PM73676: WEBSPHERE MQ V710, QMGR ABENDS WITH 0C4, ABEND REASON CODE: 00000011

Obtain the fix for this APAR.

APAR status

• Closed as program error.

Error description

• The 0C4 in CSQVSRRX can occur during shutdown when a service
  task (in this case the trace task, TRTASK00) is not ended
  during normal shutdown processing. This is detected by CSQVASTM
  during local memory terminate processing, so CSQVDST0 is
  invoked to ABTERM the service task with 6C6 and reason code
  00E50070. CSQVSRRX is invoked under the service task
  TCB to process the abend, and tries to access the RMFT.
  However, the RMFT has been released at this stage in shutdown
  processing, so the 0C4 occurs.
  ADDITIONAL SYMPTOM : ABEND5C6 00E501A1 ABEND0C4 ABENDS0C4
  

Local fix

Problem summary

• ****************************************************************
  * USERS AFFECTED: All users of WebSphere MQ for z/OS version 7 *
  *                 Release 1 Modification 0.                    *
  ****************************************************************
  * PROBLEM DESCRIPTION: The QMGR issues an 0C4 abend in         *
  *                      CSQVSRRX during shutdown. Other         *
  *                      symptoms that can occur include         *
  *                      6C6-00E50070 abends recorded in logrec  *
  *                      and a S0D5 abend with reason code 21.   *
  ****************************************************************
  * RECOMMENDATION:                                              *
  ****************************************************************
  The 0C4 in CSQVSRRX can occur during shutdown when a service
  task (in this case the trace task, TRTASK00) is not ended
  during normal shutdown processing. This is detected by CSQVASTM
  during local memory terminate processing, so CSQVDST0 is
  invoked to ABTERM the service task with S6C6 and reason code
  00E50070.
  CSQVSRRX is invoked under the service task TCB to process the
  abend, and tries to access the RMFT. However, the RMFT has been
  released by this stage in shutdown processing, so the 0C4
  occurs.
  The root cause of this problem is that the TRTASK00 is not
  being ended correctly by CSQWVZCT.
  

Problem conclusion

• The code was changed to correctly end the TRTASK00 task in
  CSQWVZCT and to suppress the 6C6-00E50070 logrec entries.
  100Y
  CSQVASTM
  CSQWVZIT
  

Temporary fix

Comments

APAR Information

• APAR is sysrouted FROM one or more of the following:

• APAR is sysrouted TO one or more of the following:

  UK90733

Modules/Macros

• CSQVASTM CSQWVZIT
  

Fix information

• Fixed component name

  WMQ Z/OS V7

• Fixed component ID

  5655R3600

Applicable component levels

• R100 PSY UK90733

     UP13/02/05 P F302

Fix is available

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