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             AUSCERT External Security Bulletin Redistribution

                        ESB-2008.0258 -- [Solaris]
            Solaris 10 Systems Equipped With e1000g Drivers May
                      Experience Ethernet Link Flaps
                               13 March 2008

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        AusCERT Security Bulletin Summary
        ---------------------------------

Product:              e1000g driver
                      Intel Gigabit 82571EB chipset
Publisher:            Sun Microsystems
Operating System:     Solaris 10
Impact:               Denial of Service

Original Bulletin:  
  http://sunsolve.sun.com/search/document.do?assetkey=1-66-201226-1

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Solution Type: Sun Alert
   Solution  201226 :   Solaris 10 Systems Equipped With e1000g Drivers
   for Intel 82571EB Chipset Based Intel Gigabit Ethernet Controllers May
   Experience Ethernet Link Flaps          
   Previously Published As: 103198

   Bug ID: 6531842

   Product
Solaris 10 Operating System

   Date of Resolved Release: 09-JAN-2008

   SA Document Body
Solaris 10 systems that have e1000g as the driver for Intel Gigabit 82571EB 
chipset based NICs  ... see below:

   1. Impact

   Solaris 10 systems that have e1000g as the driver for Intel Gigabit
   82571EB chipset based NICs may experience Ethernet link flaps.
   2. Contributing Factors

   This issue can occur in the following releases:

   SPARC Platform
     * Solaris 10 without patch 128028-03

   x86 Platform
     * Solaris 10 without patch 128029-04

   Note: Solaris 8 and Solaris 9 are not impacted by this issue.

   This issue only impacts systems that are using the e1000g driver for
   the Intel Gigabit 82571EB chipset based NICs. To determine if a system
   is equipped with the 82571EB chipset based Intel Gigabit NIC, the
   following command can be used:
    $ prtconf -pv | grep "8086,105e"

   To determine if a system is equipped with e1000g plumbed interfaces,
   the following command can be used:
    $ ifconfig -a | grep e1000g

   3. Symptoms

   If the described issue occurs, networking applications may fail due to
   Ethernet link flaps. In some cases, the link goes down and comes up on
   its own. However, it is possible for the link to go down and not come
   back up. In such cases, a manual reboot may be required.

   At the time of link flaps, messages similar to the following may
   appear in the "/var/adm/messages" file:
    NOTICE: pciex8086,105e - e1000g : Adapter copper link is down.
    [ID 801593 kern.notice] NOTICE: pciex8086,105e - e1000g : Adapter 
    100Mbps full duplex copper link is up.

   4. Workaround

   There is no workaround for this issue. Please see the "Resolution"
   section below.
   5. Resolution

   This issue is addressed in the following releases:

   SPARC Platform
     * Solaris 10 with patch 128028-03 or later

   x86 Platform
     * Solaris 10 with patch 128029-04 or later

   Modification History
11-Mar-08: modification to Contributing Factors

   Attachments
This solution has no attachment

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