From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from eggs.gnu.org ([2001:4830:134:3::10]:57569) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1Xz4ph-000248-Fj for qemu-devel@nongnu.org; Thu, 11 Dec 2014 09:35:14 -0500 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1Xz4pc-0007PA-Ml for qemu-devel@nongnu.org; Thu, 11 Dec 2014 09:35:09 -0500 Received: from mx1.redhat.com ([209.132.183.28]:55248) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1Xz4pc-0007O0-GJ for qemu-devel@nongnu.org; Thu, 11 Dec 2014 09:35:04 -0500 Date: Thu, 11 Dec 2014 14:34:56 +0000 From: "Dr. David Alan Gilbert" Message-ID: <20141211143455.GG2567@work-vm> References: <20141210085852.GA2311@work-vm> <20141210170425.GQ14440@gandi.net> <20141210171000.GI2311@work-vm> <20141210172032.GR14440@gandi.net> <20141210173117.GJ2311@work-vm> <20141210180223.GT14440@gandi.net> <20141210182127.GL2311@work-vm> <20141211134427.GW14440@gandi.net> <20141211140535.GF2567@work-vm> <20141211143229.GX14440@gandi.net> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20141211143229.GX14440@gandi.net> Subject: Re: [Qemu-devel] migration from qemu2.1.2 to qemu2.2 List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: William Dauchy Cc: QEMU Developers * William Dauchy (william@gandi.net) wrote: > On Dec11 14:05, Dr. David Alan Gilbert wrote: > > Hmm, it might even do it on the same hardware between different qemus; > > I dont get your last statement; > my common use case is to live migrate an old userland to a new one > (so 2.1 to 2.2 here); so if I guarantee same HW, it should work, right? I wouldn't trust -host cpu to be the same on the same HW between different QEMUs, especially on newer hardware than your older QEMU new about. Dave -- Dr. David Alan Gilbert / dgilbert@redhat.com / Manchester, UK