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PI44889: WMQ Z/OS V800:ABN=0C4-00000011 IN CSQMDCKW

A fix is available

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APAR status

  • Closed as program error.

Error description

  • Customer complained 0C4 abend below occurred when they
    migrated to MQ v8 Compatibility Mode :
    
    CSQY291E CSQWDSDM SDUMPX FAILED,
    RC=00000B08,CSQ1,ABN=0C4-00000011,
    LOC=CSQMLPLM.CSQMDCKW+00000762
    
    In fact the issue occurred when processing a PCF
    MQCMD_INQUIRE_SUBSCRIPTION command
    with a MQCFT_STRING_FILTER structure (in customer's case for
    MQCA_TOPIC_STRING).
    
    
    
    Additional Symptom(s) Search Keyword(s):
    

Local fix

  • N/A
    

Problem summary

  • ****************************************************************
    * USERS AFFECTED: All users of WebSphere MQ for z/OS Version 8 *
    *                 Release 0 Modification 0.                    *
    ****************************************************************
    * PROBLEM DESCRIPTION: Abend 0C4 occurs in CSQMDCKW when       *
    *                      processing a PTF command containing     *
    *                      parameters represented internally by an *
    *                      mqcharv structure (for example          *
    *                      MQCA_TOPIC_STRING), or containing a     *
    *                      filter on such parameters.              *
    ****************************************************************
    * RECOMMENDATION:                                              *
    ****************************************************************
    While parsing affected PCF commands, CSQ9SCN3 detects parameters
    that need an mqcharv structure to be built, and adds this to the
    TCS. This mqcharv contains a pointer to the string token that
    was parsed from the input PCF message. However, the storage
    containing the token is freed before the TCS is passed to the
    appropriate command processor routine, leading to the reported
    abend 0C4 when the value is referenced.
    

Problem conclusion

  • CSQ9SCN3 is changed to allocate a new area of storage that will
    not be freed until the command completes, and to reference this
    in the mqcharv structures used internally.
    000Y
    CSQ9SCN3
    

Temporary fix

Comments

APAR Information

  • APAR number

    PI44889

  • Reported component name

    WMQ Z/OS 8

  • Reported component ID

    5655W9700

  • Reported release

    000

  • Status

    CLOSED PER

  • PE

    NoPE

  • HIPER

    NoHIPER

  • Special Attention

    NoSpecatt / Xsystem

  • Submitted date

    2015-07-13

  • Closed date

    2015-08-26

  • Last modified date

    2015-11-03

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

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

    UI30533

Modules/Macros

  • CSQ9SCN3
    

Fix information

  • Fixed component name

    WMQ Z/OS 8

  • Fixed component ID

    5655W9700

Applicable component levels

  • R000 PSY UI30533

       UP15/10/07 P F510

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.

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Document Information

Modified date:
03 November 2015