If the Qname CTLIMSTR is not released in a short time a it should, check the status of User or Batch in cause and take the appropriate action to allow the User or Batch to complete the current action.
If the User or Batch doesn't answer, Take a Dump and cancel it if possible and analyze the root cause of abend.
If the root cause is a TSO User, here are some possible solutions:
- Use TSO PROFILE NOWTPMSG and/or
- Configure TSO so that it loses screen messages instead of waiting for screen buffers.
- Contact IBM for a solution with TSO
- Lower REGION size
But if the problem occurs again, get a SVC dump from the hung TSO user or Batch.