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PI70890: MQ V9: 0C4-00000004 AFTER SET CHLAUTH ACTION(REMOVE) COMMAND

A fix is available

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APAR status

  • Closed as program error.

Error description

  • After using SET CHLAUTH...ACTION(REMOVE) CMDSCOPE(*) command
    the following abend occured:
    ABN=0C4-00000004,U=STCMQS  ,C=MQ900.900.MMC -CSQMSCA
        ,M=CSQGFRCV,LOC =CSQTOPLM.CMQXRSCF+00011C7A
    
    Afterwards command server was unresponsive.
    

Local fix

  • n/a
    

Problem summary

  • ****************************************************************
    * USERS AFFECTED:                                              *
    * All users of IBM MQ for z/OS Version 9 Release 0             *
    * Modification 0.                                              *
    ****************************************************************
    * PROBLEM DESCRIPTION:                                         *
    * Incorrect configuration event messages are written, and/or   *
    * abend 0C4 occurs when issuing SET CHLAUTH(x) TYPE(BLOCKUSER) *
    * to create or delete chlauth rules when the USERLIST          *
    * parameter contains multiple userids.                         *
    ****************************************************************
    * RECOMMENDATION:                                              *
    * None                                                         *
    ****************************************************************
    When issuing the SET CHLAUTH(x) TYPE(BLOCKUSER) command,
    rsiAddUserBlockList and rsiRemoveUserBlockList are called to
    add/remove control blocks for each specified userid. If
    configuration events are enabled, the code responsible for
    generating event messages recording the commands does not
    correctly account for multiple users being specified.
    In the case of rsiAddUserBlockList this results in configuration
    event messages with Reason=MQRC_CONFIG_CHANGE_OBJECT with
    incorrect values in the MQCACH_MCA_USER_ID_LIST parameter being
    written when a new rule is created, instead of a message with
    Reason=MQRC_CONFIG_CREATE_OBJECT.
    In the case of rsiRemoveUserBlockList, an attempt is made to
    write event messages with Reason=MQRC_CONFIG_CHANGE_OBJECT
    instead of the expected event message with
    Reason=MQRC_CONFIG_DELETE_OBJECT, however an invalid memory
    reference results in the command abending S0C4.
    

Problem conclusion

  • rsiAddUserBlockList and rsiRemoveUserBLockList are changed to
    correctly generate event messages whene creating/deleting rules
    with multiple users specified in the USERLIST paramater.
    

Temporary fix

Comments

APAR Information

  • APAR number

    PI70890

  • 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

    2016-10-20

  • Closed date

    2017-01-30

  • Last modified date

    2017-03-02

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

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

    UI44304

Modules/Macros

  • CMQXRSCF
    

Fix information

  • Fixed component name

    MQ Z/OS V9

  • Fixed component ID

    5655MQ900

Applicable component levels

  • R000 PSY UI44304

       UP17/02/08 P F702

Fix is available

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Document Information

Modified date:
02 March 2017