Date: Wed, 24 Aug 2016 11:21:48 +0200 From: Harry Schmalzbauer <freebsd@omnilan.de> To: Alexander Motin <mav@freebsd.org> 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 Message-ID: <57BD672C.5010108@omnilan.de> In-Reply-To: <dd1a21da-d428-a724-b2bd-c4dd60ab48b8@FreeBSD.org> References: <201608181208.u7IC8dYZ058543@repo.freebsd.org> <57BD5E0F.8000205@omnilan.de> <dd1a21da-d428-a724-b2bd-c4dd60ab48b8@FreeBSD.org>
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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
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