virtualbox.org

A vm based on a p2v clone of running Snow Leopard system starts under v4.1.22 of VirtualBox.
The same vm under v4.2.4 stops with Kernel trap, trapno:0x7, err:0x0.

Console image, VBox.log and VBoxSVC.Log are supplied

Hardware is iMac that came with Leopard 10.5 installed.
OS X Mountain Lion 10.8.2

I think the only way you are going to get a definitive answer is to post this question to the DEVs at bugtracker

Ticket 11288 https://www.virtualbox.org/ticket/11288

Edited 2012 12 21: Same failure on v4.2.6

Ticket Updated 2013-01-18

Comment (by JessePeterson):

May be related to and/or duplicate of #11401, #11288, #11052, #10998.
#10998 seems to have the most discussion and some folks are having success
rolling back to VB 4.1 from 4.2 to allow Mac OS X to boot as a guest
again.

OSX 10.8.4
VBox 4.2.16
and still fails