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PM86171: WMQ ABEND 5C6-00C51139 M=CSQGFRCV,LOC=CSQELPLM.CSQEMTIN+00001392

A fix is available

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APAR status

  • Closed as program error.

Error description

  • A queue manager in a Queue Sharing Group (QSG) abended with
    IEA794I SVC DUMP HAS CAPTURED:
            DUMPID=001 REQUESTED BY JOB (CSQ1MSTR)
            TITLE=CSQ1,ABN=5C6-00C51139,S=0000080A,C=R3600.710.CFM
            -CSQEMTIN,M=CSQGFRCV,LOC=CSQELPLM.CSQEMTIN+00001392
    S05C6 S5C6 00C51139 Coupling Facility codes An internal error
    has occurred.
    

Local fix

Problem summary

  • ****************************************************************
    * USERS AFFECTED: All users of WebSphere MQ for z/OS Version 7 *
    *                 Release 1 Modification 0.                    *
    ****************************************************************
    * PROBLEM DESCRIPTION: Abend 5C6 00C51139,                     *
    *                      CSQE_unexpected_XES_Err39, issued by    *
    *                      CSQEMTIN.                               *
    ****************************************************************
    * RECOMMENDATION:                                              *
    ****************************************************************
    During checkpoint processing, a CF structure for a queue manager
    in a QSG is disconnected when no shared queues in the structure
    have been accessed for the last 10 minutes.  After issuing
    IXLDISC to disconnect the queue manager from the structure,
    there is a small timing window before the queue manager marks
    the structure as disconnected in the structure control block
    (STRB).  If CSQEMTIN is checking for timed-out co-op marks on a
    shared queue in this structure and performs a IXLLSTM READ_LIST
    during this window, this will result in an abend 5C6-00C51139.
    This is because the code is not handling the reason code
    returned from the CF when the STRB is not marked as
    disconnected.
    

Problem conclusion

  • The code has been changed so that it will not check the STRB
    state following the IXLLSTM READ_LIST in CSQEMTIN.
    100Y
    CSQEMTIN
    

Temporary fix

Comments

APAR Information

  • APAR number

    PM86171

  • Reported component name

    WMQ Z/OS V7

  • Reported component ID

    5655R3600

  • Reported release

    100

  • Status

    CLOSED PER

  • PE

    NoPE

  • HIPER

    NoHIPER

  • Special Attention

    NoSpecatt / Xsystem

  • Submitted date

    2013-04-03

  • Closed date

    2013-07-15

  • Last modified date

    2013-09-03

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

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

    UK95821

Modules/Macros

  • CSQEMTIN
    

Fix information

  • Fixed component name

    WMQ Z/OS V7

  • Fixed component ID

    5655R3600

Applicable component levels

  • R100 PSY UK95821

       UP13/08/23 P F308

Fix is available

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Document Information

Modified date:
03 September 2013