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IV16183: VARYONVG MAY CORE WITH SUPER STRICT MIRROR POOLS ENABLED. APPLIES TO AIX 6100-07

A fix is available

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APAR status

  • Closed as program error.

Error description

  • varyonvg may core with the following stack when mirror
    pool super strictness is enabled.
    
    (dbx) where
    lvm_build_mps(??, ??, ??, ??, ??) at 0xd173a1f4
    lvm_check_async_mirror(??, ??, ??, ??, ??, ??, ??) at
    0xd17444e0
    lvm_varyonvg(??) at 0xd1751940
    main(??, ??) at 0x10000814
    
    Error report will show the following message.
    
    #errpt -a
    ---------------------------------------------------------
    ------------------
    LABEL:          CORE_DUMP
    .......
    CORE FILE NAME
    /var/hacmp/core
    PROGRAM NAME
    varyonvg
    ADDITIONAL INFORMATION
    lvm_build 774
    lvm_build 704
    lvm_check E4
    lvm_varyo 5A4
    main 498
    __start 6C
    

Local fix

  • Disabling the mirror pool super strictness on VG may
    varyon the VG.
    

Problem summary

  • If superstrict mirror pools are enabled, varyonvg may core
    dump with a stack similar to:
    (dbx) where
    lvm_build_mps(??, ??, ??, ??, ??) at 0xd173a1f4
    lvm_check_async_mirror(??, ??, ??, ??, ??, ??, ??) at
    0xd17444e0
    lvm_varyonvg(??) at 0xd1751940
    main(??, ??) at 0x10000814
    

Problem conclusion

  • Remove the offending lvmt entry, since the next lvmt entry
    provides the same information.
    

Temporary fix

Comments

APAR Information

  • APAR number

    IV16183

  • Reported component name

    AIX 610 STD EDI

  • Reported component ID

    5765G6200

  • Reported release

    610

  • Status

    CLOSED PER

  • PE

    NoPE

  • HIPER

    NoHIPER

  • Submitted date

    2012-02-27

  • Closed date

    2012-02-27

  • Last modified date

    2013-02-27

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

    IV14781

  • 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 U839508

       UP12/05/11 I 1000

PTF to Fileset Mapping

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Document Information

Modified date:
27 February 2013