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IV12752: Probe AD031045 from adiWriteFile in a multi-instance queue manager

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APAR status

  • Closed as program error.

Error description

  • A probe AD031045 FDC, with the first data block in the FDC
    being the value 9 (meaning EBADF), from adiWriteFile in a
    multi-instance queue manager may be encountered. An example
    showing the data block containing the value 9 is:
    
    ---------{ xcsFFST
    
    
    ffffffff6f93ba70                                 00000009
    ....
    
    The EBADF is the error return from an action (such as seek) on
    a bad file descriptor. Other FDCs may be reported from other
    locations in MQ for attempts to act on a bad file descriptor.
    
    Another possible issue that could be encountered, relating to
    this problem, would be corruption of a queue file.
    

Local fix

Problem summary

  • ****************************************************************
    USERS AFFECTED:
    This problem only affects a queue manager configured to be
    multi-instance. Then, there is a small risk of the problem being
    encountered subsequent to queue files being closed.
    
    Platforms affected:
    All Distributed (iSeries, all Unix and Windows)
    ****************************************************************
    PROBLEM SUMMARY:
    When a queue manager is configured as multi-instance, the
    opening and closing of queue files between multiple threads is
    not handled reliably, and there is therefore the possibility of
    file descriptor confusion between threads.
    

Problem conclusion

  • The logic for handling queue files for queue managers configured
    as multi-instance, has been reworked to ensure management of
    queue files is correctly performed without confusion between
    threads.
    
    ---------------------------------------------------------------
    The fix is targeted for delivery in the following PTFs:
    
                       v7.0
    Platform           Fix Pack 7.0.1.8
    --------           --------------------
    Windows            U200335
    AIX                U845856
    HP-UX (PA-RISC)    U847965
    HP-UX (Itanium)    U847970
    Solaris (SPARC)    U847966
    Solaris (x86-64)   U847972
    iSeries            7.0.1.8
    Linux (x86)        U847967
    Linux (x86-64)     U847971
    Linux (zSeries)    U847968
    Linux (Power)      U847969
    
    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

    IV12752

  • 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

    2012-01-10

  • Closed date

    2012-01-27

  • Last modified date

    2012-01-27

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

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

    IV19976

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:
27 January 2012