The attached bug report is from the 337.19 driver in a clean state. The kernel messages when the driver enters a corrupt state can be seen here: http://fpaste.org/99392/39934666/
- Start a flash animation in Firefox.
- Exit the flash animation.
- Firefox will freeze - kernel BUG asserts at this point.
- Firefox is not able to be closed (zombie state) and the laptop must be hard rebooted (freezes upon soft reboot).
The 331.49 is the last driver that is stable on my laptop that exhibits this problem. My other computers (one with IOMMU, one without) do not have this issue with newer drivers.