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 vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id CCAC2EB64DC for ; Fri, 21 Jul 2023 07:59:48 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S230451AbjGUH7q (ORCPT ); Fri, 21 Jul 2023 03:59:46 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:47610 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229518AbjGUH7o (ORCPT ); Fri, 21 Jul 2023 03:59:44 -0400 Received: from us-smtp-delivery-124.mimecast.com (us-smtp-delivery-124.mimecast.com [170.10.133.124]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id AC8062701 for ; Fri, 21 Jul 2023 00:58:59 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1689926338; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: in-reply-to:in-reply-to:references:references; bh=OMiNfezuDp8QZVlAhLlbiIMuGymmCNYB2I4q0EEFUSk=; b=es9VMHsiDg2kuJVCMyTCvHzFaAuKoWL4QN9LjBQxFyxYc2fjsb2ogQ78VCKuGxIJAwnq9u u3eXDF1fgpsBDz13/yue0Z+cwF00LhcZnXJYCXZZky1FsICn2cuMzs7vHFE+EhMfimzW4p xEMc+hIL3o4dp33wXsBxVpL70l3Saic= Received: from mail-wr1-f70.google.com (mail-wr1-f70.google.com [209.85.221.70]) by relay.mimecast.com with ESMTP with STARTTLS (version=TLSv1.3, cipher=TLS_AES_256_GCM_SHA384) id us-mta-626-8uZ1BF8kMOqqwTn7Zx_SlQ-1; Fri, 21 Jul 2023 03:58:57 -0400 X-MC-Unique: 8uZ1BF8kMOqqwTn7Zx_SlQ-1 Received: by mail-wr1-f70.google.com with SMTP id ffacd0b85a97d-31400956ce8so873205f8f.3 for ; Fri, 21 Jul 2023 00:58:57 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20221208; t=1689926336; x=1690531136; h=mime-version:message-id:date:references:in-reply-to:subject:cc:to :from:x-gm-message-state:from:to:cc:subject:date:message-id:reply-to; bh=OMiNfezuDp8QZVlAhLlbiIMuGymmCNYB2I4q0EEFUSk=; b=LBfOHxlqKAAuHI0oNI+MF6/3DuxkjZPInap0gsFyYNwx9I0tPCTo8dYI6AxnWWIBVe Vw/GyJtq24Ea0HmnIBuD8buVwXMu04j78N0Z8gR4ycQaQ5w2g65VAtbM7bJAC5cjUqXp c1kVG6UiQNkatv7nlRUxM4XTliR/8r6w8F4OEvHMo9+McZaiFdSobb0xRQ/zYTzEYW20 hXdet7mpKe1u5Dn2y0kHApS0/t4YfjNsE9gOLs+4O+cIRN92lssx7/Kd95J+mC+1vFAv H5egKp1e2Jy6N7pVn5oefZiioFZyLiZVru0jWuEXs7RkmTCqBleARGrE/IIV2SVOCJNi HoLw== X-Gm-Message-State: ABy/qLZK7ZW790ZW5tmzuLKRvIwA/ewjuieIVl2FCM+9Vkc0y64GjYu6 Zy7UEvkYKrVgDHmFXISNF1LKfy4YYoCJFfGVTkp5sYLaJFshbP19eK/6JSjn2uNW4mmg7V0HFUh QVFvYdvyxBjswNeQNhUEJzH+qTR3POLt3 X-Received: by 2002:a5d:6103:0:b0:313:e559:2d4c with SMTP id v3-20020a5d6103000000b00313e5592d4cmr798841wrt.45.1689926336424; Fri, 21 Jul 2023 00:58:56 -0700 (PDT) X-Google-Smtp-Source: APBJJlHidrlV6ut/P6AGZyG//+hfTFRQfLD41RE3t6gFtW0P8dq2RF0fuunZIegUj7e2SS5Snlr4dg== X-Received: by 2002:a5d:6103:0:b0:313:e559:2d4c with SMTP id v3-20020a5d6103000000b00313e5592d4cmr798794wrt.45.1689926336070; Fri, 21 Jul 2023 00:58:56 -0700 (PDT) Received: from vschneid.remote.csb ([149.12.7.81]) by smtp.gmail.com with ESMTPSA id i7-20020a05600011c700b00313fd294d6csm3510472wrx.7.2023.07.21.00.58.54 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 21 Jul 2023 00:58:55 -0700 (PDT) From: Valentin Schneider To: paulmck@kernel.org Cc: linux-kernel@vger.kernel.org, linux-trace-kernel@vger.kernel.org, linux-doc@vger.kernel.org, kvm@vger.kernel.org, linux-mm@kvack.org, bpf@vger.kernel.org, x86@kernel.org, rcu@vger.kernel.org, linux-kselftest@vger.kernel.org, Steven Rostedt , Masami Hiramatsu , Jonathan Corbet , Thomas Gleixner , Ingo Molnar , Borislav Petkov , Dave Hansen , "H. Peter Anvin" , Paolo Bonzini , Wanpeng Li , Vitaly Kuznetsov , Andy Lutomirski , Peter Zijlstra , Frederic Weisbecker , Neeraj Upadhyay , Joel Fernandes , Josh Triplett , Boqun Feng , Mathieu Desnoyers , Lai Jiangshan , Zqiang , Andrew Morton , Uladzislau Rezki , Christoph Hellwig , Lorenzo Stoakes , Josh Poimboeuf , Jason Baron , Kees Cook , Sami Tolvanen , Ard Biesheuvel , Nicholas Piggin , Juerg Haefliger , Nicolas Saenz Julienne , "Kirill A. Shutemov" , Nadav Amit , Dan Carpenter , Chuang Wang , Yang Jihong , Petr Mladek , "Jason A. Donenfeld" , Song Liu , Julian Pidancet , Tom Lendacky , Dionna Glaze , Thomas =?utf-8?Q?Wei=C3=9Fschuh?= , Juri Lelli , Daniel Bristot de Oliveira , Marcelo Tosatti , Yair Podemsky Subject: Re: [RFC PATCH v2 17/20] rcutorture: Add a test config to torture test low RCU_DYNTICKS width In-Reply-To: <5143d0a9-bc02-4b9a-8613-2383bfdee35c@paulmck-laptop> References: <20230720163056.2564824-1-vschneid@redhat.com> <20230720163056.2564824-18-vschneid@redhat.com> <24b55289-1c35-41cc-9ad3-baa957f1c9cb@paulmck-laptop> <5143d0a9-bc02-4b9a-8613-2383bfdee35c@paulmck-laptop> Date: Fri, 21 Jul 2023 08:58:53 +0100 Message-ID: MIME-Version: 1.0 X-Mimecast-Spam-Score: 0 X-Mimecast-Originator: redhat.com Content-Type: text/plain Precedence: bulk List-ID: X-Mailing-List: linux-trace-kernel@vger.kernel.org On 20/07/23 21:00, Paul E. McKenney wrote: > On Thu, Jul 20, 2023 at 12:53:05PM -0700, Paul E. McKenney wrote: >> On Thu, Jul 20, 2023 at 05:30:53PM +0100, Valentin Schneider wrote: >> > diff --git a/tools/testing/selftests/rcutorture/configs/rcu/TREE11 b/tools/testing/selftests/rcutorture/configs/rcu/TREE11 >> > new file mode 100644 >> > index 0000000000000..aa7274efd9819 >> > --- /dev/null >> > +++ b/tools/testing/selftests/rcutorture/configs/rcu/TREE11 >> > @@ -0,0 +1,19 @@ >> > +CONFIG_SMP=y >> > +CONFIG_NR_CPUS=8 >> > +CONFIG_PREEMPT_NONE=n >> > +CONFIG_PREEMPT_VOLUNTARY=y >> > +CONFIG_PREEMPT=n >> > +CONFIG_PREEMPT_DYNAMIC=n >> > +#CHECK#CONFIG_TREE_RCU=y >> > +CONFIG_HZ_PERIODIC=n >> > +CONFIG_NO_HZ_IDLE=n >> > +CONFIG_NO_HZ_FULL=y >> > +CONFIG_RCU_TRACE=y >> > +CONFIG_RCU_FANOUT=4 >> > +CONFIG_RCU_FANOUT_LEAF=3 >> > +CONFIG_DEBUG_LOCK_ALLOC=n >> > +CONFIG_DEBUG_OBJECTS_RCU_HEAD=n >> > +CONFIG_RCU_EXPERT=y >> > +CONFIG_RCU_EQS_DEBUG=y >> > +CONFIG_RCU_LAZY=y >> > +CONFIG_RCU_DYNTICKS_BITS=2 >> >> Why not just add this last line to the existing TREE04 scenario? >> That would ensure that it gets tested regularly without extending the >> time required to run a full set of rcutorture tests. > > Please see below for the version of this patch that I am running overnight > tests with. Does this one work for you? > Yep that's fine with me. I only went with a separate test file as wasn't sure how new test options should be handled (merged into existing tests vs new tests created), and didn't want to negatively impact TREE04 or TREE06. If merging into TREE04 is preferred, then I'll do just that and carry this path moving forwards. Thanks!