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IV30086: ASSERT IN IOCP_INSQUEUE APPLIES TO AIX 6100-09

Fix pending

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APAR status

  • Closed as program error.

Error description

  • This problem only happens with applications using IOCP.
It has primarily been seen with Lotus Domino Server.
.
In certain timing, when the application is sending data
and the server abruptly closes the connection, the system
can crash.
.

Local fix

  • 



Problem summary


    

  • An assert is hit with the following stack:

 F1000000C0277534 iocp.ext:iocp_insque+000014
(F1000E000577D0E0, F1000000C0280A08  ?? )
 F1000000C0275470 iocp.ext:iocp_process_pending_io+000270 (??)
 F1000000C0277C70 iocp.ext:iocp_isr+000070 ()
 00014D70 .hkey_legacy_gate+00004C ()
 004A11B8 Netintr+0002F8 ()
 004A0E80 netisr_thread+000020 ()
 00255654 threadentry+000094 (??, ??, ??, ??)

This happens if the IOCP server closes the connection when
the client is still sending the data.

    



Problem conclusion


    

  • Added a check in the IOCP code to avoid the assert.

    



Temporary fix


    

  • 



Comments


    

  • 



APAR Information




    

  • APAR number
    IV30086
    • 

  • Reported component name
    AIX 610 STD EDI
    • 

  • Reported component ID
    5765G6200
    • 

  • Reported release
    610
    • 

  • Status
    CLOSED  PER
    • 

  • PE
    NoPE
    • 

  • HIPER
    NoHIPER
    • 

  • Submitted date
    2012-10-12
    • 

  • Closed date
    2012-10-12
    • 

  • Last modified date
    2013-11-23
    • 





    

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

    
IV24569
    

    • 

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

    • 



Fix information


    

  • Fixed component name
    AIX 610 STD EDI
    • 

  • Fixed component ID
    5765G6200
    • 



Applicable component levels


    

  • R610  PSY  U854535
       UP13/11/20  I  1000
    • 



PTF to Fileset Mapping








      
              
                            

              

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Document Information


            

            


                        

            Modified date:
            

            23 November 2013
            

            
                      

        


        

        


      

    

  



    

  

  
    
            

          
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