From mboxrd@z Thu Jan 1 00:00:00 1970 From: Ben Pfaff Subject: Re: [GIT PULL v2] Open vSwitch Date: Mon, 28 Nov 2011 08:04:00 -0800 Message-ID: <20111128160400.GB6349@nicira.com> References: <20111123075433.GA7928@gondor.apana.org.au> <1322050976.2039.125.camel@mojatatu> <20111128130409.GB16828@gondor.apana.org.au> <0199E0D51A61344794750DC57738F58E7586A74137@GVW1118EXC.americas.hpqcorp.net> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Cc: "dev-yBygre7rU0TnMu66kgdUjQ@public.gmane.org" , "netdev-u79uwXL29TY76Z2rM5mHXA@public.gmane.org" , David Miller , Herbert Xu , "jhs-jkUAjuhPggJWk0Htik3J/w@public.gmane.org" To: "Fischer, Anna" Return-path: Content-Disposition: inline In-Reply-To: <0199E0D51A61344794750DC57738F58E7586A74137-1IhDuF6AwYvulpxXP3Mx0dVKv6DIAtwysh7EHKopUjU@public.gmane.org> List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: dev-bounces-yBygre7rU0TnMu66kgdUjQ@public.gmane.org Errors-To: dev-bounces-yBygre7rU0TnMu66kgdUjQ@public.gmane.org List-Id: netdev.vger.kernel.org On Mon, Nov 28, 2011 at 01:54:16PM +0000, Fischer, Anna wrote: > Yes, I mentioned this months ago, and I am surprised this critical > issue has never been picked up on and addressed. With a flaw like this > there is no chance this component can be used in any serious > virtualization deployment where different customers share the same > physical server. It was addressed, by introducing additional queues and using them in userspace. This is documented in NEWS: - Flow setups are now processed in a round-robin manner across ports to prevent any single client from monopolizing the CPU and conducting a denial of service attack.