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 CDD86C02182 for ; Tue, 21 Jan 2025 14:00:27 +0000 (UTC) Received: by kanga.kvack.org (Postfix) id 5E4AE6B0083; Tue, 21 Jan 2025 09:00:27 -0500 (EST) Received: by kanga.kvack.org (Postfix, from userid 40) id 56E4B6B0085; Tue, 21 Jan 2025 09:00:27 -0500 (EST) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id 3C14F6B0088; Tue, 21 Jan 2025 09:00:27 -0500 (EST) X-Delivered-To: linux-mm@kvack.org Received: from relay.hostedemail.com (smtprelay0015.hostedemail.com [216.40.44.15]) by kanga.kvack.org (Postfix) with ESMTP id 20EF76B0083 for ; Tue, 21 Jan 2025 09:00:27 -0500 (EST) Received: from smtpin05.hostedemail.com (a10.router.float.18 [10.200.18.1]) by unirelay06.hostedemail.com (Postfix) with ESMTP id C3DC3AEAF3 for ; Tue, 21 Jan 2025 14:00:26 +0000 (UTC) X-FDA: 83031618852.05.44AE915 Received: from dfw.source.kernel.org (dfw.source.kernel.org [139.178.84.217]) by imf29.hostedemail.com (Postfix) with ESMTP id 05A4F12000D for ; Tue, 21 Jan 2025 14:00:24 +0000 (UTC) Authentication-Results: imf29.hostedemail.com; dkim=pass header.d=kernel.org header.s=k20201202 header.b=FXH6cakO; spf=pass (imf29.hostedemail.com: domain of frederic@kernel.org designates 139.178.84.217 as permitted sender) smtp.mailfrom=frederic@kernel.org; dmarc=pass (policy=quarantine) header.from=kernel.org ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=hostedemail.com; s=arc-20220608; t=1737468025; h=from:from:sender:reply-to:subject:subject:date:date: message-id:message-id:to:to:cc:cc:mime-version:mime-version: content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references:dkim-signature; bh=nwtLwswhQ6EApXswIkhWaCgCuFzcw3DILER9/bYP7io=; b=xw27PJ341PiTA3Pqi1fbu0i6AGKpPYn6vLC30zQJuHPREdekwTpLrPOfA4NCTtLJk6N6uy SBDF9N47LDaoNS5X2E23OrtQD0ufJC4kiAbTizp4iFV+vyIUguUukMg+prkL8GMqh38Z/6 qAOufMd8Ud86I3KLX1omGdIUDdkNL+4= ARC-Seal: i=1; s=arc-20220608; d=hostedemail.com; t=1737468025; a=rsa-sha256; cv=none; b=CI3pqBWDZuOmU/bQsIYA2UNUXKbieX4FWUxQLbXfAejHyQpwBgLmoESdyd8weyQN7B7swm 7zBExAIH0s9RD7j+nXvesLcT9E6rAiJIs8bqs9IgEjNbNj3uryiOE1/TD8dO4I13F48QQq NAeuMu69qxA3PrCHl9/+b44PT3KcBlU= ARC-Authentication-Results: i=1; imf29.hostedemail.com; dkim=pass header.d=kernel.org header.s=k20201202 header.b=FXH6cakO; spf=pass (imf29.hostedemail.com: domain of frederic@kernel.org designates 139.178.84.217 as permitted sender) smtp.mailfrom=frederic@kernel.org; dmarc=pass (policy=quarantine) header.from=kernel.org Received: from smtp.kernel.org (transwarp.subspace.kernel.org [100.75.92.58]) by dfw.source.kernel.org (Postfix) with ESMTP id 23A275C58A7; Tue, 21 Jan 2025 13:59:43 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id C5C8CC4CEE0; Tue, 21 Jan 2025 14:00:22 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1737468023; bh=Q5S9rJetTl9cgCroBUGkg7SOjKEl71T4cDyTy00Ssfo=; h=Date:From:To:Cc:Subject:References:In-Reply-To:From; b=FXH6cakOFkqIb5zaMucRt18L87yvpwVZGaJxUhREOt4P68rgom62uMZqy68vIiJxY vC1cXMrRMcOwMAfmuxLEZ5bndo3NE4WwazkktDRZnaa3oxsql1H5GUr7t+fwMIx0bz XkAJkUT9nkasLdUoZuBKZrBbotzPsLrjgcHMO3sqMz38POYs+eMlsXPGM73jQ0n8iK MmzoQzjKnN6ACmqf4QPGnpglxf6uAX3/BRM7U3tqtHBoHNE7h6KqKMl22hpV4arvIi 4EBHxuw1qzMJUStZM7S/rcVySHrJR+84rbhK+Ss3scFXmd7IzHbUAqqT0NZChxotoD A/lQ8LRjiOvEw== Date: Tue, 21 Jan 2025 15:00:20 +0100 From: Frederic Weisbecker To: Valentin Schneider Cc: linux-kernel@vger.kernel.org, x86@kernel.org, virtualization@lists.linux.dev, linux-arm-kernel@lists.infradead.org, loongarch@lists.linux.dev, linux-riscv@lists.infradead.org, linux-perf-users@vger.kernel.org, xen-devel@lists.xenproject.org, kvm@vger.kernel.org, linux-arch@vger.kernel.org, rcu@vger.kernel.org, linux-hardening@vger.kernel.org, linux-mm@kvack.org, linux-kselftest@vger.kernel.org, bpf@vger.kernel.org, bcm-kernel-feedback-list@broadcom.com, "Paul E . McKenney" , Juergen Gross , Ajay Kaher , Alexey Makhalov , Russell King , Catalin Marinas , Will Deacon , Huacai Chen , WANG Xuerui , Paul Walmsley , Palmer Dabbelt , Albert Ou , Thomas Gleixner , Ingo Molnar , Borislav Petkov , Dave Hansen , "H. Peter Anvin" , Peter Zijlstra , Arnaldo Carvalho de Melo , Namhyung Kim , Mark Rutland , Alexander Shishkin , Jiri Olsa , Ian Rogers , Adrian Hunter , "Liang, Kan" , Boris Ostrovsky , Josh Poimboeuf , Pawan Gupta , Sean Christopherson , Paolo Bonzini , Andy Lutomirski , Arnd Bergmann , Jason Baron , Steven Rostedt , Ard Biesheuvel , Neeraj Upadhyay , Joel Fernandes , Josh Triplett , Boqun Feng , Uladzislau Rezki , Mathieu Desnoyers , Lai Jiangshan , Zqiang , Juri Lelli , Clark Williams , Yair Podemsky , Tomas Glozar , Vincent Guittot , Dietmar Eggemann , Ben Segall , Mel Gorman , Kees Cook , Andrew Morton , Christoph Hellwig , Shuah Khan , Sami Tolvanen , Miguel Ojeda , Alice Ryhl , "Mike Rapoport (Microsoft)" , Samuel Holland , Rong Xu , Nicolas Saenz Julienne , Geert Uytterhoeven , Yosry Ahmed , "Kirill A. Shutemov" , "Masami Hiramatsu (Google)" , Jinghao Jia , Luis Chamberlain , Randy Dunlap , Tiezhu Yang Subject: Re: [PATCH v4 04/30] rcutorture: Make TREE04 use CONFIG_RCU_DYNTICKS_TORTURE Message-ID: References: <20250114175143.81438-1-vschneid@redhat.com> <20250114175143.81438-5-vschneid@redhat.com> MIME-Version: 1.0 Content-Type: text/plain; charset=iso-8859-1 Content-Disposition: inline Content-Transfer-Encoding: 8bit In-Reply-To: <20250114175143.81438-5-vschneid@redhat.com> X-Stat-Signature: oi89n7iqjhbwfh54msp7u1wyd7xteek3 X-Rspam-User: X-Rspamd-Queue-Id: 05A4F12000D X-Rspamd-Server: rspam03 X-HE-Tag: 1737468024-13912 X-HE-Meta: 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 DNUwC+1q 52DnsB4hpWmnYqooKo3b81IR/AzEMyGta4CcsYZA+LF/FK+1tAbWNNowJ7CBj65riYDb8JefnpDGNQCkdXFij1XzOTx5mbYtr2XyS8TX10+M+TwxVhTIClOSJ83aSETeoxBnW+FXQ4L8oX+pXlwx9UoV9KdSmF1Bayqk0/Juufcul+FbRgUWMtzdQsOShU9S0DJfThBgO7+CrfqbXy2tPm4OThhfhsQkjm9yeVkQj+Mwrhob5KAugvVKE/EmLfbOUGstgd4DBNGHf0Nx9VGAfWxOIc1/i/AcQgP/UU9eg8vRG1DANPNPiKVIdlL8uf3PVOSaXHy7NbN8WbkHqGjl913IGhjKgvi1Pi+BIfgz6OGTho0BPtpm6X0WxS4DU75aD0YWPp8bE56sJP69GcnbGfNLmwA== 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: List-Subscribe: List-Unsubscribe: Le Tue, Jan 14, 2025 at 06:51:17PM +0100, Valentin Schneider a écrit : > We now have an RCU_EXPERT config for testing small-sized RCU dynticks > counter: CONFIG_RCU_DYNTICKS_TORTURE. > > Modify scenario TREE04 to exercise to use this config in order to test a > ridiculously small counter (2 bits). > > Link: http://lore.kernel.org/r/4c2cb573-168f-4806-b1d9-164e8276e66a@paulmck-laptop > Suggested-by: Paul E. McKenney > Signed-off-by: Valentin Schneider > Reviewed-by: Paul E. McKenney > --- > tools/testing/selftests/rcutorture/configs/rcu/TREE04 | 1 + > 1 file changed, 1 insertion(+) > > diff --git a/tools/testing/selftests/rcutorture/configs/rcu/TREE04 b/tools/testing/selftests/rcutorture/configs/rcu/TREE04 > index dc4985064b3ad..67caf4276bb01 100644 > --- a/tools/testing/selftests/rcutorture/configs/rcu/TREE04 > +++ b/tools/testing/selftests/rcutorture/configs/rcu/TREE04 > @@ -16,3 +16,4 @@ CONFIG_DEBUG_OBJECTS_RCU_HEAD=n > CONFIG_RCU_EXPERT=y > CONFIG_RCU_EQS_DEBUG=y > CONFIG_RCU_LAZY=y > +CONFIG_RCU_DYNTICKS_TORTURE=y Reviewed-by: Frederic Weisbecker > -- > 2.43.0 > >