From mboxrd@z Thu Jan 1 00:00:00 1970 From: Avi Kivity Subject: Re: Why so many vm exits caused by ept violation Date: Mon, 15 Nov 2010 11:09:40 +0200 Message-ID: <4CE0F8D4.6090100@redhat.com> References: <4CD802AA.3040302@redhat.com> <20101109074550.GH9036@redhat.com> <20101109092727.GL9036@redhat.com> <20101109112428.GQ9036@redhat.com> <4CDA5748.70308@redhat.com> Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Cc: Gleb Natapov , kvm@vger.kernel.org To: lidong chen Return-path: Received: from mx1.redhat.com ([209.132.183.28]:14256 "EHLO mx1.redhat.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751547Ab0KOJJo (ORCPT ); Mon, 15 Nov 2010 04:09:44 -0500 In-Reply-To: Sender: kvm-owner@vger.kernel.org List-ID: On 11/15/2010 09:24 AM, lidong chen wrote: > the address is the Region 1 of virtio_net. > > why virtio_net use this address caused ept violation? It's probably the MSIX mask bit. Older kernels program this bit twice on every interrupt. Newer kernels do this much less frequently. Try with a new kernel and see. -- error compiling committee.c: too many arguments to function