Hello.
I have the same problem, but other error.
When I create machine with 1 CPU (vcpus=1) - all work fine, but when
I create machine with 4 CPU (vcpus=4) I see kernel panic on console:
APIC: Using the MPTable enumerator.
SMP: Added CPU 0 (BSP)
SMP: Added CPU 1 (AP)
SMP: Added CPU 2 (AP)
SMP:
This seems to affect most people trying to use FreeBSD on xen i386 paravirt.
I was trying it on Linode, and got 8.0-RELEASE to actually boot by
hacking MAXCPU to 1 in sys/i386/include/param.h but even then, when it
was under load (building world or lots of ports) it would occasionally
panic.
8-ST