Virtual Machines in a RHEV 3.0 environment fail to migrate due to 'soft lockups' on the RHEV-H host on which they are running.

Solution Verified - Updated -

Issue

Live migrations of Virtual Machines were occurring quite frequently due to the PowerSave algorithm being configured. Some of these migrations then began to fail relative to a vdsm process on one of the hosts encountering soft lockup conditions. These had apparently started to occur since upgrading to RHEV-H 6.3.

Environment

  • Red Hat Enterprise Virtualization (RHEV) 3.0
  • Red Hat Enterprise Virtualization Hypervisor (RHEV-H) 6.3

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