UDP multicast missed heartbeats observed on real time kernel

Solution In Progress - Updated -

Issue

  • UDP multicast cluster heartbeat packets are lost on real time kernel.
  • 0 loss is observed on the same version standard kernel.

Environment

  • Red Hat Enterprise Linux for Real Time 7.4
  • kernel-3.10.0-693.11.1.rt56.632.el7
  • HP ProLiant BL460c Gen9
  • Missing rt-setup package

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