PH39450: ABN=5C6 - 00D40017,LOC=CSQMLPLM. CSQMOPNI +000025B8 AND ABN=5C6 - 00C90C00,LOC=CSQILPLM. CSQIDGET +00000472

Obtain the fix for this APAR.

APAR status

• Closed as program error.

Error description

• After RRS was canceled with SETRRS CANCEL ,  the following
  abends were seen:
  
  ABN=5C6-00D40017,LOC=CSQMLPLM.CSQMOPNI+000025B8
  
  ABN=5C6-00C90C00,LOC=CSQILPLM.CSQIDGET+00000472
  
  The unexpected abends occur during open processing for a model
  queue, when a shared dynamic queue is successfully created, but
  fails to be opened due to DB2 or, as in this case,  RRS being
  unavailable. CSQMOPNI attempts to delete the shared dynamic
  queue, but this requires DB2 updates and consequently fails,
  however CSQMOPNI does not expect this and abends 5C6-00D40017.
  The recovery processing for this abend attempts to harden the
  logically deleted flag, but in doing so references the now
  freed handle, leading to the subsequent 5C6-00C90C00 .
  

Local fix

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: Abend 5C6-00D40017 in CSQMOPNI,         *
  *                      followed by 5C6-00C90C00 in CSQIDGET    *
  *                      occurs when an unexpected return code   *
  *                      was received by CSQMOPNI when DB2 was   *
  *                      unavailable.                            *
  ****************************************************************
  CSQMOPNI received an unexpected return code when DB2 was
  unavailable, therefore a 5C6-00D40017 abend occurred. Recovery
  also referenced the object handle after it had been freed,
  passing an invalid value into a call CSQMGETO causing another
  unexpected 5C6-00C90C00 abend.
  

Problem conclusion

• The code has been changed to return a valid return code when
  DB2 is unavailable, and also to avoid referencing the handle
  after it has been freed.
  

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:

  UI81052 UI81053 UI81629

Modules/Macros

• CSQMOPNI
  

Fix information

• Fixed component name

  IBM MQ Z/OS V9

• Fixed component ID

  5655MQ900

Applicable component levels

• R100 PSY UI81053

     UP22/07/01 P F206

• R200 PSY UI81052

     UP22/07/01 P F206

• R300 PSY UI81629

     UP22/08/03 P F208

Fix is available

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