[Nouveau] [Bug 93629] [NVE6] complete system freeze, PGRAPH engine fault on channel 2, SCHED_ERROR [ CTXSW_TIMEOUT ]

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=93629

--- Comment #37 from dangelovich at maxpowerindustries.com ---
Same issue, Ubuntu 17 with kernel 4.10.0.32.32

kernel.log shows:
Aug 24 11:05:15 dangelovich-ud kernel: [95310.061112] nouveau 0000:01:00.0:
fifo: SCHED_ERROR 0a [CTXSW_TIMEOUT]
Aug 24 11:05:15 dangelovich-ud kernel: [95310.061118] nouveau 0000:01:00.0:
fifo: gr engine fault on channel 10, recovering...


Then the machine hangs (frozen, but can still move the cursor) and I have to
power off. It's pretty regular at this point, so if more info is required let
me know what and how to get it.

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