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IV47394: Crash in vm_cmem_get_cop_prop after dlpar_cpu_add on AME system APPLIES TO AIX 6100-08

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APAR status

  • Closed as program error.

Error description

  • On systems with AME (Active Memory Expansion) enabled,
using any expansion factor (including 1.0), after an LPM
or Hibernation/Resume is performed from a Power7 to
Power7+, then a DLPAR CPU add is done, the system may
crash with the following stack:
00022080 abend_trap+000000 ()
0011EF0C vm_cmem_get_cop_prop+00028C (??, ??)
00129708 vm_cmem_prep_hw_assist+000148 ()
001276F8 vm_cmem_dlpar_handler+000098 (??, ??, ??, ??)
0023B51C invoke_reconfig_handlers_reentrant+00055C (??,
??, ??)
006072C8 run_notify+000108 (??, ??)
006091E0 _dr_notify+000340 (??, ??, ??, ??)
000038A4 mfspurr_sc_flih01+0000E4 ()
kdb_get_virtual_memory  no real storage @ 2FF22868
1000C964 1000C964 ()

Local fix

  • System will reboot

Problem summary

  • ****************************************************************
* USERS AFFECTED:
* Systems running the 6100-08 Technology Level with
* bos.mp64 between and including the 6.1.8.0 and 6.1.8.16
* levels.
****************************************************************
* PROBLEM DESCRIPTION:
* On systems with AME (Active Memory Expansion) enabled,
* using any expansion factor (including 1.0), after an LPM
* or Hibernation/Resume is performed from a Power7 to
* Power7+, then a DLPAR CPU add is done, the system may
* crash with the following stack:
*  00022080 abend_trap+000000 ()
*  0011EF0C vm_cmem_get_cop_prop+00028C (??, ??)
*  00129708 vm_cmem_prep_hw_assist+000148 ()
*  001276F8 vm_cmem_dlpar_handler+000098 (??, ??, ??, ??)
*  0023B51C invoke_reconfig_handlers_reentrant+00055C (??,
* ??, ??)
*  006072C8 run_notify+000108 (??, ??)
*  006091E0 _dr_notify+000340 (??, ??, ??, ??)
*  000038A4 mfspurr_sc_flih01+0000E4 ()
*  kdb_get_virtual_memory  no real storage @ 2FF22868
*  1000C964 1000C964 ()
****************************************************************
* RECOMMENDATION:
* Install APAR IV47394.
* Prior to fix availability, an interim fix is available from
* ftp://public.dhe.ibm.com/aix/ifixes/iv47394/
****************************************************************

Problem conclusion

  • The AME dr event handler needs to be configured with the
right events.

Temporary fix

  • *********
* HIPER *
*********

Comments

  • 



APAR Information




    

  • APAR number
    IV47394
    • 

  • Reported component name
    AIX 610 STD EDI
    • 

  • Reported component ID
    5765G6200
    • 

  • Reported release
    610
    • 

  • Status
    CLOSED  PER
    • 

  • PE
    YesPE
    • 

  • HIPER
    YesHIPER
    • 

  • Submitted date
    2013-08-21
    • 

  • Closed date
    2013-08-21
    • 

  • Last modified date
    2014-02-17
    • 





    

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

    
IV46246
    

    • 

  • 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  U859536
       UP14/02/17  I  1000  ®
    • 



PTF to Fileset Mapping








      
              
                            

              

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Document Information


            

            


                        

            Modified date:
            

            17 February 2014
            

            
                      

        


        

        


      

    

  



    

  

  
    
            

          
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