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IV28148: CORE DUMP UPON FORK() WHEN USING MALLOCTYPE BUCKETS APPLIES TO AIX 7100-02

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APAR status

  • Closed as program error.

Error description

  • A process that forks heavily while using MALLOCTYPE
buckets  can crash with a core dump.
This is because of a memory corruption that can happen
under certain circumstances.

Local fix

  • 



Problem summary


    

  • A process that forks heavily while using MALLOCTYPE buckets
can crash with a core dump.

    



Problem conclusion


    

  • Add locking mechanism in case of fork and malloc requests.

    



Temporary fix


    

  • 



Comments


    

  • 6100-08 - use AIX APAR IV20249
6100-08 - use AIX APAR IV20249
7100-02 - use AIX APAR IV28148

    



APAR Information




    

  • APAR number
    IV28148
    • 

  • Reported component name
    AIX V7.1
    • 

  • Reported component ID
    5765H4000
    • 

  • Reported release
    710
    • 

  • Status
    CLOSED  PER
    • 

  • PE
    NoPE
    • 

  • HIPER
    NoHIPER
    • 

  • Submitted date
    2012-09-18
    • 

  • Closed date
    2012-09-18
    • 

  • Last modified date
    2013-04-12
    • 





    

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

    
IV03273
    

    • 

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

    
U858301
    

    • 



Fix information


    

  • Fixed component name
    AIX V7.1
    • 

  • Fixed component ID
    5765H4000
    • 



Applicable component levels


    

  • R710  PSY  U858301
       UP13/02/19  I  1000
    • 








      
              
                            

              

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Document Information


            

            


                        

            Modified date:
            

            12 April 2013
            

            
                      

        


        

        


      

    

  



    

  

  
    
            

          
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