netdev - Re: [BUG net-next-2.6] Had to revert bonding: allow arp_ip_targets on separate vlans to use arp validation

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Date:	Wed, 06 Jan 2010 22:34:05 +0100
From:	Eric Dumazet <eric.dumazet@...il.com>
To:	Jay Vosburgh <fubar@...ibm.com>
CC:	Tom Herbert <therbert@...gle.com>,
	David Miller <davem@...emloft.net>,
	Linux Netdev List <netdev@...r.kernel.org>,
	Andy Gospodarek <andy@...yhouse.net>
Subject: Re: [BUG net-next-2.6] Had to revert bonding: allow arp_ip_targets
 on separate vlans to use arp validation

Le 06/01/2010 22:28, Jay Vosburgh a écrit :
> Eric Dumazet <eric.dumazet@...il.com> wrote:
> 
>> Le 06/01/2010 19:38, Eric Dumazet a écrit :
>>>
>>> (net-next-2.6 doesnt work well on my bond/vlan setup, I suspect I need a bisection)
>>
>> David, I had to revert 1f3c8804acba841b5573b953f5560d2683d2db0d
>> (bonding: allow arp_ip_targets on separate vlans to use arp validation)
>>
>> Or else, my vlan devices dont work (unfortunatly I dont have much time
>> these days to debug the thing)
>>
>> My config :
>>
>>              +---------+
>> vlan.103 -----+ bond0   +--- eth1 (bnx2)
>>              |         +
>> vlan.825 -----+         +--- eth2 (tg3)
>>              +---------+
> 
> 	I'm looking into this right now; I'm seeing what I suspect is
> the same thing: the ARP traffic for the probes is processed, and the
> bonding slaves are marked up, but any other incoming traffic on the VLAN
> is dropped.  It might be that just the incoming ARP replies are lost;
> I'm not sure yet.  Tcpdump clearly shows the traffic from the peer
> arriving.
> 
> 	This is the patch we put in last week that worked for Andy, but
> not for me.  Earlier versions worked fine, so this might be something in
> the last version.  With Eric now having issues, perhaps this isn't just
> my problem.  Perhaps there's some difference in our configurations that
> differs from what Andy has.
> 

Before going to sleep, I can confirm ARP traffic was going out/coming in, but ARP
table entries stay in incomplete state. 

I just had the time to try one single revert (no time for a bisect), and this commit
was an obvious candidate :)

Thanks
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