From owner-freebsd-stable@freebsd.org Wed Sep 6 15:23:52 2017 Return-Path: Delivered-To: freebsd-stable@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 A0C73E07C38 for ; Wed, 6 Sep 2017 15:23:52 +0000 (UTC) (envelope-from julian@freebsd.org) Received: from vps1.elischer.org (vps1.elischer.org [204.109.63.16]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (Client CN "vps1.elischer.org", Issuer "CA Cert Signing Authority" (not verified)) by mx1.freebsd.org (Postfix) with ESMTPS id 2885075772; Wed, 6 Sep 2017 15:23:51 +0000 (UTC) (envelope-from julian@freebsd.org) Received: from Julian-MBP3.local (125-209-132-171.dyn.iinet.net.au [125.209.132.171]) (authenticated bits=0) by vps1.elischer.org (8.15.2/8.15.2) with ESMTPSA id v86FNbWB088118 (version=TLSv1.2 cipher=DHE-RSA-AES128-SHA bits=128 verify=NO); Wed, 6 Sep 2017 08:23:42 -0700 (PDT) (envelope-from julian@freebsd.org) Subject: Re: 11.1 running on HyperV hn interface hangs To: freebsd-stable@freebsd.org, paul.koch137@gmail.com References: <20170906193309.796c79ed@akips.com> <3f96c7d0-4fbd-26cb-5c84-8868d12eb427@ingresso.co.uk> Cc: Sepherosa Ziehau , Hongjiang Zhang From: Julian Elischer Message-ID: <14997bba-aac2-947b-9b78-04af41ea29b0@freebsd.org> Date: Wed, 6 Sep 2017 23:23:32 +0800 User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.12; rv:52.0) Gecko/20100101 Thunderbird/52.3.0 MIME-Version: 1.0 In-Reply-To: <3f96c7d0-4fbd-26cb-5c84-8868d12eb427@ingresso.co.uk> Content-Type: text/plain; charset=utf-8; format=flowed Content-Transfer-Encoding: 8bit Content-Language: en-US X-BeenThere: freebsd-stable@freebsd.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: Production branch of FreeBSD source code List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 06 Sep 2017 15:23:53 -0000 On 6/9/17 7:02 pm, Pete French wrote: >> We recently moved our software from 11.0-p9 to 11.1-p1, but looks >> like there >> is a regression in 11.1-p1 running on HyperV (Windows/HyperV 2012 >> R2) where >> the virtual hn0 interface hangs with the following kernel messages: >> >>   hn0: on vmbus0 >>   hn0: Ethernet address: 00:15:5d:31:21:0f >>   hn0: link state changed to UP >>   ... >>   hn0: RXBUF ack retry >>   hn0: RXBUF ack failed >>   last message repeated 571 times >> >> It requires a restart of the HyperV VM. >> >> This is a customer production server (remote customer ~4000km away) >> running >> fairly critical monitoring software, so we needed to roll it back >> to 11.0-p9. >> We only have two customers running our software in HyperV, vs lots >> in VMware >> and a handful on physical hardware. >> >> 11.0-p9 has been very stable.  Has anyone seen this problem before >> with 11.1 ? > > > I don't run anything on local hyper-v anymore, but I do run a ot of > stuff in Azure, and we havent seen anything like this. I track > STABLE for things though, updating after reading the commits and > testing locally for a week or so, so the version I am running > currently is r320175, which was part of 11.1-BETA2. I am going to > upgrade to a more recent STABLE sometime this weke or next though, > will do that on a test amchine and let you now how it goes. > > I seem to recall that there were some large changes to the hn code > in August to add virtual function support. When does 11.1-p1 date > from ? make sure you contact the FreeBSD/Microsoft guys.  Very responsive.. don't know if they watch -stable.. I'll cc a couple.. > > -pete. > _______________________________________________ > freebsd-stable@freebsd.org mailing list > https://lists.freebsd.org/mailman/listinfo/freebsd-stable > To unsubscribe, send any mail to > "freebsd-stable-unsubscribe@freebsd.org" >