IJ08785: POSSIBLE NETWORK OUTAGE WITH ADAPTERS USING SHIENTDD DRIVER

APAR status

• Closed as fixed if next.

Error description

• **************************************************************
  * USERS AFFECTED:
  * Systems running the AIX 7200-00 Technology Level
  * with devices.ethernet.shi.rte at the 7.2.0.6 level.
    **************************************************************
  * 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:
  * An interim fix is available from either
  * ftp://aix.software.ibm.com/aix/ifixes/ij08785/
  * https://aix.software.ibm.com/aix/ifixes/ij08785/
  * 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

Temporary fix

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

Comments

• This APAR is being closed FIN. This means that a solution to
  this APAR is expected to be delivered from IBM in a release
  (if any) to be available within the next 24 months.
  

APAR Information

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

  IJ08410

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

Fix information

• Fixed component name

  AIX V7.2

• Fixed component ID

  5765CD200

Applicable component levels