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=-3.8 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS 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 D727EC433E0 for ; Sat, 9 Jan 2021 04:30:48 +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 88DBA23A01 for ; Sat, 9 Jan 2021 04:30:48 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 88DBA23A01 Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=bugs.launchpad.net Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Received: from localhost ([::1]:39062 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1ky5tn-00058l-NP for qemu-devel@archiver.kernel.org; Fri, 08 Jan 2021 23:30:47 -0500 Received: from eggs.gnu.org ([2001:470:142:3::10]:41386) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1ky5po-0008NZ-Ma for qemu-devel@nongnu.org; Fri, 08 Jan 2021 23:26:40 -0500 Received: from indium.canonical.com ([91.189.90.7]:47242) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_128_GCM_SHA256:128) (Exim 4.90_1) (envelope-from ) id 1ky5pm-0006zq-V3 for qemu-devel@nongnu.org; Fri, 08 Jan 2021 23:26:40 -0500 Received: from loganberry.canonical.com ([91.189.90.37]) by indium.canonical.com with esmtp (Exim 4.86_2 #2 (Debian)) id 1ky5pj-0007QW-5d for ; Sat, 09 Jan 2021 04:26:35 +0000 Received: from loganberry.canonical.com (localhost [127.0.0.1]) by loganberry.canonical.com (Postfix) with ESMTP id 382ED2E8183 for ; Sat, 9 Jan 2021 04:26:32 +0000 (UTC) MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable Date: Sat, 09 Jan 2021 04:17:49 -0000 From: Launchpad Bug Tracker <1702798@bugs.launchpad.net> To: qemu-devel@nongnu.org X-Launchpad-Notification-Type: bug X-Launchpad-Bug: product=qemu; status=Expired; importance=Undecided; assignee=None; X-Launchpad-Bug-Information-Type: Public X-Launchpad-Bug-Private: no X-Launchpad-Bug-Security-Vulnerability: no X-Launchpad-Bug-Commenters: janitor pork-prince th-huth zhangckid X-Launchpad-Bug-Reporter: junchi (pork-prince) X-Launchpad-Bug-Modifier: Launchpad Janitor (janitor) References: <149938892775.6469.8247493589075671817.malonedeb@gac.canonical.com> Message-Id: <161016586960.8490.16858482182263283941.malone@loganberry.canonical.com> Subject: [Bug 1702798] Re: colo: secondary vm can't receive any packet X-Launchpad-Message-Rationale: Subscriber (QEMU) @qemu-devel-ml X-Launchpad-Message-For: qemu-devel-ml Precedence: bulk X-Generated-By: Launchpad (canonical.com); Revision="fd9c5a87183d01004404fa6027cd262eaa7f6fcf"; Instance="production" X-Launchpad-Hash: a3c61a25505d8aa42c903dde988a6da045a52fae Received-SPF: none client-ip=91.189.90.7; envelope-from=bounces@canonical.com; helo=indium.canonical.com X-Spam_score_int: -65 X-Spam_score: -6.6 X-Spam_bar: ------ X-Spam_report: (-6.6 / 5.0 requ) BAYES_00=-1.9, HEADER_FROM_DIFFERENT_DOMAINS=0.248, RCVD_IN_DNSWL_HI=-5, RCVD_IN_MSPIKE_H3=0.001, RCVD_IN_MSPIKE_WL=0.001, SPF_HELO_NONE=0.001, SPF_NONE=0.001 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.23 List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Reply-To: Bug 1702798 <1702798@bugs.launchpad.net> Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: "Qemu-devel" [Expired for QEMU because there has been no activity for 60 days.] ** Changed in: qemu Status: Incomplete =3D> Expired -- = You received this bug notification because you are a member of qemu- devel-ml, which is subscribed to QEMU. https://bugs.launchpad.net/bugs/1702798 Title: colo: secondary vm can't receive any packet Status in QEMU: Expired Bug description: Following document 'COLO-FT.txt', I test colo feature on my hosts. It see= ms goes well,but I found the secondary vm can't receive any packets. I atta= ched the process and find out the reason as follow, the filter-redirector(r= ed0) didn't flush it's queue because the secondary vm in migrate state(RUN_= STATE_INMIGRATE) : int qemu_can_send_packet(NetClientState *sender) { int vm_running =3D runstate_is_running(): if (!vm_running) { // it will return false on the secondary vm return 0; } ------ } How does it produce outbound packets in the secondary vm as it in migrate= state? static void *qemu_kvm_cpu_thread_fn(void *arg) { ------ do { if (cpu_can_run(cpu)) { // it will return false on the secon= dary vm r =3D kvm_cpu_exec(cpu); ------ } To manage notifications about this bug go to: https://bugs.launchpad.net/qemu/+bug/1702798/+subscriptions