From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from eggs.gnu.org ([208.118.235.92]:52207) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1Ug9xB-0000gY-Ai for qemu-devel@nongnu.org; Sat, 25 May 2013 04:36:01 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1Ug9x0-00051H-Kv for qemu-devel@nongnu.org; Sat, 25 May 2013 04:35:53 -0400 Received: from indium.canonical.com ([91.189.90.7]:41749) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1Ug9x0-00050z-Ev for qemu-devel@nongnu.org; Sat, 25 May 2013 04:35:42 -0400 Received: from loganberry.canonical.com ([91.189.90.37]) by indium.canonical.com with esmtp (Exim 4.71 #1 (Debian)) id 1Ug9wz-0002Ed-Lc for ; Sat, 25 May 2013 08:35:41 +0000 Received: from loganberry.canonical.com (localhost [127.0.0.1]) by loganberry.canonical.com (Postfix) with ESMTP id 85A152E807F for ; Sat, 25 May 2013 08:35:41 +0000 (UTC) MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable Date: Sat, 25 May 2013 08:29:11 -0000 From: Michael Coppola Sender: bounces@canonical.com References: <20130525082911.27253.67454.malonedeb@gac.canonical.com> Message-Id: <20130525082911.27253.67454.malonedeb@gac.canonical.com> Errors-To: bounces@canonical.com Subject: [Qemu-devel] [Bug 1184089] [NEW] [Feature request] loadvm snapshot as read-only Reply-To: Bug 1184089 <1184089@bugs.launchpad.net> List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: qemu-devel@nongnu.org Public bug reported: There are many ways to take and manage snapshots in QEMU, but one main feature that's missing is the ability to 'loadvm' a LIVE snapshot and have all future changes redirected to a temporary file. This would effectively be combining the -loadvm and -snapshot switches and make the snapshot read-only. With this feature, users would be provided a "sandbox" and be able to start and restart the same live snapshot without corrupting the image in doing so. I found a lot of discussion about this topic on the mailing list years ago, including some patch submissions, but none of the conversations panned out. http://lists.gnu.org/archive/html/qemu-discuss/2011-10/msg00011.html http://copilotco.com/mail-archives/qemu.2008/msg00072.html http://web.archiveorange.com/archive/v/1XS1vcusGInZKG2e0ImX http://marc.info/?l=3Dqemu-devel&m=3D117191084713590 What would it take for this feature to be added, and can we use the patches submitted by Eddie Kohler to enable this feature? ** Affects: qemu Importance: Undecided Status: New -- = You received this bug notification because you are a member of qemu- devel-ml, which is subscribed to QEMU. https://bugs.launchpad.net/bugs/1184089 Title: [Feature request] loadvm snapshot as read-only Status in QEMU: New Bug description: There are many ways to take and manage snapshots in QEMU, but one main feature that's missing is the ability to 'loadvm' a LIVE snapshot and have all future changes redirected to a temporary file. This would effectively be combining the -loadvm and -snapshot switches and make the snapshot read-only. With this feature, users would be provided a "sandbox" and be able to start and restart the same live snapshot without corrupting the image in doing so. I found a lot of discussion about this topic on the mailing list years ago, including some patch submissions, but none of the conversations panned out. http://lists.gnu.org/archive/html/qemu-discuss/2011-10/msg00011.html http://copilotco.com/mail-archives/qemu.2008/msg00072.html http://web.archiveorange.com/archive/v/1XS1vcusGInZKG2e0ImX http://marc.info/?l=3Dqemu-devel&m=3D117191084713590 What would it take for this feature to be added, and can we use the patches submitted by Eddie Kohler to enable this feature? To manage notifications about this bug go to: https://bugs.launchpad.net/qemu/+bug/1184089/+subscriptions