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=-10.3 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI,NICE_REPLY_A, SPF_HELO_NONE,SPF_PASS,USER_AGENT_SANE_1 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 B1B14C6379D for ; Thu, 19 Nov 2020 17:20:27 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 5F7C92468B for ; Thu, 19 Nov 2020 17:20:27 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728145AbgKSRUO (ORCPT ); Thu, 19 Nov 2020 12:20:14 -0500 Received: from pegase1.c-s.fr ([93.17.236.30]:12009 "EHLO pegase1.c-s.fr" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726474AbgKSRUN (ORCPT ); Thu, 19 Nov 2020 12:20:13 -0500 Received: from localhost (mailhub1-int [192.168.12.234]) by localhost (Postfix) with ESMTP id 4CcRJT281zzB09Zn; Thu, 19 Nov 2020 18:20:09 +0100 (CET) X-Virus-Scanned: Debian amavisd-new at c-s.fr Received: from pegase1.c-s.fr ([192.168.12.234]) by localhost (pegase1.c-s.fr [192.168.12.234]) (amavisd-new, port 10024) with ESMTP id GDt-2XrDYLSx; Thu, 19 Nov 2020 18:20:09 +0100 (CET) Received: from messagerie.si.c-s.fr (messagerie.si.c-s.fr [192.168.25.192]) by pegase1.c-s.fr (Postfix) with ESMTP id 4CcRJT1FSgzB09Zm; Thu, 19 Nov 2020 18:20:09 +0100 (CET) Received: from localhost (localhost [127.0.0.1]) by messagerie.si.c-s.fr (Postfix) with ESMTP id 32DD88B80C; Thu, 19 Nov 2020 18:20:09 +0100 (CET) X-Virus-Scanned: amavisd-new at c-s.fr Received: from messagerie.si.c-s.fr ([127.0.0.1]) by localhost (messagerie.si.c-s.fr [127.0.0.1]) (amavisd-new, port 10023) with ESMTP id 7odlXmS1EpR6; Thu, 19 Nov 2020 18:20:09 +0100 (CET) Received: from [192.168.4.90] (unknown [192.168.4.90]) by messagerie.si.c-s.fr (Postfix) with ESMTP id 906408B78A; Thu, 19 Nov 2020 18:20:02 +0100 (CET) Subject: Re: [PATCH v3 0/2] powerpc/ptrace: Hard wire PT_SOFTE value to 1 in gpr_get() too To: Oleg Nesterov , Benjamin Herrenschmidt , Madhavan Srinivasan , Michael Ellerman , Paul Mackerras Cc: Al Viro , "Aneesh Kumar K.V" , Christophe Leroy , Jan Kratochvil , Nicholas Piggin , linuxppc-dev@lists.ozlabs.org, linux-kernel@vger.kernel.org References: <20201119160154.GA5183@redhat.com> From: Christophe Leroy Message-ID: Date: Thu, 19 Nov 2020 18:19:55 +0100 User-Agent: Mozilla/5.0 (Windows NT 6.1; Win64; x64; rv:78.0) Gecko/20100101 Thunderbird/78.4.3 MIME-Version: 1.0 In-Reply-To: <20201119160154.GA5183@redhat.com> Content-Type: text/plain; charset=utf-8; format=flowed Content-Language: fr Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Le 19/11/2020 à 17:01, Oleg Nesterov a écrit : > Can we finally fix this problem? ;) > > My previous attempt was ignored, see That doesn't seems right. Michael made some suggestion it seems, can you respond to it ? > > https://lore.kernel.org/lkml/20190917121256.GA8659@redhat.com/ > > Now that gpr_get() was changed to use membuf API we can make a simpler fix. > > Sorry, uncompiled/untested, I don't have a ppc machine. I compiled with ppc64_defconfig, that seems ok. Still untested. Christophe > > Oleg. > > arch/powerpc/kernel/ptrace/ptrace-tm.c | 21 ++++++++++++--------- > arch/powerpc/kernel/ptrace/ptrace-view.c | 21 ++++++++++++--------- > include/linux/regset.h | 12 ++++++++++++ > 3 files changed, 36 insertions(+), 18 deletions(-) > 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=-10.3 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI,NICE_REPLY_A, SPF_HELO_NONE,SPF_PASS,USER_AGENT_SANE_1 autolearn=unavailable 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 C4F95C63697 for ; Thu, 19 Nov 2020 17:22:56 +0000 (UTC) Received: from lists.ozlabs.org (lists.ozlabs.org [203.11.71.2]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id E7CF824695 for ; Thu, 19 Nov 2020 17:22:55 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org E7CF824695 Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=csgroup.eu Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=linuxppc-dev-bounces+linuxppc-dev=archiver.kernel.org@lists.ozlabs.org Received: from bilbo.ozlabs.org (lists.ozlabs.org [IPv6:2401:3900:2:1::3]) by lists.ozlabs.org (Postfix) with ESMTP id 4CcRMd589SzDqWv for ; Fri, 20 Nov 2020 04:22:53 +1100 (AEDT) Authentication-Results: lists.ozlabs.org; spf=pass (sender SPF authorized) smtp.mailfrom=csgroup.eu (client-ip=93.17.236.30; helo=pegase1.c-s.fr; envelope-from=christophe.leroy@csgroup.eu; receiver=) Authentication-Results: lists.ozlabs.org; dmarc=none (p=none dis=none) header.from=csgroup.eu Received: from pegase1.c-s.fr (pegase1.c-s.fr [93.17.236.30]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by lists.ozlabs.org (Postfix) with ESMTPS id 4CcRJb3YCRzDqHZ for ; Fri, 20 Nov 2020 04:20:15 +1100 (AEDT) Received: from localhost (mailhub1-int [192.168.12.234]) by localhost (Postfix) with ESMTP id 4CcRJT281zzB09Zn; Thu, 19 Nov 2020 18:20:09 +0100 (CET) X-Virus-Scanned: Debian amavisd-new at c-s.fr Received: from pegase1.c-s.fr ([192.168.12.234]) by localhost (pegase1.c-s.fr [192.168.12.234]) (amavisd-new, port 10024) with ESMTP id GDt-2XrDYLSx; Thu, 19 Nov 2020 18:20:09 +0100 (CET) Received: from messagerie.si.c-s.fr (messagerie.si.c-s.fr [192.168.25.192]) by pegase1.c-s.fr (Postfix) with ESMTP id 4CcRJT1FSgzB09Zm; Thu, 19 Nov 2020 18:20:09 +0100 (CET) Received: from localhost (localhost [127.0.0.1]) by messagerie.si.c-s.fr (Postfix) with ESMTP id 32DD88B80C; Thu, 19 Nov 2020 18:20:09 +0100 (CET) X-Virus-Scanned: amavisd-new at c-s.fr Received: from messagerie.si.c-s.fr ([127.0.0.1]) by localhost (messagerie.si.c-s.fr [127.0.0.1]) (amavisd-new, port 10023) with ESMTP id 7odlXmS1EpR6; Thu, 19 Nov 2020 18:20:09 +0100 (CET) Received: from [192.168.4.90] (unknown [192.168.4.90]) by messagerie.si.c-s.fr (Postfix) with ESMTP id 906408B78A; Thu, 19 Nov 2020 18:20:02 +0100 (CET) Subject: Re: [PATCH v3 0/2] powerpc/ptrace: Hard wire PT_SOFTE value to 1 in gpr_get() too To: Oleg Nesterov , Benjamin Herrenschmidt , Madhavan Srinivasan , Michael Ellerman , Paul Mackerras References: <20201119160154.GA5183@redhat.com> From: Christophe Leroy Message-ID: Date: Thu, 19 Nov 2020 18:19:55 +0100 User-Agent: Mozilla/5.0 (Windows NT 6.1; Win64; x64; rv:78.0) Gecko/20100101 Thunderbird/78.4.3 MIME-Version: 1.0 In-Reply-To: <20201119160154.GA5183@redhat.com> Content-Type: text/plain; charset=utf-8; format=flowed Content-Language: fr Content-Transfer-Encoding: 8bit X-BeenThere: linuxppc-dev@lists.ozlabs.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Linux on PowerPC Developers Mail List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Christophe Leroy , "Aneesh Kumar K.V" , linux-kernel@vger.kernel.org, Nicholas Piggin , Jan Kratochvil , Al Viro , linuxppc-dev@lists.ozlabs.org Errors-To: linuxppc-dev-bounces+linuxppc-dev=archiver.kernel.org@lists.ozlabs.org Sender: "Linuxppc-dev" Le 19/11/2020 à 17:01, Oleg Nesterov a écrit : > Can we finally fix this problem? ;) > > My previous attempt was ignored, see That doesn't seems right. Michael made some suggestion it seems, can you respond to it ? > > https://lore.kernel.org/lkml/20190917121256.GA8659@redhat.com/ > > Now that gpr_get() was changed to use membuf API we can make a simpler fix. > > Sorry, uncompiled/untested, I don't have a ppc machine. I compiled with ppc64_defconfig, that seems ok. Still untested. Christophe > > Oleg. > > arch/powerpc/kernel/ptrace/ptrace-tm.c | 21 ++++++++++++--------- > arch/powerpc/kernel/ptrace/ptrace-view.c | 21 ++++++++++++--------- > include/linux/regset.h | 12 ++++++++++++ > 3 files changed, 36 insertions(+), 18 deletions(-) >