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IV16584: CRASH IN SNA_V5ROUTER64

A fix is available

Communications Server for AIX, Version 6.4 -- Latest PTFs

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APAR status

  • Closed as program error.

Error description

  • Communications Server for AIX, Version 6.4
------------------------------------------
Crash in sna_v5router64 during startup at boot time.

Local fix

  • 



Problem summary


    

  • USERS AFFECTED: All users.

PROBLEM DESCRIPTION:
During a failed startup of SNA at bot time, the kernel crashed
with a stack showing the logging function
vll_router_write_log_to_buf called from vpr_stream_open. The
problem was seen when snatpsrvd is attempting to issue an open
to the logger function in the kernel, but any of the SNA
processes could trigger this. The dump showed that the
snaerrlog process was no longer running.

PROBLEM SUMMARY:
There is a very small window where the logging code has been
initialized and then terminated while a log entry is being
generated.

    



Problem conclusion


    

  • Additional locking code has been added to protect against this
window.

    



Temporary fix


    

  • sna_v5router64

    



Comments


    

  • 



APAR Information




    

  • APAR number
    IV16584
    • 

  • Reported component name
    CS AIX V6.X
    • 

  • Reported component ID
    5765E5100
    • 

  • Reported release
    640
    • 

  • Status
    CLOSED  PER
    • 

  • PE
    NoPE
    • 

  • HIPER
    NoHIPER
    • 

  • Special Attention
    NoSpecatt
    • 

  • Submitted date
    2012-03-02
    • 

  • Closed date
    2012-03-08
    • 

  • Last modified date
    2012-09-11
    • 






Fix information


    

  • Fixed component name
    CS AIX V6.X
    • 

  • Fixed component ID
    5765E5100
    • 



Applicable component levels


    

  • R631  PSY
       UP
    • 

  • R640  PSY  U851826
       UP12/09/11  I  1000
    • 








      
              
                            

              

              [{"Business Unit":{"code":"BU058","label":"IBM Infrastructure w\/TPS"},"Product":{"code":"SSPQKF","label":"Communications Server for AIX"},"Component":"","ARM Category":[],"Platform":[{"code":"PF025","label":"Platform Independent"}],"Version":"640","Edition":"","Line of Business":{"code":"LOB35","label":"Mainframe SW"}}]
              

                          

          
 
        

      

    

      

        

          

            
Document Information


            

            


                        

            Modified date:
            

            11 September 2012
            

            
                      

        


        

        


      

    

  



    

  

  
    
            

          
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