EC4

Explanation
NetView® issues
abend EC4 using CALLRTM in order to terminate NetView tasks in error situations.  NetView uses abend EC4 during
the NetView commands: STOP FORCE
  To cause a NetView task
that will not respond to other signals to abend and recover or terminate.

CLOSE IMMED
  To cause a NetView task
to shut down after approximately 1 minute if the task is still active
after the CLOSE IMMED is processed.

System action
Abend EC4 means that NetView decided the only way to stop the
task was to intervene using a system abend.

System programmer response
If you are using the STOP FORCE command
or the CLOSE IMMED command to recover from errors, notify your system
programmer to determine whether customer or IBM® programming is failing. The NetView product provides the STOP FORCE and
CLOSE IMMED commands as a means of recovering from user or IBM product errors until the cause
can be remedied.  Using STOP FORCE or CLOSE IMMED as a normal operations
practice is otherwise a misuse of the product.
If you observe
a high number of abend EC4 reports: Advise your operators that excessive use of error recovery commands
can cause storage loss and affect system performance. Ask them to
use the non-abend STOP TASK and CLOSE STOP before resorting to STOP
FORCE or CLOSE IMMED.
If tasks will not stop when using STOP TASK, or NetView does not close down when using CLOSE
STOP, call NetView Service
for advise on dumps or other problem determination needed to find
and fix either customer or IBM programming
defects.