[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 #39 from Dustin Spicuzza <dustin at virtualroadside.com> ---
I'm on Fedora 27, and I get the freeze with the following messages in dmesg:

[    0.000000] Linux version 4.13.12-300.fc27.x86_64
(mockbuild at bkernel01.phx2.fedoraproject.org) (gcc version 7.
2.1 20170915 (Red Hat 7.2.1-2) (GCC)) #1 SMP Wed Nov 8 16:38:01 UTC 2017

[ 3571.488551] nouveau 0000:01:00.0: gr: TRAP ch 14 [003f543000 Xwayland[3020]]
[ 3571.488560] nouveau 0000:01:00.0: gr: GPC0/TPC0/TEX: 80000049
[ 3571.488564] nouveau 0000:01:00.0: gr: GPC0/TPC1/TEX: 80000049
[ 3571.488568] nouveau 0000:01:00.0: gr: GPC0/TPC2/TEX: 80000049
[ 3571.488572] nouveau 0000:01:00.0: gr: GPC0/TPC3/TEX: 80000049
[ 3571.488581] nouveau 0000:01:00.0: fifo: read fault at 0004bbc000 engine 00
[PGRAPH] client 0a [GPC0/] reason 02 [PAGE_NOT_PRESENT] on channel 14
[003f543000 Xwayland[3020]]
[ 3571.488583] nouveau 0000:01:00.0: fifo: gr engine fault on channel 14,
recovering...
[ 3571.488779] nouveau 0000:01:00.0: Xwayland[3020]: channel 14 killed!

lspci:

01:00.0 VGA compatible controller: NVIDIA Corporation GF106 [GeForce GTS 450]
(rev a1)

packages:

xorg-x11-drv-nouveau-1.0.15-3.fc27

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