From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id DC0E81487F6; Tue, 21 Jan 2025 14:00:23 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1737468024; cv=none; b=TmatCLmkgW3c57hVsNuVDHqoq9xoWSLWEIHqJ3YuHbh6VYoU+EofUxfqfQC6E9M119d6+guZiAoI6nZNJbyc21dzL67IBvT0U3SEo0bNEMHProXxg2hODKrrmB7dbXbkn8gh86xtx1NCrOBYXeY2cVKv4ird+lgWcizG8ieFti4= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1737468024; c=relaxed/simple; bh=Q5S9rJetTl9cgCroBUGkg7SOjKEl71T4cDyTy00Ssfo=; h=Date:From:To:Cc:Subject:Message-ID:References:MIME-Version: Content-Type:Content-Disposition:In-Reply-To; b=YCwJCtObWkcQLZU+pjgmoJ/stcoua9YmzpiugY0auhm/IBV7rl4f/FmvwcQAhLky8cu4AeopsQBM0bqz4gil9F2yS+3YLM+V24/uIb7dNzHXEyDn4mTgZqmo1DK4A8HjRKMv0PcGduJOESZfQB3rIshdR+VZB8js3IrIa//O60o= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=FXH6cakO; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="FXH6cakO" 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> Precedence: bulk X-Mailing-List: virtualization@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: 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> 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 > >