I was prepared to release a new FreeBSD 6.1-based Sguil virtual machine today, but I ran into an old problem. The VMware Server Release Notes say "Full support for 32-bit and 64-bit FreeBSD 6.0 as guest operating systems." I expected that meant the timing problems that had forced me to use FreeBSD 5.x were no longer a problem with FreeBSD 6.x.
Well, today I built a FreeBSD 6.1 guest VM on a Windows XP SP2 host running VMware Server 1.0.0 build-28343. It turns out the guest OS runs at about half speed. I am apparently not the only person with this problem; a #snort-gui regular mentioned running ntpdate every 3 seconds (!!) to mitigate this problem.
I posted this Vmware forum question to see if anyone responds with similar experiences. If you are running FreeBSD 6.x on VMware Server, how are you handling time problems?