Frequent freezes with drivers/gpu/drm/nouveau/nvif/vmm.c:68
I have recently (few weeks) frequent screen freezes with nouveau (NVIDIA GeForce 8400 GS) under wayland that need a reboot. It's better with X.org, but I still have those kernel error messages (though the graphical session doesn't completly freeze).
Here are attached examples of kernel messages (here with a realtime 5.4.13-rt kernel, but the same with a non realtime 5.5.13). I'm using ArchLinux. bug.txt