COMMTASK diagnosis methods

COMMTASK provides several diagnostic functions to view the following information in dumps:
  • Messages in the wait state message area.
  • Branch entry messages on the delayed message queue.
  • Message suppressed during nucleus initialization program (NIP) processing.
You can view messages in the wait state message area with the following IPCS functions:
  • The STATUS WORKSHEET subcommand or option 2.3 (WORKSHEET) of the IPCS dialog gives central processor information. One section of this report provides the formatted wait state message area. The following is an example of formatted wait state message area for an X'A2B' wait state as it appears in the IPCS report:
     Wait State Message Issued at 08:40:10 on Day 255 of 1989:
      IGF912W EXTENDED STORAGE FAILURE, RE-IPL THE SYSTEM
  • The CBFORMAT WSMA subcommand formats the wait state message area and produces a report similar to the preceding example.
You can view branch entry messages on the delayed message queue with another IPCS function. The VERBEXIT MTRACE subcommand or the MTRACE selection in option 2.6 (COMPONENT) of the IPCS dialog produces a report that contains the following sections:
         ***NIP MESSAGES ON THE DELAYED ISSUE QUEUE***

   WQE ADDRESS   DATE     TIME      MESSAGE TEXT

      01FE4560   89187   08:40:10   THIS IS THE 1ST NIP TIME SVC 35
      01FE5060   89187   08:42:10   THIS IS THE 2ND NIP TIME SVC 35
      01FE6060   89187   08:43:10   THIS IS THE 3RD NIP TIME SVC 35
      01FE7060   89187   09:44:10   THIS IS CONTROL LINE OF
                                    MULTI-LINE NIP TIME SVC 35
                                    THIS IS 1ST DATA LINE
                                    THIS IS 2ND DATA LINE
                                    THIS IS THE DATA END LINE
      01FEA060   89187   10:48:10   THIS IS A NIP TIME ACTION MESSAGE

       ***BRANCH ENTRY MESSAGES ON THE DELAYED ISSUE QUEUE***

   WQE ADDRESS   DATE     TIME     MESSAGE TEXT

      01FE8560   89187   09:50:10  THIS IS THE 1ST BE WTO
      01FE9060   89187   09:52:10  THIS IS THE 2ND BE WTO
      01FEA060   89187   09:53:10  THIS IS THE 3RD BE WTO
      01FEB060   89187   09:54:10  THIS IS CONTROL LINE OF
                                   MULTI-LINE BE WTO
                                   THIS IS 1ST DATA LINE
                                   THIS IS 2ND DATA LINE
                                   THIS IS THE DATA END LINE
      01FEA060   89187   09:58:10  THIS IS A BE WTO ACTION MESSAGE

Messages that are suppressed during NIP processing will be found either on the delayed message queue, as shown in the MTRACE output example, or in the system log.