﻿id,summary,reporter,owner,description,type,status,component,version,resolution,keywords,cc,guest,host
10965,Cannot start VM in Mac OS X 10.8.2 => Fixed in SVN,rdwdivx,,"I have already upgraded to Vbox 4.2 and it was working fine. I then upgraded to OS X 10.8.2 today, and when booting any VM, I get the following error: 

VT-x is being used by another hypervisor. (VERR_VMX_IN_VMX_ROOT_MODE).
VirtualBox can't operate in VMX root mode. Please close all other virtualization programs. (VERR_VMX_IN_VMX_ROOT_MODE).

Apparently this was an issue already present in the 10.8.2 beta, but it was not fixed on Apple's side. ",defect,closed,other,VirtualBox 4.2.0,fixed,10.8.2 vmx,,Linux,Mac OS X
