WINDBG saved my day one more time!!!!

Good day All,

Sorry its been a very busy couple of Months so started to get sometime so will catch up on couple of topics..

Last couple of days my laptop was acting up and when ever i tried to reboot the Laptop it will through a blue dump.. i thought it was one of thing and when retired again then same error so decided to fix it.

As Laptop was set to configure only Minidump i said to myself lets see if i can find anything in Mini dump if not then will set it for Kernal or Full dump.

Note; if any one wants to know what is difference in Mini,kernal and Full dump kindly google around there are tons of article about it.

So just loaded the windbg and loaded the Mini dump and ran the usual !analyze- v command.

As it couldn't load the Symbol to Module it showing the Module name as ntkrnlmp. If you see the Faulting Module it showing a driver called jpnrna6.

So either you click on that Faulting Module or type lmvm jpnrna6, it will show you more details on the driver.As this is third party driver there was no symbol associated to it was not loading the symbols and correct faulting drivers was not listing in the above !analyze command.

Now that we know the drivers location path, i checked the properties and found that its related to Juniper VPN client.
Searched on the vendor website found a updated drivers, uninstalled the existing VPN client and re-installed it and vola !!! issue got fixed.

So one more reason why little knowledge on windbg will help us do the initial troubleshooting.

Hope this helps someone!!!!