From nobody Fri Apr 17 10:02:05 2026 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 58056375F86; Tue, 3 Mar 2026 23:59:06 +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=1772582346; cv=none; b=g15MjqD0+XTdObIab+exdeLMwUnr+KdxwRuLo/Ah3RDXaT35rqNzjVzYJd3784eWwNdLB9eXqIF+NO9Lu2txLJ1ulLCLdS9xU2ZO66cJnqGr5ZfdxG7sQNmnsoe+xObQJtjckze/MVNS6n4TqC/rLkBD3c5Z0aD8aoNhWI+8Wf4= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1772582346; c=relaxed/simple; bh=nO8CYYfzGFAugMvr1scTvmnivZv8/SWZWUO9Q9xFQD0=; h=From:To:Cc:Subject:Date:Message-Id:In-Reply-To:References: MIME-Version; b=eN4UFHoFZzbgkW8of+fSikZcD3yNNVPUU6jmOAz2hCn95mt/EMq9X/kK1sDBUV6GsGDCpvd4t2M4bMpc3kCqXJRQj7OGR5iEEsV7Wb8YBk2oj43INMbjuiraiZdzcfEOdKgNZvfydRR9qwF6DuOEUQxxlhmVADzQ7EELyRH5ySU= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=kS0prf0E; 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="kS0prf0E" Received: by smtp.kernel.org (Postfix) with ESMTPSA id EC09EC116C6; Tue, 3 Mar 2026 23:59:05 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1772582346; bh=nO8CYYfzGFAugMvr1scTvmnivZv8/SWZWUO9Q9xFQD0=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=kS0prf0EhFct9ns7RYZarOPWxSWsIZKWs4EcR1aav/zqEpNV0yOHh3Mx1mqDDXaHf 8jFuhe68HyditVMmPqyC+TPAWCeR9R9uXqakDJ1B2HUwfM/OsHA7D5aPK/T1T9MhYN vggBi7g4VLIEayFUWGRdNwhbC6u7CW7qDpAE13vlyEUUwBAMuFLGYgC58DjK6vrioi Qt+eo9qQFwGz71SNgIqyeicI8BiyAPEl/2jVDqy0SLEphlVbO1MWfEyac/cWgIigk3 OVk9v4k/M0ZhmYpP0G5zfMflhSRsiNKDTMbknd6X0aZBqw5xTN3SX2v/rFegegLhzU ZrN4WjUPcghVw== Received: by paulmck-ThinkPad-P17-Gen-1.home (Postfix, from userid 1000) id 9FE71CE0D66; Tue, 3 Mar 2026 15:59:05 -0800 (PST) From: "Paul E. McKenney" To: rcu@vger.kernel.org Cc: linux-kernel@vger.kernel.org, kernel-team@meta.com, rostedt@goodmis.org, "Paul E. McKenney" Subject: [PATCH 1/4] rcutorture: Update due to x86 not supporting none/voluntary preemption Date: Tue, 3 Mar 2026 15:59:00 -0800 Message-Id: <20260303235903.1967409-1-paulmck@kernel.org> X-Mailer: git-send-email 2.40.1 In-Reply-To: <2011d452-3c72-432a-af77-810238e80e6a@paulmck-laptop> References: <2011d452-3c72-432a-af77-810238e80e6a@paulmck-laptop> 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 Content-Type: text/plain; charset="utf-8" As of v7.0-rc1, architectures that support preemption, including x86 and arm64, no longer support CONFIG_PREEMPT_NONE or CONFIG_PREEMPT_VOLUNTARY. Attempting to build kernels with these two Kconfig options results in .config errors. This commit therefore switches such rcutorture scenarios to CONFIG_PREEMPT_LAZY. Signed-off-by: Paul E. McKenney --- tools/testing/selftests/rcutorture/configs/rcu/SRCU-N | 3 ++- tools/testing/selftests/rcutorture/configs/rcu/SRCU-T | 3 ++- tools/testing/selftests/rcutorture/configs/rcu/SRCU-U | 3 ++- tools/testing/selftests/rcutorture/configs/rcu/TASKS02 | 3 ++- tools/testing/selftests/rcutorture/configs/rcu/TINY01 | 3 ++- tools/testing/selftests/rcutorture/configs/rcu/TINY02 | 3 ++- tools/testing/selftests/rcutorture/configs/rcu/TRACE01 | 3 ++- tools/testing/selftests/rcutorture/configs/rcu/TREE04 | 3 ++- tools/testing/selftests/rcutorture/configs/rcu/TREE05 | 3 ++- tools/testing/selftests/rcutorture/configs/rcu/TREE06 | 3 ++- tools/testing/selftests/rcutorture/configs/rcu/TRIVIAL | 3 ++- 11 files changed, 22 insertions(+), 11 deletions(-) diff --git a/tools/testing/selftests/rcutorture/configs/rcu/SRCU-N b/tools/= testing/selftests/rcutorture/configs/rcu/SRCU-N index 07f5e0a70ae70..90797c9e9410e 100644 --- a/tools/testing/selftests/rcutorture/configs/rcu/SRCU-N +++ b/tools/testing/selftests/rcutorture/configs/rcu/SRCU-N @@ -2,7 +2,8 @@ CONFIG_RCU_TRACE=3Dn CONFIG_SMP=3Dy CONFIG_NR_CPUS=3D4 CONFIG_HOTPLUG_CPU=3Dy -CONFIG_PREEMPT_NONE=3Dy +CONFIG_PREEMPT_LAZY=3Dy +CONFIG_PREEMPT_NONE=3Dn CONFIG_PREEMPT_VOLUNTARY=3Dn CONFIG_PREEMPT=3Dn #CHECK#CONFIG_RCU_EXPERT=3Dn diff --git a/tools/testing/selftests/rcutorture/configs/rcu/SRCU-T b/tools/= testing/selftests/rcutorture/configs/rcu/SRCU-T index c70cf0405f248..06e4d1030279c 100644 --- a/tools/testing/selftests/rcutorture/configs/rcu/SRCU-T +++ b/tools/testing/selftests/rcutorture/configs/rcu/SRCU-T @@ -1,5 +1,6 @@ CONFIG_SMP=3Dn -CONFIG_PREEMPT_NONE=3Dy +CONFIG_PREEMPT_LAZY=3Dy +CONFIG_PREEMPT_NONE=3Dn CONFIG_PREEMPT_VOLUNTARY=3Dn CONFIG_PREEMPT=3Dn CONFIG_PREEMPT_DYNAMIC=3Dn diff --git a/tools/testing/selftests/rcutorture/configs/rcu/SRCU-U b/tools/= testing/selftests/rcutorture/configs/rcu/SRCU-U index bc9eeabaa1b18..540fa4ee6b1ba 100644 --- a/tools/testing/selftests/rcutorture/configs/rcu/SRCU-U +++ b/tools/testing/selftests/rcutorture/configs/rcu/SRCU-U @@ -1,5 +1,6 @@ CONFIG_SMP=3Dn -CONFIG_PREEMPT_NONE=3Dy +CONFIG_PREEMPT_LAZY=3Dy +CONFIG_PREEMPT_NONE=3Dn CONFIG_PREEMPT_VOLUNTARY=3Dn CONFIG_PREEMPT=3Dn CONFIG_PREEMPT_DYNAMIC=3Dn diff --git a/tools/testing/selftests/rcutorture/configs/rcu/TASKS02 b/tools= /testing/selftests/rcutorture/configs/rcu/TASKS02 index 2f9fcffff5ae3..dd2bd4e08da4e 100644 --- a/tools/testing/selftests/rcutorture/configs/rcu/TASKS02 +++ b/tools/testing/selftests/rcutorture/configs/rcu/TASKS02 @@ -1,5 +1,6 @@ CONFIG_SMP=3Dn -CONFIG_PREEMPT_NONE=3Dy +CONFIG_PREEMPT_LAZY=3Dy +CONFIG_PREEMPT_NONE=3Dn CONFIG_PREEMPT_VOLUNTARY=3Dn CONFIG_PREEMPT=3Dn CONFIG_PREEMPT_DYNAMIC=3Dn diff --git a/tools/testing/selftests/rcutorture/configs/rcu/TINY01 b/tools/= testing/selftests/rcutorture/configs/rcu/TINY01 index bd5ed7b0da5f0..37be5468c9d9f 100644 --- a/tools/testing/selftests/rcutorture/configs/rcu/TINY01 +++ b/tools/testing/selftests/rcutorture/configs/rcu/TINY01 @@ -1,5 +1,6 @@ CONFIG_SMP=3Dn -CONFIG_PREEMPT_NONE=3Dy +CONFIG_PREEMPT_LAZY=3Dy +CONFIG_PREEMPT_NONE=3Dn CONFIG_PREEMPT_VOLUNTARY=3Dn CONFIG_PREEMPT=3Dn CONFIG_PREEMPT_DYNAMIC=3Dn diff --git a/tools/testing/selftests/rcutorture/configs/rcu/TINY02 b/tools/= testing/selftests/rcutorture/configs/rcu/TINY02 index 30439f6fc20e6..be8860342ef71 100644 --- a/tools/testing/selftests/rcutorture/configs/rcu/TINY02 +++ b/tools/testing/selftests/rcutorture/configs/rcu/TINY02 @@ -1,5 +1,6 @@ CONFIG_SMP=3Dn -CONFIG_PREEMPT_NONE=3Dy +CONFIG_PREEMPT_LAZY=3Dy +CONFIG_PREEMPT_NONE=3Dn CONFIG_PREEMPT_VOLUNTARY=3Dn CONFIG_PREEMPT=3Dn CONFIG_PREEMPT_DYNAMIC=3Dn diff --git a/tools/testing/selftests/rcutorture/configs/rcu/TRACE01 b/tools= /testing/selftests/rcutorture/configs/rcu/TRACE01 index 18efab346381a..8fb124c28f283 100644 --- a/tools/testing/selftests/rcutorture/configs/rcu/TRACE01 +++ b/tools/testing/selftests/rcutorture/configs/rcu/TRACE01 @@ -1,7 +1,8 @@ CONFIG_SMP=3Dy CONFIG_NR_CPUS=3D5 CONFIG_HOTPLUG_CPU=3Dy -CONFIG_PREEMPT_NONE=3Dy +CONFIG_PREEMPT_LAZY=3Dy +CONFIG_PREEMPT_NONE=3Dn CONFIG_PREEMPT_VOLUNTARY=3Dn CONFIG_PREEMPT=3Dn CONFIG_PREEMPT_DYNAMIC=3Dn diff --git a/tools/testing/selftests/rcutorture/configs/rcu/TREE04 b/tools/= testing/selftests/rcutorture/configs/rcu/TREE04 index f49fda1c88811..f9d54ddc73a20 100644 --- a/tools/testing/selftests/rcutorture/configs/rcu/TREE04 +++ b/tools/testing/selftests/rcutorture/configs/rcu/TREE04 @@ -1,7 +1,8 @@ CONFIG_SMP=3Dy CONFIG_NR_CPUS=3D8 +CONFIG_PREEMPT_LAZY=3Dy CONFIG_PREEMPT_NONE=3Dn -CONFIG_PREEMPT_VOLUNTARY=3Dy +CONFIG_PREEMPT_VOLUNTARY=3Dn CONFIG_PREEMPT=3Dn CONFIG_PREEMPT_DYNAMIC=3Dn CONFIG_PREEMPT_LAZY=3Dn diff --git a/tools/testing/selftests/rcutorture/configs/rcu/TREE05 b/tools/= testing/selftests/rcutorture/configs/rcu/TREE05 index 0513aa33c32c4..93a17fe050bd4 100644 --- a/tools/testing/selftests/rcutorture/configs/rcu/TREE05 +++ b/tools/testing/selftests/rcutorture/configs/rcu/TREE05 @@ -1,6 +1,7 @@ CONFIG_SMP=3Dy CONFIG_NR_CPUS=3D8 -CONFIG_PREEMPT_NONE=3Dy +CONFIG_PREEMPT_LAZY=3Dy +CONFIG_PREEMPT_NONE=3Dn CONFIG_PREEMPT_VOLUNTARY=3Dn CONFIG_PREEMPT=3Dn CONFIG_PREEMPT_LAZY=3Dn diff --git a/tools/testing/selftests/rcutorture/configs/rcu/TREE06 b/tools/= testing/selftests/rcutorture/configs/rcu/TREE06 index bfd88c46dbd73..73a8945780abd 100644 --- a/tools/testing/selftests/rcutorture/configs/rcu/TREE06 +++ b/tools/testing/selftests/rcutorture/configs/rcu/TREE06 @@ -1,6 +1,7 @@ CONFIG_SMP=3Dy CONFIG_NR_CPUS=3D8 -CONFIG_PREEMPT_NONE=3Dy +CONFIG_PREEMPT_LAZY=3Dy +CONFIG_PREEMPT_NONE=3Dn CONFIG_PREEMPT_VOLUNTARY=3Dn CONFIG_PREEMPT=3Dn CONFIG_PREEMPT_LAZY=3Dn diff --git a/tools/testing/selftests/rcutorture/configs/rcu/TRIVIAL b/tools= /testing/selftests/rcutorture/configs/rcu/TRIVIAL index 5d546efa68e83..d18cfbd606220 100644 --- a/tools/testing/selftests/rcutorture/configs/rcu/TRIVIAL +++ b/tools/testing/selftests/rcutorture/configs/rcu/TRIVIAL @@ -1,6 +1,7 @@ CONFIG_SMP=3Dy CONFIG_NR_CPUS=3D8 -CONFIG_PREEMPT_NONE=3Dy +CONFIG_PREEMPT_LAZY=3Dy +CONFIG_PREEMPT_NONE=3Dn CONFIG_PREEMPT_VOLUNTARY=3Dn CONFIG_PREEMPT=3Dn CONFIG_HZ_PERIODIC=3Dn --=20 2.40.1 From nobody Fri Apr 17 10:02:05 2026 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 57FAB375AB8; Tue, 3 Mar 2026 23:59:06 +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=1772582346; cv=none; b=tMwsZNI4I8hokAUbIjOHvBr1b7zfQzkqpET2V7G8W929OM6JndjjxoylzwRLJnZGN4J5jHYHWMrsL2cZk18ooRbFRtWUfB3ODiyMIx4GHLo916yCuUmK6W+IQMLUYUjlHuEHMZM1giYyvGGiG+h//mCEld6PVjZ/eII2mBkc+j4= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1772582346; c=relaxed/simple; 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Hdqwo4q8UYivNAPJrojAa9nqN5tTQhGIlTbZ4/rzzssB0oLKIqXhMhxqcXXDsZqrDW +KkVoj6VWwJN4aBudq+vLH6vFuaYISkrtf3N8E/NgC/NF0MG5gWtn40rSCm45XUPtX SUdBnx0ytGX/lxp7XAVQnSomdPtbZgXJJpYbv/eREAlcedp4o9cYZcWlxYXelENXff qvPoPNfR2hYpNoSrkB5e3X83jBwedsGlL1FfwMwwfX+vwO3Hrbavht7IMgICputtER BkxiezXLVyaTw== Received: by paulmck-ThinkPad-P17-Gen-1.home (Postfix, from userid 1000) id A2D78CE0DFD; Tue, 3 Mar 2026 15:59:05 -0800 (PST) From: "Paul E. McKenney" To: rcu@vger.kernel.org Cc: linux-kernel@vger.kernel.org, kernel-team@meta.com, rostedt@goodmis.org, "Paul E. McKenney" Subject: [PATCH 2/4] rcuscale: Update due to x86 not supporting none/voluntary preemption Date: Tue, 3 Mar 2026 15:59:01 -0800 Message-Id: <20260303235903.1967409-2-paulmck@kernel.org> X-Mailer: git-send-email 2.40.1 In-Reply-To: <2011d452-3c72-432a-af77-810238e80e6a@paulmck-laptop> References: <2011d452-3c72-432a-af77-810238e80e6a@paulmck-laptop> 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 Content-Type: text/plain; charset="utf-8" As of v7.0-rc1, architectures that support preemption, including x86 and arm64, no longer support CONFIG_PREEMPT_NONE or CONFIG_PREEMPT_VOLUNTARY. Attempting to build kernels with these two Kconfig options results in .config errors. This commit therefore switches such rcuscale scenarios to CONFIG_PREEMPT_LAZY. Signed-off-by: Paul E. McKenney --- tools/testing/selftests/rcutorture/configs/rcuscale/TINY | 3 ++- tools/testing/selftests/rcutorture/configs/rcuscale/TRACE01 | 3 ++- 2 files changed, 4 insertions(+), 2 deletions(-) diff --git a/tools/testing/selftests/rcutorture/configs/rcuscale/TINY b/too= ls/testing/selftests/rcutorture/configs/rcuscale/TINY index 0fa2dc086e10c..c1a7d38823fba 100644 --- a/tools/testing/selftests/rcutorture/configs/rcuscale/TINY +++ b/tools/testing/selftests/rcutorture/configs/rcuscale/TINY @@ -1,5 +1,6 @@ CONFIG_SMP=3Dn -CONFIG_PREEMPT_NONE=3Dy +CONFIG_PREEMPT_LAZY=3Dy +CONFIG_PREEMPT_NONE=3Dn CONFIG_PREEMPT_VOLUNTARY=3Dn CONFIG_PREEMPT=3Dn CONFIG_PREEMPT_DYNAMIC=3Dn diff --git a/tools/testing/selftests/rcutorture/configs/rcuscale/TRACE01 b/= tools/testing/selftests/rcutorture/configs/rcuscale/TRACE01 index 0059592c7408a..f3f1368b83869 100644 --- a/tools/testing/selftests/rcutorture/configs/rcuscale/TRACE01 +++ b/tools/testing/selftests/rcutorture/configs/rcuscale/TRACE01 @@ -1,5 +1,6 @@ CONFIG_SMP=3Dy -CONFIG_PREEMPT_NONE=3Dy +CONFIG_PREEMPT_LAZY=3Dy +CONFIG_PREEMPT_NONE=3Dn CONFIG_PREEMPT_VOLUNTARY=3Dn CONFIG_PREEMPT=3Dn CONFIG_PREEMPT_DYNAMIC=3Dn --=20 2.40.1 From nobody Fri Apr 17 10:02:05 2026 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 3A2AE374E71; Tue, 3 Mar 2026 23:59:06 +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=1772582346; cv=none; b=ge6G5OZsUVLBFhbUnGigdq4WCyajgXqudOMgahoKVWSXZQ7LEzKXfhRyaSVJwce3GSQqHHDiBhK9RE0MiMq6xfc/dhvWGv0bGiTQEH0pKh0M7gplkeJT7Wq/1ixcCY3ArgBctaUTcACv5XDHVZNiZiLDkxa1lcWqsFyGgRzE3/M= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1772582346; c=relaxed/simple; bh=29HujnpIDyQeuQ4aBMq1py7s65mTBAwLmw/6N6QEet0=; h=From:To:Cc:Subject:Date:Message-Id:In-Reply-To:References: MIME-Version; b=r0X6kyyufBhkWoU81wzkQR04muSCm9Vc4m/Yo38dNvk1eYoONiKZggC5phnTQILLj8UEz83bZuOW2LXWZU8+mUHFBu+iFtNATCN7J1wRQxLxfwzHOYdRJEGJnXcQdwPf8i5gKgGzZ+Om+2pOJtEDuEgP4K9Tho3f/eIY5RSbjLI= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=VCGUQUbk; 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="VCGUQUbk" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 0D58EC2BCAF; Tue, 3 Mar 2026 23:59:06 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1772582346; bh=29HujnpIDyQeuQ4aBMq1py7s65mTBAwLmw/6N6QEet0=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=VCGUQUbkemkbjuzZGLyFsswUiwy25VkxRDYvLUdxv0lsmNYYs8Hx168rwXeqHerIl 1qXV8pVruwYiGEeHHEn+ngpITO58NJwH6HuPUs1gtVtvVuQg4uGy9BF07dPT3rHW5S n9Lpo80mFGTPIMKpD35SFcg7UP54FwNLuG/xAQpl7LORihe53mYqhhA1ttt+V36F4t /UrOWlBQbUll9y7Y85AJGMvzaWgRAxE0iHMIkpMOIPiOxhXp+OKiRz0SMds5kiwhUD 7aWLKDPQo/qAM8kaigQViw0D1tIpJxG+xlrRt1EZ9Cd5FGOXwSSn0JaLP0cRp+OWVj OR3eoTGsLV2Tg== Received: by paulmck-ThinkPad-P17-Gen-1.home (Postfix, from userid 1000) id A5704CE0ED1; Tue, 3 Mar 2026 15:59:05 -0800 (PST) From: "Paul E. McKenney" To: rcu@vger.kernel.org Cc: linux-kernel@vger.kernel.org, kernel-team@meta.com, rostedt@goodmis.org, "Paul E. McKenney" Subject: [PATCH 3/4] refscale: Update due to x86 not supporting none/voluntary preemption Date: Tue, 3 Mar 2026 15:59:02 -0800 Message-Id: <20260303235903.1967409-3-paulmck@kernel.org> X-Mailer: git-send-email 2.40.1 In-Reply-To: <2011d452-3c72-432a-af77-810238e80e6a@paulmck-laptop> References: <2011d452-3c72-432a-af77-810238e80e6a@paulmck-laptop> 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 Content-Type: text/plain; charset="utf-8" As of v7.0-rc1, architectures that support preemption, including x86 and arm64, no longer support CONFIG_PREEMPT_NONE or CONFIG_PREEMPT_VOLUNTARY. Attempting to build kernels with these two Kconfig options results in .config errors. This commit therefore switches such refscale scenarios to CONFIG_PREEMPT_LAZY. Signed-off-by: Paul E. McKenney --- tools/testing/selftests/rcutorture/configs/refscale/NOPREEMPT | 3 ++- tools/testing/selftests/rcutorture/configs/refscale/TINY | 3 ++- 2 files changed, 4 insertions(+), 2 deletions(-) diff --git a/tools/testing/selftests/rcutorture/configs/refscale/NOPREEMPT = b/tools/testing/selftests/rcutorture/configs/refscale/NOPREEMPT index 67f9d2998afd3..1f215e17cbae2 100644 --- a/tools/testing/selftests/rcutorture/configs/refscale/NOPREEMPT +++ b/tools/testing/selftests/rcutorture/configs/refscale/NOPREEMPT @@ -1,5 +1,6 @@ CONFIG_SMP=3Dy -CONFIG_PREEMPT_NONE=3Dy +CONFIG_PREEMPT_LAZY=3Dy +CONFIG_PREEMPT_NONE=3Dn CONFIG_PREEMPT_VOLUNTARY=3Dn CONFIG_PREEMPT=3Dn CONFIG_PREEMPT_DYNAMIC=3Dn diff --git a/tools/testing/selftests/rcutorture/configs/refscale/TINY b/too= ls/testing/selftests/rcutorture/configs/refscale/TINY index 759343980b80d..9a11b578ff344 100644 --- a/tools/testing/selftests/rcutorture/configs/refscale/TINY +++ b/tools/testing/selftests/rcutorture/configs/refscale/TINY @@ -1,5 +1,6 @@ CONFIG_SMP=3Dn -CONFIG_PREEMPT_NONE=3Dy +CONFIG_PREEMPT_LAZY=3Dy +CONFIG_PREEMPT_NONE=3Dn CONFIG_PREEMPT_VOLUNTARY=3Dn CONFIG_PREEMPT=3Dn CONFIG_PREEMPT_DYNAMIC=3Dn --=20 2.40.1 From nobody Fri Apr 17 10:02:05 2026 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 580E1375F91; Tue, 3 Mar 2026 23:59:06 +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=1772582346; cv=none; b=jW2BxeD6GaZGFJwbYC1sLfKa60943JIv01coq7AU0xC35H63nrTkhKtXWSN7wKTe86KPaxCeLEMl4sV1fkuqmIED2IPKk5rNkyOftvFUYHjlt3WeP/Nv7j9TRlasCQf+nmQEDszmedrkYWnQdmk1cxbEF+lpW52qSTfkEoLnxiM= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1772582346; c=relaxed/simple; bh=vKjLzYNjaY051GqOnWGytDflMESzjuWZkHPzFfNrKiA=; h=From:To:Cc:Subject:Date:Message-Id:In-Reply-To:References: MIME-Version; b=L66UoE7DNLy0iNF1FuUUNbxUcGJPMfgfhA4ryBYuvbx2eF7NN/v78iz3BrqgTiQWeoX2pRyOz6FeLPYMlrVEe4MI1jTYe2wF0MASyTkZaIvw8iRAo1G2lcleBGupkKIujMApr6BeKuZUqQ2gLC68v/42cNezlDUvnm4ER5EQAls= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=oXDefOl8; 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="oXDefOl8" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 13842C2BCB0; Tue, 3 Mar 2026 23:59:06 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1772582346; bh=vKjLzYNjaY051GqOnWGytDflMESzjuWZkHPzFfNrKiA=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=oXDefOl8zsRPoN7u1KTXUbIjw6NpcffDNM8oMpGUdEHZ1aUS91uE0tb7PbViBm4ks +kkGCCursQ87165P6IdN7ZCOwLNZ4WCHPB73liUO/PRIOIIcEXhrWKF34MHLbyHvd7 7L7FY6j/XWT1bhryTgjRW0V/N7wiEiUCwM57AJgy7klZfkV5Ubst6DX77/8rQqbA1j sn42P8uESSF6FR44emzTC9Mvank7KR8dhZuG/V9gb68MdOqe06qHho5G8Rz+aXOyFt gpNoPcNqdojQo3ln7MqMmr4vToE6QgxeiZ1n/8dzrgq7wwupzpcSCaVbgKe6CpFc4H TmslSeOcapDdw== Received: by paulmck-ThinkPad-P17-Gen-1.home (Postfix, from userid 1000) id A7EFCCE0EDC; Tue, 3 Mar 2026 15:59:05 -0800 (PST) From: "Paul E. McKenney" To: rcu@vger.kernel.org Cc: linux-kernel@vger.kernel.org, kernel-team@meta.com, rostedt@goodmis.org, "Paul E. McKenney" Subject: [PATCH 4/4] scftorture: Update due to x86 not supporting none/voluntary preemption Date: Tue, 3 Mar 2026 15:59:03 -0800 Message-Id: <20260303235903.1967409-4-paulmck@kernel.org> X-Mailer: git-send-email 2.40.1 In-Reply-To: <2011d452-3c72-432a-af77-810238e80e6a@paulmck-laptop> References: <2011d452-3c72-432a-af77-810238e80e6a@paulmck-laptop> 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 Content-Type: text/plain; charset="utf-8" As of v7.0-rc1, architectures that support preemption, including x86 and arm64, no longer support CONFIG_PREEMPT_NONE or CONFIG_PREEMPT_VOLUNTARY. Attempting to build kernels with these two Kconfig options results in .config errors. This commit therefore switches such scftorture scenarios to CONFIG_PREEMPT_LAZY. Signed-off-by: Paul E. McKenney --- tools/testing/selftests/rcutorture/configs/scf/NOPREEMPT | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/tools/testing/selftests/rcutorture/configs/scf/NOPREEMPT b/too= ls/testing/selftests/rcutorture/configs/scf/NOPREEMPT index 6133f54ce2a7d..f9621e2770a41 100644 --- a/tools/testing/selftests/rcutorture/configs/scf/NOPREEMPT +++ b/tools/testing/selftests/rcutorture/configs/scf/NOPREEMPT @@ -1,5 +1,6 @@ CONFIG_SMP=3Dy -CONFIG_PREEMPT_NONE=3Dy +CONFIG_PREEMPT_LAZY=3Dy +CONFIG_PREEMPT_NONE=3Dn CONFIG_PREEMPT_VOLUNTARY=3Dn CONFIG_PREEMPT=3Dn CONFIG_PREEMPT_DYNAMIC=3Dn --=20 2.40.1