I updated today to current tumbleweed and noticed that I get a freezing system
(sometimes just the GUI and sometimes entire network loss).

Not sure when this started, because downgrading to last februar snapshot has
the same issue now.

I made sure that any trace of virtualbox and nvidia drivers got removed, but I
can still triggering it by opening a web browser with many tabs.

Last words in dmesg are:

[  209.486479] nouveau 0000:02:00.0: fifo: fault 01 [WRITE] at 0000000000048000
engine 03 [PEEPHOLE] client 08 [HUB/BAR_WRITE] reason 02 [PAGE_NOT_PRESENT] on
channel 2 [001fcd0000 Xorg.bin[1343]]
[  209.486502] nouveau 0000:02:00.0: fifo:000000:0002:[Xorg.bin[1343]] rc
scheduled
[  209.486509] nouveau 0000:02:00.0: fifo:000000: rc scheduled
[  209.486518] nouveau 0000:02:00.0: fifo: INTR 08000000
[  209.486541] nouveau 0000:02:00.0: fifo:000000:0002:0002:[Xorg.bin[1343]]
errored - disabling channel
[  209.486549] nouveau 0000:02:00.0: Xorg.bin[1343]: channel 2 killed!
[  209.503310] nouveau 0000:02:00.0: fifo: fault 01 [WRITE] at 0000000000048000
engine 03 [PEEPHOLE] client 08 [HUB/BAR_WRITE] reason 02 [PAGE_NOT_PRESENT] on
channel 2 [001fcd0000 Xorg.bin[1343]]


The last line is repeating in an endless loop afterwards, until the system is
freezing entirely a few minutes later.

The GFX card is a "NVIDIA Corporation GF119 [NVS 310] (rev a1)" running with
two displays.