Received: by 2002:ac0:a5a7:0:0:0:0:0 with SMTP id m36-v6csp635497imm; Mon, 9 Jul 2018 08:01:58 -0700 (PDT) X-Google-Smtp-Source: AAOMgpewC+Ke9aGKlWnIWrUchcavtpZrj80MNdqtFrhSTwKc53WrqR9bhpa4fmQQuATgRJDpIbG8 X-Received: by 2002:a63:231a:: with SMTP id j26-v6mr19011005pgj.138.1531148518653; Mon, 09 Jul 2018 08:01:58 -0700 (PDT) ARC-Seal: i=1; a=rsa-sha256; t=1531148518; cv=none; d=google.com; s=arc-20160816; b=m1JZKv21T7/ThscHi4lczVnWTtzvISUNtEXbc7O2E+Gz9neDsFCsJ3FmmAzraIhjXa zMNyKOYc9hRSdB0d3xhUwTIK40UaK0WpPa2FW8V8rCzoUnMYSnzzoDlIT+HPxUGt0exC zAPOz/AUfY5n56r/HlO68vXoonOR90ZaV0PGAwYg4Hs+m4fX3J+IWICwZ4A/CvB+iNln cOeALYKGxPbyjgMwisRmMB4YD3toKdSN3aQpT7IQEk+Kjv/o3iuH3sbO0H7e/t5yOf9z phyQwDl9SWo6nDIRoxC+hGBJupBPHgCFfwzvXDV1VimwM9/mdxJkfHfoYHVMzR/cMOio TS7Q== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-id:precedence:sender:content-transfer-encoding:in-reply-to :mime-version:user-agent:date:message-id:from:references:cc:to :subject:reply-to:arc-authentication-results; bh=Qx4nRi8mVmf/v6gZh7W6QXClTtYMI+0zIan65XaDgFY=; b=HWc5nHqM6C8N3UF7whQccRssW00m1sejM/dYpF8YmP7gyWEbtL/BzDJl+gzoyHY8FH LWHv5InUl8qmcES+oY3V4Go/KPokSU3fv9jivf1nZEm8kBHgNQb1iSdCnQgp5uPWaBrR 6sUJqCvqiIm6aKua0RBgrYZ+BweVe0NkQyim6yR3GGgJ/ZYN5GgIWlbh9QOWimwhicWL 4z8gd5QcA+zX6JnIEkRBHK3btCaqV2G8orNpAVkOq2HCRNejilOxceoNCk4cLGQVsH4n 7FtJSepPnsuzPysG7HIitfopJFJDXpWcXfJj3vRI7n3nwouZ1tQnVFjEUa80Z5lun452 d+zQ== ARC-Authentication-Results: i=1; mx.google.com; spf=pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=fail (p=NONE sp=NONE dis=NONE) header.from=alibaba.com Return-Path: Received: from vger.kernel.org (vger.kernel.org. [209.132.180.67]) by mx.google.com with ESMTP id i7-v6si14216737plt.433.2018.07.09.08.01.43; Mon, 09 Jul 2018 08:01:58 -0700 (PDT) Received-SPF: pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) client-ip=209.132.180.67; Authentication-Results: mx.google.com; spf=pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=fail (p=NONE sp=NONE dis=NONE) header.from=alibaba.com Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S933271AbeGIPAR (ORCPT + 99 others); Mon, 9 Jul 2018 11:00:17 -0400 Received: from out30-133.freemail.mail.aliyun.com ([115.124.30.133]:44970 "EHLO out30-133.freemail.mail.aliyun.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S932903AbeGIPAP (ORCPT ); Mon, 9 Jul 2018 11:00:15 -0400 X-Alimail-AntiSpam: AC=PASS;BC=-1|-1;BR=01201311R921e4;CH=green;FP=0|-1|-1|-1|0|-1|-1|-1;HT=e01e04400;MF=xlpang@linux.alibaba.com;NM=1;PH=DS;RN=5;SR=0;TI=SMTPD_---0T4ILWfP_1531148410; Received: from xunleideMacBook-Pro.local(mailfrom:xlpang@linux.alibaba.com fp:SMTPD_---0T4ILWfP_1531148410) by smtp.aliyun-inc.com(127.0.0.1); Mon, 09 Jul 2018 23:00:10 +0800 Reply-To: xlpang@linux.alibaba.com Subject: Re: [PATCH] sched/cputime: Ensure correct utime and stime proportion To: Peter Zijlstra Cc: Ingo Molnar , Frederic Weisbecker , Tejun Heo , linux-kernel@vger.kernel.org References: <20180622071542.61569-1-xlpang@linux.alibaba.com> <20180626154908.GE2458@hirez.programming.kicks-ass.net> <20180705104632.GE2494@hirez.programming.kicks-ass.net> <5a3354c1-d3fe-33dc-53cf-6eb621177052@linux.alibaba.com> <20180709104857.GK2476@hirez.programming.kicks-ass.net> From: Xunlei Pang Message-ID: <566b7d56-9139-a524-3108-54ba231f295c@linux.alibaba.com> Date: Mon, 9 Jul 2018 23:00:10 +0800 User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.12; rv:52.0) Gecko/20100101 Thunderbird/52.9.0 MIME-Version: 1.0 In-Reply-To: <20180709104857.GK2476@hirez.programming.kicks-ass.net> Content-Type: text/plain; charset=gbk Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Hi Peter, On 7/9/18 6:48 PM, Peter Zijlstra wrote: > On Mon, Jul 09, 2018 at 01:52:38PM +0800, Xunlei Pang wrote: >> Please see the enclosure for the reproducer cputime_adjust.tgz > > No, I'm not going to reverse engineer something if you cannot even > explain what the problem is. > I rewrote the whole changelog and sent v2, please have a look. Thanks, Xunlei