I have a strange Stuck Problem with VMware Fusion and Ubuntu 12.04 as Guest System.
On High Loaded process the System sticks with "Soft Lockup CPU Stuck" and I have to reboot the VM. The Same System via VirtualBox works fine but VirtualBox Performance is bad, especially I/O.
This happens if I use 2 CPU Cores. With only 1 CPU Core the VM under VMware Fusion works without any Problem. However, I need 2 Cores. Is there any fix for this?