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InSource Solutions

TN PT114 Memory leaks with Virtual Machines running Wonderware

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It has been reported that there are incidences where VM (virtual machines) running Wonderware software experiences a significant loss of memory causing the VM to eventually lockup.  Rebooting the VM solves the problem temporarily, but the problem comes back within a short period of time.  Normal troubleshooting does not reveal any obvious memory leaks caused by running processes.


  • Author: Rufus Handsome
  • Published: 12/07/2015
  • Applies to: All Wonderware versions running on VMWare ESXi v5.1, 5.5, 5.5 Update 1




VMWare has acknowledged that this is a problem in the 5.5 versions of their ESXi software.  The link below describes the problem in detail and how to fix it.