Nouveau lockups

[Sam Varshavchik]

I started getting random X lockups. They happen randomly. Usually
during video playback, but sometimes also waking up from sleep, and
sometimes when doing something else, no rhyme or reason.

The laptop can be ssh-ed into and rebooted, to completely recover.

I'm running Fedora, and this started to happen with the 5.8 series
kernels, and just happened on 5.9.8, too. The video hardware is
"01:00.0 VGA compatible controller: NVIDIA Corporation GF108GLM
[Quadro 1000M] (rev a1) (prog-if 00 [VGA controller])":

The following stuff gets dropped into syslog, which I believe is the
culprit. Is this a kernel, or an x.org issue?

Nov 22 18:44:56 thinkpad kernel: nouveau 0000:01:00.0: fifo: write
fault at 0004d08000 engine 15 [PCE0] client 01 [PCOPY0] reason 02
[PAGE_NOT_PRESENT] on channel 1 [007fbb3000 DRM]
Nov 22 18:44:56 thinkpad kernel: nouveau 0000:01:00.0: fifo: ce0
engine fault on channel 1, recovering...
Nov 22 18:47:56 thinkpad kernel: nouveau 0000:01:00.0: Xorg[1009]:
failed to idle channel 3 [Xorg[1009]]
Nov 22 18:48:11 thinkpad kernel: nouveau 0000:01:00.0: Xorg[1009]:
failed to idle channel 3 [Xorg[1009]]
Nov 22 18:48:11 thinkpad kernel: nouveau 0000:01:00.0: fifo: read
fault at 0000013000 engine 07 [PFIFO] client 07 [BAR_READ] reason 02
[PAGE_NOT_PRESENT] on channel 3 [007faf2000 Xorg[1009]]
Nov 22 18:48:11 thinkpad kernel: nouveau 0000:01:00.0: fifo: fifo
engine fault on channel 3, recovering...