From mboxrd@z Thu Jan 1 00:00:00 1970 From: Qian Cai Date: Tue, 28 Jan 2020 06:36:56 +0000 Subject: Re: [PATCH V12] mm/debug: Add tests validating architecture page table helpers Message-Id: List-Id: References: <115c187b-73ce-30b2-0694-999db1f2183b@c-s.fr> In-Reply-To: <115c187b-73ce-30b2-0694-999db1f2183b@c-s.fr> MIME-Version: 1.0 Content-Type: text/plain; charset="windows-1252" Content-Transfer-Encoding: quoted-printable To: Christophe Leroy Cc: Mark Rutland , linux-ia64@vger.kernel.org, linux-sh@vger.kernel.org, Peter Zijlstra , James Hogan , Tetsuo Handa , Heiko Carstens , Michal Hocko , Linux-MM , Paul Mackerras , sparclinux@vger.kernel.org, Thomas Gleixner , linux-s390@vger.kernel.org, Michael Ellerman , x86@kernel.org, Russell King - ARM Linux , Matthew Wilcox , Steven Price , Jason Gunthorpe , Gerald Schaefer , linux-snps-arc@lists.infradead.org, Ingo Molnar , Kees Cook , Anshuman Khandual , Masahiro Yamada , Mark Brown , "Kirill A . Shutemov" , Dan Williams , Vlastimil Babka , linux-arm-kernel@lists.infradead.org, Sri Krishna chowdary , Ard Biesheuvel , Greg Kroah-Hartman , Dave Hansen , linux-mips@vger.kernel.org, Ralf Baechle , linux-kernel@vger.kernel.org, Paul Burton , Mike Rapoport , Vineet Gupta , Martin Schwidefsky , Andrew Morton , linuxppc-dev@lists.ozlabs.org, "David S. Miller" > On Jan 28, 2020, at 1:17 AM, Christophe Leroy w= rote: >=20 > It is 'default y' so there is no much risk that it is forgotten, at least= all test suites run with 'allyes_defconfig' will trigger the test, so I th= ink it is really a good feature. This thing depends on DEBUG_VM which I don=E2=80=99t see it is selected by = any defconfig. Am I missing anything? 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=DKIM_SIGNED,DKIM_VALID, DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_HELO_NONE, SPF_PASS 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 0881EC35240 for ; Tue, 28 Jan 2020 06:37:01 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id CE79824681 for ; Tue, 28 Jan 2020 06:37:00 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=lca.pw header.i=@lca.pw header.b="dX5ri6JW" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1725901AbgA1GhA (ORCPT ); Tue, 28 Jan 2020 01:37:00 -0500 Received: from mail-qv1-f66.google.com ([209.85.219.66]:40183 "EHLO mail-qv1-f66.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1725844AbgA1Gg7 (ORCPT ); Tue, 28 Jan 2020 01:36:59 -0500 Received: by mail-qv1-f66.google.com with SMTP id dp13so5752623qvb.7 for ; Mon, 27 Jan 2020 22:36:58 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=lca.pw; s=google; h=content-transfer-encoding:from:mime-version:subject:date:message-id :references:cc:in-reply-to:to; bh=0abVuQRiEoEWLaCFKSSRqYpNWOPktE+d1wvOzU3Y5QQ=; b=dX5ri6JWeqf2OD9HUY9VaB/KwNs/qrzPVG/Mkk6o9PIOqw2H/gbYXWgmg5n/T9sQZi Iu9x9L3POLnl1YchVinwocuu9ounpYF8/kx5Kl6xkZvkINd+J3VgmAAsMM4XdNmOQpGF n/A6miYs2pl1z68bmOVHF16tPK0qb+EWBTpkY/wDARN4JMfLDfXWnSNw6qljowznZeLw nC2mDCu/xZdzLMzffrfLowRJu9L4pvo4bnAdA6EAug7bCreb8yqSCB9NBnvi8MDOIkJC NhZM5PfIKH0yrTiGcHzwETXhAcZRM4FxAKgtCYb9TW9qoZDA0+sfnlblbnN56jONvpa4 1ytQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:content-transfer-encoding:from:mime-version :subject:date:message-id:references:cc:in-reply-to:to; bh=0abVuQRiEoEWLaCFKSSRqYpNWOPktE+d1wvOzU3Y5QQ=; b=fg1SG2PS7lIzKMBh4DaC6b2ZwegZp3ta+bJnBhH4a7nxeyHvPrH7CEyMdBKafQyS6Q ssPAB4kRrAJI8m+xFAtqJAMsr8whN8OYnVJWgdLdYp1Sq35sn9c4rGI0iJnc47egy5iN 8N0ZjsEbU12vmH8Cig4WdPDh+Vbub7Um0lk+2PT/p2exkSIcHzXXmU347JsK6Qrzqvsz pkFup2/pWi+KY+Kgfe+7XIxlUVe0PiNVrlpiBtrZtqLHmd0u+xzojwVF4uoTHnRC2sop 0KH06yidSiegTKvS+Z7bMrdbD//CJtu0qB6AO8LKl3PLpd7NVZDvbnwIQc17z904/TXG RKBA== X-Gm-Message-State: APjAAAVpZPLFdi3w1EeHTweOTVxZOPoP/ySMhaw2Yb4FL4oSAUZq4npT YbH2FoGjLTNWAeEC7jzaGZUtkA== X-Google-Smtp-Source: APXvYqyOYFD97tfKGnmPwPmfp2w3pbVQzr1Mc0RjmsOaGaxOYR1oH4beASJJ2LsvEzXBpFE4wXV4hg== X-Received: by 2002:a05:6214:1189:: with SMTP id t9mr20389607qvv.153.1580193418367; Mon, 27 Jan 2020 22:36:58 -0800 (PST) Received: from [192.168.1.183] (pool-71-184-117-43.bstnma.fios.verizon.net. [71.184.117.43]) by smtp.gmail.com with ESMTPSA id z126sm11703882qka.34.2020.01.27.22.36.57 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Mon, 27 Jan 2020 22:36:57 -0800 (PST) Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: quoted-printable From: Qian Cai Mime-Version: 1.0 (1.0) Subject: Re: [PATCH V12] mm/debug: Add tests validating architecture page table helpers Date: Tue, 28 Jan 2020 01:36:56 -0500 Message-Id: References: <115c187b-73ce-30b2-0694-999db1f2183b@c-s.fr> Cc: Anshuman Khandual , Linux-MM , Andrew Morton , Vlastimil Babka , Greg Kroah-Hartman , Thomas Gleixner , Mike Rapoport , Jason Gunthorpe , Dan Williams , Peter Zijlstra , Michal Hocko , Mark Rutland , Mark Brown , Steven Price , Ard Biesheuvel , Masahiro Yamada , Kees Cook , Tetsuo Handa , Matthew Wilcox , Sri Krishna chowdary , Dave Hansen , Russell King - ARM Linux , Michael Ellerman , Paul Mackerras , Martin Schwidefsky , Heiko Carstens , "David S. Miller" , Vineet Gupta , James Hogan , Paul Burton , Ralf Baechle , "Kirill A . Shutemov" , Gerald Schaefer , Ingo Molnar , linux-snps-arc@lists.infradead.org, linux-mips@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-ia64@vger.kernel.org, linuxppc-dev@lists.ozlabs.org, linux-s390@vger.kernel.org, linux-sh@vger.kernel.org, sparclinux@vger.kernel.org, x86@kernel.org, linux-kernel@vger.kernel.org In-Reply-To: <115c187b-73ce-30b2-0694-999db1f2183b@c-s.fr> To: Christophe Leroy X-Mailer: iPhone Mail (17C54) Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org > On Jan 28, 2020, at 1:17 AM, Christophe Leroy wr= ote: >=20 > It is 'default y' so there is no much risk that it is forgotten, at least a= ll test suites run with 'allyes_defconfig' will trigger the test, so I think= it is really a good feature. This thing depends on DEBUG_VM which I don=E2=80=99t see it is selected by a= ny defconfig. Am I missing anything?= 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=-0.6 required=3.0 tests=DKIM_INVALID,DKIM_SIGNED, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS 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 20FC9C33CB3 for ; Tue, 28 Jan 2020 06:39:00 +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 C507A22522 for ; Tue, 28 Jan 2020 06:38:59 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=fail reason="signature verification failed" (2048-bit key) header.d=lca.pw header.i=@lca.pw header.b="dX5ri6JW" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org C507A22522 Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=lca.pw Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=linuxppc-dev-bounces+linuxppc-dev=archiver.kernel.org@lists.ozlabs.org Received: from lists.ozlabs.org (lists.ozlabs.org [IPv6:2401:3900:2:1::3]) by lists.ozlabs.org (Postfix) with ESMTP id 486H5D5TvPzDqDD for ; Tue, 28 Jan 2020 17:38:56 +1100 (AEDT) Authentication-Results: lists.ozlabs.org; spf=pass (sender SPF authorized) smtp.mailfrom=lca.pw (client-ip=2607:f8b0:4864:20::f42; helo=mail-qv1-xf42.google.com; envelope-from=cai@lca.pw; receiver=) Authentication-Results: lists.ozlabs.org; dmarc=none (p=none dis=none) header.from=lca.pw Authentication-Results: lists.ozlabs.org; dkim=pass (2048-bit key; unprotected) header.d=lca.pw header.i=@lca.pw header.a=rsa-sha256 header.s=google header.b=dX5ri6JW; dkim-atps=neutral Received: from mail-qv1-xf42.google.com (mail-qv1-xf42.google.com [IPv6:2607:f8b0:4864:20::f42]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (2048 bits) server-digest SHA256) (No client certificate requested) by lists.ozlabs.org (Postfix) with ESMTPS id 486H316MJVzDq9B for ; Tue, 28 Jan 2020 17:37:01 +1100 (AEDT) Received: by mail-qv1-xf42.google.com with SMTP id p2so5746221qvo.10 for ; Mon, 27 Jan 2020 22:37:01 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=lca.pw; s=google; h=content-transfer-encoding:from:mime-version:subject:date:message-id :references:cc:in-reply-to:to; bh=0abVuQRiEoEWLaCFKSSRqYpNWOPktE+d1wvOzU3Y5QQ=; b=dX5ri6JWeqf2OD9HUY9VaB/KwNs/qrzPVG/Mkk6o9PIOqw2H/gbYXWgmg5n/T9sQZi Iu9x9L3POLnl1YchVinwocuu9ounpYF8/kx5Kl6xkZvkINd+J3VgmAAsMM4XdNmOQpGF n/A6miYs2pl1z68bmOVHF16tPK0qb+EWBTpkY/wDARN4JMfLDfXWnSNw6qljowznZeLw nC2mDCu/xZdzLMzffrfLowRJu9L4pvo4bnAdA6EAug7bCreb8yqSCB9NBnvi8MDOIkJC NhZM5PfIKH0yrTiGcHzwETXhAcZRM4FxAKgtCYb9TW9qoZDA0+sfnlblbnN56jONvpa4 1ytQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:content-transfer-encoding:from:mime-version :subject:date:message-id:references:cc:in-reply-to:to; bh=0abVuQRiEoEWLaCFKSSRqYpNWOPktE+d1wvOzU3Y5QQ=; b=R/1QkDwftizkF6Ctc5Dqrwc23PBxx2RAUjNSeqvSyuAfav9NBGtao+RJDxS8drISU8 PsRiw8fSkgBXdN5wpfnmWipT71LXUJ4rHlSozeIitKF6+9/37F5Mn06u86tevS45PbvG rZhAZjXoZ2j/2HxWuoDVmPmbr1wVLZyIqqWAnu+O7M1Rh2So+EY52O77jBWljt1eRN7f dLqyXmFn/gcqvcX7xbqiOOxouOhBUUtz3UHc2OhgUeCXP69PmkXsRrDWwiA7gIAmfuOb E3oJdRUVCaCzzBZe9HyPty1xGj15L0e+5nQR/Xp/HohNI4tkK/8lI5ukdxPTpOLEEFwV VSjA== X-Gm-Message-State: APjAAAXbPV8j+Y2jKihH1RCn3HyX6cdflM0dEvoAM3jNe0MykcjKdfSV tCwY8u6jI04RvDTvVT7aeBEm7Q== X-Google-Smtp-Source: APXvYqyOYFD97tfKGnmPwPmfp2w3pbVQzr1Mc0RjmsOaGaxOYR1oH4beASJJ2LsvEzXBpFE4wXV4hg== X-Received: by 2002:a05:6214:1189:: with SMTP id t9mr20389607qvv.153.1580193418367; Mon, 27 Jan 2020 22:36:58 -0800 (PST) Received: from [192.168.1.183] (pool-71-184-117-43.bstnma.fios.verizon.net. [71.184.117.43]) by smtp.gmail.com with ESMTPSA id z126sm11703882qka.34.2020.01.27.22.36.57 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Mon, 27 Jan 2020 22:36:57 -0800 (PST) Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: quoted-printable From: Qian Cai Mime-Version: 1.0 (1.0) Subject: Re: [PATCH V12] mm/debug: Add tests validating architecture page table helpers Date: Tue, 28 Jan 2020 01:36:56 -0500 Message-Id: References: <115c187b-73ce-30b2-0694-999db1f2183b@c-s.fr> In-Reply-To: <115c187b-73ce-30b2-0694-999db1f2183b@c-s.fr> To: Christophe Leroy X-Mailer: iPhone Mail (17C54) 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: Mark Rutland , linux-ia64@vger.kernel.org, linux-sh@vger.kernel.org, Peter Zijlstra , James Hogan , Tetsuo Handa , Heiko Carstens , Michal Hocko , Linux-MM , Paul Mackerras , sparclinux@vger.kernel.org, Thomas Gleixner , linux-s390@vger.kernel.org, x86@kernel.org, Russell King - ARM Linux , Matthew Wilcox , Steven Price , Jason Gunthorpe , Gerald Schaefer , linux-snps-arc@lists.infradead.org, Ingo Molnar , Kees Cook , Anshuman Khandual , Masahiro Yamada , Mark Brown , "Kirill A . Shutemov" , Dan Williams , Vlastimil Babka , linux-arm-kernel@lists.infradead.org, Sri Krishna chowdary , Ard Biesheuvel , Greg Kroah-Hartman , Dave Hansen , linux-mips@vger.kernel.org, Ralf Baechle , linux-kernel@vger.kernel.org, Paul Burton , Mike Rapoport , Vineet Gupta , Martin Schwidefsky , Andrew Morton , linuxppc-dev@lists.ozlabs.org, "David S. Miller" Errors-To: linuxppc-dev-bounces+linuxppc-dev=archiver.kernel.org@lists.ozlabs.org Sender: "Linuxppc-dev" > On Jan 28, 2020, at 1:17 AM, Christophe Leroy wr= ote: >=20 > It is 'default y' so there is no much risk that it is forgotten, at least a= ll test suites run with 'allyes_defconfig' will trigger the test, so I think= it is really a good feature. This thing depends on DEBUG_VM which I don=E2=80=99t see it is selected by a= ny defconfig. 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[71.184.117.43]) by smtp.gmail.com with ESMTPSA id z126sm11703882qka.34.2020.01.27.22.36.57 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Mon, 27 Jan 2020 22:36:57 -0800 (PST) From: Qian Cai Mime-Version: 1.0 (1.0) Subject: Re: [PATCH V12] mm/debug: Add tests validating architecture page table helpers Date: Tue, 28 Jan 2020 01:36:56 -0500 Message-Id: References: <115c187b-73ce-30b2-0694-999db1f2183b@c-s.fr> In-Reply-To: <115c187b-73ce-30b2-0694-999db1f2183b@c-s.fr> To: Christophe Leroy X-Mailer: iPhone Mail (17C54) X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20200127_223659_798620_E96B9517 X-CRM114-Status: UNSURE ( 9.06 ) X-CRM114-Notice: Please train this message. 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