From owner-freebsd-net@FreeBSD.ORG  Tue Apr 29 18:46:38 2008
Return-Path: <owner-freebsd-net@FreeBSD.ORG>
Delivered-To: freebsd-net@hub.freebsd.org
Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34])
	by hub.freebsd.org (Postfix) with ESMTP id BD360106567A;
	Tue, 29 Apr 2008 18:46:38 +0000 (UTC)
	(envelope-from gavin@FreeBSD.org)
Received: from freefall.freebsd.org (freefall.freebsd.org
	[IPv6:2001:4f8:fff6::28])
	by mx1.freebsd.org (Postfix) with ESMTP id 7AE428FC12;
	Tue, 29 Apr 2008 18:46:38 +0000 (UTC)
	(envelope-from gavin@FreeBSD.org)
Received: from freefall.freebsd.org (gavin@localhost [127.0.0.1])
	by freefall.freebsd.org (8.14.2/8.14.2) with ESMTP id m3TIkcmC030413;
	Tue, 29 Apr 2008 18:46:38 GMT
	(envelope-from gavin@freefall.freebsd.org)
Received: (from gavin@localhost)
	by freefall.freebsd.org (8.14.2/8.14.1/Submit) id m3TIkcxj030409;
	Tue, 29 Apr 2008 18:46:38 GMT (envelope-from gavin)
Date: Tue, 29 Apr 2008 18:46:38 GMT
Message-Id: <200804291846.m3TIkcxj030409@freefall.freebsd.org>
To: gavin@FreeBSD.org, freebsd-net@FreeBSD.org, gavin@FreeBSD.org
From: gavin@FreeBSD.org
Cc: 
Subject: Re: kern/123166: [re] CARP messages filtered by Realtek driver on >
	6.2 (regression)
X-BeenThere: freebsd-net@freebsd.org
X-Mailman-Version: 2.1.5
Precedence: list
List-Id: Networking and TCP/IP with FreeBSD <freebsd-net.freebsd.org>
List-Unsubscribe: <http://lists.freebsd.org/mailman/listinfo/freebsd-net>,
	<mailto:freebsd-net-request@freebsd.org?subject=unsubscribe>
List-Archive: <http://lists.freebsd.org/pipermail/freebsd-net>
List-Post: <mailto:freebsd-net@freebsd.org>
List-Help: <mailto:freebsd-net-request@freebsd.org?subject=help>
List-Subscribe: <http://lists.freebsd.org/mailman/listinfo/freebsd-net>,
	<mailto:freebsd-net-request@freebsd.org?subject=subscribe>
X-List-Received-Date: Tue, 29 Apr 2008 18:46:38 -0000

Synopsis: [re] CARP messages filtered by Realtek driver on > 6.2 (regression)

Responsible-Changed-From-To: freebsd-net->gavin
Responsible-Changed-By: gavin
Responsible-Changed-When: Tue Apr 29 18:13:53 UTC 2008
Responsible-Changed-Why: 
I'll try and get further info from the submitter.

To submitter:  Firstly, does "ifconfig re0 promisc" make any
difference?

Secondly, you could try getting the most recent versions of
the driver files from:
http://www.freebsd.org/cgi/cvsweb.cgi/~checkout~/src/sys/dev/re/if_re.c?rev=1.46.2.39;content-type=text%2Fplain
http://www.freebsd.org/cgi/cvsweb.cgi/~checkout~/src/sys/pci/if_rlreg.h?rev=1.51.2.13;content-type=text%2Fplain

put the first into /usr/src/sys/dev/re and the second into
/usr/src/sys/pci, recompile the kernel and test.

Thirdly, if that hasn't fixed it, we need to establish when the
breakage happened.  The easiest way is to try different kernels
(you shouldn't need to recompile the userland for this), and
basically try to establish when the breakage was introduced to
6.x.  Assuming you are using csup or cvsup to update your
system, add the following line:

*default date=2007.07.14.00.00.00

Then csup will bring sources down as they were on the 1st of August.
Recompile, and see if CARP still works with that kernel.  If so,
move the date forward, and if not, go backwards in time.  Some
useful dates to try will probably be:

2007.02.01.00.00.00
2007.04.20.00.00.00
2007.05.01.00.00.00
2007.08.01.00.00.00
2007.09.20.00.00.00
2007.12.01.00.00.00

i.e. in the worst case, you may have to recompile your kernel three
times to figure out between which of the above dates the breakage occured.

(For reference, 6.2 was released on 2007.01.15, with 6.3 on 2008.01.18)


http://www.freebsd.org/cgi/query-pr.cgi?pr=123166