A lengthy discussion thread on Apple’s discussion forum reveals an issue that some new 2011 MacBook Pro owners have been having with their new machines. A MacRumors discussion thread also mirrors some of the complaints. Forum user lithast describes his situation:
For example if I boot up a VM using Fusion the temperature will spike up above 90 degrees and the machine will lock up most of the time. The machine appears locked (cannot move the mouse at all and keyboard is unresponsive). I can SSH into the machine still and it still is running however. This is one example but it will freeze under a number of circumstances where the CPU/GPU load is very high (rendering, DJ Software, compiling so far in my travels).
There’s been speculation that the issue is related to the graphics driver or power management, and it seems the issue is reliably reproducible. A wiki has been organized to document the issue. Apple is reportedly aware of the issue, but no reliable solution has been provided.