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IV19820: AMQ9208/AMQ9209 PRINTS JUNK CHARACTERS IN THE ERROR LOG DUE TO UNINITIALIZED MEMORY BUFFER

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APAR status

  • Closed as program error.

Error description

  • An example of this occurring is -
    AMQ9209: Connection to host '<host name> junk characters'
    closed
    

Local fix

  • Local Fix&#65496;
    None
    

Problem summary

  • ****************************************************************
    USERS AFFECTED:
    Users using WMQ 7.0.1.7 onwards and utilizing channel 'conname'
    may encounter this problem which was introduced by APAR IV01586
    
    Platforms affected:
    All Distributed (iSeries, all Unix and Windows)
    ****************************************************************
    PROBLEM SUMMARY:
    The problem was introduced by an erroneous piece of code which
    copies the port and keeps uninitialized memory buffer. The
    uninitialized trailing portion of the buffer was subsequently
    filled in by junk characters. Code was added in 7.0.1.7 which
    fails fully to initialize a character buffer.
    

Problem conclusion

  • Code changes has been carried out to initialized the buffer
    fully.
    
    ---------------------------------------------------------------
    The fix is targeted for delivery in the following PTFs:
    
                       v7.0
    Platform           Fix Pack 7.0.1.10
    --------           --------------------
    Windows            U200352
    AIX                U853055
    HP-UX (PA-RISC)    U853082
    HP-UX (Itanium)    U853087
    Solaris (SPARC)    U853083
    Solaris (x86-64)   U853089
    iSeries            7.0.1.10
    Linux (x86)        U853084
    Linux (x86-64)     U853088
    Linux (zSeries)    U853085
    Linux (Power)      U853086
    
                       v7.1
    Platform           Fix Pack 7.1.0.2
    --------           --------------------
    Windows            U200351
    AIX                U853019
    HP-UX (Itanium)    U853052
    Solaris (SPARC)    U853048
    Solaris (x86-64)   U853054
    iSeries            7.1.0.2
    Linux (x86)        U853049
    Linux (x86-64)     U853053
    Linux (zSeries)    U853050
    Linux (Power)      U853051
    
    Platform           v7.5
    --------           --------------------
    Multiplatforms     7.5.0.1
    
    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

    IV19820

  • Reported component name

    WMQ AIX V7

  • Reported component ID

    5724H7221

  • Reported release

    701

  • Status

    CLOSED PER

  • PE

    NoPE

  • HIPER

    NoHIPER

  • Special Attention

    NoSpecatt

  • Submitted date

    2012-04-17

  • Closed date

    2012-09-20

  • Last modified date

    2012-11-22

  • 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 AIX V7

  • Fixed component ID

    5724H7221

Applicable component levels

  • R701 PSY

       UP

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Document Information

Modified date:
22 November 2012