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=-0.7 required=3.0 tests=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 55215C432C0 for ; Thu, 28 Nov 2019 01:45:49 +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 28DA2215A5 for ; Thu, 28 Nov 2019 01:45:49 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 28DA2215A5 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=intel.com Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Received: from localhost ([::1]:44602 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1ia8sO-00049f-9R for qemu-devel@archiver.kernel.org; Wed, 27 Nov 2019 20:45:48 -0500 Received: from eggs.gnu.org ([2001:470:142:3::10]:52504) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1ia8qH-00024y-0Z for qemu-devel@nongnu.org; Wed, 27 Nov 2019 20:43:38 -0500 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1ia8aG-0003vl-Os for qemu-devel@nongnu.org; Wed, 27 Nov 2019 20:27:05 -0500 Received: from mga14.intel.com ([192.55.52.115]:63169) by eggs.gnu.org with esmtps (TLS1.0:DHE_RSA_AES_256_CBC_SHA1:32) (Exim 4.71) (envelope-from ) id 1ia8aG-0003ko-FJ for qemu-devel@nongnu.org; Wed, 27 Nov 2019 20:27:04 -0500 X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False Received: from orsmga003.jf.intel.com ([10.7.209.27]) by fmsmga103.fm.intel.com with ESMTP/TLS/DHE-RSA-AES256-GCM-SHA384; 27 Nov 2019 17:26:57 -0800 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.69,251,1571727600"; d="scan'208";a="211859490" Received: from fmsmsx108.amr.corp.intel.com ([10.18.124.206]) by orsmga003.jf.intel.com with ESMTP; 27 Nov 2019 17:26:57 -0800 Received: from fmsmsx609.amr.corp.intel.com (10.18.126.89) by FMSMSX108.amr.corp.intel.com (10.18.124.206) with Microsoft SMTP Server (TLS) id 14.3.439.0; Wed, 27 Nov 2019 17:26:53 -0800 Received: from fmsmsx609.amr.corp.intel.com (10.18.126.89) by fmsmsx609.amr.corp.intel.com (10.18.126.89) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.1713.5; Wed, 27 Nov 2019 17:26:52 -0800 Received: from shsmsx103.ccr.corp.intel.com (10.239.4.69) by fmsmsx609.amr.corp.intel.com (10.18.126.89) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256) id 15.1.1713.5 via Frontend Transport; Wed, 27 Nov 2019 17:26:52 -0800 Received: from shsmsx102.ccr.corp.intel.com ([169.254.2.108]) by SHSMSX103.ccr.corp.intel.com ([169.254.4.60]) with mapi id 14.03.0439.000; Thu, 28 Nov 2019 09:26:50 +0800 From: "Zhang, Chen" To: "Dr. David Alan Gilbert" , Daniel Cho , "lukasstraub2@web.de" Subject: RE: Network connection with COLO VM Thread-Topic: Network connection with COLO VM Thread-Index: AQHVpNpTPcqw102+1EeSLCuWtdaGTKeeUWSAgACH4yA= Date: Thu, 28 Nov 2019 01:26:50 +0000 Message-ID: <9CFF81C0F6B98A43A459C9EDAD400D780631A02A@shsmsx102.ccr.corp.intel.com> References: <20191127105121.GA3017@work-vm> In-Reply-To: <20191127105121.GA3017@work-vm> Accept-Language: en-US Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: dlp-product: dlpe-windows dlp-version: 11.2.0.6 dlp-reaction: no-action x-ctpclassification: CTP_NT x-titus-metadata-40: eyJDYXRlZ29yeUxhYmVscyI6IiIsIk1ldGFkYXRhIjp7Im5zIjoiaHR0cDpcL1wvd3d3LnRpdHVzLmNvbVwvbnNcL0ludGVsMyIsImlkIjoiYzI3MmY1NzQtNmJjNy00OGI4LWJhMTUtNTJiY2M1NmZjOWM1IiwicHJvcHMiOlt7Im4iOiJDVFBDbGFzc2lmaWNhdGlvbiIsInZhbHMiOlt7InZhbHVlIjoiQ1RQX05UIn1dfV19LCJTdWJqZWN0TGFiZWxzIjpbXSwiVE1DVmVyc2lvbiI6IjE3LjEwLjE4MDQuNDkiLCJUcnVzdGVkTGFiZWxIYXNoIjoieWhqVFlMcHMzNWVQVTVFUThXNWZINHhXaWhJZVZGb2xPTyszUlAzRUd4MEh4ZFF3T2srYVdwSG4yeEtZcFwvSWcifQ== x-originating-ip: [10.239.127.40] Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: quoted-printable MIME-Version: 1.0 X-detected-operating-system: by eggs.gnu.org: Genre and OS details not recognized. X-Received-From: 192.55.52.115 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" > -----Original Message----- > From: Dr. David Alan Gilbert > Sent: Wednesday, November 27, 2019 6:51 PM > To: Daniel Cho ; Zhang, Chen > ; lukasstraub2@web.de > Cc: qemu-devel@nongnu.org > Subject: Re: Network connection with COLO VM >=20 > * Daniel Cho (danielcho@qnap.com) wrote: > > Hello everyone, > > > > Could we ssh to colo VM (means PVM & SVM are starting)? > > >=20 > Lets cc in Zhang Chen and Lukas Straub. Thanks Dave. >=20 > > SSH will connect to colo VM for a while, but it will disconnect with > > error > > *client_loop: send disconnect: Broken pipe* > > > > It seems to colo VM could not keep network session. > > > > Does it be a known issue? >=20 > That sounds like the COLO proxy is getting upset; it's supposed to compar= e > packets sent by the primary and secondary and only send one to the outsid= e > - you shouldn't be talking directly to the guest, but always via the prox= y. See > docs/colo-proxy.txt >=20 Hi Daniel, I have try ssh to COLO guest with 8 hours, not occurred this issue. Please check your network/qemu configuration. But I found another problem maybe related this issue, if no network communi= cation for a period of time(maybe 10min), the first message send to guest h= ave a chance with delay(maybe 1-5 sec), I will try to fix it when I have ti= me. Thanks Zhang Chen > Dave >=20 > > Best Regard, > > Daniel Cho > -- > Dr. David Alan Gilbert / dgilbert@redhat.com / Manchester, UK