id summary reporter owner description type status component version resolution keywords cc guest host 6835 invalid rdmsr instructions do not cause a #GP fault in the guest Tracy Camp executing rdmsr with explicitly or implicitly invalid MSR values does not cause a #GP fault to be reflected to the guest. I primarily have noticed this within a device driver running under windows 2008r2, but this seems to be a more fundamental feature of the architecture that should not have an OS dependency. defect closed VMM VirtualBox 3.1.8 fixed MSR Windows Windows