From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-5.3 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,USER_AGENT_SANE_1 autolearn=no autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 30622C55179 for ; Fri, 30 Oct 2020 09:27:28 +0000 (UTC) Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 6F23F206F4 for ; Fri, 30 Oct 2020 09:27:27 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (1024-bit key) header.d=redhat.com header.i=@redhat.com header.b="D2Wc4Tnn" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 6F23F206F4 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=redhat.com Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Received: from localhost ([::1]:35774 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1kYQgw-0004Od-3t for qemu-devel@archiver.kernel.org; Fri, 30 Oct 2020 05:27:26 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]:59954) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1kYQgN-0003uW-CX for qemu-devel@nongnu.org; Fri, 30 Oct 2020 05:26:51 -0400 Received: from us-smtp-delivery-124.mimecast.com ([216.205.24.124]:39138) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_CBC_SHA1:256) (Exim 4.90_1) (envelope-from ) id 1kYQgL-0004Ce-O1 for qemu-devel@nongnu.org; Fri, 30 Oct 2020 05:26:51 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1604050009; h=from:from:reply-to:reply-to:subject:subject:date:date: message-id:message-id:to:to:cc:cc:mime-version:mime-version: content-type:content-type:in-reply-to:in-reply-to: references:references; bh=nWjeAFn5k1IamNEoD0dqWQGomfDy+fktuXv7mBnmcyo=; b=D2Wc4TnnK/r+XJY5QohwNfPl3tII4W+WUo9REQF/kFZXoZLw2eR88PFda2i3PUw2w1eQrV ivbVCU8fFndA9oSYgW+srVKZSnEu4pA2bhjYhQZPrwUC2fcx3AabYfn6CmJmcZvf4F5RMM jVIxlRr0anu7wr1olYHs93w5GTlp7Vw= Received: from mimecast-mx01.redhat.com (mimecast-mx01.redhat.com [209.132.183.4]) (Using TLS) by relay.mimecast.com with ESMTP id us-mta-469-IatgEWhiPPqI37BNSCJ9GQ-1; Fri, 30 Oct 2020 05:26:47 -0400 X-MC-Unique: IatgEWhiPPqI37BNSCJ9GQ-1 Received: from smtp.corp.redhat.com (int-mx01.intmail.prod.int.phx2.redhat.com [10.5.11.11]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mimecast-mx01.redhat.com (Postfix) with ESMTPS id EC4BF10E2184; Fri, 30 Oct 2020 09:26:45 +0000 (UTC) Received: from redhat.com (ovpn-113-50.ams2.redhat.com [10.36.113.50]) by smtp.corp.redhat.com (Postfix) with ESMTPS id 1855B5B4A1; Fri, 30 Oct 2020 09:26:44 +0000 (UTC) Date: Fri, 30 Oct 2020 09:26:42 +0000 From: Daniel =?utf-8?B?UC4gQmVycmFuZ8Op?= To: Antti Antinoja Subject: Re: Live migration not possible from 5.0 to 5.1? Message-ID: <20201030092642.GD99222@redhat.com> References: <20201030120218.57ce841be22970274491be08@fennosys.fi> MIME-Version: 1.0 In-Reply-To: <20201030120218.57ce841be22970274491be08@fennosys.fi> User-Agent: Mutt/1.14.6 (2020-07-11) X-Scanned-By: MIMEDefang 2.79 on 10.5.11.11 Authentication-Results: relay.mimecast.com; auth=pass smtp.auth=CUSA124A263 smtp.mailfrom=berrange@redhat.com X-Mimecast-Spam-Score: 0 X-Mimecast-Originator: redhat.com Content-Type: text/plain; charset=utf-8 Content-Disposition: inline Received-SPF: pass client-ip=216.205.24.124; envelope-from=berrange@redhat.com; helo=us-smtp-delivery-124.mimecast.com X-detected-operating-system: by eggs.gnu.org: First seen = 2020/10/30 02:24:40 X-ACL-Warn: Detected OS = Linux 2.2.x-3.x [generic] [fuzzy] X-Spam_score_int: -20 X-Spam_score: -2.1 X-Spam_bar: -- X-Spam_report: (-2.1 / 5.0 requ) BAYES_00=-1.9, DKIMWL_WL_HIGH=-0.001, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_NONE=-0.0001, RCVD_IN_MSPIKE_H4=0.001, RCVD_IN_MSPIKE_WL=0.001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Reply-To: Daniel =?utf-8?B?UC4gQmVycmFuZ8Op?= Cc: qemu-devel@nongnu.org Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: "Qemu-devel" On Fri, Oct 30, 2020 at 12:02:18PM +0800, Antti Antinoja wrote: > Hi All, > > I couldn't find any mention about live migration incompatibility between 5.0 and 5.1 in the release notes but at least on our AMD based platform live migration from 5.0 to 5.1 is not possible. > > The upgraded host had identical versions with it's pair before the upgrade was started: > * qemu 5.0.0-r2 > * kernel 5.7.17 > > After upgrade: > * qemu 5.1.0-r1 > * kernel 5.8.16 > > After reverting qemu back to 5.0.0-r2 migration worked normally. > > On the sending end "info migrate" shows: > (qemu) info migrate > info migrate > globals: > store-global-state: on > only-migratable: off > send-configuration: on > send-section-footer: on > decompress-error-check: on > clear-bitmap-shift: 18 > Migration status: failed (Unable to write to socket: Broken pipe) > total time: 0 milliseconds > > At least once the receiving end died (while running 5.1.0-r1). All attempts resulted a "Broken pipe" error on the sending (5.0.0-r2) end. You'll need to provide more information, most importantly how are you launching QEMU - if manually, what CLI args are you giving it. Regards, Daniel -- |: https://berrange.com -o- https://www.flickr.com/photos/dberrange :| |: https://libvirt.org -o- https://fstop138.berrange.com :| |: https://entangle-photo.org -o- https://www.instagram.com/dberrange :|