Mac OS X Server Guest Machine reboot very slow

[zhiyuanzhou]

I'm running Mac OS X Server 10.6.2 guest machine on Mac OS X 10.6.5 host machine.

When I reboot guest OS from inside the guest machine (sudo reboot), it takes a long time(>5 minutes)

for the VM to finish reboot. If I simply shutdown and power on the guest machine from fusion, it's

much fast.

What could be the cause?

Thanks in advance

[ColoradoMarmot]

What's the host hardware and guest configuration?  Sounds like you're out of resources.

[zhiyuanzhou]

I don't think it's out of resource.

The host machine is 2.66GHZ intel Core 2 Duo processor with 2GB memory; while the guest's 1GB memory with 1 Processor