Bug#592487:

[Turchaninov Sergey]

yes it's from dmesg from Dom0 on Virtulbox 3.2.6 r63112
with the IO APIC disabled i get the same error and virtual machine (booting
on vbox and running)  is a bit slower.
but it's not critical, virtualbox is used for testing.
just want to help a little by submitting a report.
thank you.