I am having this query that i installed virtualbox and add new host. but it won't open up Virtualbox facing error saying 'VT-x is used by another hypervisor' and (VERR_VMX_IN_VMX_ROOT_MODE) VirtualBox can't operate in VMX root mode” error in RHEL5.8-64bits OS.
For more detailed find attach snap. Already try to kill kvm. modprobe -r kvm...but its not working..output KVM in use.
How to resolved?
Thanks in advance.