3 VM servers all became unresponsive

[Jordie]

All three virtual machines were running on Win7 Host with 16 Gig of RAM:

VM Primary Domain Controller VM SQL Server 2008R2 VM SharePoint 2010 Foundation WFE Pod 0

• I switched to VM SharePoint 2010 Foundation WFE Pod 0 server
• I mounted an ISO disk - the virtual system became unresponsive
• I waited close to 15 minutes - no change in response
• I switched to VM SQL Server 2008R2, and "saved the machine state" - then this virtual system began not responding
• I switched to the VM Primary Domain Controller to "pause it".
• It Paused ok
• Then un-paused VM Primary Domain Controller
• This system then became unresponsive.
• Attempted go to the Oracle VM Box Manager - it became unresponsive.
• Waited close to 15 minutes - no change in response...
• Finally killed them in Windows Task Manager.

• Restarted each VM - Problem on VM Primary Domain Controller

[Jordie]

Logs from all 2 of 3 Virtual Machines during Lockup (max 400K exceeded if include 3rd)