From mboxrd@z Thu Jan 1 00:00:00 1970 From: Takuya Yoshikawa Subject: Re: [PATCH for 3.3] KVM: Fix write protection race during dirty logging Date: Mon, 06 Feb 2012 14:12:38 +0900 Message-ID: <4F2F6146.8070804@oss.ntt.co.jp> References: <20120205204241.54f16069c7f10ac7524c55ec@gmail.com> <4F2F4B99.6050902@linux.vnet.ibm.com> <4F2F4D06.8020303@oss.ntt.co.jp> <4F2F4EB6.4040105@linux.vnet.ibm.com> <4F2F5EE2.5080703@linux.vnet.ibm.com> Mime-Version: 1.0 Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit Cc: Takuya Yoshikawa , avi@redhat.com, mtosatti@redhat.com, kvm@vger.kernel.org To: Xiao Guangrong Return-path: Received: from serv2.oss.ntt.co.jp ([222.151.198.100]:59698 "EHLO serv2.oss.ntt.co.jp" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750708Ab2BFFKs (ORCPT ); Mon, 6 Feb 2012 00:10:48 -0500 In-Reply-To: <4F2F5EE2.5080703@linux.vnet.ibm.com> Sender: kvm-owner@vger.kernel.org List-ID: (2012/02/06 14:02), Xiao Guangrong wrote: > I am worrying if other paths(such as like kvm_mmu_notifier_invalidate_page) > which unmap/modify writeable ptes and flush TLBs out of mmu lock have the > same problem? > Yes, I think so ... (long standing bug?) Let's ask Avi if he prefers to fix it separately then! Takuya