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IZ86987: POTENTIAL SYSTEM CRASH WHEN FORCE UNMOUNTING NFS FILESYSTEMS APPLIES TO AIX 6100-06

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APAR status

  • Closed as program error.

Error description

  • System crash with stack trace similar to:
.test_and_setlp+000020
slock+00038C
.simple_lock+000058
nfs4_setup_moved+0000A4
renew_fs_locations+000160
nfs4_getattr_otw+00054C
nfs4getattr+000290
nfs4_getattr+0001C8
vnop_getattr+000050
.kernel_add_gate_cstack+000030
c_strict_check_cached_object+000164
cachefs_getattr+0000C4
aix2onc_getattr+000064
vnop_getattr+000050
getstat+000038
statx+000300

Local fix

  • 



Problem summary


    

  • System crash with stack trace similar to:
.test_and_setlp+000020
slock+00038C
.simple_lock+000058
nfs4_setup_moved+0000A4
renew_fs_locations+000160
nfs4_getattr_otw+00054C
nfs4getattr+000290
nfs4_getattr+0001C8
vnop_getattr+000050
.kernel_add_gate_cstack+000030
c_strict_check_cached_object+000164
cachefs_getattr+0000C4
aix2onc_getattr+000064
vnop_getattr+000050
getstat+000038
statx+000300

    



Problem conclusion


    

  • Verify filesystem is still mounted before certain NFS ops.

    



Temporary fix


    

  • 



Comments


    

  • 6100-04 - use AIX APAR IZ87724
6100-05 - use AIX APAR IZ87677
6100-06 - use AIX APAR IZ86987
7100-00 - use AIX APAR IZ87191

    



APAR Information




    

  • APAR number
    IZ86987
    • 

  • Reported component name
    AIX 610 STD EDI
    • 

  • Reported component ID
    5765G6200
    • 

  • Reported release
    610
    • 

  • Status
    CLOSED  PER
    • 

  • PE
    NoPE
    • 

  • HIPER
    NoHIPER
    • 

  • Submitted date
    2010-10-19
    • 

  • Closed date
    2010-10-19
    • 

  • Last modified date
    2013-04-17
    • 





    

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

    
IZ86780
    

    • 

  • 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:
            

            17 April 2013
            

            
                      

        


        

        


      

    

  



    

  

  
    
            

          
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