System hangs during VMWare snapshot under heavy cpu load

Solution In Progress - Updated -

Issue

  • Heavy CPU activity will cause a A VMWare Snapshot to deadlock and the guest will hang indefinitely
  • Unlike the snapshot issue linked below this does not require any IO and occurs on 5.5 update 3
    o https://kb.vmware.com/selfservice/microsites/search.do?language=en_US&cmd=displayKC&externalId=1018194
  • The snapshot will fail with the error below:
An error occurred while saving the snapshot: msg.
snapshot.error-QUIESCINGERROR.

Environment

  • RHEL 6.7 - kernel-2.6.32-573.12.1.el6.x86_64
  • VMWare guest
    • ESXi 5.5 update 3a

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