From owner-freebsd-xen@FreeBSD.ORG Mon Jul 18 11:07:18 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 2522C1065709 for ; Mon, 18 Jul 2011 11:07:18 +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 EE3678FC0C for ; Mon, 18 Jul 2011 11:07:17 +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 p6IB7Hgw026986 for ; Mon, 18 Jul 2011 11:07:17 GMT (envelope-from owner-bugmaster@FreeBSD.org) Received: (from gnats@localhost) by freefall.freebsd.org (8.14.4/8.14.4/Submit) id p6IB7HjU026984 for freebsd-xen@FreeBSD.org; Mon, 18 Jul 2011 11:07:17 GMT (envelope-from owner-bugmaster@FreeBSD.org) Date: Mon, 18 Jul 2011 11:07:17 GMT Message-Id: <201107181107.p6IB7HjU026984@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, 18 Jul 2011 11:07:18 -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 kern/155468 xen [xen] Xen PV i386 multi-kernel CPU system is not worki o kern/155353 xen [xen] [patch] put "nudging TOD" message under boot_ver o kern/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 p 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 24 problems total. From owner-freebsd-xen@FreeBSD.ORG Wed Jul 20 23:21:16 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 0396D106564A for ; Wed, 20 Jul 2011 23:21:16 +0000 (UTC) (envelope-from scott@bqinternet.com) Received: from mail.bqinternet.com (mail.bqinternet.com [69.9.32.203]) by mx1.freebsd.org (Postfix) with ESMTP id CCBA98FC08 for ; Wed, 20 Jul 2011 23:21:15 +0000 (UTC) Received: from localhost (mail [69.9.32.203]) by mail.bqinternet.com (Postfix) with ESMTP id 0DDD7840062 for ; Wed, 20 Jul 2011 22:50:48 +0000 (GMT) Received: from mail.bqinternet.com ([69.9.32.203]) by localhost (mail.bqinternet.com [69.9.32.203]) (amavisd-new, port 10024) with ESMTP id FPDkDPEl6bxm for ; Wed, 20 Jul 2011 22:50:47 +0000 (GMT) Received: from [192.168.23.125] (mail [69.9.32.203]) (using TLSv1 with cipher AES256-SHA (256/256 bits)) (No client certificate requested) by mail.bqinternet.com (Postfix) with ESMTP id 48A85840060 for ; Wed, 20 Jul 2011 22:50:47 +0000 (GMT) Message-ID: <4E275BC1.9040508@bqinternet.com> Date: Wed, 20 Jul 2011 18:50:41 -0400 From: Scott Burns User-Agent: Mozilla/5.0 (Macintosh; U; Intel Mac OS X 10.6; en-US; rv:1.9.2.18) Gecko/20110616 Thunderbird/3.1.11 MIME-Version: 1.0 To: freebsd-xen@freebsd.org Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Subject: Xen save/resume with XENHVM kernel 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: Wed, 20 Jul 2011 23:21:16 -0000 Hi guys, I have been using FreeBSD 8.2 with the XENHVM kernel for several months. The performance is great, and the reliability is rock solid. However, while preparing to upgrade the hardware in our Xen servers, I was unpleasantly surprised to find that Xen's save/restore functionality does not work, and thus I can't use live migration. I see in sys/dev/xen/blkfront/blkfront.c that the blkfront_resume() function is not implemented, and there are also some notes about it in blkif_recover(). Is anyone currently working on this? Is there a hack I could use to get live migration working, even if it's not under ideal conditions? -- Scott Burns System Administrator BQ Internet Corporation From owner-freebsd-xen@FreeBSD.ORG Thu Jul 21 03:43:05 2011 Return-Path: Delivered-To: freebsd-xen@freebsd.org Received: from mx2.freebsd.org (mx2.freebsd.org [IPv6:2001:4f8:fff6::35]) by hub.freebsd.org (Postfix) with ESMTP id 48E9E106564A for ; Thu, 21 Jul 2011 03:43:05 +0000 (UTC) (envelope-from cperciva@freebsd.org) Received: from xps.daemonology.net (freefall.freebsd.org [IPv6:2001:4f8:fff6::28]) by mx2.freebsd.org (Postfix) with SMTP id E8D9814DABE for ; Thu, 21 Jul 2011 03:43:04 +0000 (UTC) Received: (qmail 79264 invoked from network); 21 Jul 2011 03:43:04 -0000 Received: from unknown (HELO xps.daemonology.net) (127.0.0.1) by localhost with SMTP; 21 Jul 2011 03:43:04 -0000 Message-ID: <4E27A048.1070405@freebsd.org> Date: Wed, 20 Jul 2011 20:43:04 -0700 From: Colin Percival User-Agent: Mozilla/5.0 (X11; U; FreeBSD amd64; en-US; rv:1.9.1.16) Gecko/20101220 Thunderbird/3.0.11 MIME-Version: 1.0 To: Scott Burns References: <4E275BC1.9040508@bqinternet.com> In-Reply-To: <4E275BC1.9040508@bqinternet.com> X-Enigmail-Version: 1.0.1 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Cc: freebsd-xen@freebsd.org Subject: Re: Xen save/resume with XENHVM kernel 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: Thu, 21 Jul 2011 03:43:05 -0000 On 07/20/11 15:50, Scott Burns wrote: > I see in sys/dev/xen/blkfront/blkfront.c that the blkfront_resume() > function is not implemented, and there are also some notes about it in > blkif_recover(). Is anyone currently working on this? Is there a hack > I could use to get live migration working, even if it's not under ideal > conditions? I'm not aware of any ongoing work on this. Most of the places where FreeBSD is being used with Xen don't use live migration. -- Colin Percival Security Officer, FreeBSD | freebsd.org | The power to serve Founder / author, Tarsnap | tarsnap.com | Online backups for the truly paranoid From owner-freebsd-xen@FreeBSD.ORG Thu Jul 21 17:15:19 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 ED801106566C for ; Thu, 21 Jul 2011 17:15:19 +0000 (UTC) (envelope-from scott@bqinternet.com) Received: from mail.bqinternet.com (mail.bqinternet.com [69.9.32.203]) by mx1.freebsd.org (Postfix) with ESMTP id C11288FC17 for ; Thu, 21 Jul 2011 17:15:19 +0000 (UTC) Received: from localhost (mail [69.9.32.203]) by mail.bqinternet.com (Postfix) with ESMTP id 564E584021C for ; Thu, 21 Jul 2011 17:15:25 +0000 (GMT) Received: from mail.bqinternet.com ([69.9.32.203]) by localhost (mail.bqinternet.com [69.9.32.203]) (amavisd-new, port 10024) with ESMTP id nmBc2t+l123O for ; Thu, 21 Jul 2011 17:15:25 +0000 (GMT) Received: from [192.168.23.125] (mail [69.9.32.203]) (using TLSv1 with cipher AES256-SHA (256/256 bits)) (No client certificate requested) by mail.bqinternet.com (Postfix) with ESMTP id C5EDB84019F for ; Thu, 21 Jul 2011 17:15:24 +0000 (GMT) Message-ID: <4E285EA3.2070104@bqinternet.com> Date: Thu, 21 Jul 2011 13:15:15 -0400 From: Scott Burns User-Agent: Mozilla/5.0 (Macintosh; U; Intel Mac OS X 10.6; en-US; rv:1.9.2.18) Gecko/20110616 Thunderbird/3.1.11 MIME-Version: 1.0 To: freebsd-xen@freebsd.org References: <4E275BC1.9040508@bqinternet.com> <4E27A048.1070405@freebsd.org> In-Reply-To: <4E27A048.1070405@freebsd.org> Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Subject: Re: Xen save/resume with XENHVM kernel 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: Thu, 21 Jul 2011 17:15:20 -0000 On 7/20/11 11:43 PM, Colin Percival wrote: > On 07/20/11 15:50, Scott Burns wrote: >> I see in sys/dev/xen/blkfront/blkfront.c that the blkfront_resume() >> function is not implemented, and there are also some notes about it in >> blkif_recover(). Is anyone currently working on this? Is there a hack >> I could use to get live migration working, even if it's not under ideal >> conditions? > > I'm not aware of any ongoing work on this. Most of the places where FreeBSD is > being used with Xen don't use live migration. I use live migration so that I can upgrade hardware or do maintenance without needing to shut down VMs. Xen + DRBD makes for a nice little cloud setup. -- Scott Burns System Administrator BQ Internet Corporation