Intel Processor E5 v2 issue CA135 "Incorrect Page Translation when EPT is enabled"

Solution Unverified - Updated -

Issue

  • Intel describes erratum CA135 in Xeon E5 v2 CPUs as follows (details in this document):
    If EPT (Extended Page Tables) is enabled, then a complex sequence of internal processor events may result in unexpected page faults or use of incorrect page translations.

  • This erratum affects VMware

  • Does this affect RHEL KVM guests?

  • Does this affect RHEL KVM hosts?

Environment

  • Intel Xeon Processor E5 v2
  • KVM Hypervisor
  • Red Hat Enterprise Linux 7
  • Red Hat Enterprise Linux 6
  • Red Hat Enterprise Linux 5
  • Red Hat Enterprise Linux 4
  • Red Hat Enterprise Virtualization (RHEV) hypervisors based on the above RHEL versions

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