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IZ77172: NFS V4 SERVER CRASHED AT SM4_FREE_FR+00002C APPLIES TO AIX 6100-06

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APAR status

  • Closed as program error.

Error description

  • NFS v4 server crashed at sm4_free_fr+00002C in an error path.
the stack trace looks like
KDB(1)> f
pvthread+02F000 STACK:
￭0526876Csm4_free_fr+00002C (0000000000000000 ￭??)
￭052DE8A0end_create_new_fr+0004A0 (??, ??, ??, ??, ??, ??, ??,
??)
￭052E1858sm4_end_create+000538 (??, ??, ??)
￭052DBB70open_create+0007F0 (??, ??, ??, ??)
￭052DD1D4rfs4_open+0000F4 (??)
￭052074CCrfs4_dispatch_i+00002C (??)
￭05207CB8rfs4_dispatch+000558 (??, ??)
￭05140328svc_getreq+0008C8 (??)
￭0026D6FCthreadentry+00005C (??, ??, ??, ??)

where the working fr's lock is available.

Local fix

  • 



Problem summary


    

  • NFS v4 server crashed at sm4_free_fr+00002C in an error path.
the stack trace looks like
KDB(1)> f
pvthread+02F000 STACK:
 0526876C sm4_free_fr+00002C (0000000000000000  ?? )
 052DE8A0 end_create_new_fr+0004A0 (??, ??, ??, ??, ??, ??, ??,
??)
 052E1858 sm4_end_create+000538 (??, ??, ??)
 052DBB70 open_create+0007F0 (??, ??, ??, ??)
 052DD1D4 rfs4_open+0000F4 (??)
 052074CC rfs4_dispatch_i+00002C (??)
 05207CB8 rfs4_dispatch+000558 (??, ??)
 05140328 svc_getreq+0008C8 (??)
 0026D6FC threadentry+00005C (??, ??, ??, ??)

where the working fr's lock is available.

    



Problem conclusion


    

  • take the fr's lock before calling sm4_free_fr()

    



Temporary fix


    

  • 



Comments


    

  • 5300-11 - use AIX APAR IZ82236
5300-12 - use AIX APAR IZ81807
6100-04 - use AIX APAR IZ79087
6100-05 - use AIX APAR IZ78762
6100-06 - use AIX APAR IZ76886
6100-06 - use AIX APAR IZ77172
7100-00 - use AIX APAR IZ80357

    



APAR Information




    

  • APAR number
    IZ77172
    • 

  • Reported component name
    AIX 610 STD EDI
    • 

  • Reported component ID
    5765G6200
    • 

  • Reported release
    610
    • 

  • Status
    CLOSED  PER
    • 

  • PE
    NoPE
    • 

  • HIPER
    NoHIPER
    • 

  • Submitted date
    2010-06-08
    • 

  • Closed date
    2010-06-08
    • 

  • Last modified date
    2013-03-29
    • 





    

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

    
IZ76886
    

    • 

  • 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  U835918
       UP11/05/10  I  1000
    • 



PTF to Fileset Mapping








      
              
                            

              

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Document Information


            

            


                        

            Modified date:
            

            29 March 2013
            

            
                      

        


        

        


      

    

  



    

  

  
    
            

          
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