PM72207: DUMP TITLE=CSQB,ABN=0C4-00000010,U=CICSPS ,C=R3600.710.MMC -CS QMMTPR,M=CSQGFRCV,LOC=CSQMLPLM.CSQMMTPR+000018F0

Obtain the fix for this APAR.

APAR status

• Closed as program error.

Error description

• The customer was running WMQ V7.1 and CICS 4.2 and they received
  The following messages in CICS and then an 0C4 dump:
  .
  DFHMQ0480 E CICS3ABC MQCC=2 MQRC=2195 QRPL at
               X'311C7258' FRB at X'30DEAD00'.
  DFHDU0201 CICS3ABC ABOUT TO TAKE SDUMP. DUMPCODE: MQ0480,
            DUMPID: 1/0446
  DFHDU0208 CICS3ABC SDUMP BUSY - CICS WILL RETRY IN FIVE
             SECONDS.
  ...
  DFHMQ0480 E CICS3ABC MQCC=2 MQRC=2195 QRPL at
              X'311C7258' FRB at X'30DEAD00'.
  DFHZC5966 I CICS3ABC INSTALL started for TERMINAL (ED9F)
  DFHMQ0710 E CICS3ABC CKBR 41859 MQCC=2 MQRC=2195 returned for
  DFHAC2236 CICS3ABC Transaction CKBR abend AMQI in program
            DFHMQBR0 term ????. Updates to local recoverable
            resources will be backed out.
  .
  IEA794I SVC DUMP HAS CAPTURED:
  DUMPID=089 REQUESTED BY JOB (CICS3ABC)
  DUMP TITLE=CSQB,ABN=0C4-00000010,U=CICSPS  ,C=R3600.710.MMC -CS
    QMMTPR,M=CSQGFRCV,LOC=CSQMLPLM.CSQMMTPR+000018F0
  .
  The change team has reviewed the dump. They can see that the
  0C4 is occuring as the CKBR thread is in CSQMMTPR trying to run
  down an MTME chain at the same time as MTME's on the chain are
  being removed by CSQMMTIN during periodic referesh processing
  (i.e. same as defect 155564).
  
  Additional Search Words:  ABEND0C4 S0C4
  

Local fix

• A ++APAR is available from the support center.
  

Problem summary

• ****************************************************************
  * USERS AFFECTED: All users of WebSphere MQ Version 7          *
  *                 Release 1 Modification 0.                    *
  ****************************************************************
  * PROBLEM DESCRIPTION: Applications browsing messages using    *
  *                      cooperative marks and message tokens    *
  *                      can get abend 0C4-00000010 in CSQMMTPR  *
  *                      The CICS bridge is an example of such   *
  *                      applications.                           *
  ****************************************************************
  * RECOMMENDATION:                                              *
  ****************************************************************
  Incorrect serialization technique is used between the MQGET
  browse with coop_mark and the coop_mark expire routine resulting
  in the OC4 abend.
  

Problem conclusion

• Serialization has been corrected avoiding the reported abend.
  100Y
  CSQEMTIN
  CSQMMTIN
  CSQMMTPR
  

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:

  UK83639

Modules/Macros

• CSQEMTIN CSQMMTIN CSQMMTPR
  

Fix information

• Fixed component name

  WMQ Z/OS V7

• Fixed component ID

  5655R3600

Applicable component levels

• R100 PSY UK83639

     UP13/01/16 P F301

Fix is available

• Select the PTF appropriate for your component level. You will be required to sign in. Distribution on physical media is not available in all countries.