Software problem data for QTETHRD has been logged during debug session in RDI

A RPG developer in our company had problems to debug an interactive RPG program. He wants to hold the program with the hold button while the program is waiting on user input, but it does not work and after some time the debugger in RDI (Rational Developer for IBM i) stops and the program on the IBM i runs without stopping at breakpoints.

The QSYSOPR message queue shows an error message CPI93B9 "Software problem data for QTETHRD has been logged. Refer to help text for additional information." at the same time the debugger in RDI crashes. In the corresponding problem entry there is a Symptom string "5770 SP/QTETHRD MOD/QteRetriev MSGMCH1004RC117" logged. We could not find any helpful information in the joblogs or in the QHST log.

After some investigation we found out, that the root cause of this problem is that the developer had not the special authority "*JOBCTL" After adding this special authority to the userprofile with "CHGUSRPRF USRPRF(USERNAME) SPCAUT(*JOBCTL)" our RPG developer is a happy camper again.