![[BSOD] UNEXPECTED_KERNEL_MODE_TRAP - tdx.sys stopcode 0x7f daily on VMware fix](http://35.204.150.161/content/images/wordpress/2016/07/0x0000007f.png)
Today I was fortunate again to do a debug, at an environment we had several BSOD/bugcheck errors on a daily basis, sometimes twice a day. This time it was probably caused by: tdx.sys. The stopcode was 0x7f. This time the error occured on a Windows Server 2008 R2 virtual machine hosted by a VMware ESXi 5.5 server, with VMware tools ‘complete’ installed. The problem seems a bit similar to this post and the steps towards a solution are also the same, it’s just about to remove the VMCI driver for VMware vShield Endpoint…
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It’s always fun to do some bugcheck analysis for customers. This time a customer with a BSOD and stopcode 0x00000050. You can find the Bugcheck Analysis reports later in this post. It seems a “Platform Update for Windows 7” causes this problem if the system has hybrid videocards. And on the page only Dell, HP, Lenovo and Sony systems listed, but probably there are more systems affected with this update. A fix is also available by Microsoft in KB2834140, install this along with the latest videocard drivers for your system. This update fixes the following issue…
Again a nice Blue Screen of Dead troubleshooting today for me. The server causes sometimes a Blue Screen with stopcode 0x7f. The configuration here is a Windows Server 2008 R2 with Kaspersky Endpoint Security for Windows version 10.1.0.867 and after updating to version 10.2.1.23 the BSOD still persists. The bugcheck shows in the eventviewer: The computer has rebooted from a bugcheck. The bugcheck was: 0x0000007f (0x0000000000000008, 0x0000000080050031, 0x00000000000006f8, 0xfffffa6003d97879). So we put this dumpfile into WinDbg to analyze the problem and we get this output. 1: kd> !analyze -v ******************************************************************************* * * * Bugcheck Analysis * * * ******************************************************************************* UNEXPECTED_…
At a networksite we migrated a few weeks ago from VMware ESXi 5.1 to version 5.5, there was a server that crashed daily with a BSOD/bugcheck error. We couldn’t find a cause for this directly, but it seems there is a memory leak caused by VmWare tools VMCI driver VMware vShield Endpoint TDI manager in VMware ESXi 5.5 and this problem is still here with an update to version 5.5 update 1. The problem lies in the VMCI driver, that comes when you install VMware tools with the option ‘complete’ instead…