Thursday, June 2, 2016

VMSS2Core and Windbg saved the day!!!!

Good day All,

Welcome back!!! As part of root cause analysis we investigated 2 VM's issues and fixed them so thought of sharing this to all so that little steps from us help in fixing lot of problems.

We had 2 VM's ,one Windows 2008 and the other one is Windows 2012 both was in hung state.

When the Server was hung took a snapshot of the Server and using the vmss2core.exe generated the dump for it.
If you need more on vmss2core.exe check my other post

Windows 2008:
So using Windbg started to analyze the dump, the command i gave this time was !memusage























So out of 4 GB memory only 21 MB free space and only 448KB in standby causing the Server to run out of memory.


Windows 2012:

In Windbg i used this time !vm and this showed me like 500+ process of wmiprvse.exe.. So we know the issue what caused Server to hung.































Please bookmark this link that gives you a list of commnon Windbg command

https://blogs.msdn.microsoft.com/willy-peter_schaub/2009/11/27/common-windbg-commands-reference/

Hopefully this helps someone!!! and until next one you all have a good day!!!!

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