You can identify a wait or loop condition by means of one of the
following conditions:
- Suspended activity while waiting for some condition to be satisfied
- Endless instruction loop
- Repetition of messages
- Repetition of a sequence of ISMF panels
- No system response; for example, an ISMF panel remains on the
terminal screen indefinitely after the operator has taken action that
should cause it to change
Because wait and loop failures are often hard to differentiate,
this section documents both keywords.