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 Received: from kanga.kvack.org (kanga.kvack.org [205.233.56.17]) by smtp.lore.kernel.org (Postfix) with ESMTP id 428D5C433EF for ; Fri, 3 Dec 2021 23:46:04 +0000 (UTC) Received: by kanga.kvack.org (Postfix) id A5EAD6B0073; Fri, 3 Dec 2021 18:45:53 -0500 (EST) Received: by kanga.kvack.org (Postfix, from userid 40) id 9E66C6B0074; Fri, 3 Dec 2021 18:45:53 -0500 (EST) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id 8877B6B0075; Fri, 3 Dec 2021 18:45:53 -0500 (EST) X-Delivered-To: linux-mm@kvack.org Received: from relay.hostedemail.com (relay036.a.hostedemail.com [64.99.140.36]) by kanga.kvack.org (Postfix) with ESMTP id 731776B0073 for ; Fri, 3 Dec 2021 18:45:53 -0500 (EST) Received: from smtpin01.hostedemail.com (a10.router.float.18 [10.200.18.1]) by unirelay02.hostedemail.com (Postfix) with ESMTP id 3686220519 for ; Fri, 3 Dec 2021 23:45:43 +0000 (UTC) X-FDA: 78878117766.01.2DB1226 Received: from mail-ot1-f42.google.com (mail-ot1-f42.google.com [209.85.210.42]) by imf09.hostedemail.com (Postfix) with ESMTP id E87AF3000109 for ; Fri, 3 Dec 2021 23:45:42 +0000 (UTC) Received: by mail-ot1-f42.google.com with SMTP id i5-20020a05683033e500b0057a369ac614so5385212otu.10 for ; Fri, 03 Dec 2021 15:45:42 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=20210112; h=mime-version:references:in-reply-to:from:date:message-id:subject:to :cc; bh=60reH7R0DIOnYiDzjJxXKxDAKSmQYMrrZWuqMItQwS0=; b=lwLR59toSKg0d3DkxASJYGkZ8L16glxKUaDTTvF+88eWEDzjr4kjtxvRl33PVBnKDD htg85jvk5miIto3O0oC10nexmnVRUMkm0LPTObzhAaHdC9pSe7CF2JCNF75x/WGIkOG3 PM1RuTN6Nhu5/g4qGlmgmqHRM2UZSR8UXi8+g/rcskGP7alvFuGEMFDeGahQ1pLEjsrX Z6EFmUfQjhtG/4rRPSVC1kWoUh+nSdz2aRIUoHXdKW8VYEFiDZIrfgmJAN7aC4i78hhh MVVhyQh/Hs2vmX+fTK9085aBpBW56vEUhxfheI0Ytpw8QrKAGkDBvIXT/x3LUmzXzWvU D5eA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=x-gm-message-state:mime-version:references:in-reply-to:from:date :message-id:subject:to:cc; bh=60reH7R0DIOnYiDzjJxXKxDAKSmQYMrrZWuqMItQwS0=; b=T0ScgILryskWT8opimKgG70C/43bva+jKZPhv9pYpHn10NKbCbOqQerg0oMMBI+LbT tH6HyTuow7EFpiJQedQIosRB5uFmPB1vhMrDiTNqTUlIYhP498zW05B2WFL/XGjuFwj1 3Jaegy5S295btyP0hHPMCCRu0fH80G2t4WDVJIX23BjG1RTN0BNMxxNPHHMUEMjNyKq1 7F2wCSI0pZosHFdVsWbfPwloNKafhkG2TGFpXPqPL0d8Ur9Da5usv0aeFZONrC1bz+Zp LUMNMeVIB2pQJ7Y0nc7QkVzmpShEfkQgnUyrk33PlAvlSlIlaonNbd6THLApZoUYZ7E+ SnDQ== X-Gm-Message-State: AOAM53097GKXGNDs4xYvZ9rG83/RL+0X/7YarHQ40CRzhzrWqEma6e0R tkhp9hmDgHCPgRa+giT2KyofBYe7Y0ORmYh6M21tdQ== X-Google-Smtp-Source: ABdhPJwprIsuAE81kQhNwY2u7JUyLZ0Gf1lKN54zx/jf0D8m6dhbAAqy4FkFq551WfGByrnkVKj8Umhm/PE2NQckFns= X-Received: by 2002:a9d:77d1:: with SMTP id w17mr18546120otl.329.1638575142007; Fri, 03 Dec 2021 15:45:42 -0800 (PST) MIME-Version: 1.0 References: <20211130114433.2580590-1-elver@google.com> <20211130114433.2580590-5-elver@google.com> <20211203165020.GR641268@paulmck-ThinkPad-P17-Gen-1> <20211203210856.GA712591@paulmck-ThinkPad-P17-Gen-1> <20211203234218.GA3308268@paulmck-ThinkPad-P17-Gen-1> In-Reply-To: <20211203234218.GA3308268@paulmck-ThinkPad-P17-Gen-1> From: Marco Elver Date: Sat, 4 Dec 2021 00:45:30 +0100 Message-ID: Subject: Re: [PATCH v3 04/25] kcsan: Add core support for a subset of weak memory modeling To: paulmck@kernel.org Cc: Alexander Potapenko , Boqun Feng , Borislav Petkov , Dmitry Vyukov , Ingo Molnar , Mark Rutland , Peter Zijlstra , Thomas Gleixner , Waiman Long , Will Deacon , kasan-dev@googlegroups.com, linux-arch@vger.kernel.org, linux-doc@vger.kernel.org, linux-kbuild@vger.kernel.org, linux-kernel@vger.kernel.org, linux-mm@kvack.org, llvm@lists.linux.dev, x86@kernel.org Content-Type: text/plain; charset="UTF-8" X-Stat-Signature: 9b9mggf97rxzdkpf7mf9eftpdgk35zcz Authentication-Results: imf09.hostedemail.com; dkim=pass header.d=google.com header.s=20210112 header.b=lwLR59to; spf=pass (imf09.hostedemail.com: domain of elver@google.com designates 209.85.210.42 as permitted sender) smtp.mailfrom=elver@google.com; dmarc=pass (policy=reject) header.from=google.com X-Rspamd-Server: rspam05 X-Rspamd-Queue-Id: E87AF3000109 X-HE-Tag: 1638575142-486355 X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: On Sat, 4 Dec 2021 at 00:42, Paul E. McKenney wrote: [...] > And to further extend this bug report, the following patch suppresses > the error. > > Thanx, Paul > > ------------------------------------------------------------------------ > > commit d157b802f05bd12cf40bef7a73ca6914b85c865e > Author: Paul E. McKenney > Date: Fri Dec 3 15:35:29 2021 -0800 > > kcsan: selftest: Move test spinlock to static global Indeed, that will fix the selftest. The kcsan_test has the same problem (+1 extra problem). We raced sending the fix. :-) I hope this patch works for you: https://lkml.kernel.org/r/20211203233817.2815340-1-elver@google.com Thanks, -- Marco