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 1C8D1288DB; Wed, 19 Jun 2024 01:56:59 +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=1718762220; cv=none; b=lqAbeIYzf1sSJ5cVXJ+oXqvUVb4lW4DXDEwepsOdplwW5oThV+5CIRFMyfW7cJ3TCsndtJV4NeRx5aiTFybjVU3Ru+VQAd3jLaU2GAju9Sw5pOPp90dMAB+D9iNJah88A9KUFcB++OpuMdKo31a3Es8eIinWpHdAixrRBYsQAeM= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1718762220; c=relaxed/simple; bh=qM9g82aAhHcHWHHDXwq112jmtCMvM2Ed7Rh0QLbeGA4=; h=Date:From:To:Cc:Subject:Message-ID:In-Reply-To:References: MIME-Version:Content-Type; b=mYQnddcSQv4oVc2OXlH+w2GTS8kRA7l7BT5cJm1apOor39hcrgy3stxmSNfeCHyWLVZ55Z/7y+OB26VUSC+ExdkxJ62jINr4slHpibSPiTOhFZFwL9YZf1xA2sUE7vSL2a+q+YMxXWY4D8JpmvVHP80YDvJlYf8e4+ef41WAftA= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=A8yEnALN; 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="A8yEnALN" Received: by smtp.kernel.org (Postfix) with ESMTPSA id E3E2BC3277B; Wed, 19 Jun 2024 01:56:58 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1718762219; bh=qM9g82aAhHcHWHHDXwq112jmtCMvM2Ed7Rh0QLbeGA4=; h=Date:From:To:Cc:Subject:In-Reply-To:References:From; b=A8yEnALN77pk70UrvY9lkBYxSaeNngaLlYSuGWoYFo8isFTQkvJ9UYJeAty34XdHs l+3ALNkjZcnCMJ+gb0b8aeUB3NZ1fQMBfmi66QP9QjRIY/f4o5tVg5FloD7+MhUpbd xmqTr7DXQoEaGDwJTe/HFYLHxXZaeacASGiN6VHMNhAtXo+TEyVvmGylDUiyxmZJ1v uh7SZJBy8itlGYRqoTZwX9kDfMIBAA8/sGTH5jJGVmwHs7vyguf2GOMq9Q43SZ5Jjl Por0H1R69QStXHze2xAYQFqhOf7ADG3UHdpE7aRTfGkP5IPJXwu++0sQog+P2bq/XR ZxiHovdwPCFrg== Date: Tue, 18 Jun 2024 18:56:57 -0700 From: Jakub Kicinski To: Sebastian Andrzej Siewior Cc: linux-kernel@vger.kernel.org, netdev@vger.kernel.org, "David S. Miller" , Daniel Bristot de Oliveira , Boqun Feng , Daniel Borkmann , Eric Dumazet , Frederic Weisbecker , Ingo Molnar , Paolo Abeni , Peter Zijlstra , Thomas Gleixner , Waiman Long , Will Deacon Subject: Re: [PATCH v7 net-next 00/15] locking: Introduce nested-BH locking. Message-ID: <20240618185657.32929506@kernel.org> In-Reply-To: <20240618072526.379909-1-bigeasy@linutronix.de> References: <20240618072526.379909-1-bigeasy@linutronix.de> Precedence: bulk X-Mailing-List: netdev@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit On Tue, 18 Jun 2024 09:13:16 +0200 Sebastian Andrzej Siewior wrote: > Disabling bottoms halves acts as per-CPU BKL. On PREEMPT_RT code within > local_bh_disable() section remains preemtible. As a result high prior > tasks (or threaded interrupts) will be blocked by lower-prio task (or > threaded interrupts) which are long running which includes softirq > sections. Trivial conflict on patch 8 but enough to make the build bots give up.. Please rebase?