Date: Wed, 6 Sep 2017 12:02:43 +0100 From: Pete French <petefrench@ingresso.co.uk> To: freebsd-stable@freebsd.org Subject: Re: 11.1 running on HyperV hn interface hangs Message-ID: <3f96c7d0-4fbd-26cb-5c84-8868d12eb427@ingresso.co.uk> In-Reply-To: <20170906193309.796c79ed@akips.com> References: <20170906193309.796c79ed@akips.com>
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> 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: <Hyper-V Network Interface> 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 ? -pete.
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