Bug#852941: kernel oops in module igb

[Anton Gorlov <stalker@locum.ru>]

Package: linux-image-4.9.0-1-amd64
Version: 4.9.2-2


When i boot server . based on

Manufacturer: Supermicro
Product Name: X8DTU

I get kernel oops on module igb after port on cisco get forward state
interface GigabitEthernet1/0/15
 description 2Manganum_SRV
 switchport trunk encapsulation dot1q
 switchport trunk allowed vlan 12,15,20
 switchport mode trunk
 spanning-tree portfast
end

network settings on server is

cat /etc/network/interfaces
# This file describes the network interfaces available on your system
# and how to activate them. For more information, see interfaces(5).

source /etc/network/interfaces.d/*

# The loopback network interface
auto lo
iface lo inet loopback

auto eth0
        iface eth0 inet manual
        pre-up /sbin/ethtool --pause $IFACE autoneg off rx off tx off



auto eth1
        iface eth1 inet manual
        pre-up /sbin/ethtool --pause $IFACE autoneg off rx off tx off


auto eth1.20
        iface eth1.20 inet manual



auto br0
        iface br0 inet manual
        bridge_ports eth0
        bridge_stp off       # disable Spanning Tree Protocol
        bridge_waitport 0    # no delay before a port becomes available
        bridge_fd 0          # no forwarding delay

auto br1
        iface br1 inet static
        address 192.168.0.25
        netmask 255.255.255.0
        gateway 192.168.0.11
        bridge_ports eth1.20
        bridge_stp off       # disable Spanning Tree Protocol
        bridge_waitport 0    # no delay before a port becomes available
        bridge_fd 0          # forwarding delay


if I set bridge_fd 10 for br1  or booting with kdump, or use module igb
from intel.com (igb-5.3.5.4.tar.gz) oops is not reproduced.

Debian 9 test install