Comment # 1 on bug 57350 from Brandon Smith

Same here on my MacbookPro(6,2) with NV50 graphics.

Here's an example error line:
[  182.772471] nouveau E[     PFB][0000:01:00.0] trapped read at 0x000070ea38
on channel 0x0001fed0 BAR/PFIFO_READ/FB reason: PAGE_NOT_PRESENT

I can narrow the version down further:
3.6.10 works
3.7.0 does not.