Search the VMware Knowledge Base (KB)
View by Article ID

Virtual machine in ESXi is unresponsive with a non-paged pool memory leak (2077302)

  • 40 Ratings
Language Editions


A virtual machine in ESXi becomes unresponsive or experiences a blue diagnostic screen.
Note: For additional symptoms, see the Additional Information section.


Install VMware Tools 10.0.8 to resolve the issue of memory leak in ESXi with VMware Tools versions 9.4.5, 9.4.0, and 9.0.5.


This issue occurs because vShield Endpoint Thin Agent driver (vsepflt.sys) and the vShield Endpoint TDI Manager driver (vnetflt.sys) cause a non-paged pool memory leak on the Microsoft guest operating system where the endpoint module is installed.


This issue is resolved in VMware Tools 10.0.8, available at VMware Downloads.
If the issue persists:

Additional Information

 You experience these additional symptoms:
  • This issue occurs after you upgrade to ESXi 5.5 GA, ESXi 5.5 Update 1, or ESXi 5.1 Patch 03 with VMware Tools versions 9.4.5, 9.4.0, 9.0.5, including the VMCI vShield driver.
  • The C:\Windows\Minidump or %SystemRoot%\Minidump\ memory.dmp file on the affected virtual machine guest operating system indicates that the VFIL or VNET tags are consuming a large amount of non-paged pool memory.
  • If you track the usage of the non-paged pools with PoolMon, you see either the VFIL or VNET tag growing without occurrence of de-allocation.


Vsepflt.sys, vnetflt.sys, BSOD

See Also

Update History

06/05/2015 - Updated ESXi 5.1 resolution to patch ESXi510-201410001.

Request a Product Feature

To request a new product feature or to provide feedback on a VMware product, please visit the Request a Product Feature page.


  • 40 Ratings

Did this article help you?
This article resolved my issue.
This article did not resolve my issue.
This article helped but additional information was required to resolve my issue.

What can we do to improve this information? (4000 or fewer characters)

Please enter the Captcha code before clicking Submit.
  • 40 Ratings