Enable 'ioapic' for the Virtualbox provider
Enable 'ioapic' for the Virtualbox provider

As Virtualbox states in it's man pages: Enabling the I/O APIC is
required for 64-bit guest operating systems. And enabling this option
significantly sped up the performance of my VM.

https://www.virtualbox.org/manual/ch03.html#settings-motherboard

SURFnet/Stepup-VM