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IV62371: wrong current ioo value for iodone_distr_disable tunable APPLIES TO AIX 7100-03

A fix is available

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APAR status

  • Closed as program error.

Error description

  • #ioo -r -o iodone_distr_disable=1
    after setting the value using above command and after the
    reboot, it suppose to set the value to 1, instead ioo
    display it's value as
    #ioo -o iodone_distr_disable
    iodone_distr_disable = 0
    
    similarly the tunable vmm_klock_mode:
    #vmo -r -o vmm_klock_mode=1
    after setting the value using above command and after the
    reboot, it suppose to set the value to 1, instead vmo
    display it's value as 0
    #vmo -o vmm_klock_mode
    vmm_klock_mode = 0
    

Local fix

  • The value of the tunable iodone_distr_disable is set to
    the correct value inside the kernel, so no functional
    issue.
    

Problem summary

  • ****************************************************************
    * USERS AFFECTED:
    * Systems running the 7100-03 Technology Level with the
    * bos.mp64 fileset at or between 7.1.3.0 and 7.1.3.17
    ****************************************************************
    * PROBLEM DESCRIPTION:
    * #ioo -r -o iodone_distr_disable=1
    * after setting the value using above command and after the
    * reboot, it suppose to set the value to 1, instead ioo
    * display it's value as
    * #ioo -o iodone_distr_disable
    * iodone_distr_disable = 0
    * similarly the tunable vmm_klock_mode:
    * #vmo -r -o vmm_klock_mode=1
    * after setting the value using above command and after the
    * reboot, it suppose to set the value to 1, instead vmo
    * display it's value as 0
    * #vmo -o vmm_klock_mode
    * vmm_klock_mode = 0
    ****************************************************************
    * RECOMMENDATION:
    * Install APAR IV62371.
    ****************************************************************
    

Problem conclusion

  • Use the value of the kernel variable directly to set the
    current value during initialization.
    

Temporary fix

Comments

  • 7100-03 - use AIX APAR IV62371
    

APAR Information

  • APAR number

    IV62371

  • Reported component name

    AIX V7.1

  • Reported component ID

    5765H4000

  • Reported release

    710

  • Status

    CLOSED PER

  • PE

    YesPE

  • HIPER

    NoHIPER

  • Submitted date

    2014-07-10

  • Closed date

    2014-08-08

  • Last modified date

    2016-05-11

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

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

    IV63485

Fix information

  • Fixed component name

    AIX V7.1

  • Fixed component ID

    5765H4000

Applicable component levels

  • R710 PSY U865837

       UP15/05/19 I 1000 Ø

PTF to Fileset Mapping

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Document Information

Modified date:
11 May 2016