Large clock drift when migrating a guest between mis-matched CPU clock speed
Issue
In RHEL 5.5 64 bit, when using the kvm clock, if that machine is live migrated to another machine with a different CPU clock speed, the clock will consistently lose or gain time. Ntpd is not able to keep the system time correctly.
Environment
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Red Hat Enterprise Linux 5 KVM
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RHEV 2.2.0
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