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Date:      Wed, 11 Aug 2010 16:48:17 GMT
From:      Mike Carlson <carlson39@llnl.gov>
To:        freebsd-gnats-submit@FreeBSD.org
Subject:   amd64/149532: igb/ixgb controllers panic on FreeBSD 8.1-RELEASE
Message-ID:  <201008111648.o7BGmHjq068116@www.freebsd.org>
Resent-Message-ID: <201008111650.o7BGo1P6025681@freefall.freebsd.org>

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>Number:         149532
>Category:       amd64
>Synopsis:       igb/ixgb controllers panic on FreeBSD 8.1-RELEASE
>Confidential:   no
>Severity:       critical
>Priority:       high
>Responsible:    freebsd-amd64
>State:          open
>Quarter:        
>Keywords:       
>Date-Required:
>Class:          sw-bug
>Submitter-Id:   current-users
>Arrival-Date:   Wed Aug 11 16:50:01 UTC 2010
>Closed-Date:
>Last-Modified:
>Originator:     Mike Carlson
>Release:        8.1-RELEASE
>Organization:
Lawrence Livermore National Lab
>Environment:
paper: uname -a
FreeBSD paper.llnl.gov 8.1-RELEASE FreeBSD 8.1-RELEASE #1: Tue Aug 10 15:26:51 PDT 2010     root@paper:/usr/obj/usr/src/sys/GENERIC  amd64


>Description:
I have a Dell R710 with a 4 Port Intel 1000 ethernet controller using the igb driver:

# pciconf -lv
igb0@pci0:7:0:0:	class=0x020000 card=0xa02c8086 chip=0x10e88086 rev=0x01 hdr=0x00
    vendor     = 'Intel Corporation'
    device     = 'Unknown (Unknown)'
    class      = network
    subclass   = ethernet
igb1@pci0:7:0:1:	class=0x020000 card=0xa02c8086 chip=0x10e88086 rev=0x01 hdr=0x00
    vendor     = 'Intel Corporation'
    device     = 'Unknown (Unknown)'
    class      = network
    subclass   = ethernet
igb2@pci0:8:0:0:	class=0x020000 card=0xa02c8086 chip=0x10e88086 rev=0x01 hdr=0x00
    vendor     = 'Intel Corporation'
    device     = 'Unknown (Unknown)'
    class      = network
    subclass   = ethernet
igb3@pci0:8:0:1:	class=0x020000 card=0xa02c8086 chip=0x10e88086 rev=0x01 hdr=0x00
    vendor     = 'Intel Corporation'
    device     = 'Unknown (Unknown)'
    class      = network
    subclass   = ethernet

# sysctl -a|grep igb0
dev.igb.0.%desc: Intel(R) PRO/1000 Network Connection version - 1.9.5
dev.igb.0.%driver: igb
dev.igb.0.%location: slot=0 function=0
dev.igb.0.%pnpinfo: vendor=0x8086 device=0x10e8 subvendor=0x8086 subdevice=0xa02c class=0x020000
dev.igb.0.%parent: pci7
dev.igb.0.debug: -1
dev.igb.0.stats: -1
dev.igb.0.flow_control: 3
dev.igb.0.enable_aim: 1
dev.igb.0.rx_processing_limit: 100

I also have an Intel 10Gb controller (ix0) using the ixgb driver:

ix0@pci0:6:0:0:	class=0x020000 card=0xa06f8086 chip=0x10f48086 rev=0x01 hdr=0x00
    vendor     = 'Intel Corporation'
    class      = network
    subclass   = ethernet

As soon as I upgraded (using freebsd-update upgrade -r 8.1-RELEASE), and booted into the new kernel, the system panics after the network startup script runs. If the nic's are not assigned an ip address and left un-configured, no panic occurs.

I don't have a camera, or a serial console to capture the panic, however, it looks strikingly similar to this users post:
http://lists.freebsd.org/pipermail/freebsd-current/2009-November/013222.html
>How-To-Repeat:
on a 8.1-RELEASE amd64 system with a intel (igb/ixgb) device:

ifconfig igb0 inet 192.168.2.1 netmask 255.255.255.0


>Fix:


>Release-Note:
>Audit-Trail:
>Unformatted:



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