From mboxrd@z Thu Jan 1 00:00:00 1970 From: Ian Campbell Subject: Re: [BUG] 16 vcpus + 2 vif bridge = issue ? Date: Thu, 24 Sep 2015 09:56:52 +0100 Message-ID: <1443085012.10338.246.camel@citrix.com> References: Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Sender: xen-devel-bounces@lists.xen.org Errors-To: xen-devel-bounces@lists.xen.org To: Roman Shubovich , xen-devel@lists.xen.org List-Id: xen-devel@lists.xenproject.org On Thu, 2015-09-24 at 03:16 +0300, Roman Shubovich wrote: > hi > > i have physical server with 40 cpu cores > and i need to create a hvm domu with at least 16 vcpus and 2 network > bridges > when i start that domu i have some not understable issue - the second > bridge has no traffic from network (works only first interface - first > declared in config file). i can see traffic with tcpdum on dom0, but not > on vif interface that has been created by domu startup script. > > when i reduce number of vcpu to 15 or less then bridges works fine Please post some logs: * dmesg of both host and guest * output of these commands in dom0 while the guest is running with 2 vifs configured (but only one working): * "brctl show" * "ifconfig -a" * The output of "ifconfig -a" within the guest in the same configuration. * The guest configuration file you are using. Thanks. Ian. > > system: > dom0 ubuntu 14.04.03 kernel 3.18.21 > domu ubuntu 14.04.03 kernel 3.18.21 > tried xen: > xen 4.4 > xen 4.5 > xen 4.6 > _______________________________________________ > Xen-devel mailing list > Xen-devel@lists.xen.org > http://lists.xen.org/xen-devel