From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mga14.intel.com (mga14.intel.com [192.55.52.115]) by dpdk.org (Postfix) with ESMTP id A1B03378E for ; Wed, 25 May 2016 17:32:26 +0200 (CEST) Received: from fmsmga004.fm.intel.com ([10.253.24.48]) by fmsmga103.fm.intel.com with ESMTP; 25 May 2016 08:32:25 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.26,364,1459839600"; d="scan'208";a="110340100" Received: from fmsmsx103.amr.corp.intel.com ([10.18.124.201]) by fmsmga004.fm.intel.com with ESMTP; 25 May 2016 08:32:25 -0700 Received: from fmsmsx124.amr.corp.intel.com (10.18.125.39) by FMSMSX103.amr.corp.intel.com (10.18.124.201) with Microsoft SMTP Server (TLS) id 14.3.248.2; Wed, 25 May 2016 08:32:25 -0700 Received: from shsmsx104.ccr.corp.intel.com (10.239.4.70) by fmsmsx124.amr.corp.intel.com (10.18.125.39) with Microsoft SMTP Server (TLS) id 14.3.248.2; Wed, 25 May 2016 08:32:25 -0700 Received: from shsmsx101.ccr.corp.intel.com ([169.254.1.148]) by SHSMSX104.ccr.corp.intel.com ([10.239.4.70]) with mapi id 14.03.0248.002; Wed, 25 May 2016 23:32:23 +0800 From: "Xie, Huawei" To: Christian Ehrhardt , =?iso-2022-jp?B?TWFydGlueCAtIBskQiU4JSchPCVgJTobKEI=?= CC: "" , dev Thread-Topic: [dpdk-dev] Crashing OVS+DPDK at the host, from inside of a KVM Guest Thread-Index: AdG2mqGNgcdYjTp+TwCBOHVXvhx56Q== Date: Wed, 25 May 2016 15:32:22 +0000 Message-ID: References: Accept-Language: en-US Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: x-originating-ip: [10.239.127.40] Content-Type: text/plain; charset="iso-2022-jp" Content-Transfer-Encoding: quoted-printable MIME-Version: 1.0 Subject: Re: [dpdk-dev] Crashing OVS+DPDK at the host, from inside of a KVM Guest X-BeenThere: dev@dpdk.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: patches and discussions about DPDK List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 25 May 2016 15:32:27 -0000 On 5/25/2016 2:06 PM, Christian Ehrhardt wrote:=0A= > Hi,=0A= > ping ...=0A= >=0A= > Later on I want to look at it again once we upgraded to more recent=0A= > releases of the software components involved, but those have to be made= =0A= > ready to use first :-/=0A= >=0A= > But the description is good and I wonder if anybody else could reproduce= =0A= > this and/or would have a hint on where this might come from or already=0A= > existing related fixes.=0A= >=0A= > I mean in general nothing should be able to crash the host right?=0A= =0A= Yes, we are taking care of these issues to avoid malicious or buggy=0A= guest driver to corrupt vhost.=0A= We have fixed some issues, and would continue to check if there are=0A= other potential issues.=0A= =0A= >=0A= >=0A= > P.S. yeah two list cross posting, but it is yet unclear which it belongs = to=0A= > so I'll keep it=0A= >=0A= > Christian Ehrhardt=0A= > Software Engineer, Ubuntu Server=0A= > Canonical Ltd=0A= >=0A= > On Sun, May 15, 2016 at 7:08 AM, Martinx - =1B$B%8%'!<%`%:=1B(B =0A= > wrote:=0A= >=0A= >> Guys,=0A= >>=0A= >> If using OVS 2.5 with DPDK 2.2, on Ubuntu Xenial, it is possible to cra= sh=0A= >> the OVS running at the host, from inside of a KVM Guest.=0A= >>=0A= >> Basically, what I'm trying to do, is to run OVS+DPDK at the host, and= =0A= >> also, inside of a KVM Guest, with multi-queue, but it doesn't work and= =0A= >> crashes.=0A= >>=0A= >> Soon as you enable multi-queue at the guest, it crashes the OVS of the= =0A= >> host!=0A= >>=0A= >> OVS+DPDK segfault at the host, after running "ovs-vsctl set Open_vSwitch= .=0A= >> other_config:n-dpdk-rxqs=3D4" within a KVM Guest:=0A= >>=0A= >> https://bugs.launchpad.net/ubuntu/+source/openvswitch/+bug/1577088=0A= >>=0A= >> Thanks!=0A= >> Thiago=0A= >>=0A= =0A=