Loop or no response problem procedures

Use the LOOP keyword procedure for any of the following conditions:

A program seems to be doing nothing or is doing something repetitively.
A job does not reach completion.
On z/OS, the system abend code is 322, 522, or 722, which means that your program has timed out or exceeded its output limits.

If the program appears to be in a WAIT state, follow your local procedures for resolution.