IBM Support

IJ50417: APP HANG DUE TO RACE CONDITION BETWEEN SOCKET READ AND CLOSE APPLIES TO AIX 7200-05

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APAR status

  • Closed as program error.

Error description

  • Application can hang when a socket is attempted to read
and close by two different threads at the same time.
In a problematic case both the threads will wait for
each other forever.
So far this problem has been reported by SAP application.

Local fix

  • 



Problem summary


    

  • Two user threads are going to continious sleep

    



Problem conclusion


    

  • Handled the race condtion properly between read and close

    



Temporary fix


    

  • 



Comments


    

  • 



APAR Information




    

  • APAR number
    IJ50417
    • 

  • Reported component name
    AIX V7.2
    • 

  • Reported component ID
    5765CD200
    • 

  • Reported release
    720
    • 

  • Status
    CLOSED  PER
    • 

  • HIPER
    NoHIPER
    • 

  • Special Attention
    NoSpecatt / Xsystem
    • 

  • Submitted date
    2024-03-11
    • 

  • Closed date
    2025-01-20
    • 

  • Last modified date
    2025-12-10
    • 





    

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

    • 

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

    
IJ53544 IJ53571 IJ54344
    

    • 



Fix information


    

  • Fixed component name
    AIX V7.2
    • 

  • Fixed component ID
    5765CD200
    • 



Applicable component levels


    








      
              
                            

              

              [{"Business Unit":{"code":"BU058","label":"IBM Infrastructure w\/TPS"},"Product":{"code":"SG11S","label":"AIX 7.2 HIPERS- APARs and Fixes"},"Platform":[{"code":"PF025","label":"Platform Independent"}],"Version":"720","Line of Business":{"code":"LOB08","label":"Cognitive Systems"}}]
              

                                                                    

          
 
        

      

    

      

        

          

            
Document Information


            

            


                        

            Modified date:
            

            10 December 2025
            

            
                      

        


        

        


      

    

  



    

  

  
    
            

          
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