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PI68182: WMQ ABEND 5C6 00E50002 CSQVUNLX,M=CSQVLFRR,LOC=CSQMLPLM.CSQMMTPRCHIN CHINIT ABENDS5C6 S5C6

A fix is available

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APAR status

  • Closed as program error.

Error description

  • CHIN CHINIT abends with ABEND 5C6 00E50002
    ABN=5C6-00E50002,LOC=CSQMLPLM.CSQMMTPR+000023CE
    .
    DUMP:
    ABN=5C6-00E50002,U=MQPDCHIN,C=W9700.800.ASMC-CSQVUNLX,M=CSQVLFRR
    ,LOC=CSQMLPLM.CSQMMTPR+00002386
    .
    The MTME has been released by CSQMMTIN while CSQMMTPR
    (mark_msg_token processing) is waiting to obtain a latch on it.
    

Local fix

Problem summary

  • ****************************************************************
    * USERS AFFECTED:                                              *
    * All users of IBM MQ for z/OS Version 9 Release 0             *
    * Modification 0.                                              *
    ****************************************************************
    * PROBLEM DESCRIPTION:                                         *
    * Application browsing messages from a queue using             *
    * MQGMO_MARK_BROWSE_CO_OP or MQGMO_MARK_BROWSE_HANDLE can      *
    * generate abend 5C6-00E50002 in CSQMMTPR.                     *
    ****************************************************************
    * RECOMMENDATION:                                              *
    * N/A                                                          *
    ****************************************************************
    The access serialization of browse message marks is incorrect
    and it sometimes allows multiple threads to perform simultaneous
    updates of the same mark resulting in 5C6-00E50002 abend.
    

Problem conclusion

  • The serialization access to the MTME has been corrected
    preventing simultaneous updates to the same MTME.
    

Temporary fix

Comments

APAR Information

  • APAR number

    PI68182

  • Reported component name

    MQ Z/OS V9

  • Reported component ID

    5655MQ900

  • Reported release

    000

  • Status

    CLOSED PER

  • PE

    NoPE

  • HIPER

    NoHIPER

  • Special Attention

    NoSpecatt / Xsystem

  • Submitted date

    2016-08-26

  • Closed date

    2016-09-12

  • Last modified date

    2016-11-02

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

    PI60685

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

    UI40758

Modules/Macros

  • CSQEMTIN CSQMMTIN CSQMMTPR
    

Fix information

  • Fixed component name

    MQ Z/OS V9

  • Fixed component ID

    5655MQ900

Applicable component levels

  • R000 PSY UI40758

       UP16/10/14 P F610

Fix is available

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Document Information

Modified date:
02 November 2016