chronyd: Fatal error : Could not open PHC

Solution In Progress - Updated -

Issue

  • Virtual machines on Azure are not synchronizing.
  • chronyd exits with these errors:
Feb 28 12:13:52 localhost chronyd[117445]: Could not open /dev/ptp0 : No such file or directory
Feb 28 12:13:52 localhost chronyd[117445]: Fatal error : Could not open PHC
Feb 28 12:13:52 localhost chronyd[117443]: Could not open PHC

Environment

  • Red Hat Enterprise Linux (RHEL) 8
  • Azure virtual machine

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