BC5

Explanation
The system terminated an address space. Code
Explanation
01
The system attempted to rebuild its work unit queues and encountered
an address space whose queues it could not rebuild.

System action
The system ends the address space.

System programmer response
  If the source of the problem cannot
be determined, search problem reporting data bases for a fix for the
problem. If no fix exists, contact the IBM® support
center.

Source
Supervisor Control