From owner-freebsd-current@FreeBSD.ORG  Thu Jan 19 01:25:40 2012
Return-Path: <owner-freebsd-current@FreeBSD.ORG>
Delivered-To: current@freebsd.org
Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34])
	by hub.freebsd.org (Postfix) with ESMTP id CC0A3106564A
	for <current@freebsd.org>; Thu, 19 Jan 2012 01:25:40 +0000 (UTC)
	(envelope-from pyunyh@gmail.com)
Received: from mail-tul01m020-f182.google.com (mail-tul01m020-f182.google.com
	[209.85.214.182])
	by mx1.freebsd.org (Postfix) with ESMTP id 946368FC14
	for <current@freebsd.org>; Thu, 19 Jan 2012 01:25:40 +0000 (UTC)
Received: by obcwo16 with SMTP id wo16so6378958obc.13
	for <current@freebsd.org>; Wed, 18 Jan 2012 17:25:40 -0800 (PST)
DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=gamma;
	h=from:date:to:cc:subject:message-id:reply-to:references:mime-version
	:content-type:content-disposition:in-reply-to:user-agent;
	bh=zVtPJpHXIgELeF77ZLV+C5pANUnXqOBle6691snIYos=;
	b=ZsuiiTFrBlL0UgavlwdHfoB80eeTCMy882joCJivZ9HE3xl0I0ru650ePA4s5FIF5e
	F889dSs6nxBpR0V9YOP1Ct5yvxZ/yPIUCN4KdwFVJ42xm8ihec7uK0z1g39L/rE/mlEw
	zDebv7zfYTgt/11gJCQXG43Oj7lhsy/J+4fCQ=
Received: by 10.50.207.72 with SMTP id lu8mr24995150igc.0.1326934499764;
	Wed, 18 Jan 2012 16:54:59 -0800 (PST)
Received: from pyunyh@gmail.com ([174.35.1.224])
	by mx.google.com with ESMTPS id r18sm94788289ibh.4.2012.01.18.16.54.57
	(version=TLSv1/SSLv3 cipher=OTHER);
	Wed, 18 Jan 2012 16:54:59 -0800 (PST)
Received: by pyunyh@gmail.com (sSMTP sendmail emulation);
	Wed, 18 Jan 2012 16:54:57 -0800
From: YongHyeon PYUN <pyunyh@gmail.com>
Date: Wed, 18 Jan 2012 16:54:57 -0800
To: Michael Butler <imb@protected-networks.net>
Message-ID: <20120119005457.GE7469@michelle.cdnetworks.com>
References: <4F174C4F.2010302@protected-networks.net>
Mime-Version: 1.0
Content-Type: text/plain; charset=us-ascii
Content-Disposition: inline
In-Reply-To: <4F174C4F.2010302@protected-networks.net>
User-Agent: Mutt/1.4.2.3i
Cc: current@freebsd.org
Subject: Re: Intermittent re0 phy failure
X-BeenThere: freebsd-current@freebsd.org
X-Mailman-Version: 2.1.5
Precedence: list
Reply-To: pyunyh@gmail.com
List-Id: Discussions about the use of FreeBSD-current
	<freebsd-current.freebsd.org>
List-Unsubscribe: <http://lists.freebsd.org/mailman/listinfo/freebsd-current>, 
	<mailto:freebsd-current-request@freebsd.org?subject=unsubscribe>
List-Archive: <http://lists.freebsd.org/pipermail/freebsd-current>
List-Post: <mailto:freebsd-current@freebsd.org>
List-Help: <mailto:freebsd-current-request@freebsd.org?subject=help>
List-Subscribe: <http://lists.freebsd.org/mailman/listinfo/freebsd-current>,
	<mailto:freebsd-current-request@freebsd.org?subject=subscribe>
X-List-Received-Date: Thu, 19 Jan 2012 01:25:40 -0000

On Wed, Jan 18, 2012 at 05:48:47PM -0500, Michael Butler wrote:
> At random intervals, when re0 is without any significant load; idle for
> lengthy periods, I see ..
> 
> kernel: re0: PHY read failed
> last message repeated 4 times
> kernel: re0: link state changed to DOWN
> 
> Unplugging the cable and re-inserting is sufficient to restore
> functionality.
> 
> kernel is @ SVN r230276
> 
> Any ideas how to track this down?

Knowing which kind of controller you have would be more helpful.
Show me both re(4)/rgephy(4) related message from dmesg and
'devinfo -rv | grep rgephy' output.