From owner-freebsd-stable@freebsd.org Fri Sep 29 12:23:13 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 45E27E2C1CB for ; Fri, 29 Sep 2017 12:23:13 +0000 (UTC) (envelope-from petefrench@ingresso.co.uk) Received: from constantine.ingresso.co.uk (unknown [IPv6:2a02:b90:3002:411::3]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (Client did not present a certificate) by mx1.freebsd.org (Postfix) with ESMTPS id 0EF1564A49; Fri, 29 Sep 2017 12:23:12 +0000 (UTC) (envelope-from petefrench@ingresso.co.uk) Received: from dilbert.ingresso.co.uk ([2a02:b90:3002:411::6]) by constantine.ingresso.co.uk with esmtpsa (TLSv1.2:ECDHE-RSA-AES256-GCM-SHA384:256) (Exim 4.89 (FreeBSD)) (envelope-from ) id 1dxuJx-000K4y-4S; Fri, 29 Sep 2017 12:23:09 +0000 Received: from petefrench by dilbert.ingresso.co.uk with local (Exim 4.89 (FreeBSD)) (envelope-from ) id 1dxuJw-0008cc-QR; Fri, 29 Sep 2017 13:23:08 +0100 To: paul.koch@akips.com, sephe@freebsd.org Subject: Re: 11.1 running on HyperV hn interface hangs Cc: freebsd-stable@freebsd.org, honzhan@microsoft.com, julian@freebsd.org In-Reply-To: Message-Id: From: Pete French Date: Fri, 29 Sep 2017 13:23:08 +0100 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: Fri, 29 Sep 2017 12:23:13 -0000 > Hmm, by ntpd I think you mean ntp client? You will have to disable > timesync if you run ntp client: > sysctl hw.hvtimesync.sample_thresh=-1 > sysctl hw.hvtimesync.ignore_sync=1 > > They interfere w/ each other. Oh! Does this apply to machines in Azure Hyper-V as well as on standalone installations ? I wasn't aware of this, and have ntp on as standard (which I wil now turn off pending a reply to this email, as sods law says that now I am aware of it then I will get lockups over the weekend) :-) -pete.