From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753757Ab3L3DAI (ORCPT ); Sun, 29 Dec 2013 22:00:08 -0500 Received: from cn.fujitsu.com ([222.73.24.84]:53342 "EHLO song.cn.fujitsu.com" rhost-flags-OK-FAIL-OK-OK) by vger.kernel.org with ESMTP id S1753476Ab3L3DAG (ORCPT ); Sun, 29 Dec 2013 22:00:06 -0500 X-IronPort-AV: E=Sophos;i="4.95,571,1384272000"; d="scan'208";a="9348408" Message-ID: <52C19209.7060404@cn.fujitsu.com> Date: Mon, 30 Dec 2013 10:32:25 -0500 From: Dongsheng Yang User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:17.0) Gecko/20130612 Thunderbird/17.0.6 MIME-Version: 1.0 To: David Ahern CC: acme@ghostprotocols.net, linux-kernel@vger.kernel.org, mingo@kernel.org, namhyung.kim@lge.com, jolsa@redhat.com Subject: Re: [PATCH 0/7 V2] Add support of user space symboles for guest. References: <52B45BF6.1060701@gmail.com> In-Reply-To: <52B45BF6.1060701@gmail.com> X-MIMETrack: Itemize by SMTP Server on mailserver/fnst(Release 8.5.3|September 15, 2011) at 2013/12/30 10:33:38, Serialize by Router on mailserver/fnst(Release 8.5.3|September 15, 2011) at 2013/12/30 10:34:02, Serialize complete at 2013/12/30 10:34:02 Content-Transfer-Encoding: 7bit Content-Type: text/plain; charset=ISO-8859-1; format=flowed Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 12/20/2013 10:02 AM, David Ahern wrote: > On 12/20/13, 1:52 PM, Dongsheng Yang wrote: >> Hi Arnaldo: >> Please help to review this patchset. >> >> Changelog: >> - v2: >> * splite the first commit. >> > > At best you are creating knowledge of running tasks in the VMs when > the perf session is started. That's it. That information cannot be > used since the host has no idea what task is running in a VM at any > given moment. No insight into process creation, mmaps, exits, etc. > Yes, you are right. host has no idea what task is running in a VM. Thanx for your reply. Yang > David > > -- > 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/ >