I have uninstalled Symantec but the crash continued. At last, I wrote a script to auto check and kill 'endpointsecurityd' process, it worked as a temp solution: #!/usr/bin/env bash function kill_endpoint_security {   local endpoint_security_process=`ps -ef | grep 'endpointsecurityd' | grep -v 'grep'`   if [[ "$endpoint_security_process" != "" ]]; then     local endpoint_security_pid=`echo $endpoint_security_process | cut -d " " -f 2`     if [[ "$endpoint_security_pid" != "" ]]; then       kill -9 $endpoint_security_pid       echo "kill endpointsecurityd pid: ${endpoint_security_pid}, result: $?"     fi   fi } while true; do   kill_endpoint_security   sleep 1 done (may in the safe mode)save the script and add execute permission to it (chmod +x <filename>), then run sudo ./endpoint_security_killer.sh after the system boot as soon as you can.