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IZ76228: IOCP GETMULTIPLECOMPLETIONSTATUS() NEVER RETURNS APPLIES TO AIX 5300-12

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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.
****************************************************************
* 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 IZ76228.
****************************************************************

Problem conclusion

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

Temporary fix

  • *********
* HIPER *
*********

Comments

  • 



APAR Information




    

  • APAR number
    IZ76228
    • 

  • Reported component name
    AIX  5.3
    • 

  • Reported component ID
    5765G0300
    • 

  • Reported release
    530
    • 

  • Status
    CLOSED  PER
    • 

  • PE
    NoPE
    • 

  • HIPER
    YesHIPER
    • 

  • Submitted date
    2010-05-19
    • 

  • Closed date
    2010-05-19
    • 

  • 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  U837539
       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
            

            
                      

        


        

        


      

    

  



    

  

  
    
            

          
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