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IJ08410: POSSIBLE NETWORK OUTAGE WITH ADAPTERS USING SHIENTDD DRIVER APPLIES TO AIX 7200-02

A fix is available

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APAR status

  • Closed as program error.

Error description

  • **************************************************************
    * USERS AFFECTED:
    * Systems running the AIX 7200-02 Technology Level
    * with devices.ethernet.shi.rte between and
    * including the 7.2.2.0 and 7.2.2.16 levels.
      **************************************************************
    * ERROR DESCRIPTION:
    * Possible network outage can occur with adapters using the
    * shientdd driver.  The outage may be temporary or may require
    * rebooting the LPAR to recover.
    *
    * Find out if a system has any adapters using an affected
    * driver with lsdev, for example:
    *
    * # lsdev -F "name ddins" | grep shientdd
    * Note: on a VIOS, this must be run as root using
    * 'oem_setup_env'.
    *
    * We have seen this occur when changes occur on the physical
    * network, such as switches restarting or cables becoming
    * disconnected.  When the driver is handling these events, it
    * may incorrectly trigger a livedump of the adapter, causing
    * the adapter to be reset and network traffic through the
    * adapter to cease.  This may be temporary or may require
    * rebooting the LPAR to recover the adapter.
      **************************************************************
    * RECOMMENDATION:
    * Install APAR IJ08410.
    * Prior to fix availability, an interim fix is available from
    * either
    * ftp://aix.software.ibm.com/aix/ifixes/ij08410/
    * https://aix.software.ibm.com/aix/ifixes/ij08410/
    * The ifix can be installed using Live Update (LU).
    * If LU is not used, installation of the ifix requires a
    * reboot.
      **************************************************************
    

Local fix

  • Disable the livedump feature:
    #‌‌ dumpctrl ldmpoff -P
    #‌‌ bosboot -a
    #‌‌ shutdown -Fr
    

Problem summary

  • shientdd driver takes adapter livedumps and logs permanent
    error SHIENT_SW_ERR in the errpt.
    

Problem conclusion

  • Modified the code which was wrongly triggering the livedump.
    

Temporary fix

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

Comments

APAR Information

  • APAR number

    IJ08410

  • Reported component name

    VIRTUAL I/O SER

  • Reported component ID

    5765G3400

  • Reported release

    720

  • Status

    CLOSED PER

  • PE

    YesPE

  • HIPER

    YesHIPER

  • Submitted date

    2018-08-13

  • Closed date

    2019-01-28

  • Last modified date

    2019-11-14

Fix information

  • Fixed component name

    AIX V7.2

  • Fixed component ID

    5765CD200

Applicable component levels

PTF to Fileset Mapping

[{"Business Unit":{"code":"BU058","label":"IBM Infrastructure w\/TPS"},"Product":{"code":"SSVEF8","label":"AIX 7.2 Enterprise Edition"},"Component":"","ARM Category":[],"Platform":[{"code":"PF025","label":"Platform Independent"}],"Version":"720","Edition":"","Line of Business":{"code":"LOB08","label":"Cognitive Systems"}},{"Business Unit":{"code":"BU054","label":"Systems w\/TPS"},"Product":{"code":"SG11S","label":"AIX 7.2 HIPERS, APARs and Fixes"},"Component":"","ARM Category":[],"Platform":[{"code":"PF025","label":"Platform Independent"}],"Version":"720","Edition":"","Line of Business":{"code":"","label":""}}]

Document Information

Modified date:
14 November 2019