2012 R2 VM on 2008 R2 Server

This may be old news however it’s a good reminder. If you are running Hyper-V on 2008 R2 server and have a 2012 R2 VM server you may notice the VM stops responding and also receive STOP errors.

Read the following MS KB to find the update.

https://support.microsoft.com/en-us/kb/2744129 

What’s the cause? The issue occurs because the Hypervisor does not handle the one-shot synthetic timer correctly.