FreeBSD 9.1 guest kernel panic

[kaltheat at googlemail.com]

Hi,

I'm using virtualbox-ose-4.2.6 on FreeBSD 9.1-RELEASE amd64 and I'm trying to 
run FreeBSD 9.1-RELEASE amd64 inside a VM. I'm having the following problem: 
Often the guest reboots due to kernel panic. When running a FreeBSD 9.1 guest 
first and then running the FreeBSD 9.1 VM I actually wanted to start, it works. 
I thought that there might be a problem with memory of host machine, but 
memtest86+ didn't find a problem. I used the FreeBSD x64 template to create 
both VMs.

Some hardware information of host:

hw.model: Intel(R) Core(TM)2 Duo CPU     T9400  @ 2.53GHz
hw.realmem: 9596567552

This is shown in log, when VM panics:

00:00:02.812606 Guest Log: BIOS: Boot : bseqnr=3, bootseq=0002
00:00:02.908317 Guest Log: BIOS: Booting from Hard Disk...
00:00:22.453662 PIT: mode=2 count=0x10000 (65536) - 18.20 Hz (ch=0)
00:00:26.344191 Reset initiated by ACPI
00:00:26.344258 Changing the VM state from 'RUNNING' to 'RESETTING'.
00:00:26.372430 CPUMSetGuestCpuIdFeature: Enabled APIC
00:00:26.372479 CPUMClearGuestCpuIdFeature: Disabled x2APIC
00:00:26.372531 PIT: mode=3 count=0x10000 (65536) - 18.20 Hz (ch=0)
00:00:26.377563 PIIX3 ATA: Ctl#0: finished processing RESET
00:00:26.377626 PIIX3 ATA: Ctl#1: finished processing RESET
00:00:26.378734 Changing the VM state from 'RESETTING' to 'RUNNING'.


Do you have a hint?

Regards,
kaltheat