Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754669AbbLINW6 (ORCPT ); Wed, 9 Dec 2015 08:22:58 -0500 Received: from mail-wm0-f43.google.com ([74.125.82.43]:33063 "EHLO mail-wm0-f43.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754622AbbLINWz (ORCPT ); Wed, 9 Dec 2015 08:22:55 -0500 Date: Wed, 9 Dec 2015 14:22:53 +0100 From: Michal Hocko To: Norbert Preining Cc: linux-kernel@vger.kernel.org, Tejun Heo , cgroups mailinglist Subject: Re: occasional kernel hang on shutdown - kernel/cgroup_pids.c Message-ID: <20151209132253.GB30912@dhcp22.suse.cz> References: <20151207235352.GW15569@logic.at> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20151207235352.GW15569@logic.at> User-Agent: Mutt/1.5.24 (2015-08-30) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1717 Lines: 51 [CCing Tejun] Seems to be the same issue as reported here? http://lkml.kernel.org/r/20151208145851.GJ9837@bark On Tue 08-12-15 08:53:52, Norbert Preining wrote: > Dear all > > (please Cc) > > running 4.4-rc4 (written as rc3+ but only the tag commit is missing), > but I think also earlier in the rc releases, I occasionally see hangs > on shutdown. Nothing works anymore, but this time at least there > was some output on the console. > > Manually copied from screen: > > WARNING: CPU: 1 PID: 14 at kernel/cgroup_pids.c:97 pids_cancel.constrprop.8+0x2a > Modules linked in: .... > ... > CPU: 1 PID: 14 Comm: ksoftirqd/1 Tainted: G O 4.4.0-rc3+ > Hardware name: Sony Corporation SVP1322A1J/VAIO, BIOS R2092V7 04/24/2015 > ... > > Does that help in any way? > > All the best > > Norbert > > (please Cc) > > ------------------------------------------------------------------------ > PREINING, Norbert http://www.preining.info > JAIST, Japan TeX Live & Debian Developer > GPG: 0x860CDC13 fp: F7D8 A928 26E3 16A1 9FA0 ACF0 6CAC A448 860C DC13 > ------------------------------------------------------------------------ > -- > To unsubscribe from this list: send the line "unsubscribe linux-kernel" in > the body of a message to majordomo@vger.kernel.org > More majordomo info at http://vger.kernel.org/majordomo-info.html > Please read the FAQ at http://www.tux.org/lkml/ -- Michal Hocko SUSE Labs -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/