BPXP018I THREAD <number>, IN PROCESS <number>, ENDED WITHOUT BEING UNDUBBED WITH COMPLETION CODE 04EC6000, AND REASON CODE 0000FF09.
BPXP023I THREAD <number>, IN PROCESS <number>, WAS <number> TERMINATED BY SIGNAL SIGKILL, SENT FROM THREAD
Based on the SIGKILL issued, this is a symptom of the user flushing the shell processes.
The specific error code is related to latch processing. This is not NetMaster code.
The 0020000F return code for this abend states -
One of the following:
System Action: The latch manager might not perform the requested operation.
Programmer Response: Check the application code to ensure that the correct latch token is passed to the caller of the Latch _Release service. If the problem persists, search problem reporting data bases for a fix for the problem. If no fix exists, contact the IBM Support Center.