From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from eggs.gnu.org ([2001:4830:134:3::10]:42728) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1X3NAb-0006Yk-Rg for qemu-devel@nongnu.org; Sat, 05 Jul 2014 06:26:22 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1X3NAS-00063o-Rl for qemu-devel@nongnu.org; Sat, 05 Jul 2014 06:26:13 -0400 Received: from mail-qa0-x229.google.com ([2607:f8b0:400d:c00::229]:38824) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1X3NAS-00063k-Ld for qemu-devel@nongnu.org; Sat, 05 Jul 2014 06:26:04 -0400 Received: by mail-qa0-f41.google.com with SMTP id cm18so2076291qab.0 for ; Sat, 05 Jul 2014 03:26:04 -0700 (PDT) Sender: Paolo Bonzini Message-ID: <53B7D2B8.7000002@redhat.com> Date: Sat, 05 Jul 2014 12:26:00 +0200 From: Paolo Bonzini MIME-Version: 1.0 References: <1404495717-4239-1-git-send-email-dgilbert@redhat.com> <1404495717-4239-16-git-send-email-dgilbert@redhat.com> In-Reply-To: <1404495717-4239-16-git-send-email-dgilbert@redhat.com> Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Subject: Re: [Qemu-devel] [PATCH 15/46] Rework loadvm path for subloops List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: "Dr. David Alan Gilbert (git)" , qemu-devel@nongnu.org Cc: aarcange@redhat.com, yamahata@private.email.ne.jp, lilei@linux.vnet.ibm.com, quintela@redhat.com Il 04/07/2014 19:41, Dr. David Alan Gilbert (git) ha scritto: > From: "Dr. David Alan Gilbert" > > Postcopy needs to have two migration streams loading concurrently; > one from memory (with the device state) and the other from the fd > with the memory transactions. Can you explain this? I would have though the order is precopy RAM and everything prepare postcopy RAM ("sent && dirty" bitmap) finish precopy non-RAM finish devices postcopy RAM Why do you need to have all the packaging stuff and a separate memory-based migration stream for devices? I'm sure I'm missing something. :) Paolo