Why does a Cisco USC blade with RHEL 6 return 'Marking TSC unstable due to check_tsc_sync_source failed' errors ?

Solution Verified - Updated -

Issue

Below errors seen on Cisco UCS blade with RHEL 6 systems:

Aug  4 05:52:51 <host> kernel: TSC synchronization [CPU#0 -> CPU#24]:
Aug  4 05:52:51 <host> kernel: Measured 2 cycles TSC warp between CPUs, turning off TSC clock.  <<-----
Aug  4 05:52:51 <host> kernel: Marking TSC unstable due to check_tsc_sync_source failed

Environment

  • Red Hat Enterprise Linux 6
  • Cisco USC blade
  • UCSB-EX-M4-1
  • Cisco M4 Systems

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