Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753893Ab0LACQM (ORCPT ); Tue, 30 Nov 2010 21:16:12 -0500 Received: from cn.fujitsu.com ([222.73.24.84]:52615 "EHLO song.cn.fujitsu.com" rhost-flags-OK-FAIL-OK-OK) by vger.kernel.org with ESMTP id S1753441Ab0LACQL (ORCPT ); Tue, 30 Nov 2010 21:16:11 -0500 Message-ID: <4CF5B0F6.8030900@cn.fujitsu.com> Date: Wed, 01 Dec 2010 10:20:38 +0800 From: Xiao Guangrong User-Agent: Mozilla/5.0 (X11; U; Linux x86_64; en-US; rv:1.9.1.11) Gecko/20100713 Thunderbird/3.0.6 MIME-Version: 1.0 To: Gleb Natapov CC: Avi Kivity , Marcelo Tosatti , LKML , KVM Subject: Re: [PATCH v3 2/3] KVM: MMU: fix accessed bit set on prefault path References: <4CF4C535.8080405@cn.fujitsu.com> <4CF4C587.7080000@cn.fujitsu.com> <20101130132915.GG2187@redhat.com> <4CF52BC6.9020401@cn.fujitsu.com> <20101130175005.GA2924@redhat.com> <4CF53F41.1040503@cn.fujitsu.com> <20101130183833.GB2924@redhat.com> <4CF54C4F.80901@cn.fujitsu.com> <20101130192059.GC2924@redhat.com> In-Reply-To: <20101130192059.GC2924@redhat.com> X-MIMETrack: Itemize by SMTP Server on mailserver/fnst(Release 8.5.1FP4|July 25, 2010) at 2010-12-01 10:16:17, Serialize by Router on mailserver/fnst(Release 8.5.1FP4|July 25, 2010) at 2010-12-01 10:16:20, Serialize complete at 2010-12-01 10:16:20 Content-Transfer-Encoding: 7bit Content-Type: text/plain; charset=UTF-8 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 603 Lines: 16 On 12/01/2010 03:20 AM, Gleb Natapov wrote: > Firs of all if guest is PV the guest process cannot be killed. Second > why is it a problem that we marked pfn as accessed on speculative path? > What problem it causes especially since it is very likely that the page > will be accessed shortly anyway? > Hi Avi, Marcelo, What is your opinion on this point? -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/