PK65735: ABEND 0C4 S0C4 IN DFHMQTRU WHEN ATTEMPTING TO RUN THE CICS BRIDGE TRANSACTION

Obtain the fix for this APAR.

APAR status

• Closed as program error.

Error description

• ABEND 0C4 S0C4 in DFHMQTRU when attempting to run the CICS
  Bridge transaction
  

Local fix

Problem summary

• ****************************************************************
  * USERS AFFECTED: All.                                         *
  ****************************************************************
  * PROBLEM DESCRIPTION: 0C4 in DFHMQTRU after an MQGET with     *
  *                      MQGMO_CONVERT which requires a data     *
  *                      conversion exit, e.g. DFHMQDCI.         *
  ****************************************************************
  * RECOMMENDATION:                                              *
  ****************************************************************
  DFHMQTRU invokes CSQAVICD to perform the data-conversion.
  During this process, a data-conversion exit can be executed,
  the CICS sample is called DFHMQDCI. This code issues a call
  to DFHMQITR, which is an ENTRY point in DFHMQXTB, the CICS
  MQ internal stub. This code uses a DFHMQXTM macro to generate
  code to issue an INQUIRE function to the MQ TRU. This results in
  DFHMQTRU being invoked recursively. However, DFHMQTRU cannot
  handle being invoked recursively as its working storage is
  always taken from CLOT. This results in the S0C4 when control
  returns back to DFHMQTRU after the data-conversion has
  been performed, as its working storage has been changed with
  processing the DFHMQITR call.
  
  Keywords: MSGDFHAP0001 AP0001 DFHAP0001 ABENDS0C4 S0C4 0C4
  

Problem conclusion

• The fix changes DFHMQTRS, the prolog macro for DFHMQTRU. The
  amended code will now check for INQUIRE TRUE calls and process
  the call within the prolog code completely, returning the CLOA
  address, setting the completion and reason codes then returning
  to the caller.  This function was originally embodied in
  DFHMQTRU.
  

Temporary fix

• FIX AVAILABLE BY PTF ONLY
  

Comments

APAR Information

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

  PK24285

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

  UK36924

Modules/Macros

•    DFHMQTRS DFHMQTRU
  

Fix information

• Fixed component name

  CICSTS V3 Z/OS

• Fixed component ID

  5655M1500

Applicable component levels

• R500 PSY UK36924

     UP08/06/05 P F806

Fix is available

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