The cman service is not starting fenced or dlm_controld on start, and rgmanager subsequently fails to start with "failed acquiring lockspace: Success" in a RHEL 6 High Availability cluster

Issue

• We migrated our VM cluster nodes to vSphere 5.5 from an older version, and now rgmanager fails to start silently. The only error we see is "failed acquiring lockspace: Success"

Mar 06 11:59:37 rgmanager failed acquiring lockspace: Success
Mar 06 11:59:37 rgmanager failed acquiring lockspace: Success

• service cman start is not starting fenced, dlm_controld, or gfs_controld, and this results in other services not starting or operating correctly.