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=-5.2 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS, USER_AGENT_SANE_1 autolearn=no 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 DE643C433B4 for ; Fri, 23 Apr 2021 14:57:20 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id A5BA260724 for ; Fri, 23 Apr 2021 14:57:20 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S238411AbhDWO54 (ORCPT ); Fri, 23 Apr 2021 10:57:56 -0400 Received: from elvis.franken.de ([193.175.24.41]:38697 "EHLO elvis.franken.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229454AbhDWO5z (ORCPT ); Fri, 23 Apr 2021 10:57:55 -0400 Received: from uucp (helo=alpha) by elvis.franken.de with local-bsmtp (Exim 3.36 #1) id 1lZxF0-0003RE-00; Fri, 23 Apr 2021 16:57:10 +0200 Received: by alpha.franken.de (Postfix, from userid 1000) id 31E1CC0B3B; Fri, 23 Apr 2021 16:51:31 +0200 (CEST) Date: Fri, 23 Apr 2021 16:51:31 +0200 From: Thomas Bogendoerfer To: Zhou Yanjie Cc: Huang Pei , linux-mips@vger.kernel.org, linux-kernel@vger.kernel.org, akpm@linux-foundation.org, paul.burton@mips.com, paul@crapouillou.net, siyanteng@loongson.cn, ira.weiny@intel.com, yangtiezhu@loongson.cn, jun.jiang@ingenic.com, dongsheng.qiu@ingenic.com, aric.pzqi@ingenic.com, rick.tyliu@ingenic.com, sernia.zhou@foxmail.com, sihui.liu@ingenic.com Subject: Re: [PATCH] Revert "MIPS: make userspace mapping young by default". Message-ID: <20210423145131.GA11112@alpha.franken.de> References: <1618562868-91115-1-git-send-email-zhouyanjie@wanyeetech.com> <20210416092003.5754967.19768.9603@loongson.cn> <20210419045610.frhzxskec47s5rmq@ambrosehua-HP-xw6600-Workstation> <13e37741-c1b4-2aae-471e-0790adc8db59@wanyeetech.com> <20210420024818.r6jf243oglb2ywbr@ambrosehua-HP-xw6600-Workstation> MIME-Version: 1.0 Content-Type: text/plain; charset=iso-8859-1 Content-Disposition: inline Content-Transfer-Encoding: 8bit In-Reply-To: User-Agent: Mutt/1.10.1 (2018-07-13) Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Tue, Apr 20, 2021 at 10:03:01PM +0800, Zhou Yanjie wrote: > Sorry for my carelessness, the log in the previous email was wrong, please > check the log in this email. > > [   53.684067] --- pte 1 = 07698685 any chance to print the virtual address to this pte ? > [   53.687376] --- pte 3 = 07698685 > [   53.737175] --- pte 1 = 07699685 > [   53.740412] --- pte 3 = 07699685 > [   53.744064] --- pte 1 = 076c3685 > [..] could you print PTE, which faults ? And what is mapped there ? so far I haven't seen any ill-effects of the (bisected ?) patch. The problem I have with reverting is that IMHO we re-introduce the bug, which this patch fixed. Thomas. -- Crap can work. Given enough thrust pigs will fly, but it's not necessarily a good idea. [ RFC1925, 2.3 ]