From owner-freebsd-virtualization@freebsd.org Mon Jun 13 19:26:34 2016 Return-Path: Delivered-To: freebsd-virtualization@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 6D839AF2F93; Mon, 13 Jun 2016 19:26:34 +0000 (UTC) (envelope-from saper@saper.info) Received: from m.saper.info (m.saper.info [IPv6:2a01:4f8:a0:7383::]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (Client CN "m.saper.info", Issuer "Marcin Cieslak 2016" (not verified)) by mx1.freebsd.org (Postfix) with ESMTPS id 0CFA8222A; Mon, 13 Jun 2016 19:26:33 +0000 (UTC) (envelope-from saper@saper.info) Received: from m.saper.info (saper@m.saper.info [IPv6:2a01:4f8:a0:7383::]) by m.saper.info (8.15.2/8.15.2) with ESMTPS id u5DJQUQu027622 (version=TLSv1.2 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=NO); Mon, 13 Jun 2016 19:26:30 GMT (envelope-from saper@saper.info) Received: from localhost (saper@localhost) by m.saper.info (8.15.2/8.15.2/Submit) with ESMTP id u5DJQUkA027619; Mon, 13 Jun 2016 19:26:30 GMT (envelope-from saper@saper.info) X-Authentication-Warning: m.saper.info: saper owned process doing -bs Date: Mon, 13 Jun 2016 19:26:30 +0000 From: Marcin Cieslak To: =?ISO-8859-15?Q?Roger_Pau_Monn=E9?= cc: freebsd-xen@FreeBSD.org, xen-devel@lists.xenproject.org, freebsd-virtualization@freebsd.org Subject: Re: HEADS UP: Imported Xen 4.7: no blkback In-Reply-To: <20160613091003.cejnbuqepp25zanc@mac> Message-ID: References: <20160603120921.y5l362zgrhf4fdcb@mac> <20160609080343.44rvpda4hskiy3ge@mac> <20160613091003.cejnbuqepp25zanc@mac> MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=iso-8859-1 Content-Transfer-Encoding: 8BIT X-BeenThere: freebsd-virtualization@freebsd.org X-Mailman-Version: 2.1.22 Precedence: list List-Id: "Discussion of various virtualization techniques FreeBSD supports." List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Mon, 13 Jun 2016 19:26:34 -0000 On Mon, 13 Jun 2016, Roger Pau Monné wrote: > On Fri, Jun 10, 2016 at 09:38:59PM +0000, Marcin Cieslak wrote: > > "?" does not work - it mostly causes a panic, the console is slow, but I managed > > to switch it to /dev/ada0p2, dmesg below: > > This has now been reverted, so when I import the new RC this should be fixed > and you won't need to change anything. I am confused now - so with a new Xen kernel (not yet in ports) I can use /dev/xbd* devices again? They are in fact missing - xbd driver says "attaching as ada0" and I can mount it only as /dev/ada > It seems like Windows PV drivers don't attach at all, or are you running > Windows without the PV drivers? Yes, I have. Those Windows partitions used to work properly without changes under xen 4.5. But we are too early - the problem is that even ovmf does not se them drives now, this is before Windows boots. > Since you mention that the console is very slow, if you run 'top' on Dom0, > do you see any process (eg: qemu) taking a lot of CPU time? Yes, 1635 root 7 100 0 241M 101M RUN 7:16 91.14% qemu-system-i386 or more > Also, do you see Dom0 consuming a lot of CPU if you run 'xentop'? Domain-0 -----r 446 100.0 4194300 25.2 no limit n/a 1 0 0 0 0 0 0 0 0 0 0 Marcin