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IV12592: SYSTEM CRASH IN NETINFO_UNIXDOMNLIST APPLIES TO AIX 6100-05

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APAR status

  • Closed as program error.

Error description

  • Problem:
System crash with following stack

CRASH INFORMATION:
CPU 3 CSA F00000002FF47600 at time of crash, error code
for
LEDs: 30000000
pvthread+02BD00 STACK:
[00009500].simple_lock+000000 ()
[00450E24]netinfo_unixdomnlist+000824 (??, ??, ??, ??,
??, ??)
[0451214C]netinfo+00006C (??, ??, ??, ??, ??, ??)
[004504DC]netinfo+0000FC (??, ??, ??, ??)
[00003850]ovlya_addr_sc_flih_main+000130 ()
[kdb_get_virtual_memory] no real storage @
FFFFFFFFFFFEF20
[100002640]0000000100002640 ()
[kdb_read_mem] no real storage @ FFFFFFFFFFF5E30

Local fix

  • 



Problem summary


    

  • ****************************************************************
* USERS AFFECTED:
* Users of the 6100-05 Technology Level with the bos.mp64
* fileset below the 6.1.5.11 level.
****************************************************************
* PROBLEM DESCRIPTION:
* If a lot of file operations are happening in the system, there
* is a possibility that the same file pointer is reused and that
* may be different type ( For example VNODE). This can cause a
* system crash in netinfo_unixdomnlist.
****************************************************************
* RECOMMENDATION:
* Install APAR IV12592.
****************************************************************

    



Problem conclusion


    

  • File lock is taken before checking whether the file type is
socket. This change will avoid taking socket lock on non
socket files and prevents the system from crash.

    



Temporary fix


    

  • *********
* HIPER *
*********

    



Comments


    

  • 6100-05 - use AIX APAR IV12592
6100-06 - use AIX APAR IV09793
6100-07 - use AIX APAR IV09981
6100-07 - use AIX APAR IV09981
6100-08 - use AIX APAR IV10663
7100-00 - use AIX APAR IV20295
7100-00 - use AIX APAR IV20295
7100-01 - use AIX APAR IV09942

    



APAR Information




    

  • APAR number
    IV12592
    • 

  • Reported component name
    AIX 610 STD EDI
    • 

  • Reported component ID
    5765G6200
    • 

  • Reported release
    610
    • 

  • Status
    CLOSED  PER
    • 

  • PE
    NoPE
    • 

  • HIPER
    YesHIPER
    • 

  • Submitted date
    2011-12-28
    • 

  • Closed date
    2011-12-28
    • 

  • Last modified date
    2013-02-26
    • 





    

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

    
IV09793
    

    • 

  • 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  U849817
       UP12/07/17  I  1000
    • 



PTF to Fileset Mapping








      
              
                            

              

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Document Information


            

            


                        

            Modified date:
            

            26 February 2013
            

            
                      

        


        

        


      

    

  



    

  

  
    
            

          
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