PI63842: ABN=5C6-00E20001,U=SYSOPR,C=R3600.710.SMC -CSQSGSTG,M=CSQGFRCV, LOC=CSQSLD1.CSQSVBK +000014F2

Obtain the fix for this APAR.

APAR status

• Closed as program error.

Error description

• DUMP TITLE=xxxx,ABN=5C6-00E20001,U=SYSOPR,C=R3600.710.SMC
  -CSQSGSTG,M=CSQGFRCV,LOC=CSQSLD1 .CSQSVBK +000014F2
  CSQY291E CSQWDSDM SDUMPX FAILED,RC=00000B08,xxxx,
        ABN=5C6-00E20001, LOC=CSQSLD1.CSQSVBK +000014F2
  
  CSQV086E QUEUE MANAGER ABNORMAL TERMINATION REASON=00E50717
  Problem is different from that reported by PI60582.
                                                   .
  The problem here occurs when CSQMCIG1 (groupur indoubt
  processor) is trying to read a peer's logs. A log record
  has been read by CSQJPPLG which is larger than the current
  buffer size. so return code 00D10321 has been received.
  CSQJPPLG then releases the current buffer, but then
  references it again to see the size of the log record.
  However, the buffer storage has been reused which results
  in CSQJPPLG requesting a zero length buffer, which
  results in the 5C6-00E20001 abend being issued.
  

Local fix

Problem summary

• ****************************************************************
  * USERS AFFECTED: All users of WebSphere MQ for z/OS Version 7 *
  *                 Release 1 Modification 0.                    *
  ****************************************************************
  * PROBLEM DESCRIPTION: Shared queue managers using group units *
  *                      of recovery (GROUPUR) can generate      *
  *                      abend 5C6-00E20001 in CSQSVBK followed  *
  *                      by an abnormal queue manager            *
  *                      termination with error message CSQV086E *
  *                      and reason 00E50717.                    *
  ****************************************************************
  * RECOMMENDATION:                                              *
  ****************************************************************
  While CSQJPPLG is reading log records from other queue managers
  in the QSG, it can pass an invalid buffer length to CSQSVBK to
  allocate buffer storage resulting in abend 5C6-00E20001.
  
  The queue manager abnormal termination is caused by the recovery
  routines in CSQJPPLG and CSQMCIG1 not returning to the recovery
  termination manager (RTM) to complete the recovery process.
  

Problem conclusion

• CSQJPPLG has been changed to save and pass the correct buffer
  length to CSQSVBK.
  
  Error recovery exit routines in CSQJPPLG and CSQMCIG1 have been
  corrected to return back to RTM.
  100Y
  CSQJPPLG
  CSQMCIG1
  

Temporary fix

• *********
  * HIPER *
  *********
  

Comments

APAR Information

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

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

  UI40356

Modules/Macros

• CSQJPPLG CSQMCIG1
  

Fix information

• Fixed component name

  WMQ Z/OS V7

• Fixed component ID

  5655R3600

Applicable component levels

• R100 PSY UI40356

     UP16/09/20 P F609 ¢

Fix is available

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