From owner-svn-src-stable-11@freebsd.org Wed Aug 24 09:21:51 2016 Return-Path: Delivered-To: svn-src-stable-11@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 4FA2FBC13ED; Wed, 24 Aug 2016 09:21:51 +0000 (UTC) (envelope-from freebsd@omnilan.de) Received: from mx0.gentlemail.de (mx0.gentlemail.de [IPv6:2a00:e10:2800::a130]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (Client did not present a certificate) by mx1.freebsd.org (Postfix) with ESMTPS id C43701520; Wed, 24 Aug 2016 09:21:50 +0000 (UTC) (envelope-from freebsd@omnilan.de) Received: from mh0.gentlemail.de (mh0.gentlemail.de [78.138.80.135]) by mx0.gentlemail.de (8.14.5/8.14.5) with ESMTP id u7O9LnJk060138; Wed, 24 Aug 2016 11:21:49 +0200 (CEST) (envelope-from freebsd@omnilan.de) Received: from titan.inop.mo1.omnilan.net (titan.inop.mo1.omnilan.net [IPv6:2001:a60:f0bb:1::3:1]) (using TLSv1 with cipher ECDHE-RSA-AES256-SHA (256/256 bits)) (No client certificate requested) by mh0.gentlemail.de (Postfix) with ESMTPSA id 9EE94299; Wed, 24 Aug 2016 11:21:48 +0200 (CEST) Message-ID: <57BD672C.5010108@omnilan.de> Date: Wed, 24 Aug 2016 11:21:48 +0200 From: Harry Schmalzbauer Organization: OmniLAN User-Agent: Mozilla/5.0 (X11; U; FreeBSD i386; de-DE; rv:1.9.2.8) Gecko/20100906 Lightning/1.0b2 Thunderbird/3.1.2 MIME-Version: 1.0 To: Alexander Motin CC: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-stable@freebsd.org, svn-src-stable-11@freebsd.org Subject: Re: svn commit: r304426 - stable/11/sys/net References: <201608181208.u7IC8dYZ058543@repo.freebsd.org> <57BD5E0F.8000205@omnilan.de> In-Reply-To: Content-Type: text/plain; charset=windows-1252 Content-Transfer-Encoding: 8bit X-Greylist: ACL 119 matched, not delayed by milter-greylist-4.2.7 (mx0.gentlemail.de [78.138.80.130]); Wed, 24 Aug 2016 11:21:49 +0200 (CEST) X-Milter: Spamilter (Reciever: mx0.gentlemail.de; Sender-ip: 78.138.80.135; Sender-helo: mh0.gentlemail.de; ) X-BeenThere: svn-src-stable-11@freebsd.org X-Mailman-Version: 2.1.22 Precedence: list List-Id: SVN commit messages for only the 11-stable src tree List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 24 Aug 2016 09:21:51 -0000 Bezüglich Alexander Motin's Nachricht vom 24.08.2016 11:02 (localtime): > On 24.08.16 11:42, Harry Schmalzbauer wrote: >> Bezüglich Alexander Motin's Nachricht vom 18.08.2016 14:08 (localtime): >>> Author: mav >>> Date: Thu Aug 18 12:08:39 2016 >>> New Revision: 304426 >>> URL: https://svnweb.freebsd.org/changeset/base/304426 >>> >>> Log: >>> MFC r303009: Negotiate/disable TXCSUM_IPV6 same as TXCSUM. >> >> Have you asked for RE-approval to get this into 11.0? >> If I understand it correctly it's a essential fix for jail+epair+IPv6 >> useres, solving nasty hard to track oddities? > > No, I haven't asked, because I haven't seen related bug reports and > found this accidentally. But if anybody wants it -- be my guest. I haven't filed a PR because I ran out of time tracking my bridge(4) oddities, since so many exotics are involved: VT-d PCIe-passthrough of two igb(4) = lagg(4) - bridge(4) - epair(4). At some point I clearly found bridge(4) misbehaving, and I did some(tm) workarround and went on. This was with stable/10 between 10.0 and 10.1 (currently running 10.1 on that setup). Can't tell if igb(4) in 10.1 is even TXCSUM_IPV6 capable (this was added quiet lately in igb(4)'s live, afair), but the symptoms match very well this missing TXCSUM_IPV6 disabling. Even if not in my case, as far as I understand, everybody else using 11.0-RC2 with TXCSUM_IPV6-enabledNic(4)+bridge(4) would suffer from network failures. You found + fixed it, so 11.0 should get this :-) Thanks, -harry