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 A1E52C33CB3 for ; Tue, 28 Jan 2020 12:30:17 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 79E6824688 for ; Tue, 28 Jan 2020 12:30:17 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=lca.pw header.i=@lca.pw header.b="Rbz1P8X1" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726114AbgA1MaQ (ORCPT ); Tue, 28 Jan 2020 07:30:16 -0500 Received: from mail-qk1-f194.google.com ([209.85.222.194]:45642 "EHLO mail-qk1-f194.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726034AbgA1MaQ (ORCPT ); Tue, 28 Jan 2020 07:30:16 -0500 Received: by mail-qk1-f194.google.com with SMTP id x1so13068634qkl.12 for ; Tue, 28 Jan 2020 04:30:15 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=lca.pw; s=google; h=content-transfer-encoding:from:mime-version:date:subject:message-id :cc:to; bh=8GwDVchQDE0RRDd6Z1x4gzFv6pXtLF378PeW6dBbf+w=; b=Rbz1P8X1bfckF8p5+fQPfltDNpYpc5sp5fHqq9u1T5/uhK6rRW78SfwJEw2v28znfV wPfmUeOnrz7CBbeIgQixtLq2TPQmdgtO1vVi6z9urV65HN1x4ZK0nWUORD8codoMVkS8 rPApC12IYdkgP3grHEjFihd/Jh4OgeLy2QqFihiQOoNERJPGlH4ggjAY8evnQXoqrTaN KqoP6/pkU7BjH0xE18gbhqENWpt3g5gz/4WQxHhB9FaTgVokGRGk0m2PJgFNbLse/V1Q DUm5C86KbFXNmme7COzfebOm4aubFGvujqheNY2AxjxXyz7y4nv8h1Ou8ChS1lBEdbUk SJNQ== 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:date :subject:message-id:cc:to; bh=8GwDVchQDE0RRDd6Z1x4gzFv6pXtLF378PeW6dBbf+w=; b=Hwb8HSjAMhK+ZdZn8FzSL400dvAIUmwCqXU2Xoy8Cbrnw+T/dBXmQTnagBEJcoeT81 us9ETCxWX89Ubt5dd8D4hmYbkPIapJZFEozD7gcRYNbJKM0N2O2vGUCDvDD2ruGQmlVj i2edqvmZCOEjjhDIaDS5aARapPuVwQW8MRpXiZ3x2Bh2BPz5DbtI/ZLUlefj+fjat2NL uTracoEvCwjfYEXTZMDe7twdG6gmlFn4Yu8xrXy69TBrx8blXal56MAJ6zJ10r7m3BqU VbzKlQlN2w4JGvGaSiEfAX2ed2M5q+ZLeKciAHxenTdc+8mYSdTYKWBHCkC2k7ITPIhq vtCA== X-Gm-Message-State: APjAAAWKHMkwHdj8RChpJEB131t0syisUHbuFu0ygIKoHopA0F/rpIAB XAMMB3hvu4iryf4MyF3NGc/jqQ== X-Google-Smtp-Source: APXvYqw4NHHH616JlS/IrWEyv4wSaDB7EoG4ap5GXk6Z++ZZIlsdVUcHztpJPWJHmyylARL29R+hpQ== X-Received: by 2002:a37:9ce:: with SMTP id 197mr22314564qkj.194.1580214614838; Tue, 28 Jan 2020 04:30:14 -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 69sm11862264qkk.106.2020.01.28.04.30.13 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Tue, 28 Jan 2020 04:30:14 -0800 (PST) Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: quoted-printable From: Qian Cai Mime-Version: 1.0 (1.0) Date: Tue, 28 Jan 2020 07:30:13 -0500 Subject: Re: [PATCH V12] mm/debug: Add tests validating architecture page table helpers Message-Id: <0C97A195-CBF2-43EF-88A0-7683BB9EF892@lca.pw> 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 , Christophe Leroy , 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 To: Mike Rapoport 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 7:10 AM, Mike Rapoport wrote: >=20 > Aren't x86 and arm64 not decent enough? > Even if this test could be used to detect regressions only on these two > platforms, the test is valuable. The question is does it detect regressions good enough? Where is the list of= past bugs that it had found? It is an usual deal for unproven debugging features remain out of tree first= and keep gathering unique bugs it found and then justify for a mainline inc= lusion with enough data.=