From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mailman by lists.gnu.org with tmda-scanned (Exim 4.43) id 1IQPii-000801-MC for qemu-devel@nongnu.org; Wed, 29 Aug 2007 11:44:40 -0400 Received: from exim by lists.gnu.org with spam-scanned (Exim 4.43) id 1IQPih-0007zd-2e for qemu-devel@nongnu.org; Wed, 29 Aug 2007 11:44:40 -0400 Received: from [199.232.76.173] (helo=monty-python.gnu.org) by lists.gnu.org with esmtp (Exim 4.43) id 1IQPig-0007za-RM for qemu-devel@nongnu.org; Wed, 29 Aug 2007 11:44:38 -0400 Received: from hibernia.jakma.org ([212.17.55.49]) by monty-python.gnu.org with esmtps (TLS-1.0:DHE_RSA_AES_256_CBC_SHA1:32) (Exim 4.60) (envelope-from ) id 1IQPig-0004hc-AM for qemu-devel@nongnu.org; Wed, 29 Aug 2007 11:44:38 -0400 Received: from [81.168.24.37] ([81.168.24.37]) (authenticated bits=0) by hibernia.jakma.org (8.14.1/8.14.1) with ESMTP id l7TFi4FK012871 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=NO) for ; Wed, 29 Aug 2007 16:44:09 +0100 Date: Wed, 29 Aug 2007 16:44:04 +0100 (IST) From: Paul Jakma Subject: Re: [Qemu-devel] Re: [et-mgmt-tools] Image Corruption Possible with qemu and qemu-kvm In-Reply-To: <46D58F85.60104@suse.de> Message-ID: References: <46D2EC13.8020005@bppiac.hu> <1188232650.25884.100.camel@localhost.localdomain> <20070827202748.GK9043@redhat.com> <1188248558.21696.1.camel@squirrel> <46D58F85.60104@suse.de> MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII; format=flowed Reply-To: Paul Jakma , qemu-devel@nongnu.org List-Id: qemu-devel.nongnu.org List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: qemu-devel@nongnu.org On Wed, 29 Aug 2007, Alexander Graf wrote: > Paul Jakma wrote: >> I think that's unlikely, and it'd be nice if QEMU by default did a >> fcntl() on writeable image files to lock itself from multiple access, ^^^^^^^^^^^^^^^^^^^^^^^^ > I'm usually running one "main" qemu instance that has read/write > access to the disk file and several others for tests that use the > -snapshot option, so I think it's very important to have an easy > means of switching this check off. Of course. Though, I said 'writeable' - so you might not need to use such an option.. ;) regards, -- Paul Jakma paul@clubi.ie paul@jakma.org Key ID: 64A2FF6A Fortune: This report is filled with omissions.