Windows – Hyper-V Manager: right-clicking on local or remote VM crashes MMC snap-in

hyper-vwindows

I have a Windows Server 2008 R2 Enterprise SP1 machine that I log into and use to manage virtual machines running on multiple Hyper-V servers on our domain. Sometimes, when I right-click on a local or remote VM, the Hyper-V Manager will crash and display the following error message:

Screenshot of Hyper-V Manager showing the error message "MMC has detected an error in a snap-in and will unload it."

If I use the Actions menu on the lower right, it works just fine, but for some reason right-clicking causes MMC to stop working. Is there any way to fix this issue? Here are the full details of the error message.

Description:
  Stopped working

Problem signature:
  Problem Event Name:   CLR20r3
  Problem Signature 01: mmc.exe
  Problem Signature 02: 6.1.7600.16385
  Problem Signature 03: 4a5bc808
  Problem Signature 04: Microsoft.Virtualization.Client
  Problem Signature 05: 6.1.0.0
  Problem Signature 06: 4ce7c9e3
  Problem Signature 07: 342
  Problem Signature 08: 1f
  Problem Signature 09: System.OverflowException
  OS Version:   6.1.7601.2.1.0.274.10
  Locale ID:    1033

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Also this stack trace:

FX:{922180d7-b74e-45f6-8c74-4b560cc100a5}

Exception has been thrown by the target of an invocation.

  at Microsoft.ManagementConsole.Internal.SnapInMessagePumpProxy.OnThreadException(Object sender, ThreadExceptionEventArgs e)
   at System.Windows.Forms.Application.ThreadContext.OnThreadException(Exception t)
   at System.Windows.Forms.Control.WndProcException(Exception e)
   at System.Windows.Forms.NativeWindow.Callback(IntPtr hWnd, Int32 msg, IntPtr wparam, IntPtr lparam)
   at System.Windows.Forms.UnsafeNativeMethods.CallWindowProc(IntPtr wndProc, IntPtr hWnd, Int32 msg, IntPtr wParam, IntPtr lParam)
   at System.Windows.Forms.NativeWindow.DefWndProc(Message& m)
   at System.Windows.Forms.ListView.WndProc(Message& m)
   at Microsoft.Virtualization.Client.Controls.EnhancedListView.WndProc(Message& m)
   at System.Windows.Forms.Control.ControlNativeWindow.WndProc(Message& m)
   at System.Windows.Forms.NativeWindow.Callback(IntPtr hWnd, Int32 msg, IntPtr wparam, IntPtr lparam)

Best Answer

Looks to be an issue with HyperV snapin crashing when running on a second monitor

You aren't going to believe this. We figured out what it was finally and it was fairly complicated :)

We found a bug with the Hyper-V MMC snap in that is very repeatable. With Win2k8R2, hook up a machine to an external monitor (I was doing this on a laptop). Then, move the MMC (server manager in this case) the external monitor. Try to right-click on any VM in Hyper-V and it will crash. As soon as you move it back to the main monitor it works fine again.

Go figure!

I can confirm these results on my system, which has 2 GPUs with 4 monitors total (See below). If i use HyperV manager on the primary display or lower half of monitors 3 and 4 then everything works, but as soon as I move it above the vertical height of the primary display and try to right click it will crash. I have been working with Microsoft Support to resolve the issue (SR number 112110960192323 ) and will follow up if a hotfix or workaround is found.

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