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IV71321: SYSTEM CRASH WHEN REMOVING A CPU APPLIES TO AIX 7100-03

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APAR status

  • Closed as program error.

Error description

  • system crash with the following stack trace:
￭00466BE0rm_smt_sibling+000300 (0000000000000000 ￭??)
￭001E98F0rmcpu_doit+000A50 (??, ??)
￭006B43E4dr_callout+000084 (??, ??, ??)
￭006B38DCkernel_notify+0000BC (??, ??)
￭006B5A3C_dr_notify+00039C (??, ??, ??, ??)
￭00003948syscall+000240 ()
￭10006398remove_a_cpu+0006F8 ()
￭10008030dlpar_remove+000070 ()
￭100006F0main+000310 (??, ??)
￭10000168__start+000068 ()

Local fix

  • 



Problem summary


    

  • system crash with the following stack trace:
 00466BE0 rm_smt_sibling+000300 (0000000000000000  ?? )
 001E98F0 rmcpu_doit+000A50 (??, ??)
 006B43E4 dr_callout+000084 (??, ??, ??)
 006B38DC kernel_notify+0000BC (??, ??)
 006B5A3C _dr_notify+00039C (??, ??, ??, ??)
 00003948 syscall+000240 ()
 10006398 remove_a_cpu+0006F8 ()
 10008030 dlpar_remove+000070 ()
 100006F0 main+000310 (??, ??)
 10000168 __start+000068 ()

    



Problem conclusion


    

  • handle out of order removes in rm_smt_sibling() and validate
SMT thread designation in add_smt_sibling()

    



Temporary fix


    

  • 



Comments


    

  • 7100-03 - use AIX APAR IV71321

    



APAR Information




    

  • APAR number
    IV71321
    • 

  • Reported component name
    AIX V7.1
    • 

  • Reported component ID
    5765H4000
    • 

  • Reported release
    710
    • 

  • Status
    CLOSED  PER
    • 

  • PE
    NoPE
    • 

  • HIPER
    NoHIPER
    • 

  • Submitted date
    2015-03-23
    • 

  • Closed date
    2015-03-23
    • 

  • Last modified date
    2015-05-22
    • 





    

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

    • 

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

    
IV71693
    

    • 



Fix information


    

  • Fixed component name
    AIX V7.1
    • 

  • Fixed component ID
    5765H4000
    • 



Applicable component levels


    

  • R710  PSY  U865837
       UP15/05/19  I  1000
    • 



PTF to Fileset Mapping








      
              
                            

              

              [{"Business Unit":{"code":"BU054","label":"Systems w\/TPS"},"Product":{"code":"SSMV87","label":"AIX 6.1 Enterprise Edition"},"Component":"","ARM Category":[],"Platform":[{"code":"PF025","label":"Platform Independent"}],"Version":"710","Edition":"","Line of Business":{"code":"LOB08","label":"Cognitive Systems"}},{"Business Unit":{"code":"BU058","label":"IBM Infrastructure w\/TPS"},"Product":{"code":"SSMVAX","label":"AIX Express Edition"},"Component":"","ARM Category":[],"Platform":[{"code":"PF025","label":"Platform Independent"}],"Version":"710","Edition":"","Line of Business":{"code":"LOB08","label":"Cognitive Systems"}},{"Business Unit":{"code":"BU054","label":"Systems w\/TPS"},"Product":{"code":"SG11R","label":"AIX 7.1 HIPERS, APARs and Fixes"},"Component":"","ARM Category":[],"Platform":[{"code":"PF025","label":"Platform Independent"}],"Version":"710","Edition":"","Line of Business":{"code":"","label":""}}]
              

                          

          
 
        

      

    

      

        

          

            
Document Information


            

            


                        

            Modified date:
            

            22 May 2015
            

            
                      

        


        

        


      

    

  



    

  

  
    
            

          
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