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=-2.6 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,MAILING_LIST_MULTI,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 EC831C432C3 for ; Thu, 14 Nov 2019 22:42:18 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id B9EF4206E5 for ; Thu, 14 Nov 2019 22:42:18 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1573771338; bh=O5kDxSjh70qMy9SINmOWgn+eUkU4BirO+n500Hn9CUU=; h=Date:From:To:Cc:Subject:References:In-Reply-To:List-ID:From; b=GQC/sy4E+tZmUpHhcEm0+pL3903hPO8mV0gz7m+SHJhY8qAITdUbF3eGiri0kwZGA EyyezW/RgZZTI75RWuQMav5ChS43x5rSRw/5bh7eQXne8DSjFnpG+ywV3lFbaNJWFA 82hK4ubeo45xZ3UoaLOcpSxZgJdD6vaaV1i4ceA0= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726852AbfKNWmS (ORCPT ); Thu, 14 Nov 2019 17:42:18 -0500 Received: from mail-qk1-f181.google.com ([209.85.222.181]:35595 "EHLO mail-qk1-f181.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726319AbfKNWmS (ORCPT ); Thu, 14 Nov 2019 17:42:18 -0500 Received: by mail-qk1-f181.google.com with SMTP id i19so6544388qki.2; Thu, 14 Nov 2019 14:42:17 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=sender:date:from:to:cc:subject:message-id:references:mime-version :content-disposition:in-reply-to:user-agent; bh=ojnBoVhRYBbbCku6o5OhWdqFFJEnFiZ4I+6b/GkoBQg=; b=trF141knO9ioTtIa22bXyKIHKH4GLkubkdpaZr1p66/+mAnS94hwyTuqJPEpeDTdcK MRnCl8OXpIg1M8eDQmjQPZWi676P7i1N5qlBXHT96lVpD41/u6XK+f01o/wVTMYdghmM afyaTE0ClSOVWSwOfLOp/XKVxNs0m3hlegXjlIYwiKOrmRmudrMRcY5mjWvP32mSZxQF kRlRt+udROlAYRStA84rdML/0FveL4AzC/OvVehfYFSmUP6YUaD5H6gEDRxO0XZt4y1X tyRYUQjDBh4UErUv6KNQpQOu/xkl8aL+n5hsLT7cGwcWWUhxAZRdKspN5q12+EHTH04y 2W2Q== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:sender:date:from:to:cc:subject:message-id :references:mime-version:content-disposition:in-reply-to:user-agent; bh=ojnBoVhRYBbbCku6o5OhWdqFFJEnFiZ4I+6b/GkoBQg=; b=nq6SHPAQ/klByGa7vVUsPb7i6QRinl510t52Lo1NUlFgu1t07CA5Sx7koqEaeI+f9Q UoUqGbMmc3/CGUSZQRiD55W/8XqJEJ4/eJK1akaWVnPMyVe7E2BlwNyzkQL8wYWZWVjk +QB1WZ6KLH53zT1S+1lXSpwh8CmnnqvN2b5c4WVUkC6N3gcFZ6x35/ZFoYEDPEzYXHpz g/DN8qzOPf4J0+/qm+Cbzf/u74HZVVS2o+7XjlJEEgjbDR7MJ82Z9NdKW3YA8BkcFkWk L+/Z72Tedxn8h9LyLh6g/+5mGmJHYMS4HDOkuyWWQnL5BiW5ROXm3pqGVuXgSkIFHYOl ScRQ== X-Gm-Message-State: APjAAAW6+QffSFtAXhIWzdsEq2zoN2FRQ+0ieiH7yWzSnj5CQHY9rd3z Fz8NCzGUu7PnMAlx2r/IWXk= X-Google-Smtp-Source: APXvYqxhcsNRS8z1z19HuTak8nmGeut7qM5J5CXY7voNTNUlMc4zMnbbjvWNDPBjAd8TzvU4Rgq//Q== X-Received: by 2002:ae9:e814:: with SMTP id a20mr9392966qkg.117.1573771336538; Thu, 14 Nov 2019 14:42:16 -0800 (PST) Received: from localhost ([2620:10d:c091:500::2:69f2]) by smtp.gmail.com with ESMTPSA id l93sm3874982qtd.86.2019.11.14.14.42.15 (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Thu, 14 Nov 2019 14:42:15 -0800 (PST) Date: Thu, 14 Nov 2019 14:42:13 -0800 From: Tejun Heo To: Naresh Kamboju Cc: cgroups@vger.kernel.org, Linux-Next Mailing List , namhyung@kernel.org, open list , lkft-triage@lists.linaro.org, lizefan@huawei.com, hannes@cmpxchg.org, Alexei Starovoitov , Daniel Borkmann , kafai@fb.com, Song Liu Subject: Re: linux-next: arm32: beagleboard x15: WARNING: CPU: 0 PID: 0 at /usr/src/kernel/kernel/cgroup/cgroup.c:1969 cgroup_setup_root+0x36c/0x4e8 Message-ID: <20191114224213.GN4163745@devbig004.ftw2.facebook.com> References: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: User-Agent: Mutt/1.5.21 (2010-09-15) Sender: linux-next-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-next@vger.kernel.org Hello, Naresh. On Thu, Nov 14, 2019 at 11:02:53AM +0530, Naresh Kamboju wrote: > [ 0.015402] WARNING: CPU: 0 PID: 0 at /usr/src/kernel/kernel/cgroup/cgroup.c:1969 > cgroup_setup_root+0x36c/0x4e8 ... > [ 0.015726] [] (cgroup_setup_root) from [] > (cgroup_init+0x108/0x560) So, that's saying that the initial kernfs_node ino allocation returned something other than 1. Hmmm... x86_32 works fine. What does the following say? # mkdir -p /tmp/cgroup2 # mount -t cgroup2 none /tmp/cgroup2 # ls -lid /tmp/cgroup2 Thanks. -- tejun