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 AD997C7EE2E for ; Sun, 26 Feb 2023 19:45:18 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229760AbjBZTpR (ORCPT ); Sun, 26 Feb 2023 14:45:17 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:44200 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229379AbjBZTpP (ORCPT ); Sun, 26 Feb 2023 14:45:15 -0500 Received: from ams.source.kernel.org (ams.source.kernel.org [145.40.68.75]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id DC9C61287A; Sun, 26 Feb 2023 11:45:14 -0800 (PST) Received: from smtp.kernel.org (relay.kernel.org [52.25.139.140]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by ams.source.kernel.org (Postfix) with ESMTPS id 95B8EB80C8D; Sun, 26 Feb 2023 19:45:13 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id A6DC1C433EF; Sun, 26 Feb 2023 19:45:11 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1677440712; bh=OSwtZh3LVmcBE8L5v7Q9+ZP5zaBH8RmFfr6WYe81suE=; h=Date:From:To:Cc:Subject:References:In-Reply-To:From; b=nWLt8iPZi1F6Q6kRLiWNkjYEJoFkVMqsWrJHSh1zNZeLfyM3gkZ74ifkZ7f4MWpe0 6fVydqDUa/UUaKkQCWnnJzlBNm2SiKINCup0TilEjxKDxfCwR8VNljNqBe+9o3fKGn VJJJEkGetXiABdKXw042fauR2pzWXZeCCpnPV2OFe16J72nx9c6VQxkNBZ2C7R/p0n 85p8cwIAScEyXckthaTVqzXLMr7aLdBCkdzwuDx8c0yaLqy4u/yR6iSHXEhxf2nYYk AXLAyA/33pOdHHjrQGFq7MRQyhxzQa5SQF4xSdJgv8ULiALab86CcBSRaqdZfHMhvi IpJktS5fuATIA== Date: Sun, 26 Feb 2023 20:45:08 +0100 From: Frederic Weisbecker To: "Joel Fernandes (Google)" Cc: linux-kernel@vger.kernel.org, Lai Jiangshan , linux-doc@vger.kernel.org, "Paul E. McKenney" , rcu@vger.kernel.org Subject: Re: [PATCH RFC v2] rcu: Add a minimum time for marking boot as completed Message-ID: References: <20230225033421.3323164-1-joel@joelfernandes.org> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20230225033421.3323164-1-joel@joelfernandes.org> Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Sat, Feb 25, 2023 at 03:34:21AM +0000, Joel Fernandes (Google) wrote: > On many systems, a great deal of boot happens after the kernel thinks the boot > has completed. It is difficult to determine if the system has really booted > from the kernel side. Is this only about kernel booting? What makes it hard to determine if the system has really booted? Thanks.