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IV97016: GETADDRINFO CAN COREDUMP WITH SEGV WHEN USING MALLOC POOL APPLIES TO AIX 7100-04

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You can track all active APARs for this component.

 

APAR status

  • Closed as program error.

Error description

  • when using MALLOCOPTIONS=pool and /etc/netsvc.conf
doesn't
specify an hosts preference, 64 bits applications might
coredump in :
calloc_pool@AF111_41(??, ??, ??, ??, ??) at
0x90000000002e7c4
calloc(??, ??) at 0x90000000002df08
getaddrinfo(??, ??, ??, ??) at 0x900000000133ef4
main(), line 13 in "test_getaddrinfo.c"

This was mainly seen with DataFlowEngine process but can
be seen with others.

Local fix

  • Specify hosts resolution order in /etc/netsvc.conf so
that IPV4 resolve
first I.E :
hosts=local4,bind4

Problem summary

  • getaddrinfo subroutine may coredump with SEGV when using
malloc pool option.

Problem conclusion

  • Code has been changed to correct the coredump scenario.

Temporary fix

  • 



Comments


    

  • 



APAR Information




    

  • APAR number
    IV97016
    • 

  • Reported component name
    AIX V7.1
    • 

  • Reported component ID
    5765H4000
    • 

  • Reported release
    710
    • 

  • Status
    CLOSED  PER
    • 

  • PE
    NoPE
    • 

  • HIPER
    NoHIPER
    • 

  • Special Attention
    NoSpecatt / Xsystem
    • 

  • Submitted date
    2017-06-07
    • 

  • Closed date
    2017-06-07
    • 

  • Last modified date
    2017-10-05
    • 





    

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

    
IV95824
    

    • 

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

    • 



Fix information


    

  • Fixed component name
    AIX V7.1
    • 

  • Fixed component ID
    5765H4000
    • 



Applicable component levels


    

  • R710  PSY  U878452
       UP17/10/05  I  1000
    • 








      
              
                            

              

              [{"Business Unit":{"code":"BU058","label":"IBM Infrastructure w\/TPS"},"Product":{"code":"SG11R"},"Platform":[{"code":"PF025","label":"Platform Independent"}],"Version":"710","Line of Business":{"code":"LOB08","label":"Cognitive Systems"}}]
              

                          

          
 
        

      

    

      

        

          

            
Document Information


            

            


                        

            Modified date:
            

            19 April 2022
            

            
                      

        


        

        


      

    

  



    

  

  
    
            

          
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