From nobody Wed Dec 17 06:10:11 2025 Received: from us-smtp-delivery-124.mimecast.com (us-smtp-delivery-124.mimecast.com [170.10.133.124]) (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 3C0EF328628 for ; Fri, 14 Nov 2025 15:03:31 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=170.10.133.124 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1763132612; cv=none; b=k2uWLhSNe/AjPUm2HNIZZEdZpqaCuBS4U85fg+4jOeXRkd6JEoR88MrGNhJCEmlvLrejko0GPMNrXbPPrXXhIF7b4JtDHBdcePn/Fry6ZtqE+wgp9bFkDpvoVKBl5RDJ4WGaxpzu6YbMt5//r+wbyo45gTJq3ghH/fWnghqXZDs= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1763132612; c=relaxed/simple; bh=snOpAJVDQ+hRntc+Abp5FCniuZuLGkuG33n3ekWfFvA=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=FOciPSh/ljN0huPeHjDC8PUXdzNulm5HQjDmDj8r2L5BShYn3i9F5GcPBfDm9/t8x+n9FKayoUKPCcFIVVhKQaeItD897nn2Q/HJ9pYT+8KynZZ6B+h2jCJZ/a8QRXZ20ZGuwsW/5fWrYR6plmsOewdaEzVHbROgqAWkne2hJVQ= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=quarantine dis=none) header.from=redhat.com; spf=pass smtp.mailfrom=redhat.com; dkim=pass (1024-bit key) header.d=redhat.com header.i=@redhat.com header.b=ELclghTz; arc=none smtp.client-ip=170.10.133.124 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=quarantine dis=none) header.from=redhat.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=redhat.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=redhat.com header.i=@redhat.com header.b="ELclghTz" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1763132610; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=W0yyCaz4IBzCuynoK7eJFq8qb8jjHV9aZwpbdt5Xpuk=; b=ELclghTzpwJWjR/UR+37efBuUNW3hHvHIUUhn9zdQ48DCauW/JKaepPcVxtipxLYdfPz1s TJlWlVYi3iWbOA+tzfvPwjIPhRqRVOdJu1ddQWwVZ12J5scAeXGp4aXLrUrSE5IQNdiYXs HS3Fnk+Wp5vdica94wXD+ZwjlDZ+yBI= Received: from mx-prod-mc-06.mail-002.prod.us-west-2.aws.redhat.com (ec2-35-165-154-97.us-west-2.compute.amazonaws.com [35.165.154.97]) by relay.mimecast.com with ESMTP with STARTTLS (version=TLSv1.3, cipher=TLS_AES_256_GCM_SHA384) id us-mta-486-neiQKoMHNwSSwPFkEubsAQ-1; Fri, 14 Nov 2025 10:03:27 -0500 X-MC-Unique: neiQKoMHNwSSwPFkEubsAQ-1 X-Mimecast-MFC-AGG-ID: neiQKoMHNwSSwPFkEubsAQ_1763132601 Received: from mx-prod-int-03.mail-002.prod.us-west-2.aws.redhat.com (mx-prod-int-03.mail-002.prod.us-west-2.aws.redhat.com [10.30.177.12]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (2048 bits) server-digest SHA256) (No client certificate requested) by mx-prod-mc-06.mail-002.prod.us-west-2.aws.redhat.com (Postfix) with ESMTPS id 621861800107; Fri, 14 Nov 2025 15:03:20 +0000 (UTC) Received: from vschneid-thinkpadt14sgen2i.remote.csb (unknown [10.45.226.10]) by mx-prod-int-03.mail-002.prod.us-west-2.aws.redhat.com (Postfix) with ESMTPS id 848421956048; Fri, 14 Nov 2025 15:03:06 +0000 (UTC) From: Valentin Schneider To: linux-kernel@vger.kernel.org, linux-mm@kvack.org, rcu@vger.kernel.org, x86@kernel.org, linux-arm-kernel@lists.infradead.org, loongarch@lists.linux.dev, linux-riscv@lists.infradead.org, linux-arch@vger.kernel.org, linux-trace-kernel@vger.kernel.org Cc: "Paul E. McKenney" , Frederic Weisbecker , Thomas Gleixner , Ingo Molnar , Borislav Petkov , Dave Hansen , "H. Peter Anvin" , Andy Lutomirski , Peter Zijlstra , Arnaldo Carvalho de Melo , Josh Poimboeuf , Paolo Bonzini , Arnd Bergmann , Jason Baron , Steven Rostedt , Ard Biesheuvel , Sami Tolvanen , "David S. Miller" , Neeraj Upadhyay , Joel Fernandes , Josh Triplett , Boqun Feng , Uladzislau Rezki , Mathieu Desnoyers , Mel Gorman , Andrew Morton , Masahiro Yamada , Han Shen , Rik van Riel , Jann Horn , Dan Carpenter , Oleg Nesterov , Juri Lelli , Clark Williams , Yair Podemsky , Marcelo Tosatti , Daniel Wagner , Petr Tesarik , Shrikanth Hegde Subject: [PATCH v7 04/31] rcutorture: Make TREE04 use CONFIG_RCU_DYNTICKS_TORTURE Date: Fri, 14 Nov 2025 16:01:06 +0100 Message-ID: <20251114150133.1056710-5-vschneid@redhat.com> In-Reply-To: <20251114150133.1056710-1-vschneid@redhat.com> References: <20251114150133.1056710-1-vschneid@redhat.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-Scanned-By: MIMEDefang 3.0 on 10.30.177.12 Content-Type: text/plain; charset="utf-8" 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 Reviewed-by: Frederic Weisbecker --- 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=3Dn CONFIG_RCU_EXPERT=3Dy CONFIG_RCU_EQS_DEBUG=3Dy CONFIG_RCU_LAZY=3Dy +CONFIG_RCU_DYNTICKS_TORTURE=3Dy --=20 2.51.0