Cpurc on sources disables notes for a few processes including listen(8) – to save them from being killed when system runs out of memory. This, however, has a side effect: spawned services like sshserve inherit the bits from listen, thus missing notes about rc exits and waiting forever, causing the processes to accumulate.
To stop them to accumulate immediately, enable notes for listen by running as hostowner: kill listen | awk -F'>' '{print "chmod u+w", $2}' | rc -v Then remove listen from /bin/cpurc:/^dontkill line. - Yaroslav