PH65917: 0C1/AKEA IN DFHMQTRU AFTER CKQC STOP COMMAND

Obtain the fix for this APAR.

APAR status

• Closed as unreproducible.

Error description

• The following messages are received shortly after CKQC STOP
  command has been issued:
  
  +DFHAP0707 CICSDBDC An abend (code 0C1/AKEA) has occurred in
  task related user exit program DFHMQTRU.
  +DFHAP0001 CICSDBDC An abend (code 0C1/AKEA) has occurred at
  offset X'FFFFFFFF' in module DFHMQTRU.
  
  DFHMQLOC at X'140' contains Msg handle create routine address
  (CSQBCRMH) and at X'144' Msg property API routine address
  (CSQBPAPI). At dump time both pointers are zeroed, and MQCONN
  status is in quiescing status. This causes S0C1 abend when task
  related user exit program DFHMQTRU at offset x'7FA8' issues a
  call to one of these programs.
  

Local fix

Problem summary

• ****************************************************************
  * USERS AFFECTED: All CICS Users.                              *
  ****************************************************************
  * PROBLEM DESCRIPTION: S0C1 abend occurs when quiescing MQ     *
  *                      whilst a CICS-MQ application using      *
  *                      MQCRTMH is in an MQGET with wait.       *
  ****************************************************************
  When an MQ QMGR is quiesced and a CICS-MQ program is waiting in
  an MQGET, CICS receives an OK response to its internal wait
  (DFHDSSRM WAIT_MVS). The success path is taken, leading to an
  0C1 abend as CSQBCRMH is incorrectly driven to clean up the
  message handles created by MQCRTHM.
  

Problem conclusion

Temporary fix

Comments

• CICS has been updated to correctly handle the cleanup of the
  MQ Connection and message handles when the MQConnection is
  terminating. This is fixed in higher releases by APAR PH63586.
  

APAR Information

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

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

  UO06772

Modules/Macros

• DFHMQTRU DFHMQXCR DFJ@H531 DFJ@H532 DFJ@H533 DFJ@H583
  

Fix information

• Fixed component name

  CICS TS Z/OS V5

• Fixed component ID

  5655Y0400

Applicable component levels

• R300 PSY UO06772

     UP26/02/26 P F602

Fix is available

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