From mboxrd@z Thu Jan  1 00:00:00 1970
From: David Miller <davem@davemloft.net>
Subject: Re: atl1: WARNING at net/sched/sch_generic.c:221
Date: Thu, 21 Aug 2008 05:08:57 -0700 (PDT)
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From: adobriyan@gmail.com
Date: Thu, 21 Aug 2008 16:04:09 +0400

> On Thu, Aug 21, 2008 at 04:59:10AM -0700, David Miller wrote:
> > From: adobriyan@gmail.com
> > Date: Thu, 21 Aug 2008 15:58:49 +0400
> > 
> > > This message happens more or less every reboot, sometimes cable unplug/plug is needed
> > > to restore connectivity, otherwise card is working fine.
> > 
> > What kernel version.... no, I can figure it out via osmosis never mind!
> > :-)
> 
> WARN already prints kernel version. ;-)
> 
> [ 2086.052503] Pid: 0, comm: swapper Not tainted 2.6.27-rc4-netns-nf #4
> 						 ^^^^^^^^^^^^^^^^^^^
> 
> And before you ask, "-netns-nf" part doesn't matter, it happens with
> strictly mainline kernels too and started around multiqueue TX changes,
> IIRC.

It's a simple transmit timeout error.

Perhaps atl1 doesn't call netif_carrier_off() in all the places that it
should.