From owner-freebsd-xen@FreeBSD.ORG Mon Feb 28 11:07:12 2011 Return-Path: Delivered-To: freebsd-xen@FreeBSD.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id B43E11065677 for ; Mon, 28 Feb 2011 11:07:12 +0000 (UTC) (envelope-from owner-bugmaster@FreeBSD.org) Received: from freefall.freebsd.org (freefall.freebsd.org [IPv6:2001:4f8:fff6::28]) by mx1.freebsd.org (Postfix) with ESMTP id 88F138FC1B for ; Mon, 28 Feb 2011 11:07:12 +0000 (UTC) Received: from freefall.freebsd.org (localhost [127.0.0.1]) by freefall.freebsd.org (8.14.4/8.14.4) with ESMTP id p1SB7C5f012159 for ; Mon, 28 Feb 2011 11:07:12 GMT (envelope-from owner-bugmaster@FreeBSD.org) Received: (from gnats@localhost) by freefall.freebsd.org (8.14.4/8.14.4/Submit) id p1SB7Bri012157 for freebsd-xen@FreeBSD.org; Mon, 28 Feb 2011 11:07:11 GMT (envelope-from owner-bugmaster@FreeBSD.org) Date: Mon, 28 Feb 2011 11:07:11 GMT Message-Id: <201102281107.p1SB7Bri012157@freefall.freebsd.org> X-Authentication-Warning: freefall.freebsd.org: gnats set sender to owner-bugmaster@FreeBSD.org using -f From: FreeBSD bugmaster To: freebsd-xen@FreeBSD.org Cc: Subject: Current problem reports assigned to freebsd-xen@FreeBSD.org X-BeenThere: freebsd-xen@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Discussion of the freebsd port to xen - implementation and usage List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Mon, 28 Feb 2011 11:07:12 -0000 Note: to view an individual PR, use: http://www.freebsd.org/cgi/query-pr.cgi?pr=(number). The following is a listing of current problems submitted by FreeBSD users. These represent problem reports covering all versions including experimental development code and obsolete releases. S Tracker Resp. Description -------------------------------------------------------------------------------- o i386/154833 xen [xen]: xen 4.0 - DomU freebsd8.2RC3 i386, XEN kernel. o kern/154473 xen [xen] xen 4.0 - DomU freebsd8.1 i386, XEN kernel. Not o kern/154472 xen [xen] xen 4.0 - DomU freebsd8.1 i386 xen kernel reboot o kern/154428 xen [xen] xn0 network interface and PF - Massive performan o kern/154302 xen [xen] [panic] [patch] xn0: Error 2 parsing device/vif/ o kern/153789 xen [xen] [regression] FreeBSD 8.2-RC1 crashes under Solar o kern/153674 xen [xen] i386/XEN idle thread shows wrong percentages o kern/153672 xen [xen] [panic] i386/XEN panics under heavy fork load o kern/153620 xen [xen] Xen guest system clock drifts in AWS EC2 (FreeBS o kern/153477 xen [xen] XEN pmap code abuses vm page queue lock o kern/153150 xen [xen] xen/ec2: disable checksum offloading on interfac o kern/152228 xen [xen] [panic] Xen/PV panic with machdep.idle_mwait=1 o kern/144629 xen [xen] FreeBSD 8-RELEASE XEN pvm networking doesn't wor o kern/143398 xen [xen] FreeBSD 8-RELEASE XEN pvm networking doesn't wor o kern/143340 xen [xen] FreeBSD 8-RELEASE XEN pvm networking doesn't wor f kern/143069 xen [xen] [panic] Xen Kernel Panic - Memory modified after f kern/135667 xen ufs filesystem corruption on XEN DomU system f kern/135421 xen [xen] FreeBSD Xen PVM DomU network failure - netfronc. f kern/135178 xen [xen] Xen domU outgoing data transfer stall when TSO i o kern/135069 xen [xen] FreeBSD-current/Xen SMP doesn't function at all f i386/124516 xen [xen] FreeBSD-CURRENT Xen Kernel Segfaults when config o kern/118734 xen [xen] FreeBSD 6.3-RC1 and FreeBSD 7.0-BETA 4 fail to b 22 problems total. From owner-freebsd-xen@FreeBSD.ORG Mon Feb 28 16:20:15 2011 Return-Path: Delivered-To: freebsd-xen@hub.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id 91EB2106566B for ; Mon, 28 Feb 2011 16:20:15 +0000 (UTC) (envelope-from gnats@FreeBSD.org) Received: from freefall.freebsd.org (freefall.freebsd.org [IPv6:2001:4f8:fff6::28]) by mx1.freebsd.org (Postfix) with ESMTP id 666768FC14 for ; Mon, 28 Feb 2011 16:20:15 +0000 (UTC) Received: from freefall.freebsd.org (localhost [127.0.0.1]) by freefall.freebsd.org (8.14.4/8.14.4) with ESMTP id p1SGKFa4051049 for ; Mon, 28 Feb 2011 16:20:15 GMT (envelope-from gnats@freefall.freebsd.org) Received: (from gnats@localhost) by freefall.freebsd.org (8.14.4/8.14.4/Submit) id p1SGKF76051048; Mon, 28 Feb 2011 16:20:15 GMT (envelope-from gnats) Date: Mon, 28 Feb 2011 16:20:15 GMT Message-Id: <201102281620.p1SGKF76051048@freefall.freebsd.org> To: freebsd-xen@FreeBSD.org From: AdminZ adm Cc: Subject: Re: kern/153789: [xen] [regression] FreeBSD 8.2-RC1 crashes under Solaris/Xen while FreeBSD 8.1-p2 does not. X-BeenThere: freebsd-xen@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list Reply-To: AdminZ adm List-Id: Discussion of the freebsd port to xen - implementation and usage List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Mon, 28 Feb 2011 16:20:15 -0000 The following reply was made to PR kern/153789; it has been noted by GNATS. From: AdminZ adm To: bug-followup@FreeBSD.org, gadm@avalon-island.ru Cc: Subject: Re: kern/153789: [xen] [regression] FreeBSD 8.2-RC1 crashes under Solaris/Xen while FreeBSD 8.1-p2 does not. Date: Mon, 28 Feb 2011 17:57:56 +0200 I get this panic (pmap_init: page table page is out of range), when trying to boot FreeBSD 8.2-RELEASE/i386/Xen kernel under XEN 4.0@2.6.32-xen-r1 with domU memory > 768M. If set memory < 768M freebsd boot normally in PV mode. Please advise.. From owner-freebsd-xen@FreeBSD.ORG Tue Mar 1 15:14:01 2011 Return-Path: Delivered-To: freebsd-xen@hub.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id 04456106566C; Tue, 1 Mar 2011 15:14:01 +0000 (UTC) (envelope-from eadler@FreeBSD.org) Received: from freefall.freebsd.org (freefall.freebsd.org [IPv6:2001:4f8:fff6::28]) by mx1.freebsd.org (Postfix) with ESMTP id CF3398FC1C; Tue, 1 Mar 2011 15:14:00 +0000 (UTC) Received: from freefall.freebsd.org (localhost [127.0.0.1]) by freefall.freebsd.org (8.14.4/8.14.4) with ESMTP id p21FE06B060558; Tue, 1 Mar 2011 15:14:00 GMT (envelope-from eadler@freefall.freebsd.org) Received: (from eadler@localhost) by freefall.freebsd.org (8.14.4/8.14.4/Submit) id p21FE0ox060554; Tue, 1 Mar 2011 10:14:00 -0500 (EST) (envelope-from eadler) Date: Tue, 1 Mar 2011 10:14:00 -0500 (EST) Message-Id: <201103011514.p21FE0ox060554@freefall.freebsd.org> To: cperciva@freebsd.org, eadler@FreeBSD.org, freebsd-xen@FreeBSD.org From: eadler@FreeBSD.org Cc: Subject: Re: kern/153672: [xen] [panic] i386/XEN panics under heavy fork load X-BeenThere: freebsd-xen@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Discussion of the freebsd port to xen - implementation and usage List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 01 Mar 2011 15:14:01 -0000 Synopsis: [xen] [panic] i386/XEN panics under heavy fork load State-Changed-From-To: open->patched State-Changed-By: eadler State-Changed-When: Tue Mar 1 10:14:00 EST 2011 State-Changed-Why: committed in head http://www.freebsd.org/cgi/query-pr.cgi?pr=153672 From owner-freebsd-xen@FreeBSD.ORG Tue Mar 1 15:15:58 2011 Return-Path: Delivered-To: freebsd-xen@hub.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id 12B2C1065678; Tue, 1 Mar 2011 15:15:58 +0000 (UTC) (envelope-from eadler@FreeBSD.org) Received: from freefall.freebsd.org (freefall.freebsd.org [IPv6:2001:4f8:fff6::28]) by mx1.freebsd.org (Postfix) with ESMTP id DD2B08FC1E; Tue, 1 Mar 2011 15:15:57 +0000 (UTC) Received: from freefall.freebsd.org (localhost [127.0.0.1]) by freefall.freebsd.org (8.14.4/8.14.4) with ESMTP id p21FFv96063614; Tue, 1 Mar 2011 15:15:57 GMT (envelope-from eadler@freefall.freebsd.org) Received: (from eadler@localhost) by freefall.freebsd.org (8.14.4/8.14.4/Submit) id p21FFvLj063610; Tue, 1 Mar 2011 10:15:57 -0500 (EST) (envelope-from eadler) Date: Tue, 1 Mar 2011 10:15:57 -0500 (EST) Message-Id: <201103011515.p21FFvLj063610@freefall.freebsd.org> To: adrian@FreeBSD.org, eadler@FreeBSD.org, freebsd-xen@FreeBSD.org From: eadler@FreeBSD.org Cc: Subject: Re: kern/135069: [xen] FreeBSD-current/Xen SMP doesn't function at all after the AP's are loaded X-BeenThere: freebsd-xen@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Discussion of the freebsd port to xen - implementation and usage List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 01 Mar 2011 15:15:58 -0000 Synopsis: [xen] FreeBSD-current/Xen SMP doesn't function at all after the AP's are loaded State-Changed-From-To: open->patched State-Changed-By: eadler State-Changed-When: Tue Mar 1 10:15:57 EST 2011 State-Changed-Why: committed in head (r193154) http://www.freebsd.org/cgi/query-pr.cgi?pr=135069 From owner-freebsd-xen@FreeBSD.ORG Tue Mar 1 15:23:49 2011 Return-Path: Delivered-To: freebsd-xen@hub.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id 08D031065676; Tue, 1 Mar 2011 15:23:49 +0000 (UTC) (envelope-from eadler@FreeBSD.org) Received: from freefall.freebsd.org (freefall.freebsd.org [IPv6:2001:4f8:fff6::28]) by mx1.freebsd.org (Postfix) with ESMTP id D42518FC15; Tue, 1 Mar 2011 15:23:48 +0000 (UTC) Received: from freefall.freebsd.org (localhost [127.0.0.1]) by freefall.freebsd.org (8.14.4/8.14.4) with ESMTP id p21FNmmA074820; Tue, 1 Mar 2011 15:23:48 GMT (envelope-from eadler@freefall.freebsd.org) Received: (from eadler@localhost) by freefall.freebsd.org (8.14.4/8.14.4/Submit) id p21FNm8p074816; Tue, 1 Mar 2011 10:23:48 -0500 (EST) (envelope-from eadler) Date: Tue, 1 Mar 2011 10:23:48 -0500 (EST) Message-Id: <201103011523.p21FNm8p074816@freefall.freebsd.org> To: cperciva@freebsd.org, eadler@FreeBSD.org, freebsd-xen@FreeBSD.org From: eadler@FreeBSD.org Cc: Subject: Re: kern/153672: [xen] [panic] i386/XEN panics under heavy fork load X-BeenThere: freebsd-xen@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Discussion of the freebsd port to xen - implementation and usage List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 01 Mar 2011 15:23:49 -0000 Synopsis: [xen] [panic] i386/XEN panics under heavy fork load State-Changed-From-To: patched->open State-Changed-By: eadler State-Changed-When: Tue Mar 1 10:23:07 EST 2011 State-Changed-Why: Upon request from cperciva - the change committed was a partial workaround - not a fix http://www.freebsd.org/cgi/query-pr.cgi?pr=153672 From owner-freebsd-xen@FreeBSD.ORG Fri Mar 4 14:22:19 2011 Return-Path: Delivered-To: freebsd-xen@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id 342DA106566C for ; Fri, 4 Mar 2011 14:22:19 +0000 (UTC) (envelope-from joe@tao.org.uk) Received: from alpha.tao.org.uk (alpha.tao.org.uk [212.42.1.232]) by mx1.freebsd.org (Postfix) with ESMTP id EEDFB8FC12 for ; Fri, 4 Mar 2011 14:22:18 +0000 (UTC) Received: from localhost (alpha.tao.org.uk [212.42.1.232]) by alpha.tao.org.uk (Postfix) with ESMTP id 5B2931076E0D; Fri, 4 Mar 2011 14:12:42 +0000 (GMT) Received: from alpha.tao.org.uk ([212.42.1.232]) by localhost (mail.tao.org.uk [212.42.1.232]) (amavisd-maia, port 10024) with LMTP id 84573-04; Fri, 4 Mar 2011 14:12:32 +0000 (GMT) Received: from [90.155.77.76] (unknown [90.155.77.76]) (Authenticated sender: joemail@alpha.tao.org.uk) by alpha.tao.org.uk (Postfix) with ESMTPA id 6633C1076C76; Fri, 4 Mar 2011 14:12:28 +0000 (GMT) Content-Type: text/plain; charset=us-ascii Mime-Version: 1.0 (Apple Message framework v1081) From: Dr Josef Karthauser Date: Fri, 4 Mar 2011 14:12:26 +0000 Content-Transfer-Encoding: quoted-printable Message-Id: <7F0BEDC0-D2F5-45C1-8DE2-DF89622D42D0@tao.org.uk> References: To: freebsd-xen@freebsd.org X-Mailer: Apple Mail (2.1081) X-Virus-Scanned: Maia Mailguard 1.0.2a Subject: Xen, and "ops_pv" boot loader? X-BeenThere: freebsd-xen@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Discussion of the freebsd port to xen - implementation and usage List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 04 Mar 2011 14:22:19 -0000 Hello everyone, I'm beginning to play with Freebsd and Xen, and I'm targeting a VPS = provider who is giving me a large memory instance for a good price. = However, he only supports "ops_pv" kernels, being primarily a linux = house. So, I'm trying to work out what the best approach is. Ideally I'd be = running amd64, but he doesn't want to run an hvmloader. I guess that = means that I need to be running an i386 kernel; hopefully PAE works so = that I take advantage of the memory. However, this appears to be an inflexible solution. Doesn't it mean that = I will have no ability to tweak kernel variables, because effectively = once it's setup he will control the boot process - I'll also not be able = to upgrade the kernel easily. Also, no access to single user mode... = Ideally I want a boot loader.... So, I was thinking. How do we make the boot loader appear to Xen to be a = paravirtualized kernel? Currently it isn't even an elf object, but what = it is was. How much work do you think that it might be to make a "loader = kernel" that appears to be a kernel, but in fact is a boot strap. The = idea being that it could be run as a "ops_pv" kernel on a Xen platform = but otherwise behave exactly like our boot loader, processing = loader.conf, and booting a kernel in the normal way. Does anyone have any idea of whether that's a possibility? Or, is there = something fundamental about the pv_ops model that would prevent this? If this were possible we could boot the amd64 XENHVM kernel in a pv_ops = manner, with full control of the kernel configuration. Hmm... Joe From owner-freebsd-xen@FreeBSD.ORG Fri Mar 4 14:27:20 2011 Return-Path: Delivered-To: freebsd-xen@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id 305F11065670 for ; Fri, 4 Mar 2011 14:27:20 +0000 (UTC) (envelope-from joe@tao.org.uk) Received: from alpha.tao.org.uk (alpha.tao.org.uk [212.42.1.232]) by mx1.freebsd.org (Postfix) with ESMTP id EAB258FC13 for ; Fri, 4 Mar 2011 14:27:19 +0000 (UTC) Received: from localhost (alpha.tao.org.uk [212.42.1.232]) by alpha.tao.org.uk (Postfix) with ESMTP id 5CB701076DBA; Fri, 4 Mar 2011 14:11:35 +0000 (GMT) Received: from alpha.tao.org.uk ([212.42.1.232]) by localhost (mail.tao.org.uk [212.42.1.232]) (amavisd-maia, port 10024) with LMTP id 84573-02; Fri, 4 Mar 2011 14:11:24 +0000 (GMT) Received: from [90.155.77.76] (unknown [90.155.77.76]) (Authenticated sender: joemail@alpha.tao.org.uk) by alpha.tao.org.uk (Postfix) with ESMTPA id 526E01076C76; Fri, 4 Mar 2011 14:11:22 +0000 (GMT) Content-Type: text/plain; charset=us-ascii Mime-Version: 1.0 (Apple Message framework v1081) From: Dr Josef Karthauser Date: Fri, 4 Mar 2011 14:11:20 +0000 Content-Transfer-Encoding: quoted-printable Message-Id: <423DA028-1CDB-443F-B3F0-C610D6268484@tao.org.uk> References: To: freebsd-xen@freebsd.org X-Mailer: Apple Mail (2.1081) X-Virus-Scanned: Maia Mailguard 1.0.2a Subject: XEN i386 with PAE and zfs, trouble? X-BeenThere: freebsd-xen@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Discussion of the freebsd port to xen - implementation and usage List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 04 Mar 2011 14:27:20 -0000 Hey there, I've been asking these questions to the wrong list! Just found the xen = list, so I'll recap here. I want to run amd64 on xen, at a VPS hosting provider. Due to cost = constraints the sweet spot in the cost/memory ratio has given me a = provider who will only support a "ops_pv" kernel. This means that XENHVM = on amd64 is not available to me. The VPS provider will be giving me at least 6 gb of ram, and I want to = run ZFS on the instance. This leaves me considering running the i386 = kernel and relying on PAE to get access to the extra memory. I presume = that I'll lose about 1.5-2gb of RAM to ZFS tuning, and hope that means = that I'll have 4gb(-ish) available to userland processes. Is this a sensible assumption? Can I rely on this being a stable = configuration, or am I high?! :) Thanks, Joe From owner-freebsd-xen@FreeBSD.ORG Fri Mar 4 17:41:36 2011 Return-Path: Delivered-To: freebsd-xen@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id 722621065670 for ; Fri, 4 Mar 2011 17:41:36 +0000 (UTC) (envelope-from simond@irrelevant.org) Received: from mail-gw0-f44.google.com (mail-gw0-f44.google.com [74.125.83.44]) by mx1.freebsd.org (Postfix) with ESMTP id 2B6AE8FC16 for ; Fri, 4 Mar 2011 17:41:35 +0000 (UTC) Received: by gwaa18 with SMTP id a18so1966302gwa.17 for ; Fri, 04 Mar 2011 09:41:35 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=irrelevant.org; s=irrelevant; h=domainkey-signature:mime-version:x-originating-ip:in-reply-to :references:date:message-id:subject:from:to:cc:content-type :content-transfer-encoding; bh=rNwrq9yWHOEFlv1MxIikOjNLFuKAN7MxwHNcx2G3QDM=; b=HSmjDeuGrQ1e2HcY+SV7j4XGgdusZ65u41zUg+7/cW3mLiadgNQGhvkJ8fz33s5mK1 n1Du/r8IYzPZyGIGCVlmnyn+sttEoRSgPtOP4qe6FfGErLlv0C33h4BDUFlvHTINmglP bl/y8ybjDkj4ISy+U56R3FXZJ2U5S9v9YEpQs= DomainKey-Signature: a=rsa-sha1; c=nofws; d=irrelevant.org; s=irrelevant; h=mime-version:x-originating-ip:in-reply-to:references:date :message-id:subject:from:to:cc:content-type :content-transfer-encoding; b=GXZ4RiEcylTFFV4gc1k3BgdAspXKtSoYtzghvjAhFNEo7KvUVmvZGt3e2r84zuJe3n 1xNb6brjNHfNI/771qldW4779v8gBzJTiyqX/iytJhYWcSG5OSamLk9gjx/Saw0bjZoq 1N7lLwn6yKVDe5eIJjfcN3MbnHYlqlq5pFyBc= MIME-Version: 1.0 Received: by 10.90.250.25 with SMTP id x25mr1037913agh.197.1299258727206; Fri, 04 Mar 2011 09:12:07 -0800 (PST) Received: by 10.91.111.2 with HTTP; Fri, 4 Mar 2011 09:12:07 -0800 (PST) X-Originating-IP: [188.223.83.48] In-Reply-To: <423DA028-1CDB-443F-B3F0-C610D6268484@tao.org.uk> References: <423DA028-1CDB-443F-B3F0-C610D6268484@tao.org.uk> Date: Fri, 4 Mar 2011 17:12:07 +0000 Message-ID: From: Simon Dick To: Dr Josef Karthauser Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: quoted-printable Cc: freebsd-xen@freebsd.org Subject: Re: XEN i386 with PAE and zfs, trouble? X-BeenThere: freebsd-xen@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Discussion of the freebsd port to xen - implementation and usage List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 04 Mar 2011 17:41:36 -0000 On 4 March 2011 14:11, Dr Josef Karthauser wrote: > Hey there, > > I've been asking these questions to the wrong list! Just found the xen li= st, so I'll recap here. > > I want to run amd64 on xen, at a VPS hosting provider. Due to cost constr= aints the sweet spot in the cost/memory ratio has given me a provider who w= ill only support a "ops_pv" kernel. This means that XENHVM on amd64 is not = available to me. > > The VPS provider will be giving me at least 6 gb of ram, and I want to ru= n ZFS on the instance. This leaves me considering running the i386 kernel a= nd relying on PAE to get access to the extra memory. I presume that I'll lo= se about 1.5-2gb of RAM to ZFS tuning, and hope that means that I'll have 4= gb(-ish) available to userland processes. > > Is this a sensible assumption? Can I rely on this being a stable configur= ation, or am I high?! :) Not sure if it's just me, but you lose a fair few of ZFSs features if you're not running it on actual hardware drives, etc, though I think what you're planning may work it's not a setup I'd like to run myself apart from to experiment with :) From owner-freebsd-xen@FreeBSD.ORG Sat Mar 5 20:49:32 2011 Return-Path: Delivered-To: freebsd-xen@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id 9F40D106564A for ; Sat, 5 Mar 2011 20:49:32 +0000 (UTC) (envelope-from joe@tao.org.uk) Received: from alpha.tao.org.uk (alpha.tao.org.uk [212.42.1.232]) by mx1.freebsd.org (Postfix) with ESMTP id 61F968FC1C for ; Sat, 5 Mar 2011 20:49:32 +0000 (UTC) Received: from localhost (alpha.tao.org.uk [212.42.1.232]) by alpha.tao.org.uk (Postfix) with ESMTP id 3F2EC1076D78; Sat, 5 Mar 2011 20:49:31 +0000 (GMT) Received: from alpha.tao.org.uk ([212.42.1.232]) by localhost (mail.tao.org.uk [212.42.1.232]) (amavisd-maia, port 10024) with LMTP id 38242-03; Sat, 5 Mar 2011 20:49:20 +0000 (GMT) Received: from [10.0.2.3] (unknown [90.155.77.78]) (Authenticated sender: joemail@alpha.tao.org.uk) by alpha.tao.org.uk (Postfix) with ESMTPA id 7BBF41076D1D; Sat, 5 Mar 2011 20:49:15 +0000 (GMT) Mime-Version: 1.0 (Apple Message framework v1081) Content-Type: text/plain; charset=us-ascii From: Dr Josef Karthauser In-Reply-To: Date: Sat, 5 Mar 2011 20:49:14 +0000 Content-Transfer-Encoding: quoted-printable Message-Id: <6C1E7D15-0607-44FC-8582-01652DBF7B58@tao.org.uk> References: <423DA028-1CDB-443F-B3F0-C610D6268484@tao.org.uk> To: Simon Dick X-Mailer: Apple Mail (2.1081) X-Virus-Scanned: Maia Mailguard 1.0.2a Cc: freebsd-xen@freebsd.org Subject: Re: XEN i386 with PAE and zfs, trouble? X-BeenThere: freebsd-xen@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Discussion of the freebsd port to xen - implementation and usage List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sat, 05 Mar 2011 20:49:32 -0000 On 4 Mar 2011, at 17:12, Simon Dick wrote: >> Is this a sensible assumption? Can I rely on this being a stable = configuration, or am I high?! :) >=20 > Not sure if it's just me, but you lose a fair few of ZFSs features if > you're not running it on actual hardware drives, etc, though I think > what you're planning may work it's not a setup I'd like to run myself > apart from to experiment with :) You think? I reckon that there's lots going for it, partitioning and = quotas, compression, snapshots, easy of upgrading (when I run out of = space and need more), etc etc. The underlying drives will be mirrored = already, so I don't need any mirror or raid functionality, but = everything else would be nice :). J.=