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=-2.4 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI, SPF_HELO_NONE,SPF_PASS,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 2C262C432C0 for ; Wed, 27 Nov 2019 10:52:52 +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 E8C97206BF for ; Wed, 27 Nov 2019 10:52:51 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (1024-bit key) header.d=redhat.com header.i=@redhat.com header.b="aL3Gphdk" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org E8C97206BF 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]:36914 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1iZuwF-0007Lw-4J for qemu-devel@archiver.kernel.org; Wed, 27 Nov 2019 05:52:51 -0500 Received: from eggs.gnu.org ([2001:470:142:3::10]:37567) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1iZuv4-0006Ga-3L for qemu-devel@nongnu.org; Wed, 27 Nov 2019 05:51:39 -0500 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1iZuuz-0003XR-D6 for qemu-devel@nongnu.org; Wed, 27 Nov 2019 05:51:37 -0500 Received: from us-smtp-delivery-1.mimecast.com ([205.139.110.120]:39734 helo=us-smtp-1.mimecast.com) by eggs.gnu.org with esmtps (TLS1.0:DHE_RSA_AES_256_CBC_SHA1:32) (Exim 4.71) (envelope-from ) id 1iZuux-0003W4-K5 for qemu-devel@nongnu.org; Wed, 27 Nov 2019 05:51:31 -0500 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1574851889; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=/Br8Ybj1SQ1U8Q1fTxY9T9GmdVVUVRLeIcs10Q2OO5E=; b=aL3GphdkLYmeXgCmcu/W56wrxd0vB6mr33a17ngwul+B5+4MXFB/rpG+yu7JiKkqDl3ASb FlJ60Tr6PvNxuYlt2dnsmm7MQtc3Tr7OnZ0LLBA8Qw5bLN05vzexwD5E5wf39LSD2Ryzg5 GLhDzsosArKjanE9aRfsUXuD4cFo9FA= 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-6-5uPi27aTOdCbmwahSCEcRQ-1; Wed, 27 Nov 2019 05:51:26 -0500 Received: from smtp.corp.redhat.com (int-mx07.intmail.prod.int.phx2.redhat.com [10.5.11.22]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mimecast-mx01.redhat.com (Postfix) with ESMTPS id 2BC601856A8E; Wed, 27 Nov 2019 10:51:25 +0000 (UTC) Received: from work-vm (unknown [10.36.118.46]) by smtp.corp.redhat.com (Postfix) with ESMTPS id 291631001DE1; Wed, 27 Nov 2019 10:51:23 +0000 (UTC) Date: Wed, 27 Nov 2019 10:51:21 +0000 From: "Dr. David Alan Gilbert" To: Daniel Cho , chen.zhang@intel.com, lukasstraub2@web.de Subject: Re: Network connection with COLO VM Message-ID: <20191127105121.GA3017@work-vm> References: MIME-Version: 1.0 In-Reply-To: User-Agent: Mutt/1.12.1 (2019-06-15) X-Scanned-By: MIMEDefang 2.84 on 10.5.11.22 X-MC-Unique: 5uPi27aTOdCbmwahSCEcRQ-1 X-Mimecast-Spam-Score: 0 Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: quoted-printable Content-Disposition: inline X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.2.x-3.x [generic] [fuzzy] X-Received-From: 205.139.110.120 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: , Cc: qemu-devel@nongnu.org Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: "Qemu-devel" * Daniel Cho (danielcho@qnap.com) wrote: > Hello everyone, >=20 > Could we ssh to colo VM (means PVM & SVM are starting)? >=20 Lets cc in Zhang Chen and Lukas Straub. > SSH will connect to colo VM for a while, but it will disconnect with erro= r > *client_loop: send disconnect: Broken pipe* >=20 > It seems to colo VM could not keep network session. >=20 > Does it be a known issue? That sounds like the COLO proxy is getting upset; it's supposed to compare packets sent by the primary and secondary and only send one to the outside - you shouldn't be talking directly to the guest, but always via the proxy. See docs/colo-proxy.txt Dave > Best Regard, > Daniel Cho -- Dr. David Alan Gilbert / dgilbert@redhat.com / Manchester, UK