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IV06164: INCORRECT SERIALIZATION OF J2 PAGER BUFFER ACCESS CAUSES CRASH APPLIES TO AIX 7100-00

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APAR status

  • Closed as program error.

Error description

  • crash caused by serialization problem with JFS2 page
buffer used to
co-ordinate reads and writes of file system metadata.
This looks to
be a rare condition only happening in a small timing
window.

The stack can be :
[0025BB44]bmRelease+000084 (00000000002200D1 [??])
[002B2370]xtLookup+0002B0 (??, ??, ??, ??, ??, ??, ??)
[00279D60]pageIn+000160 (??, ??, ??, ??)
[0027BAE8]j2PagerStrategy+0005E8 (??)
[00063834]v_pdtsio_common+0006B4 (??, ??, ??, ??, ??)
[00063C10]v_pdtsio+000050 (??)
[0006470C]v_pfsiox+0002EC (??)
[0034218C]pfget+0003CC (??, ??, ??, ??, ??, ??, ??)
[00394B90]v_pfget+000770 (??, ??, ??, ??, ??, ??)
[00147480]state_save_ret+000578 ()

Local fix

  • 



Problem summary


    

  • 0025BB44 bmRelease+000084 (00000000002200D1  ?? )
 002B2370 xtLookup+0002B0 (??, ??, ??, ??, ??, ??, ??)
 00279D60 pageIn+000160 (??, ??, ??, ??)
 0027BAE8 j2PagerStrategy+0005E8 (??)
 00063834 v_pdtsio_common+0006B4 (??, ??, ??, ??, ??)
 00063C10 v_pdtsio+000050 (??)
 0006470C v_pfsiox+0002EC (??)
 0034218C pfget+0003CC (??, ??, ??, ??, ??, ??, ??)
 00394B90 v_pfget+000770 (??, ??, ??, ??, ??, ??)
 00147480 state_save_ret+000578 ()

    



Problem conclusion


    

  • bmHold should reset PB_RDONLY flag .

    



Temporary fix


    

  • 



Comments


    

  • 



APAR Information




    

  • APAR number
    IV06164
    • 

  • Reported component name
    AIX V7.1
    • 

  • Reported component ID
    5765H4000
    • 

  • Reported release
    710
    • 

  • Status
    CLOSED  PER
    • 

  • PE
    NoPE
    • 

  • HIPER
    NoHIPER
    • 

  • Submitted date
    2011-08-12
    • 

  • Closed date
    2011-08-12
    • 

  • Last modified date
    2013-04-08
    • 





    

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

    
IV02714
    

    • 

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

    • 



Fix information


    

  • Fixed component name
    AIX V7.1
    • 

  • Fixed component ID
    5765H4000
    • 



Applicable component levels


    

  • R710  PSY  U845642
       UP11/11/15  I  1000
    • 



PTF to Fileset Mapping








      
              
                            

              

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Document Information


            

            


                        

            Modified date:
            

            08 April 2013
            

            
                      

        


        

        


      

    

  



    

  

  
    
            

          
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