netdev - Re: 3.0.0rc6: ethtool not working without a cable

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Message-ID: <1309971146.6217.0.camel@jbrandeb-mobl.amr.corp.intel.com>
Date:	Wed, 6 Jul 2011 09:52:25 -0700
From:	"Brandeburg, Jesse" <jesse.brandeburg@...el.com>
To:	Ben Hutchings <bhutchings@...arflare.com>
CC:	Arkadiusz Miskiewicz <a.miskiewicz@...il.com>,
	"netdev@...r.kernel.org" <netdev@...r.kernel.org>,
	e1000-devel <e1000-devel@...ts.sourceforge.net>
Subject: Re: 3.0.0rc6: ethtool not working without a cable

On Wed, 2011-07-06 at 08:26 -0700, Ben Hutchings wrote:
> On Wed, 2011-07-06 at 16:53 +0200, Arkadiusz Miskiewicz wrote:
> > On Wednesday 06 of July 2011, Ben Hutchings wrote:
> > > On Wed, 2011-07-06 at 13:38 +0200, Arkadiusz Miskiewicz wrote:
> > > > 3.0.0rc6, thinkpad t400 notebook.
> > > > 
> > > > If there is no cable then ethtool reports no device. It wasn't that
> > > > before AFAIK.
> > > > 
> > > > ethtool version 2.6.36

snip

> Then the only other explanation I can think of is that the driver has
> 'detached' the device due to some kind of error.  The ethtool core does
> have a check for that.

could it be that aspm is enabled or that you've enabled runtime power
management?