PH48081: 5C6-00C9FEEE ABEND IN CSQIMGE5 WHILE GETTING A MESSAGE FROM QUEUE

Obtain the fix for this APAR.

APAR status

• Closed as program error.

Error description

• When trying to process an older message with PROPCTL(COMPAT),
  MQ will fail trying to process the the message because of a bad
  RFH2 header. The RFH2 in the message was invalid: the first
  couple of folders looked to be formatted correctly, but the
  last had a NameValueLength which was too big. This resulted in
  the RFH2 parsing code returning an unexpected return code
  (MQRC_PROPERTY_NOT_AVAILABLE) to the internal message getting
  layer, which resulted in the abend being issued.
  

Local fix

• You can remove the message by setting PROPCTL(V6COMPAT and than
  getting the message. This will allow you to remove the message
  but you must reset PROPCTL back to the original setting.
  

Problem summary

• ****************************************************************
  * USERS AFFECTED: All users of IBM MQ for z/OS Version 9       *
  *                 Release 1 Modification 0, Release 2          *
  *                 Modification 0 and Release 3 Modification 0. *
  ****************************************************************
  * PROBLEM DESCRIPTION: An abend and MQRC_UNEXPECTED_ERROR      *
  *                      can occur when getting malformed        *
  *                      messages with RFH2 headers put by an    *
  *                      older version of MQ.                    *
  *                                                              *
  *                      Additional validation in all in-service *
  *                      releases now prevents such a message    *
  *                      being put to a queue.                   *
  ****************************************************************
  When processing messages with an RFH2 header, a non-zero return
  code is used internally to indicate that the property has not
  yet been processed.
  
  In the problem scenario, this return code is not cleared and
  propagates to the calling method, eventually resulting in the
  queue manager abending.
  

Problem conclusion

• To resolve the problem behaviour and be consistent with other
  behaviour in this module, the return code is now correctly
  handled locally and cleared.
  

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:

  UI91707 UI91708 UI91709

Modules/Macros

• CMQZRFPA
  

Fix information

• Fixed component name

  IBM MQ Z/OS V9

• Fixed component ID

  5655MQ900

Applicable component levels

• R100 PSY UI91709

     UP23/07/03 P F306

• R200 PSY UI91708

     UP23/07/03 P F306

• R300 PSY UI91707

     UP23/07/03 P F306

Fix is available

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