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IV65836: ENTSTAT/NMON DEGRADES OPEN ADAPTERS RESPONSE TIMES. 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

  • Adapters using the lncentdd driver can experience delays
    in network traffic when nmon and/or entstat/netstat is
    run.
    
    This delay can occur even if the nmon is restricted to
    adapters in use by an interface.
    

Local fix

  • Disable the nmon/topas or netstat/entstat on adapters
    using the lncentdd driver.
    .
    To determine if an adapter uses this driver:
    
    # lsdev -Cl ent0
    ent0 Available 02-00 PCIe2 10GbE SFP+ SR 4-port Converged
    Network Adapter (df1020e214100f04)
    
    # lsdev -Cl ent0 -F  DvDr
    pci/lncentdd
    

Problem summary

  • Delays in network traffic may be observed when nmom/entstat
    is run on ENOH adapter.
    

Problem conclusion

  • Code changed to reduce the delay interval used for polling
    the mailbox ready bit.
    

Temporary fix

Comments

  • 6100-08 - use AIX APAR IV70077
    6100-09 - use AIX APAR IV65286
    7100-02 - use AIX APAR IV70371
    7100-03 - use AIX APAR IV65836
    

APAR Information

  • APAR number

    IV65836

  • Reported component name

    AIX V7.1

  • Reported component ID

    5765H4000

  • Reported release

    710

  • Status

    CLOSED PER

  • PE

    NoPE

  • HIPER

    NoHIPER

  • Submitted date

    2014-10-14

  • Closed date

    2014-10-14

  • Last modified date

    2015-09-30

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

    IV65286

  • 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 U865705

       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 #: IV65836

Modified date: 30 September 2015