RHV: snapshot deletion makes VM go Not Responding

Solution Verified - Updated -

Issue

  • After deleting snapshot, VM is in Not Responding state.
  • After a few minutes all VMs on the host switched to Not Responding state.
  • Restarting VDSM restored all VMs to Up, except a one.

Environment

  • Red Hat Virtualization 4.2
    • Red Hat Enterprise Linux 7.5
      • qemu-kvm-rhev-2.10

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