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IC67339: VB APPLICATION CRASHES WHEN GETTING A MESSAGE WITH CONVERT OPTION.

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APAR status

  • Closed as program error.

Error description

  • VB applications using the ActiveX interface crash when
    attempting to get a message with the convert get message option.
    
    A trace of the VB 6 application shows a successful MQGET call
    returned with completion code zero and reason code zero.
    However, tracing stops abruptly upon making another MQGET call.
    
    0000785E 14:11:46.080701   4016.1           :       ---}
    zstMQGET
    (rc=OK)
    0000785F 14:11:46.080708   4016.1           :       --}
    MQGET
    (rc=OK)
    00007AB2 14:11:48.109133   4016.1           :       --{
    zstMQGET
    

Local fix

Problem summary

  • ****************************************************************
    USERS AFFECTED:
    All Windows users of the ActiveX interface issuing MQGET calls
    with MQGMO_CONVERT on 7.0.1.0 or higher
    
    Platforms affected:
    Windows
    
    ****************************************************************
    PROBLEM SUMMARY:
    IC60879 added support in 7.0.1.0 to dynamically load an
    entry point from amqzst.dll, when performing an MQGET with
    convert, and then call it. Unfortunately the function signature
    was incorrectly specified, meaning that when the call was made
    the parameters did not align up. This resulted in a value being
    passed through actually being used as a pointer argument for a
    result, which causes a trap when that pointer is written to.
    

Problem conclusion

  • The parameters passed to the function being called from
    AMQZST.DLL have been corrected, ensuring the call completes
    successfully and the trap does not occur.
    
    | MDVREGR 7.0-WS-MQ-Windows-RP0001   |
    | MDVREGR 7.0.1-WS-MQ-Windows-FP0001 |
    | MDVREGR 7.0.1-WS-MQ-Windows-FP0002 |
    
    ---------------------------------------------------------------
    The fix is targeted for delivery in the following PTFs:
    
                       v7.0
    Platform           Fix Pack 7.0.1.3
    --------           --------------------
    Windows            U200320
    
    The latest available maintenance can be obtained from
    'WebSphere MQ Recommended Fixes'
    http://www-1.ibm.com/support/docview.wss?rs=171&uid=swg27006037
    
    If the maintenance level is not yet available, information on
    its planned availability can be found in 'WebSphere MQ
    Planned Maintenance Release Dates'
    http://www-1.ibm.com/support/docview.wss?rs=171&uid=swg27006309
    ---------------------------------------------------------------
    

Temporary fix

Comments

APAR Information

  • APAR number

    IC67339

  • Reported component name

    WMQ WINDOWS V7

  • Reported component ID

    5724H7220

  • Reported release

    701

  • Status

    CLOSED PER

  • PE

    NoPE

  • HIPER

    NoHIPER

  • Special Attention

    NoSpecatt

  • Submitted date

    2010-03-19

  • Closed date

    2010-03-29

  • Last modified date

    2011-02-21

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

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

Fix information

  • Fixed component name

    WMQ WINDOWS V7

  • Fixed component ID

    5724H7220

Applicable component levels

  • R701 PSY

       UP

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Document Information

Modified date:
21 February 2011