Multiple CPU NMI messages are observed with reason 2d on AMD EPYC 7551 CPU.

Solution In Progress - Updated -

Issue

  • Multiple CPU NMI messages are observed with reason 2d on AMD EPYC 7551 CPU.
kernel: Uhhuh. NMI received for unknown reason 2d on CPU 56.
kernel: Uhhuh. NMI received for unknown reason 2d on CPU 86.
kernel: Uhhuh. NMI received for unknown reason 2d on CPU 24.

Environment

  • RHEL7.6
  • AMD EPYC 7551.
  • Dell PowerEdge R7425

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