IBM Support

IC93096: MEMORY LEAK IN COMMON SERVICES DLL AMQXCS2.DLL

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You can track all active APARs for this component.

 

APAR status

  • Closed as program error.

Error description

  • A memory leak has been found in the amqxcs2.dll during the
    initialization phase. The leak can be diagnosed by any memory
    profiling tools in the InitializeCriticalSection method. The
    critical section object was consuming system resources which
    were not freed up properly. The leak can be seen if the dlls are
    loaded in a loop multiple times.
    

Local fix

Problem summary

  • ****************************************************************
    USERS AFFECTED:
    Users of WebSphere MQ on Windows
    
    Platforms affected:
    Windows
    
    ****************************************************************
    PROBLEM SUMMARY:
    There is a small memory leak as a result of an unowned critical
    section object not being deleted properly. When the LoadLibrary
    call are issued in a loop for this dll then this memory leak
    grows in size.
    

Problem conclusion

  • The fix ensures that all critical section resources are
    initialized only if required and are deleted after its use so as
    to ensure that all the system resources used by it are freed.
    
    ---------------------------------------------------------------
    The fix is targeted for delivery in the following:
    
                       v7.0
    Platform           Fix Pack 7.0.1.11
    --------           --------------------
    Windows            7.0.1.11
    
                       v7.1
    Platform           Fix Pack 7.1.0.4
    --------           --------------------
    Windows            7.1.0.4
    
    Version            v7.5
    --------           --------------------
    Fix available in:  7.5.0.3
    
    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

    IC93096

  • 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

    2013-06-14

  • Closed date

    2013-06-27

  • Last modified date

    2013-08-15

  • 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

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Document Information

Modified date:
15 August 2013