Skip site navigation (1)Skip section navigation (2)
Date:      Wed, 16 Sep 2015 12:52:11 +0200
From:      Nils Beyer <nbe@renzel.net>
To:        freebsd-net@freebsd.org
Subject:   Re: Multipath TCP for FreeBSD v0.5
References:  <55E54846.4020504@swin.edu.au>

| previous in thread | raw e-mail | index | archive | help
Hi Nigel,

Nigel Williams wrote:
> A new mptcp v0.5 patch is available at
> http://caia.swin.edu.au/urp/newtcp/mptcp/tools.html.

thanks for the new patch. I've tried your provided VirtualBox VM "FB11-test1".

Unfortunately, standard TCP-connections aren't working. For instance, after I
execute:

	fetch -o - 'http://www.google.com'

I get an incomplete transfer that times out after a while. Sometimes I get
a kernel panic (s. attached screenshot).

Then I tried the patch on real hardware (built my own kernel as described).
Same behaviour.

Is it intended that the current implementation is not backwards compatible
to non-MPTCP-connections? If you need any more details, feel free to contact
me...



Regards,
Nils
From owner-freebsd-net@freebsd.org  Wed Sep 16 11:03:13 2015
Return-Path: <owner-freebsd-net@freebsd.org>
Delivered-To: freebsd-net@mailman.ysv.freebsd.org
Received: from mx1.freebsd.org (mx1.freebsd.org
 [IPv6:2001:1900:2254:206a::19:1])
 by mailman.ysv.freebsd.org (Postfix) with ESMTP id 793399CD6FD
 for <freebsd-net@mailman.ysv.freebsd.org>;
 Wed, 16 Sep 2015 11:03:13 +0000 (UTC) (envelope-from nbe@renzel.net)
Received: from nijmegen.renzel.net (mx1.renzel.net [195.243.213.130])
 by mx1.freebsd.org (Postfix) with ESMTP id 4191610C0
 for <freebsd-net@freebsd.org>; Wed, 16 Sep 2015 11:03:12 +0000 (UTC)
 (envelope-from nbe@renzel.net)
Received: from dublin.vkf.isb.de.renzel.net (unknown [10.0.0.80])
 by nijmegen.renzel.net (smtpd) with ESMTP id A8D8A1414877
 for <freebsd-net@freebsd.org>; Wed, 16 Sep 2015 13:03:10 +0200 (CEST)
Received: from asbach.renzel.net (unknown [172.18.96.1])
 by dublin.vkf.isb.de.renzel.net (Postfix) with ESMTP id 9F6A36054E
 for <freebsd-net@freebsd.org>; Wed, 16 Sep 2015 13:03:10 +0200 (CEST)
Content-Type: text/plain; charset="ISO-8859-1"
From: Nils Beyer <nbe@renzel.net>
Organization: VKF Renzel GmbH
Date: Wed, 16 Sep 2015 13:03:10 +0200
User-Agent: KNode/4.14.3
Content-Transfer-Encoding: 7Bit
Subject: Re: Multipath TCP for FreeBSD v0.5
To: freebsd-net@freebsd.org
References: <55E54846.4020504@swin.edu.au>
 <12290.6160344884$1442400817@news.gmane.org>
Lines: 11
MIME-Version: 1.0
X-Virus-Scanned: clamav-milter 0.98 at nijmegen.renzel.net
X-Virus-Status: Clean
X-Spam-Status: No, score=3.2 required=7.0 tests=DNS_FROM_AHBL_RHSBL,
 MISSING_MID,UNPARSEABLE_RELAY autolearn=no version=3.3.2
X-Spam-Level: ***
X-Spam-Checker-Version: SpamAssassin 3.3.2 (2011-06-06) on nijmegen.renzel.net
X-BeenThere: freebsd-net@freebsd.org
X-Mailman-Version: 2.1.20
Precedence: list
List-Id: Networking and TCP/IP with FreeBSD <freebsd-net.freebsd.org>
List-Unsubscribe: <https://lists.freebsd.org/mailman/options/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: <https://lists.freebsd.org/mailman/listinfo/freebsd-net>,
 <mailto:freebsd-net-request@freebsd.org?subject=subscribe>
X-List-Received-Date: Wed, 16 Sep 2015 11:03:13 -0000

I wrote:
> [...] Sometimes I get a kernel panic (s. attached screenshot).

attachment has been stripped. If you need the screenshot or crash dumps, please
let me know then I think about a way to provide them.

As these are VMs you should be able to reconstruct the behaviour as well...



Regards,
Nils



Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?>