To exit either adb(1M) or kadb(1M), use $q.
kadb: $qType `go' to resume ok
On SPARC machines, kadb(1M) can be resumed by typing go at the ok prompt. On x86 machines, kadb(1M) cannot be resumed.
No other commands can be performed from the PROM if the system is to be resumed. PROM commands other than go may change system state that the Solaris 7 operating environment depends upon.
Staying at the kadb(1M) prompt for too long may cause the system to lose track of the time of day, and cause network connections to time out.