Timekeeping issues with Intel® Xeon® Processor Scalable Family CPUs

Solution Verified - Updated -

Issue

Unstable timestamp counter on Intel(R) Xeon(R) Gold 6154 (and likely whole Scalable Platform Skylake family of Xeon CPUs) is causing issues with kernel tsc clocksource calibration and NTP synchronization.

Environment

  • Red Hat Enterprise Linux 7
  • Intel® Xeon® Processor Scalable Family
    • reported on Intel(R) Xeon(R) Gold 6154 CPU
  • HPE ProLiant DL360 Gen10
    • BIOS U32 09/29/2017

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