Sporadic crashes of OEM agent(13.3.0.0.0)

Agent Version     : 13.3.0.0.0

OMS Version      : 13.3.0.0.0

Protocol Version    : 12.1.0.1.0

The OEM agent running on RHEL7 crashes sporadically without leaving any helpful information in the logs. There is no helpful information in system logs that matches with the time of agent crash either. Here is what I find in "emagent.nohup".

Checking status of EMAgent

EMAgent exited at <time_stamp> with signal 9

EMAgent has been forcibly killed.

Stopping other components.

Commiting Process death.

writeAbnormalExitTimestampToAgntStmp: exitCause=KILLED : restartRequired=0

Exiting watchdog loop