From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752041AbaBLIoG (ORCPT ); Wed, 12 Feb 2014 03:44:06 -0500 Received: from mail-qc0-f180.google.com ([209.85.216.180]:43780 "EHLO mail-qc0-f180.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751460AbaBLIoD (ORCPT ); Wed, 12 Feb 2014 03:44:03 -0500 Date: Wed, 12 Feb 2014 03:35:59 -0500 From: Tejun Heo To: poma Cc: Linux Kernel list , Mailing-List fedora-kernel Subject: Re: WARNING: CPU: 2 PID: 4415 at lib/idr.c:527 idr_remove.part.6+0x243/0x250() Message-ID: <20140212083559.GE7984@mtj.dyndns.org> References: <52FB31D3.8030209@gmail.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <52FB31D3.8030209@gmail.com> User-Agent: Mutt/1.5.21 (2010-09-15) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Wed, Feb 12, 2014 at 09:33:23AM +0100, poma wrote: > > Ahoy! > > My trace is the last one, therefore per LIFO I am sending this report to > you. > > ------------[ cut here ]------------ > WARNING: CPU: 2 PID: 4415 at lib/idr.c:527 idr_remove.part.6+0x243/0x250() > idr_remove called for id=136 which is not allocated. > CPU: 2 PID: 4415 Comm: systemd Not tainted 3.12.10-300.fc20.x86_64 #1 > Call Trace: > [] dump_stack+0x45/0x56 > [] warn_slowpath_common+0x7d/0xa0 > [] warn_slowpath_fmt+0x4c/0x50 > [] idr_remove.part.6+0x243/0x250 > [] ? d_walk+0xdc/0x2a0 > [] idr_remove+0xd/0x10 > [] cgroup_destroy_css_killed+0x46/0x70 > [] cgroup_destroy_locked+0x2d8/0x310 > [] cgroup_rmdir+0x22/0x40 > [] vfs_rmdir+0xa8/0x100 > [] do_rmdir+0x17d/0x1d0 > [] ? task_work_run+0xac/0xe0 > [] ? do_notify_resume+0x61/0xa0 > [] SyS_rmdir+0x16/0x20 > [] system_call_fastpath+0x16/0x1b > ---[ end trace 4ebc2893b27b190d ]--- Sounds simliar to the issue fixed by the following patch. http://lkml.kernel.org/g/52F9D9DA.7040108@huawei.com Thanks. -- tejun