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IV70359: ALLOCP RUNNING FOR A LONG TIME APPLIES TO AIX 7100-02

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

  • allocp called by extendlv needs moe than an hour
    to complete/return in case the LV to be extended
    has 1000000 LPs.
    

Local fix

  • None, just wait. Use the -L flag on lsvg, lslv, etc.
    commands to get not blocked by the LVM lock of the VG
    which is taken the by extendlv the whole time.
    

Problem summary

  • allocp, called by extendlv and other LVM commands, can run
    for a very long time on extremely large LVs.  The code to
    read in the LP map of the LV has room for improvement in the
    algorithm that reads it in and stores it in a linked list.
    

Problem conclusion

  • Enhance the algorithm to read in the lvmap so that it can
    do so much quicker in the normal case.
    

Temporary fix

Comments

  • 6100-08 - use AIX APAR IV70033
    6100-09 - use AIX APAR IV69644
    6100-09 - use AIX APAR IV69644
    7100-02 - use AIX APAR IV70359
    7100-03 - use AIX APAR IV69746
    

APAR Information

  • APAR number

    IV70359

  • Reported component name

    AIX V7.1

  • Reported component ID

    5765H4000

  • Reported release

    710

  • Status

    CLOSED PER

  • PE

    NoPE

  • HIPER

    NoHIPER

  • Submitted date

    2015-03-02

  • Closed date

    2015-03-02

  • Last modified date

    2015-09-30

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

    IV69644

  • 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 U867549

       UP15/09/21 I 1000

PTF to Fileset Mapping



Document information

More support for: AIX Enterprise Edition

Software version: 710

Operating system(s): AIX

Reference #: IV70359

Modified date: 30 September 2015