Bug#666386: igb + bnx2 + ifenslave + brctl + vconfig = largely broken

[Josip Rodin <joy@debbugs.entuzijast.net>]

On Sat, Apr 07, 2012 at 04:29:38AM +0100, Ben Hutchings wrote:
> I would like to take this upstream now, but first I need to check
> whether it has already been fixed after 2.6.32.  Please can you test the
> current kernel package from testing, unstable or squeeze-backports
> (linux-image-3.2.0-2-amd64 or linux-image-3.2.0-0.bpo.2-amd64)?

I installed linux-image-3.2.0-0.bpo.2-amd64, plus the upgraded linux-base
and initramfs-tools, plus the indicated firmware-bnx2 upgrade -- and then
rebooted into that kernel, but the machine wouldn't respond to ping over
the xenbr2 interface (the one with the default gateway).

I logged into it fine through the xenbr54 interface, and tried to ping the
default gateway, and it didn't work. This was with the workaround - only
bnx2/eth2 in the bonding interface. Then I removed the default gateway
and added it back just to see if it'll work, and then it started pinging.
Weird.

After that, I tried to reproduce this bug, but failed, it looks like the bug
is fixed there. I noticed a significant lag with some of those bonding
--detach/--change-active actions, but after a few sections everything
continued to work fine.

-- 
     2. That which causes joy or happiness.