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IC75807: ACCESS VIOLATION IN CLIENT DURING AUTORECONNECT AFTER A QUEUE MANAGER RESTART

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APAR status

  • Closed as program error.

Error description

  • A WebSphere MQ v7.0.1 client taking advantage of the
    autoreconnect feature generates FDCs with probe id XC130031
    indicating that the client suffered an access violation. This
    happens when the queue manager is restarted.
    
    MQM Function Stack:
    rcnReconnectThread
    rcnDoreconnect
    rriLookupIterate
    rcnRecreateHandle
    xcsFFST
    

Local fix

Problem summary

  • ****************************************************************
    USERS AFFECTED:
    Users of WebSphere MQ who use client autoreconnect
    
    Platforms affected:
    All Distributed (iSeries, all Unix and Windows)
    ****************************************************************
    PROBLEM SUMMARY:
    During reconnection of a client to the queue manager, a pointer
    was not correctly initialized which caused the access violation
    error resulting in FDC XC130031.
    

Problem conclusion

  • The code was modified to ensure that the pointer is always
    correctly initialized during client reconnection.
    
    ---------------------------------------------------------------
    The fix is targeted for delivery in the following PTFs:
    
                       v7.0
    Platform           Fix Pack 7.0.1.7
    --------           --------------------
    Windows            U200333
    AIX                U843721
    HP-UX (PA-RISC)    U844089
    HP-UX (Itanium)    U844094
    Solaris (SPARC)    U844090
    Solaris (x86-64)   U844096
    iSeries            tbc_p700_0_1_7
    Linux (x86)        U844091
    Linux (x86-64)     U844095
    Linux (zSeries)    U844092
    Linux (Power)      U844093
    
    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

    IC75807

  • 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

    2011-04-14

  • Closed date

    2011-07-28

  • Last modified date

    2011-07-28

  • 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:
28 July 2011