Comment 72 for bug 1217585

I am have the same issue. Keyboard not work at all (can't turn NumLock off
or CapsLock on) but mouse slowly moving for few second.
system unreachele from the network.
http://www.smolts.org/client/show/pub_513bfa10-f0cf-4cdf-8586-2ff91bc9bcc2

In /var/log/messages, the last recorded lines are:
Dec 9 11:45:08 s kernel: [ 2221.930005] [drm] nouveau 0000:01:00.0: PGRAPH TLB flush idle timeout fail: 0x00b00403 0x00000008 0x00005068 0x00000000
Dec 9 11:45:09 s kernel: [ 2221.930005] [drm] nouveau 0000:01:00.0: vm flush timeout: engine 0
Dec 9 11:45:12 s kernel: [ 2226.125921] [drm] nouveau 0000:01:00.0: PRAMIN flush timeout
Dec 9 11:45:12 s kernel: [ 2228.584722] [drm] nouveau 0000:01:00.0: PFIFO_INTR 0x04200000 - Ch 4
Dec 9 11:45:14 s kernel: [ 2230.376011] [drm] nouveau 0000:01:00.0: vm flush timeout: engine 5
Dec 9 11:45:16 s kernel: [ 2230.585544] [drm] nouveau 0000:01:00.0: PGRAPH TLB flush idle timeout fail: 0x00b00403 0x00000008 0x00005068 0x00000000