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IV39637: WMQ 7.0.1.7 OR LATER: AN FDC WITH PROBE ID AO173001 OR AO175001 IS TRIGGERED BY AN SPINOTIFY CALL

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APAR status

  • Closed as program error.

Error description

  • When connecting from WebSphere Application Server using
    WebSphere  MQ classes for JMS 7.0.1.7 or later to an alias queue
    and an SPINotify call is invoked, an FDC file is generated with
    the following key fields:
    .
    Probe Id          :- AO173001
    Component         :- aouLockObjectCatalogue
    and / or
    
    Probe Id          :- AO175001
    Component         :- aouLockQHandle
    

Local fix

Problem summary

  • ****************************************************************
    USERS AFFECTED:
    Users of WebSphere MQ that are utilizing alias queues.
    
    Platforms affected:
    All Distributed (iSeries, all Unix and Windows)
    ****************************************************************
    PROBLEM SUMMARY:
    If an application is attempting to get from an alias queue and
    no message is available then a thread on the queue manager will
    wait for a message. If the application then no longer wants that
    application then the thread is woken up via a SPINotify call.
    
    During this SPINotify call the wakeup fails due to an internal
    attempt to lock the object catalogue when the alias queue is
    locked, which violates the locking rules. The FDC is generated
    due to this failure.
    

Problem conclusion

  • The WebSphere MQ code has been corrected to ensure that the
    locking in the area concerned follows the required locking
    rules.
    
    ---------------------------------------------------------------
    The fix is targeted for delivery in the following PTFs:
    
                       v7.0
    Platform           Fix Pack 7.0.1.11
    --------           --------------------
    Windows            7.0.1.11
    AIX                7.0.1.11
    HP-UX (PA-RISC)    7.0.1.11
    HP-UX (Itanium)    7.0.1.11
    Solaris (SPARC)    7.0.1.11
    Solaris (x86-64)   7.0.1.11
    iSeries            7.0.1.11
    Linux (x86)        7.0.1.11
    Linux (x86-64)     7.0.1.11
    Linux (zSeries)    7.0.1.11
    Linux (Power)      7.0.1.11
    
    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

    IV39637

  • Reported component name

    WMQ AIX V7

  • Reported component ID

    5724H7221

  • Reported release

    700

  • Status

    CLOSED PER

  • PE

    NoPE

  • HIPER

    NoHIPER

  • Special Attention

    NoSpecatt

  • Submitted date

    2013-04-11

  • Closed date

    2013-05-07

  • Last modified date

    2013-05-07

  • 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

  • R700 PSY

       UP

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Document Information

Modified date:
07 May 2013