Have you enabled "PAE/NX" setting" on your virtual box? You can find this setting in
Virtual Box VM (right click) --> Settings --> System --> Processor (Tab)--> "Enable PAE/NX" (checkbox).
Fr more detail on this please refer to the blog: http://www.tweakhound.com/virtualbox/vb4page2.html
Thanks Jay, I'll check this today. But it was working perfectly until yesterday.
Suddenly it started giving me that message. I didn't change anything
That message "no valid rapl domains found in package 0" should be just a warning, i guess it should not stop the VM to bootup. Are you facing the issue that due to this message the VM is not booting?
Also it should not have any negative impact on the performance or stability of the VMs as well.