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 X-Spam-Level: X-Spam-Status: No, score=-4.2 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,FREEMAIL_FORGED_FROMDOMAIN,FREEMAIL_FROM, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,NICE_REPLY_A,SPF_HELO_NONE, SPF_PASS,USER_AGENT_SANE_1 autolearn=no autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 6A626C43460 for ; Thu, 29 Apr 2021 07:16:35 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 2D55561026 for ; Thu, 29 Apr 2021 07:16:33 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S233209AbhD2HRR (ORCPT ); Thu, 29 Apr 2021 03:17:17 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:57442 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230174AbhD2HRN (ORCPT ); Thu, 29 Apr 2021 03:17:13 -0400 Received: from mail-wm1-x32b.google.com (mail-wm1-x32b.google.com [IPv6:2a00:1450:4864:20::32b]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 09E17C06138B for ; Thu, 29 Apr 2021 00:16:27 -0700 (PDT) Received: by mail-wm1-x32b.google.com with SMTP id k128so35165540wmk.4 for ; Thu, 29 Apr 2021 00:16:26 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=from:to:cc:references:subject:message-id:date:user-agent :mime-version:in-reply-to:content-language:content-transfer-encoding; bh=aLrAuIG/XB/HLdtz6qPAEjGKpc8voLmrhSyadZU6mNM=; b=nKVHQoUkT4oiTgGhQgIdtpz236GF15yKCCvwLVEZzljdIlyE6Bi0UnMxjmJ8liZt7R Vd7cqy1xETWxLgnGILgqntX22OGMXd5dihngZ+B/KOpAvqdPdxqxUBy/S8axzh/F/l0l spBPwqveiqtBE2eURa/sfxG6D5mhWLKzFxQ8BWkubPcERiOQvZJZ3A75YvYScUQx3zwf Dxy0jiazQaVd+Gyic8G990YEEBDYH9AgY1Gw7ItxlitWG29brdtaXEuqmRrCbx02HdfG trJ6K5RsSB016E8pfG48ZqfDXtQ8md5vheWPgWrkv/GWUpV0LLPQNGNbQ1QuyYlQGwZS Kr6A== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:references:subject:message-id:date :user-agent:mime-version:in-reply-to:content-language :content-transfer-encoding; bh=aLrAuIG/XB/HLdtz6qPAEjGKpc8voLmrhSyadZU6mNM=; b=pekWHdOWtUDnU4M3gV1t5i31HthZbRJGN6gfXPoKTXCpQVmAuFEWH7zs8rNV4g/XSW WJg0FE+8wAXly4Qs5ecPRUilWe1OTOFoTfOXjKfFIQsdOZ3kdZlDsZXkAlxtAkGiOqJ7 qqiyYpenOJmn/dWtBDDOJWCYwNNhd3/po+UOPMad+jaSbBK8xB915CS9kl2rRj+tyY4U 4S4gn1wjg900lWIqzdEkTNA5+HXJNG3fQhgUhSOCId/NeRpRxbr3FmR/LgRqXn22MIzh 3ufyg+JRFVAOmECrZPfj3S+CqgLcMfy4NL5JsZVkTxZhmG6i3fIJudIi9oib9PcdynJ2 GAlg== X-Gm-Message-State: AOAM530OBcf23jXylbMWUavFqB7RadNA1AstzRxH6woDLcNvH7Z6ml+a Ft2V+kocWzaN460jU92L9WC1IQpksJBImg== X-Google-Smtp-Source: ABdhPJwPfMRNWQ4U08NMIYXaR3MsFwEWlOh12gZq29mS0ai4KeGRD1gWMaJOHXIYKECDJOO05yqMfQ== X-Received: by 2002:a7b:cc11:: with SMTP id f17mr36181731wmh.159.1619680585524; Thu, 29 Apr 2021 00:16:25 -0700 (PDT) Received: from ?IPv6:2003:ea:8f38:4600:cd3e:54f2:98f5:2e97? (p200300ea8f384600cd3e54f298f52e97.dip0.t-ipconnect.de. [2003:ea:8f38:4600:cd3e:54f2:98f5:2e97]) by smtp.googlemail.com with ESMTPSA id c5sm3317524wrs.73.2021.04.29.00.16.24 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Thu, 29 Apr 2021 00:16:25 -0700 (PDT) From: Heiner Kallweit To: Rasmus Villemoes , Luis Chamberlain Cc: Linux Kernel Mailing List References: Subject: Re: wait_for_initramfs warning from kernel_init_freeable() Message-ID: <4d6aa2dd-92df-4f36-10ac-cd003a0229f7@gmail.com> Date: Thu, 29 Apr 2021 09:16:18 +0200 User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:78.0) Gecko/20100101 Thunderbird/78.10.0 MIME-Version: 1.0 In-Reply-To: Content-Type: text/plain; charset=utf-8 Content-Language: en-US Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 29.04.2021 08:46, Heiner Kallweit wrote: > Since 97f8172f9a98 ("init/initramfs.c: do unpacking asynchronously") I get > the following warning early in the boot process from umh: > "wait_for_initramfs() called before rootfs_initcalls" > Some debugging lead me to the following call chain: > > kernel_init_freeable() > -> do_basic_setup() > -> driver_init() > -> platform_bus_init() > -> bus_register() > -> kset_register() > -> kobject_uvent() > Sorry, this is the first umh call, but at this time UMH_DISABLED is still set. The first umh call where UMH is enabled is the following: kernel_init_freeable() -> do_basic_setup() -> do_initcalls() -> do_one_initcall() -> wq_sysfs_init() <- core_initcall() -> subsys_virtual_register() -> bus_register()