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IV56498: forktree serialization issue with pinned pages APPLIES TO AIX 7100-03

A fix is available

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You can track all active APARs for this component.

APAR status

  • Closed as program error.

Error description

  • System can crash with the following stack trace:-
    
    CRASH INFORMATION:
    CPU 0 CSA F1000815B002BD00 at time of crash,
    error code for LEDs: 70000000
    pvthread+05AE00 STACK:
    [0001BF60]abend_trap+000000 ()
    [000F8BE0]v_freescb+001260 (??, ??)
    [0027367C]v_freewseg+0003DC (??, ??)
    [0005F05C].backt+000100 ()
    [0005EF5C].backt+000000 ()
    [0027A8A0]vm_inherit+0001E0 (??, ??, ??)
    [005CD0A8]vms_deletew+0002E8 (??, ??, ??)
    [005CD990]vms_deletex+0001B0 (??, ??)
    [005CDE4C]vms_delete+0001EC (??)
    [0069D2F0]shmfreews+000210 ()
    [0043E2F4]execvex_common+001654 (??, ??, ??, ??, ??)
    [00441DBC]execve+0000A8 ()
    [00003888]mfspurr_sc_flih01+0000E4 ()
    [kdb_get_virtual_memory] no real storage @
    7000000CE3FBAD0
    [9000000001E5780]09000000001E5780 ()
    [kdb_read_mem] no real storage @ FFFFFFFFFFF5BA0
    

Local fix

  • N/A
    

Problem summary

  • A crash in v_freescb().
    

Problem conclusion

  • Correctly serialize in two known problematic paths - disclaim
    and plock.
    

Temporary fix

Comments

APAR Information

  • APAR number

    IV56498

  • Reported component name

    AIX V7.1

  • Reported component ID

    5765H4000

  • Reported release

    710

  • Status

    CLOSED PER

  • PE

    NoPE

  • HIPER

    NoHIPER

  • Submitted date

    2014-03-10

  • Closed date

    2014-03-10

  • Last modified date

    2014-08-14

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

    IV52047

  • 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 U858978

       UP14/05/22 I 1000

PTF to Fileset Mapping



Document information

More support for: AIX Enterprise Edition

Software version: 710

Operating system(s): AIX

Reference #: IV56498

Modified date: 14 August 2014