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IV64465: VIOS USING NPIV CAN CRASH SYSTEM APPLIES TO AIX 6100-08

A fix is available

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APAR status

  • Closed as program error.

Error description

  • ***************************************************************
    * USERS AFFECTED:
    * Systems running the 6100-08 Technology Level with
    * devices.pciex.df1060e214103404.com between and
    * including the 6.1.8.15 and 6.1.8.19 levels.
    ***************************************************************
    * PROBLEM DESCRIPTION:
    * In a VIOS environment where you have client LPARs using
    NPIV,
    * Emulex FC/FCoe HBA/CNA 10Gb or higher Fibre Channel adapter,
    * and there are SAN/fabric issues for the NPIV-enabled paths,
    * the VIOS may crash if commands needed for error recovery or
    * the fabric login sequence times out.
    *
    * This has typically been seen when an NPIV client is doing
    * fabric operations such as fabric discovery, relogin after a
    * path failure, or dynamic tracking operations.
    *
    * During these operations some fields in the fscsi driver
    * structures may be erroneously cleared.  Later, when the
    * driver attempts to access these fields, it can result in a
    * system crash, hang, or other unexpected failure.
    ***************************************************************
    * RECOMMENDATION:
    * Install APAR IV64465.
    ***************************************************************
    

Local fix

Problem summary

  • ***************************************************************
    * USERS AFFECTED:
    * Systems running the 6100-08 Technology Level with
    * devices.pciex.df1060e214103404.com between and
    * including the 6.1.8.15 and 6.1.8.19 levels.
    ***************************************************************
    * PROBLEM DESCRIPTION:
    * In a VIOS environment where you have client LPARs using
    NPIV,
    * Emulex FC/FCoe HBA/CNA 10Gb or higher Fibre Channel adapter,
    * and there are SAN/fabric issues for the NPIV-enabled paths,
    * the VIOS may crash if commands needed for error recovery or
    * the fabric login sequence times out.
    *
    * This has typically been seen when an NPIV client is doing
    * fabric operations such as fabric discovery, relogin after a
    * path failure, or dynamic tracking operations.
    *
    * During these operations some fields in the fscsi driver
    * structures may be erroneously cleared.  Later, when the
    * driver attempts to access these fields, it can result in a
    * system crash, hang, or other unexpected failure.
    ***************************************************************
    * RECOMMENDATION:
    * Install APAR IV64465.
    ***************************************************************
    

Problem conclusion

  • Re-arranged the code to avoid the crash.
    

Temporary fix

  • *********
    * HIPER *
    *********
    

Comments

  • 6100-08 - use AIX APAR IV64465
    6100-09 - use AIX APAR IV61759
    6100-09 - use AIX APAR IV61759
    7100-02 - use AIX APAR IV64283
    7100-03 - use AIX APAR IV61764
    7100-04 - use AIX APAR IV61771
    

APAR Information

  • APAR number

    IV64465

  • Reported component name

    AIX 610 STD EDI

  • Reported component ID

    5765G6200

  • Reported release

    610

  • Status

    CLOSED PER

  • PE

    NoPE

  • HIPER

    YesHIPER

  • Submitted date

    2014-09-02

  • Closed date

    2014-09-02

  • Last modified date

    2016-05-11

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

    IV61759

  • 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 U867288

       UP15/01/18 I 1000

PTF to Fileset Mapping



Document information

More support for: AIX Standard Edition

Software version: 610

Operating system(s): AIX

Reference #: IV64465

Modified date: 11 May 2016