Caller not authorized to use getpsent

Message

ck_process_owner <userid> <groupid> <uid> <gid> 8 8 4
mm/dd/yy   yy.ddd h.mm.ss <jobname> <source> <sysname> <cpu>
Failed - Caller not authorized to use this callable service
Real Uid : 0 Effective UID: 0 
Saved UID : 0
Target PID : 0
Signal code : Signal n/a for type 3 (getpsent) requests
Signal code : 0

Explanation

The ISPF Client Gateway checks the active processes to see if there is already a server active from a previous invocation of the service. To do so, it analyses the output of the getpsent callable service. z/OS® UNIX will try to collect information for every active process (including the ones the requester has no privileges for) and return only those for which the requestor is authorized.

So the error message (which is only visible in trace-like security reports) is related to how z/OS UNIX works. It is NOT hindering normal operation.

Additional information

For information, see http://publibz.boulder.ibm.com/cgi-bin/bookmgr_OS390/BOOKS/BPXZB190/2.248?SHELF=BPXZSH91&DT=20080521092140 (z/OS 1.10).