The Electronic Prognostics (EP) software, which analyzes telemetry data from a variety of physical sensors, creates a defunct process every 24 hours. As a result, performance issues can build up over time.
Workaround: Choose one of the following workarounds:
Identify the process IDs (pid) of the defunct processes. Then, use the preap command to force the defunct processes to quit. Defunct ("zombie") processes are marked with a "Z".
# ps -ecl | grep "Z"
# preap defunct-pid
If there are multiple zombie processes, use the following command to kill all processes at once:
# ps -A | grep defunct | awk '{print $1}' | xargs preap
Restart the system/electronic-prognostics service.
# svcadm restart electronic-prognostics