PH63065: ABN=5C6-00A30052,U=XXXXXXXX,C=MQ900.920.SMC -CSQSHFMN,M=CSQGFRCV,LOC=CSQSLD1 .CSQSHFMN+00000A6C

Obtain the fix for this APAR.

APAR status

• Closed as program error.

Error description

• The queue manager ended abnormally with the following abends:
  
  DUMP TITLE=XXXX,ABN=5C6-00A30052,U=XXXXXXXX,C=MQ900.920.SMC
  -CSQSHFMN,M=CSQGFRCV,LOC=CSQSLD1 .CSQSHFMN+00000A6C
  *CSQV086E XXXX    QUEUE MANAGER ABNORMAL TERMINATION
  REASON=00F30420
  
  The problem is a timing window where an application which had a
  topic open is cancelled during MQCLOSE processing. This timing
  window leaves the handle in an inconsistent state. When the
  task later goes through EOT, close all handles processing again
  tries to close the handle, but this abends S5C6-00A30052 in
  CSQSHFMN due to attempting to a free a null pointer obtained
  from the handle MHND. Since the abend occurred during allied
  EOT, the QMGR terminates.
  

Local fix

Problem summary

• ****************************************************************
  * USERS AFFECTED: All users of IBM MQ for z/OS Version 9       *
  *                 Release 2 Modification 0 and                 *
  *                 Release 3 Modification 0.                    *
  ****************************************************************
  * PROBLEM DESCRIPTION: The Queue Manager abends with           *
  *                      5C6-00A30052 and proceeds to terminate. *
  ****************************************************************
  During MQCLOSE processing to a topic the connected application
  abended and MQ made an attempt to incorrectly free a null
  pointer. This caused the Queue Manager to abend with
  5C6-00A30052 and since the abend occurred during allied EOT,
  the QMGR terminated.
  

Problem conclusion

• The code has been corrected to not attempt to free a null
  pointer preventing the 5C6-00A30052 abend and subsequent Queue
  Manager termination.
  

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:

  UO02245 UO02246

Modules/Macros

• CSQMCLS2
  

Fix information

• Fixed component name

  IBM MQ Z/OS V9

• Fixed component ID

  5655MQ900

Applicable component levels

• R200 PSY UO02246

     UP25/03/08 P F503 ¢

• R300 PSY UO02245

     UP25/03/08 P F503 ¢

Fix is available

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