CRI-O process on RHEL 7 OpenShift 4 Worker Nodes repeatedly crashes under load

Solution In Progress - Updated -

Issue

  • When running Red Hat Enterprise Linux 7 worker nodes on Red Hat OpenShift Container Platform, the crio process appears to be crashing and dumping cores visible in coredumpctl on the node:
# coredumpctl
  • What is the cause of this crash and how can it be prevented?

Environment

  • Red Hat Enterprise Linux 7 Worker Nodes
  • Red Hat OpenShift Container Platform 4

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