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

A fix is available

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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