(

Sorry, this will require someone who knows what they're talking about (i.e. not
me) to properly diagnose.

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