There is apparently a kernel bug that creates a kernel panic when starting a windows guest in vmware workstation. I have experienced this bug on two machines, both with workstation 8.0.6 but it has been reported with other versions as well: https://communities.vmware.com/message/2318686 . Booting kernel 2.6.32-358.23.2.el6.x86_64 instead of 2.6.32-431.el6.x86_64 resolves the issue. Just a heads up for those who may encounter it. Cheers, B.J.