From owner-freebsd-net@freebsd.org Wed Sep 16 10:53:20 2015 Return-Path: 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 08EB79C2F41 for ; Wed, 16 Sep 2015 10:53:20 +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 6C0E01C18 for ; Wed, 16 Sep 2015 10:53:18 +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 648B714148AB for ; Wed, 16 Sep 2015 12:52:12 +0200 (CEST) Received: from asbach.renzel.net (unknown [172.18.96.1]) by dublin.vkf.isb.de.renzel.net (Postfix) with ESMTP id 45A03603E2 for ; Wed, 16 Sep 2015 12:52:12 +0200 (CEST) From: Nils Beyer Organization: VKF Renzel GmbH Date: Wed, 16 Sep 2015 12:52:11 +0200 User-Agent: KNode/4.14.3 Subject: Re: Multipath TCP for FreeBSD v0.5 To: freebsd-net@freebsd.org References: <55E54846.4020504@swin.edu.au> Lines: 342 MIME-Version: 1.0 X-Virus-Scanned: clamav-milter 0.98 at nijmegen.renzel.net X-Virus-Status: Clean X-Spam-Status: No, score=4.2 required=7.0 tests=DC_IMAGE_SPAM_HTML, DC_IMAGE_SPAM_TEXT,DC_PNG_UNO_LARGO,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 Content-Type: text/plain; charset="ISO-8859-1" Content-Transfer-Encoding: 7Bit X-Content-Filtered-By: Mailman/MimeDel 2.1.20 X-BeenThere: freebsd-net@freebsd.org X-Mailman-Version: 2.1.20 Precedence: list List-Id: Networking and TCP/IP with FreeBSD List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 16 Sep 2015 10:53:20 -0000 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: 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 ; 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 ; 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 ; 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 ; Wed, 16 Sep 2015 13:03:10 +0200 (CEST) Content-Type: text/plain; charset="ISO-8859-1" From: Nils Beyer 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 List-Unsubscribe: , List-Archive: List-Post: List-Help: List-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