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IZ74508: IOCP GETMULTIPLECOMPLETIONSTATUS() NEVER RETURNS APPLIES TO AIX 6100-04

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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 6.1 TL03 or below
or
2. Do not activate IOCP.

Problem summary

  • ****************************************************************
* USERS AFFECTED:
* Users of IOCP on AIX 6.1 Technology Level 4 with the
* bos.iocp.rte fileset below the 6.1.4.3 level.
****************************************************************
* PROBLEM DESCRIPTION:
* Applications using IOCP may crash the system or lead to a
* system hang in the GetMultipleCompletionStatus() routine.
* This is known to affect DB2 with IOCP activated.
****************************************************************
* RECOMMENDATION:
* Install APAR IZ74508.
* Prior to APAR availability, and interim fix is available at
* ftp://public.dhe.ibm.com/aix/efixes/iz74508/
****************************************************************

Problem conclusion

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

Temporary fix

  • *********
* HIPER *
*********

Comments

  • 



APAR Information




    

  • APAR number
    IZ74508
    • 

  • Reported component name
    AIX 610 STD EDI
    • 

  • Reported component ID
    5765G6200
    • 

  • Reported release
    610
    • 

  • Status
    CLOSED  PER
    • 

  • PE
    NoPE
    • 

  • HIPER
    YesHIPER
    • 

  • Submitted date
    2010-04-12
    • 

  • Closed date
    2010-04-20
    • 

  • Last modified date
    2013-03-28
    • 






Fix information


    

  • Fixed component name
    AIX 610 STD EDI
    • 

  • Fixed component ID
    5765G6200
    • 



Applicable component levels


    

  • R610  PSY  U834970
       UP10/08/21  I  1000
    • 



PTF to Fileset Mapping








      
              
                            

              

              [{"Business Unit":{"code":"BU054","label":"Systems w\/TPS"},"Product":{"code":"SSMV87","label":"AIX 6.1 Enterprise Edition"},"Component":"","ARM Category":[],"Platform":[{"code":"PF025","label":"Platform Independent"}],"Version":"610","Edition":"","Line of Business":{"code":"LOB08","label":"Cognitive Systems"}},{"Business Unit":{"code":"BU058","label":"IBM Infrastructure w\/TPS"},"Product":{"code":"SSMVAX","label":"AIX Express Edition"},"Component":"","ARM Category":[],"Platform":[{"code":"PF025","label":"Platform Independent"}],"Version":"610","Edition":"","Line of Business":{"code":"LOB08","label":"Cognitive Systems"}},{"Business Unit":{"code":"BU054","label":"Systems w\/TPS"},"Product":{"code":"SSAUMY","label":"IBM AIX Enterprise Edition"},"Component":"","ARM Category":[],"Platform":[{"code":"PF025","label":"Platform Independent"}],"Version":"610","Edition":"","Line of Business":{"code":"","label":""}},{"Business Unit":{"code":"BU054","label":"Systems w\/TPS"},"Product":{"code":"SG11Q","label":"AIX 6.1 HIPERS, APARs and Fixes"},"Component":"","ARM Category":[],"Platform":[{"code":"PF025","label":"Platform Independent"}],"Version":"610","Edition":"","Line of Business":{"code":"","label":""}}]
              

                          

          
 
        

      

    

      

        

          

            
Document Information


            

            


                        

            Modified date:
            

            28 March 2013
            

            
                      

        


        

        


      

    

  



    

  

  
    
            

          
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