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

Subscriber exclusive content

A Red Hat subscription provides unlimited access to our knowledgebase, tools, and much more.

Current Customers and Partners

Log in for full access

Log In

New to Red Hat?

Learn more about Red Hat subscriptions

Using a Red Hat product through a public cloud?

How to access this content