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, URIBL_BLOCKED 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 83514C388F7 for ; Mon, 9 Nov 2020 18:22:02 +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 BEFB2206A1 for ; Mon, 9 Nov 2020 18:22:01 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org BEFB2206A1 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]:49998 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1kcBnk-0008JA-PA for qemu-devel@archiver.kernel.org; Mon, 09 Nov 2020 13:22:00 -0500 Received: from eggs.gnu.org ([2001:470:142:3::10]:51090) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1kcBmq-0007UJ-Aj for qemu-devel@nongnu.org; Mon, 09 Nov 2020 13:21:04 -0500 Received: from indium.canonical.com ([91.189.90.7]:55642) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_128_GCM_SHA256:128) (Exim 4.90_1) (envelope-from ) id 1kcBmo-0006Qe-5d for qemu-devel@nongnu.org; Mon, 09 Nov 2020 13:21:03 -0500 Received: from loganberry.canonical.com ([91.189.90.37]) by indium.canonical.com with esmtp (Exim 4.86_2 #2 (Debian)) id 1kcBml-0004RP-DI for ; Mon, 09 Nov 2020 18:20:59 +0000 Received: from loganberry.canonical.com (localhost [127.0.0.1]) by loganberry.canonical.com (Postfix) with ESMTP id DC2C42E8147 for ; Mon, 9 Nov 2020 18:20:58 +0000 (UTC) MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable Date: Mon, 09 Nov 2020 18:07:32 -0000 From: Thomas Huth <1702798@bugs.launchpad.net> To: qemu-devel@nongnu.org X-Launchpad-Notification-Type: bug X-Launchpad-Bug: product=qemu; status=Incomplete; 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: pork-prince th-huth zhangckid X-Launchpad-Bug-Reporter: junchi (pork-prince) X-Launchpad-Bug-Modifier: Thomas Huth (th-huth) References: <149938892775.6469.8247493589075671817.malonedeb@gac.canonical.com> Message-Id: <160494525270.18461.660763711564796894.malone@soybean.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="e39939c02bd86af4202bc6e2123a7708215ec8ea"; Instance="production" X-Launchpad-Hash: c7577bc6ba16c54457814fe7b32c5c50ce041bf1 Received-SPF: none client-ip=91.189.90.7; envelope-from=bounces@canonical.com; helo=indium.canonical.com X-detected-operating-system: by eggs.gnu.org: First seen = 2020/11/09 11:16:03 X-ACL-Warn: Detected OS = Linux 3.11 and newer [fuzzy] 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=0.249, 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" The QEMU project is currently considering to move its bug tracking to anoth= er system. For this we need to know which bugs are still valid and which co= uld be closed already. Thus we are setting older bugs to "Incomplete" now. If you still think this bug report here is valid, then please switch the st= ate back to "New" within the next 60 days, otherwise this report will be ma= rked as "Expired". Thank you and sorry for the inconvenience. ** Changed in: qemu Status: New =3D> Incomplete -- = 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: Incomplete 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