misc/151593: Kernel panic when bringing up igb network adapter with MSI-X enabled

Vasily Ivanov caesar at academ.org
Wed Oct 20 05:00:21 UTC 2010


>Number:         151593
>Category:       misc
>Synopsis:       Kernel panic when bringing up igb network adapter with MSI-X enabled
>Confidential:   no
>Severity:       serious
>Priority:       low
>Responsible:    freebsd-bugs
>State:          open
>Quarter:        
>Keywords:       
>Date-Required:
>Class:          sw-bug
>Submitter-Id:   current-users
>Arrival-Date:   Wed Oct 20 05:00:20 UTC 2010
>Closed-Date:
>Last-Modified:
>Originator:     Vasily Ivanov
>Release:        8.1-RELEASE-p1
>Organization:
>Environment:
FreeBSD border-3.academ.org 8.1-RELEASE-p1 FreeBSD 8.1-RELEASE-p1 #0: Sun Oct 17 09:49:21 UTC 2010     root@:/usr/obj/usr/src/sys/border  amd64

>Description:
Shortly after bringing up igb interfaces system panics. Screenshot: http://pix.academ.org/img/2010/10/20/35b6dd863e7099555ed84a616a97f0bb.jpg

This by far happened only with MSI-X enabled (default).

Hardware is SuperMicro X8DTL with dual Xeon X5650 and Intel Pro/1000ET QuadPort.

# dmesg | grep igb0
igb0: <Intel(R) PRO/1000 Network Connection version - 1.9.5> port 0xbc00-0xbc1f mem 0xf97e0000-0xf97fffff,0xf9800000-0xf9bfffff,0xf97dc000-0xf97dffff irq 39 at device 0.0 on pci5
igb0: Using MSIX interrupts with 10 vectors
igb0: [ITHREAD]
igb0: [ITHREAD]
igb0: [ITHREAD]
igb0: [ITHREAD]
igb0: [ITHREAD]
igb0: [ITHREAD]
igb0: [ITHREAD]
igb0: [ITHREAD]
igb0: [ITHREAD]
igb0: [ITHREAD]
igb0: Ethernet address: 00:1b:21:53:ce:38

# pciconf -l | grep igb0
igb0 at pci0:5:0:0:        class=0x020000 card=0xa02b8086 chip=0x10e88086 rev=0x01 hdr=0x00
>How-To-Repeat:
http://www.youtube.com/watch?v=H6xe0CFiZOQ
>Fix:
Turn off MSX-X in /boot/loader.conf : hw.igb.enable_msix=0

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


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