Well after I while I figured out that this driver is what locks up my keyboard and mouse after about 20min. Any idea why this is happening and how I could fix this?
Using the on-board lan with some motherboards seems to cause an instability. I am investigating the problem but I have a feeling that a more advanced version of XNU needs to be developed before the problem will be fixed.
If you have an athlon x2 I would suggest turning off cool&quiet and getting the latest Voodoo xnu kernel. Seems to work better that way.