[Bridge] Re: [2.4.22] bad interaction between e100 and bridge: BUG at dev.c:991!

[Stephen Hemminger <shemminger@osdl.org>]

On Wed, 3 Sep 2003 16:56:06 +0200
Hannes Schulz <schulz@schwaar.com> wrote:

> >Could the problem be that the e100 can do IP receive checksumming on 
> >the board,
> >but the eepro driver doesn't enable it.  When the board is doing checksum
> >offload, then the csum field isn't set.
> >
> >Please try disabling receive checksumming on the e100 driver
> >
> >	modprobe e100 XsumRX=0
> >
> >If this is the problem, it exists both 2.4 and 2.6.
> 
> If have just booted into 2.6.0-test4. Unplugging works, but the 
> console is flooded with:
> last-F IN=br0 OUT=br0 PHYSIN=eth1 PHYSOUT=eth0 SRC=10.96.96.25 DST=10.96.96.255
> 
> [last-F ist the last rule in my FORWARDING iptable and does log+drop]
> 
> Obviously I must allow forwarding br0 <=> br0.
> 
> While I am writing this the counter on the FORWARDING rule -i br0 -o 
> br0 -j ACCEPT has reaches 2000+ packets with eth0 unplugged and the 
> kernel ist still running.
> 
> 
> In both 2.4.22 and 2.6.0-test4 all of netfilter and advanced routing 
> ist set to M. In 2.6.0-test4 this includes ebtables.
> 
> 
> Hope that helps
> 
> Hannes

You enabled NETFILTER_DEBUG in your config