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IZ74749: IOCP GETMULTIPLECOMPLETIONSTATUS() NEVER RETURNS APPLIES TO AIX 5300-11

A fix is available

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APAR status

  • Closed as program error.

Error description

  • Applications using IOCP may crash the
    system or lead to an application hang in
    GetMultipleCompletionStatus() routine.
    

Local fix

  • 1. Stay at 5.3 TL10 or below
    or
    2. Do not activate IOCP.
    

Problem summary

  • ****************************************************************
    * USERS AFFECTED:
    * Users of IOCP on AIX 5.3 Technology Level 11 with the
    * bos.iocp.rte fileset below the 5.3.11.3 level.
    ****************************************************************
    * PROBLEM DESCRIPTION:
    * Applications using IOCP  may crash the system or lead to a
    * application hang in GteMultipleConnectionStatus() routine.
    ****************************************************************
    * RECOMMENDATION:
    * Install APAR IZ74749.
    * Prior to APAR availability, and interim fix is available at
    * ftp://public.dhe.ibm.com/aix/efixes/iz74749/
    ****************************************************************
    

Problem conclusion

  • Properly initialize AIO/IOCP requests with iocfd for correct
    post I/O processing.
    

Temporary fix

  • *********
    * HIPER *
    *********
    

Comments

APAR Information

  • APAR number

    IZ74749

  • Reported component name

    AIX 5.3

  • Reported component ID

    5765G0300

  • Reported release

    530

  • Status

    CLOSED PER

  • PE

    NoPE

  • HIPER

    YesHIPER

  • Submitted date

    2010-04-16

  • Closed date

    2010-04-20

  • Last modified date

    2013-03-28

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

    IZ74508

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

Fix information

  • Fixed component name

    AIX 5.3

  • Fixed component ID

    5765G0300

Applicable component levels

  • R530 PSY U837713

       UP10/09/20 I 1000

PTF to Fileset Mapping

[{"Business Unit":{"code":"BU054","label":"Systems w\/TPS"},"Product":{"code":"SG11P","label":"APARs - AIX 5.3 environment"},"Component":"","ARM Category":[],"Platform":[{"code":"PF025","label":"Platform Independent"}],"Version":"530","Edition":"","Line of Business":{"code":"","label":""}}]

Document Information

Modified date:
28 March 2013