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IV04893: CRASH IN VM_XWRITE_CHUNK APPLIES TO AIX 6100-06

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APAR status

  • Closed as program error.

Error description

  • The crash is due to an assert and has the following
stacktrace:

(160)> f
pvthread+2A5E00 STACK:
[0001BF00]abend_trap+000000 ()
[00628FCC]vm_xwrite_chunk+00012C (??, ??, ??, ??, ??)
[00629E0C]vm_xwritep+00030C (??, ??, ??, ??)
[04B66658]flush_vp+000838 (??, ??)
[04B66D54]sync_vp+000134 (??)
[04C69D98]nfs3_getattr+000118 (??, ??, ??, ??)
[04B14864]aix2onc_getattr+000064 (??, ??, ??)
[00570980]vnop_getattr_flags+000040 (??, ??, ??)
[0058C308]statx+000208 (??, ??, ??, ??)
[00003850]ovlya_addr_sc_flih_main+000130 ()
[kdb_get_virtual_memory] no real storage @ 2FF12028
[D0132654]D0132654 ()
[kdb_read_mem] no real storage @ FFFFFFFFFFF93C0

Local fix

  • 



Problem summary


    

  • The system will crash with an assert in vm_xrite_chunk, with
an error code of EINVAL_VMWRITE_BAD_NEXTVPN.

    



Problem conclusion


    

  • The routine that does writes for the async client is modified
to explicitly check for this and process this condition.

    



Temporary fix


    

  • 



Comments


    

  • 



APAR Information




    

  • APAR number
    IV04893
    • 

  • Reported component name
    AIX 610 STD EDI
    • 

  • Reported component ID
    5765G6200
    • 

  • Reported release
    610
    • 

  • Status
    CLOSED  PER
    • 

  • PE
    NoPE
    • 

  • HIPER
    NoHIPER
    • 

  • Submitted date
    2011-08-09
    • 

  • Closed date
    2011-08-09
    • 

  • Last modified date
    2013-04-07
    • 





    

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

    
IV01239
    

    • 

  • 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  U843098
       UP11/10/15  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":"610","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":"610","Edition":"","Line of Business":{"code":"LOB08","label":"Cognitive Systems"}},{"Business Unit":{"code":"BU054","label":"Systems w\/TPS"},"Product":{"code":"SSAUMY","label":"IBM AIX Enterprise Edition"},"Component":"","ARM Category":[],"Platform":[{"code":"PF025","label":"Platform Independent"}],"Version":"610","Edition":"","Line of Business":{"code":"","label":""}},{"Business Unit":{"code":"BU054","label":"Systems w\/TPS"},"Product":{"code":"SG11Q","label":"AIX 6.1 HIPERS, APARs and Fixes"},"Component":"","ARM Category":[],"Platform":[{"code":"PF025","label":"Platform Independent"}],"Version":"610","Edition":"","Line of Business":{"code":"","label":""}}]
              

                                                                    

          
 
        

      

    

      

        

          

            
Document Information


            

            


                        

            Modified date:
            

            07 April 2013
            

            
                      

        


        

        


      

    

  



    

  

  
    
            

          
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