Occasionally, when switching any video playback into full-screen, all system
video, except for the mouse pointer, hangs until reboot. It is possible to SSH
into the machine for a while until it freezes completely.

Video card: NVIDIA Corporation GK104M [GeForce GTX 670MX] (rev a1)
Operating system: Archlinux with linux 3.19.3-3-ARCH

nouveau-fw is installed and nouveau.config=NvGrUseFW=1 is in the kernel
parameters.

I logged in via SSH into the blocked machine and dumped dmesg's output, it
produced a 6MiB sized file of only:

[  432.267634] nouveau E[   PFIFO][0000:01:00.0] PBDMA0: ch 6
[gstglcontext[1984]] subc 0 mthd 0x000c data 0x2001054e
[  432.267645] nouveau E[   PFIFO][0000:01:00.0] PBDMA0: METHOD
[  432.267647] nouveau E[   PFIFO][0000:01:00.0] PBDMA0: ch 6
[gstglcontext[1984]] subc 0 mthd 0x000c data 0x2001054e
[  432.267658] nouveau E[   PFIFO][0000:01:00.0] PBDMA0: METHOD
[  432.267661] nouveau E[   PFIFO][0000:01:00.0] PBDMA0: ch 6
[gstglcontext[1984]] subc 0 mthd 0x000c data 0x2001054e
[  432.267672] nouveau E[   PFIFO][0000:01:00.0] PBDMA0: METHOD
[  432.267674] nouveau E[   PFIFO][0000:01:00.0] PBDMA0: ch 6
[gstglcontext[1984]] subc 0 mthd 0x000c data 0x2001054e
[  432.267685] nouveau E[   PFIFO][0000:01:00.0] PBDMA0: METHOD
[  432.267687] nouveau E[   PFIFO][0000:01:00.0] PBDMA0: ch 6
[gstglcontext[1984]] subc 0 mthd 0x000c data 0x2001054e
[  432.267698] nouveau E[   PFIFO][0000:01:00.0] PBDMA0: METHOD
[  432.267701] nouveau E[   PFIFO][0000:01:00.0] PBDMA0: ch 6
[gstglcontext[1984]] subc 0 mthd 0x000c data 0x2001054e
[  432.267712] nouveau E[   PFIFO][0000:01:00.0] PBDMA0: METHOD
[  432.267714] nouveau E[   PFIFO][0000:01:00.0] PBDMA0: ch 6
[gstglcontext[1984]] subc 0 mthd 0x000c data 0x2001054e
[  432.267725] nouveau E[   PFIFO][0000:01:00.0] PBDMA0: METHOD
[  432.267727] nouveau E[   PFIFO][0000:01:00.0] PBDMA0: ch 6
[gstglcontext[1984]] subc 0 mthd 0x000c data 0x2001054e
[  432.267738] nouveau E[   PFIFO][0000:01:00.0] PBDMA0: METHOD
[  432.267741] nouveau E[   PFIFO][0000:01:00.0] PBDMA0: ch 6
[gstglcontext[1984]] subc 0 mthd 0x000c data 0x2001054e
[  432.267752] nouveau E[   PFIFO][0000:01:00.0] PBDMA0: METHOD
[  432.267754] nouveau E[   PFIFO][0000:01:00.0] PBDMA0: ch 6
[gstglcontext[1984]] subc 0 mthd 0x000c data 0x2001054e
[  432.267765] nouveau E[   PFIFO][0000:01:00.0] PBDMA0: METHOD
[  432.267767] nouveau E[   PFIFO][0000:01:00.0] PBDMA0: ch 6
[gstglcontext[1984]] subc 0 mthd 0x000c data 0x2001054e
[  432.267777] systemd-journald[276]: /dev/kmsg buffer overrun, some messages
lost.