From mboxrd@z Thu Jan 1 00:00:00 1970 From: Avi Kivity Subject: Re: Guest OS lock up with 100% cpu usage when using tap Date: Wed, 19 Sep 2007 19:49:45 +0200 Message-ID: <46F16139.80400@qumranet.com> References: <9a1a10a40709190930q549e5c73peacd0a1a1556ea14@mail.gmail.com> <46F15193.3090309@qumranet.com> <9a1a10a40709191018r78013446lb6bd3f280c708052@mail.gmail.com> <46F15AA8.8030304@qumranet.com> <9a1a10a40709191048w6ad0af3es8960e98dc08df2f5@mail.gmail.com> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Cc: kvm-devel-5NWGOfrQmneRv+LV9MX5uipxlwaOVQ5f@public.gmane.org To: Daniel Paquet Return-path: In-Reply-To: <9a1a10a40709191048w6ad0af3es8960e98dc08df2f5-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org> List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: kvm-devel-bounces-5NWGOfrQmneRv+LV9MX5uipxlwaOVQ5f@public.gmane.org Errors-To: kvm-devel-bounces-5NWGOfrQmneRv+LV9MX5uipxlwaOVQ5f@public.gmane.org List-Id: kvm.vger.kernel.org Daniel Paquet wrote: > Well well, that did it!!! > > For now I even restarted my host machine and the guest os boots > flawlessly now with taskset! Oh well, I now know a new nice linux app > taskset :) > > I saw similar problems with some games under windows, that you had to > set the affinity to a specific core, if not you were getting those > kind of small hang, like I was having with kvm and my guest machines. > > And you guessed right I have a dual core cpu. > > Anyone have an idea why this is only happening when using a tap > network interface? I am curious... No idea. Can you try one more thing? -no-kvm-irqchip, but no taskset. I'm trying to find out if the smp issue is with the apic code or elsewhere. -- error compiling committee.c: too many arguments to function ------------------------------------------------------------------------- This SF.net email is sponsored by: Microsoft Defy all challenges. Microsoft(R) Visual Studio 2005. http://clk.atdmt.com/MRT/go/vse0120000070mrt/direct/01/