IBM Support

IV66353: MLXENTDD: ECH_MAIN_CHAN_FAIL OBSERVED AT BOOT TIME APPLIES TO AIX 7100-03

A fix is available

Subscribe

You can track all active APARs for this component.

APAR status

  • Closed as program error.

Error description

  • ECH_MAIN_CHAN_FAIL will be observed in the error log at
    boot time when mlxentdd is the driver for the real
    adapters used by the etherchannel.
    
    Note that the ECH_MAIN_CHAN_FAIL at boot time may
    actually
    be valid.
    
    When the etherchannel is configured, it sets a call back
    function in the real adapter's driver.  The call to set
    the call back function can return three values: an error,
    an indicating that the call worked and the state of the
    link is presently known, and an indication that the
    call worked but the state of the link is currently not
    known (e.g. when the real adapter is first opened).  The
    mlxentdd was not utilizing the third alternative.
    
    If the state of the link is known and the link is
    currently
    down, then the user will see the ECH_MAIN_CHAN_FAIL
    error message even if the link becomes up shortly after
    the configuration process.
    

Local fix

Problem summary

  • ECH_MAIN_CHAN_FAIL may be observed in the error log at
    boot time for Etherchannel configured on devices using
    mlxentdd driver.
    

Problem conclusion

  • Code changed to handle the condition where the link state is
    not known when Etherchannel gets configured.
    

Temporary fix

Comments

  • 6100-08 - use AIX APAR IV70714
    7100-02 - use AIX APAR IV70372
    7100-03 - use AIX APAR IV66353
    

APAR Information

  • APAR number

    IV66353

  • Reported component name

    AIX V7.1

  • Reported component ID

    5765H4000

  • Reported release

    710

  • Status

    CLOSED PER

  • PE

    NoPE

  • HIPER

    NoHIPER

  • Submitted date

    2014-10-28

  • Closed date

    2014-10-28

  • Last modified date

    2015-12-31

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

    IV65520

  • 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 U865812

       UP15/05/19 I 1000

PTF to Fileset Mapping



Document information

More support for: AIX Enterprise Edition

Software version: 710

Operating system(s): AIX

Reference #: IV66353

Modified date: 31 December 2015