Recently i found several customers that are running Hyper-V R2 under AMD Family 10h processors and they experienced server reboots on the source host that start the migration. There isn’t any information on the event viewer or any dump cause the root cause is a hardware problem. This crash was reported by AMD and our product team help to fix the issue with a software workaround. This issue mostly happens with virtual machines with 2 or more processors. Most of the customers who reported the issue were able to live migrate VMs with 1 virtual processors.