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IZ78763: MACHINE CRASHED AT NFS4_TRASH_MOUNT+00011C DURING FORCE UNMOUNT APPLIES TO AIX 6100-05

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APAR status

  • Closed as program error.

Error description

  • machine crashed at nfs4_trash_mount+00011C during force unmount
with stack trace similiar to
KDB(6)> f
pvthread+040A00 STACK:
￭06C2D7DCnfs4_trash_mount+00011C (0000000000000009 ￭??)
￭06C36E2Cnfs4_unmount+00020C (??, ??, ??)
￭005F9FA0vfs_unmount+000080 (??, ??, ??)
￭0061C294kunmount+000114 (??, ??, ??)
￭0061CAC8uvmount+000208 (??, ??)
￭00003878ovlya_addr_sc_flih_main+000158 ()
￭10005508unmountmain+000088 (??, ??)
￭1000424Cmain+00016C (??, ??)
￭10000168__start+000068 ()

with memory trace shows we freed up the server_list_data
already.

Local fix

  • 



Problem summary


    

  • machine crashed at nfs4_trash_mount+00011C during force unmount
with stack trace similiar to
KDB(6)> f
pvthread+040A00 STACK:
 06C2D7DC nfs4_trash_mount+00011C (0000000000000009  ?? )
 06C36E2C nfs4_unmount+00020C (??, ??, ??)
 005F9FA0 vfs_unmount+000080 (??, ??, ??)
 0061C294 kunmount+000114 (??, ??, ??)
 0061CAC8 uvmount+000208 (??, ??)
 00003878 ovlya_addr_sc_flih_main+000158 ()
 10005508 unmountmain+000088 (??, ??)
 1000424C main+00016C (??, ??)
 10000168 __start+000068 ()

with memory trace shows we freed up the server_list_data
already.

    



Problem conclusion


    

  • in nfs4_trash_mount(), obtain the next pointer before calling
nfs4_put_work()

    



Temporary fix


    

  • 



Comments


    

  • 6100-04 - use AIX APAR IZ79088
6100-05 - use AIX APAR IZ78763
6100-06 - use AIX APAR IZ76887
6100-06 - use AIX APAR IZ77177
7100-00 - use AIX APAR IZ79920

    



APAR Information




    

  • APAR number
    IZ78763
    • 

  • Reported component name
    AIX 610 STD EDI
    • 

  • Reported component ID
    5765G6200
    • 

  • Reported release
    610
    • 

  • Status
    CLOSED  PER
    • 

  • PE
    NoPE
    • 

  • HIPER
    NoHIPER
    • 

  • Submitted date
    2010-07-02
    • 

  • Closed date
    2010-07-02
    • 

  • Last modified date
    2013-03-29
    • 





    

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

    
IZ76887
    

    • 

  • 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  U834687
       UP10/08/20  I  1000
    • 



PTF to Fileset Mapping








      
              
                            

              

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Document Information


            

            


                        

            Modified date:
            

            29 March 2013
            

            
                      

        


        

        


      

    

  



    

  

  
    
            

          
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