07A

Explanation
An unrecoverable error occurred during region control
task (RCT) processing such as: A system interruption request block (SIRB) failure
A swap-out processing error

System action
The system gives RCT recovery control. To avoid
an address space interlock, RCT abends the address space without cleaning
up address space-related resources. The system may or may not write
a logrec data set error record.

System programmer response
Search problem reporting data bases
for a fix for the problem. If no fix exists, report the problem to
the IBM® Support Center. Provide
the logrec data set error records if any were written.

Source
Region control task (RCT)