Comment 1 for bug 1329956

I'm having this same issue. Tried with both FreeNAS (which uses FreeBSD 9), and a minimal install of FreeBSD 10. Everything seems to work great up until you try to do a warm boot. I've compiled a custom FreeBSD kernel with everything unnecessary removed, and also changed the number of CPUs assigned to the guest. Nothing seems to work above a single CPU.

I'm on a fully patched Ubuntu 14.04 system. Here is the top of my /proc/cpuinfo from the Ubuntu hypervisor.

processor : 0
vendor_id : GenuineIntel
cpu family : 6
model : 62
model name : Intel(R) Xeon(R) CPU E5-2670 v2 @ 2.50GHz
stepping : 4
microcode : 0x416
cpu MHz : 2500.010
cache size : 25600 KB
physical id : 0
siblings : 20
core id : 0
cpu cores : 10