From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-0.8 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,SPF_PASS autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 4943BC3279B for ; Wed, 4 Jul 2018 09:20:53 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 0AC1D21A12 for ; Wed, 4 Jul 2018 09:20:53 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 0AC1D21A12 Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=linutronix.de Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-kernel-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S933922AbeGDJUt (ORCPT ); Wed, 4 Jul 2018 05:20:49 -0400 Received: from Galois.linutronix.de ([146.0.238.70]:46696 "EHLO Galois.linutronix.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S932576AbeGDJUr (ORCPT ); Wed, 4 Jul 2018 05:20:47 -0400 Received: from p4fea482e.dip0.t-ipconnect.de ([79.234.72.46] helo=nanos) by Galois.linutronix.de with esmtpsa (TLS1.2:DHE_RSA_AES_256_CBC_SHA256:256) (Exim 4.80) (envelope-from ) id 1fadxl-0002wX-IA; Wed, 04 Jul 2018 11:20:37 +0200 Date: Wed, 4 Jul 2018 11:20:37 +0200 (CEST) From: Thomas Gleixner To: "Yang, Bin" cc: "mingo@kernel.org" , "hpa@zytor.com" , "linux-kernel@vger.kernel.org" , "peterz@infradead.org" , "x86@kernel.org" Subject: Re: [PATCH] x86/mm: fix cpu stuck issue in __change_page_attr_set_clr In-Reply-To: <3224aae1d09788aba687fd7bd9e088f233016fc8.camel@intel.com> Message-ID: References: <1530180340-18593-1-git-send-email-bin.yang@intel.com> <0131cecd5d0456c2a109f4b8bdbfe558389671dd.camel@intel.com> <3224aae1d09788aba687fd7bd9e088f233016fc8.camel@intel.com> User-Agent: Alpine 2.21 (DEB 202 2017-01-01) MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII X-Linutronix-Spam-Score: -1.0 X-Linutronix-Spam-Level: - X-Linutronix-Spam-Status: No , -1.0 points, 5.0 required, ALL_TRUSTED=-1,SHORTCIRCUIT=-0.0001 Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Wed, 4 Jul 2018, Yang, Bin wrote: > You are completely right. After considering, I think my patch is like a > workaround but not real fix. I am trying to re-write a new patch > without cache implementation. Care to explain the actual problem coherently _before_ writing yet another patch? Thanks, tglx