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 03F04C04A6A for ; Fri, 21 Jul 2023 15:09:41 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231788AbjGUPJQ (ORCPT ); Fri, 21 Jul 2023 11:09:16 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:44454 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231818AbjGUPI7 (ORCPT ); Fri, 21 Jul 2023 11:08:59 -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 D2A3430EF for ; Fri, 21 Jul 2023 08:08:10 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1689952090; 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=B0XnA9BE8o3D7MPThucf/ZBJtbCoqYoCMw1W8WX/w6k=; b=EHkYpasJZsFd5iXjGYYJco08SR4fRzI2pdenG1qOmKr026tnnZu0snIEKydQmpBe/xTPMM 3i9U3ESpqqF0IAUTgi4AfObTzST4M5bYa+iUKWP+NqGcwhXfr5TvJY4nUBRf7QCbqmh3P4 gUbCAHy+zW0tFdC3tEPqLKZ5kSx85rA= Received: from mail-wr1-f71.google.com (mail-wr1-f71.google.com [209.85.221.71]) by relay.mimecast.com with ESMTP with STARTTLS (version=TLSv1.3, cipher=TLS_AES_256_GCM_SHA384) id us-mta-428-7nkaHz6nNG-BPc1F523glg-1; Fri, 21 Jul 2023 11:08:08 -0400 X-MC-Unique: 7nkaHz6nNG-BPc1F523glg-1 Received: by mail-wr1-f71.google.com with SMTP id ffacd0b85a97d-30e4943ca7fso1048718f8f.3 for ; Fri, 21 Jul 2023 08:08:08 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20221208; t=1689952087; x=1690556887; 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=B0XnA9BE8o3D7MPThucf/ZBJtbCoqYoCMw1W8WX/w6k=; b=O3o9ji1i/4KQvqzSrryqx37jsRz3ekClaj96pKHnMY7Zl1RVNEXM3FMSMWP3a7Sz2R jyJhnr0GTkiyrb/b7zgc1jtFOCYmLtNVEUVdMTqtH05bX9P1tHhRi7Ig570bxLtKHK79 co6uWL6P9LuOX/EK8FeMHDkS0/PwyLqcBA3TuiTfRWThOFW5G76Pev7cji1UZ1uSVsI3 uDN4l1cO5MHJgsYs6gT+pXlnwELgYFcI11n28rjlOl5InfxVBaA9o4Sl13JJZM/gtkx2 5X6VHM2uCrn7VF5gO8bwtAzyWJmCXaKqerSRMKUW6/Nc8McGA+v4AHAIZpTU97R0Fh/1 8cCA== X-Gm-Message-State: ABy/qLanisN9MSULEKN7yPzCgWU5H/ww9Kg1JuChON5iSvi0XcVFRHyz Xni7ZsDJ212SG4nxF3a1YscbvNE2y0c+3HSNogOVN2KcFWvFfA5G8H1o++Zytc7zuQqZz/AM2VW DUVLPX6wBrkZWpHzvqKKFkbZRjh4iWAFc X-Received: by 2002:a5d:65d0:0:b0:311:180d:cf38 with SMTP id e16-20020a5d65d0000000b00311180dcf38mr1610855wrw.24.1689952087594; Fri, 21 Jul 2023 08:08:07 -0700 (PDT) X-Google-Smtp-Source: APBJJlHaTM5vQ7KW9sCHDc43jdJFwo9+cb7+zAoGs4JK1/FURFo7hfFESg+0SCq3xlf/D0c/gEW3UQ== X-Received: by 2002:a5d:65d0:0:b0:311:180d:cf38 with SMTP id e16-20020a5d65d0000000b00311180dcf38mr1610794wrw.24.1689952087302; Fri, 21 Jul 2023 08:08:07 -0700 (PDT) Received: from vschneid.remote.csb ([149.12.7.81]) by smtp.gmail.com with ESMTPSA id j6-20020adfff86000000b0031274a184d5sm4426018wrr.109.2023.07.21.08.08.05 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 21 Jul 2023 08:08:06 -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: <7d2fdbb7-e574-40e8-8561-40a3873abc88@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> <7d2fdbb7-e574-40e8-8561-40a3873abc88@paulmck-laptop> Date: Fri, 21 Jul 2023 16:08:04 +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 21/07/23 07:07, Paul E. McKenney wrote: > On Fri, Jul 21, 2023 at 08:58:53AM +0100, Valentin Schneider wrote: >> 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. > > Things worked fine for this one-hour-per-scenario test run on my laptop, Many thanks for testing! > except for the CONFIG_SMP=n runs, which all got build errors like the > following. > Harumph, yes !SMP (and !CONTEXT_TRACKING_WORK) doesn't compile nicely, I'll fix that for v3.