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=-2.5 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,SPF_PASS,USER_AGENT_MUTT autolearn=ham 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 9DD14C43381 for ; Fri, 15 Mar 2019 11:34:59 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 71745218B0 for ; Fri, 15 Mar 2019 11:34:59 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727859AbfCOLe6 (ORCPT ); Fri, 15 Mar 2019 07:34:58 -0400 Received: from zeniv.linux.org.uk ([195.92.253.2]:59768 "EHLO ZenIV.linux.org.uk" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727115AbfCOLe5 (ORCPT ); Fri, 15 Mar 2019 07:34:57 -0400 Received: from viro by ZenIV.linux.org.uk with local (Exim 4.92 #3 (Red Hat Linux)) id 1h4l6t-0006nU-Pu; Fri, 15 Mar 2019 11:34:47 +0000 Date: Fri, 15 Mar 2019 11:34:47 +0000 From: Al Viro To: Dominik Brodowski Cc: David Howells , Greg Kroah-Hartman , Tejun Heo , Li Zefan , Johannes Weiner , cgroups@vger.kernel.org, fenghua.yu@intel.com, linux-kernel@vger.kernel.org Subject: Re: fs_context-related oops in mainline Message-ID: <20190315113447.GX2217@ZenIV.linux.org.uk> References: <20190315074307.GA31430@light.dominikbrodowski.net> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20190315074307.GA31430@light.dominikbrodowski.net> User-Agent: Mutt/1.10.1 (2018-07-13) Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Fri, Mar 15, 2019 at 08:43:07AM +0100, Dominik Brodowski wrote: > David, Al, > > commit 23bf1b6be9c2 ("kernfs, sysfs, cgroup, intel_rdt: Support fs_context") > seems to have introduced a bug; at least that's the commit I bisected the > following oops down to: > This occurs while trying to mount sysfs in initramfs > > mount -n -t sysfs sysfs /sys > > All this obviously runs in qemu; config and further information are available upon request. .config, please?