'Kernel panic - not syncing: Hard LOCKUP' on KVM Hypervisor after update to RHEL7.4 kernel

Solution Verified - Updated -

Issue

  • Physical host rebooted.
  • Hypervisor crashes occasionally during VM migration.
  • A 'Kernel panic - not syncing: Hard LOCKUP' can occur on a KVM Hypervisor after update to RHEL7.4 kernel.

Environment

  • Red Hat Enterprise Linux 7.4 based hosts
  • kernel version 3.10.0-693.el7 or errata kernel such as in the example under 'Diagnostic Steps'
  • Windows guests with more than one virtual CPU
  • the HyperV enlightenment feature hv_time is enabled for Windows guests (default)
  • Red Hat Virtualization (RHV) 4.1

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