On 07.06.2011 05:33, Brad Campbell wrote:

On 07/06/11 04:10, Bart De Schuymer wrote:

quoted

Hi Brad,

This has probably nothing to do with ebtables, so please rmmod in case
it's loaded.
A few questions I didn't directly see an answer to in the threads I
scanned...
I'm assuming you actually use the bridging firewall functionality. So,
what iptables modules do you use? Can you reduce your iptables rules to
a core that triggers the bug?
Or does it get triggered even with an empty set of firewall rules?
Are you using a stock .35 kernel or is it patched?
Is this something I can trigger on a poor guy's laptop or does it
require specialized hardware (I'm catching up on qemu/kvm...)?

Not specialised hardware as such, I've just not been able to reproduce
it outside of this specific operating scenario.

The last similar problem we've had was related to the 32/64 bit compat
code. Are you running 32 bit userspace on a 64 bit kernel?

I can't trigger it with empty firewall rules as it relies on a DNAT to
occur. If I try it directly to the internal IP address (as I have to
without netfilter loaded) then of course nothing fails.

It's a pain in the bum as a fault, but it's one I can easily reproduce
as long as I use the same set of circumstances.

I'll try using 3.0-rc2 (current git) tonight, and if I can reproduce it
on that then I'll attempt to pare down the IPTABLES rules to a bare
minimum.

It is nothing to do with ebtables as I don't compile it. I'm not really
sure about "bridging firewall" functionality. I just use a couple of
hand coded bash scripts to set the tables up.

From one of your previous mails:

# CONFIG_BRIDGE_NF_EBTABLES is not set

How about CONFIG_BRIDGE_NETFILTER?

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