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 Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 7F07EC43334 for ; Wed, 15 Jun 2022 18:00:32 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1345592AbiFOSAa (ORCPT ); Wed, 15 Jun 2022 14:00:30 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:43906 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S236325AbiFOSA3 (ORCPT ); Wed, 15 Jun 2022 14:00:29 -0400 Received: from mail-pf1-x429.google.com (mail-pf1-x429.google.com [IPv6:2607:f8b0:4864:20::429]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id C3DF02A718; Wed, 15 Jun 2022 11:00:28 -0700 (PDT) Received: by mail-pf1-x429.google.com with SMTP id w21so12169579pfc.0; Wed, 15 Jun 2022 11:00:28 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20210112; h=sender:date:from:to:cc:subject:message-id:references:mime-version :content-disposition:in-reply-to; bh=qMYjlX/UBpwrjGqKKro02HBfwEFDYsK2XO45mdFo3rc=; b=iWL6biHGhBZeoAug+7fTwhF5Z8oRPErcQ4qaaKocRXNdOEVfGRaDcnV7jYQW9IEYTc J0TWgdDXdbgGuW4xxy1+AGRhWWuacHBD6yw73HBcyGBJk173czqkY4NdE9aj5/yu2ynt NFn9TLNSeUYpuO/AgFOKym3dn0ls/qzUnA3fUU8MeXtP9PFHWstAdePV0a/9pCcnpMKw nJpcLnP8AfxVDHLjl9KgCwBboOnYXbC25kiNPzskKdm2lzHtAXHZPJ3b1iFFnyMH0uHP 35ah/WzMPy7Suq7zlC+uR46IW58giQharwLIRdr3r7AR3PHXrTNSubXUCJWeH4UnwS8N LsVQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=x-gm-message-state:sender:date:from:to:cc:subject:message-id :references:mime-version:content-disposition:in-reply-to; bh=qMYjlX/UBpwrjGqKKro02HBfwEFDYsK2XO45mdFo3rc=; b=cfJ0M2osXn8jcGBnuppK0G8PMfIJ0yU01KpTVQbjh9rfNz4iVp5miW39dKoQqzu3mt tElOM57xphkh5oy3GrfeGlN41my1S8rkvXOv081QCYOvvH2caRyIBM0wbUXwaUlwDEi5 bJ/K0017ngbwaouXikYjQQNLMaNX+0TtynEJ+nYqw1Jgti1bwtbCdyGUTfQE+xQvSsOZ 35Z0qSnRBnpqWEGCjYbIEgLPc7oHN/CiRw7Ohn96Yhj0dDr1zYjfhfCb75JMIxI/k4Mk UemnHJ333AsKRB6loEMQQuHVpvN4Uy4TqVKALfCMVJ9iHtY8nMKaDxUhQgY77p2MbHid w/SA== X-Gm-Message-State: AJIora+u6c2BNrRDiPw3H4XuuPzA1OmXtWggzi9fXBVnu1kSliNPDYCk fTDvJjOE2/4QxaCZxSxFlKFni+tMrTg= X-Google-Smtp-Source: AGRyM1s/f3aI6ssGuwvM1/e5X3UzRfBKmv9Krzu4r8jYIO/OY3lPSWmIxHHmAHSAkD7bBd/YaWUIkw== X-Received: by 2002:a63:6f8c:0:b0:408:bdc6:7726 with SMTP id k134-20020a636f8c000000b00408bdc67726mr916000pgc.110.1655316028285; Wed, 15 Jun 2022 11:00:28 -0700 (PDT) Received: from server.roeck-us.net ([2600:1700:e321:62f0:329c:23ff:fee3:9d7c]) by smtp.gmail.com with ESMTPSA id m24-20020a170902bb9800b0016203a92865sm9605090pls.107.2022.06.15.11.00.27 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 15 Jun 2022 11:00:27 -0700 (PDT) Sender: Guenter Roeck Date: Wed, 15 Jun 2022 11:00:26 -0700 From: Guenter Roeck To: Jan Kara Cc: Linus Torvalds , Thomas Backlund , Suzuki K Poulose , Greg Kroah-Hartman , Linux Kernel Mailing List , stable , Andrew Morton , Shuah Khan , patches@kernelci.org, lkft-triage@lists.linaro.org, Pavel Machek , Jon Hunter , Florian Fainelli , Sudip Mukherjee , Slade Watkins Subject: Re: [PATCH 5.15 000/251] 5.15.47-rc2 review Message-ID: <20220615180026.GA2146974@roeck-us.net> References: <20220615110022.yifrsvzxjsz2wky5@quack3.lan> <20220615133845.o2lzfe5s4dzdfvtg@quack3.lan> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20220615133845.o2lzfe5s4dzdfvtg@quack3.lan> Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Wed, Jun 15, 2022 at 03:38:45PM +0200, Jan Kara wrote: > On Wed 15-06-22 13:00:22, Jan Kara wrote: > > On Tue 14-06-22 12:00:22, Linus Torvalds wrote: > > > On Tue, Jun 14, 2022 at 11:51 AM Linus Torvalds > > > wrote: > > > > > > > > Or just make sure that noop_backing_dev_info is fully initialized > > > > before it's used. > > > > > > I don't see any real reason why that > > > > > > err = bdi_init(&noop_backing_dev_info); > > > > > > couldn't just be done very early. Maybe as the first call in > > > driver_init(), before the whole devtmpfs_init() etc. > > > > I've checked the dependencies and cgroups (which are the only non-trivial > > dependency besides per-CPU infrastructure) are initialized early enough so > > it should work fine. So let's try that. > > Attached patch boots for me. Guys, who was able to reproduce the failure: Can > you please confirm this patch fixes your problem? > It does for me. > Honza > -- > Jan Kara > SUSE Labs, CR > From 8f998b182be7563fc92aa8914cc7d21f75a3c20e Mon Sep 17 00:00:00 2001 > From: Jan Kara > Date: Wed, 15 Jun 2022 15:22:29 +0200 > Subject: [PATCH] init: Initialized noop_backing_dev_info early > > noop_backing_dev_info is used by superblocks of various > pseudofilesystems such as kdevtmpfs. Initialize it before the > filesystems get mounted. > > Signed-off-by: Jan Kara Tested-by: Guenter Roeck Guenter