IBM Support

IY79457: WMQ V6.0 client channel fails when a MQCSP structure is specified on the MQCNO passed into a MQCONNX call.

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APAR status

  • Closed as program error.

Error description

  • A MQCSP (Connection security parameters structure) can be
    specified on a client MQCONNX call using the
    SecurityParmsOffset or SecurityParmsPtr fields in the MQCNO
    (Connection options structure) structure.
    If an MQCSP is specified on the MQCNO of a client MQCONNX call,
    then the client may fail to connect to the queue manager.
    This occurs when the client application and queue manager are
    on different machines, using different character sets (CCSID).
    The channel failure occurs on the queue manager side.
    If the queue manager is running on a UNIX platform an FFST
    showing a SIGSEGV within an amqrmppa or amqcrsta process is
    observed. If the queue manager is running on Windows,
    then an access violation is observed within an AMQRMPPA.EXE
    process.
    

Local fix

Problem summary

  • ****************************************************************
    USERS AFFECTED:
    Customer passing an MQCSP structure to a client MQCONNX call.
    
    Platforms affected:
     All Distributed (iSeries, all Unix and Windows)
    ****************************************************************
    PROBLEM SUMMARY:
    The codepage conversion of the network flows between client and
    server, containing the MQCSP information, was performed
    incorrectly.
    This caused the server-side message channel agent to access
    invalid storage, and or raise a SIGSEGV  or access violation.
    

Problem conclusion

  • The code was fixed to correct the codepage conversion.
    
    ---------------------------------------------------------------
    The fix is targeted for delivery in the following PTFs:
    
                       v6.0
    Platform           Fix Pack 6.0.1.1
    --------           --------------------
    Windows            U200247
    AIX                U804921
    HP-UX (PA-RISC)    U805233
    HP-UX (Itanium)    U805767
    Solaris (SPARC)    U805234
    Solaris (x86-64)   U805768
    iSeries            SI21854
    Linux (x86)        U805235
    Linux (x86-64)     U805770
    Linux (zSeries)    U805236
    Linux (Power)      U805237
    Linux (s390x)      U805769
    
    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

    IY79457

  • Reported component name

    WEBS MQ FOR LIN

  • Reported component ID

    5724H7204

  • Reported release

    600

  • Status

    CLOSED PER

  • PE

    NoPE

  • HIPER

    NoHIPER

  • Special Attention

    NoSpecatt

  • Submitted date

    2005-12-05

  • Closed date

    2005-12-22

  • Last modified date

    2009-10-29

  • 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

    WEBS MQ FOR LIN

  • Fixed component ID

    5724H7204

Applicable component levels

  • R600 PSY

       UP

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Document Information

Modified date:
29 October 2009