Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753824AbdCHXgC (ORCPT ); Wed, 8 Mar 2017 18:36:02 -0500 Received: from out03.mta.xmission.com ([166.70.13.233]:50646 "EHLO out03.mta.xmission.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751691AbdCHXgA (ORCPT ); Wed, 8 Mar 2017 18:36:00 -0500 From: ebiederm@xmission.com (Eric W. Biederman) To: Luis Henriques Cc: Tejun Heo , Zefan Li , Johannes Weiner , Andrew Morton , linux-kernel@vger.kernel.org References: <20170308184616.553hndqxd7lljqkq@charon> Date: Wed, 08 Mar 2017 17:30:29 -0600 In-Reply-To: <20170308184616.553hndqxd7lljqkq@charon> (Luis Henriques's message of "Wed, 8 Mar 2017 18:46:16 +0000") Message-ID: <878tofl52i.fsf@xmission.com> User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/25.1 (gnu/linux) MIME-Version: 1.0 Content-Type: text/plain X-XM-SPF: eid=1cll6z-0005Mm-MB;;;mid=<878tofl52i.fsf@xmission.com>;;;hst=in02.mta.xmission.com;;;ip=67.3.234.240;;;frm=ebiederm@xmission.com;;;spf=neutral X-XM-AID: U2FsdGVkX1/t2Emj9kqj+7rbpk2LO8L4WGRIXMq+Bo8= X-SA-Exim-Connect-IP: 67.3.234.240 X-SA-Exim-Mail-From: ebiederm@xmission.com X-Spam-Report: * -1.0 ALL_TRUSTED Passed through trusted hosts only via SMTP * 0.0 TVD_RCVD_IP Message was received from an IP address * 0.0 T_TM2_M_HEADER_IN_MSG BODY: No description available. * -0.0 BAYES_40 BODY: Bayes spam probability is 20 to 40% * [score: 0.3975] * -0.0 DCC_CHECK_NEGATIVE Not listed in DCC * [sa02 1397; Body=1 Fuz1=1 Fuz2=1] * 1.0 T_XMDrugObfuBody_12 obfuscated drug references X-Spam-DCC: XMission; sa02 1397; Body=1 Fuz1=1 Fuz2=1 X-Spam-Combo: ;Luis Henriques X-Spam-Relay-Country: X-Spam-Timing: total 5334 ms - load_scoreonly_sql: 0.10 (0.0%), signal_user_changed: 3.7 (0.1%), b_tie_ro: 2.3 (0.0%), parse: 1.25 (0.0%), extract_message_metadata: 30 (0.6%), get_uri_detail_list: 1.35 (0.0%), tests_pri_-1000: 11 (0.2%), tests_pri_-950: 2.3 (0.0%), tests_pri_-900: 1.78 (0.0%), tests_pri_-400: 22 (0.4%), check_bayes: 20 (0.4%), b_tokenize: 7 (0.1%), b_tok_get_all: 4.9 (0.1%), b_comp_prob: 3.0 (0.1%), b_tok_touch_all: 2.2 (0.0%), b_finish: 0.85 (0.0%), tests_pri_0: 300 (5.6%), check_dkim_signature: 2.1 (0.0%), check_dkim_adsp: 7 (0.1%), tests_pri_500: 4954 (92.9%), poll_dns_idle: 4937 (92.6%), rewrite_mail: 0.00 (0.0%) Subject: Re: NULL pointer dereference in cgroup X-Spam-Flag: No X-SA-Exim-Version: 4.2.1 (built Thu, 05 May 2016 13:38:54 -0600) X-SA-Exim-Scanned: Yes (on in02.mta.xmission.com) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 409 Lines: 16 Luis Henriques writes: > Hi, > > I've seen this only once, and can't reproduce it. But here it is anyway: > > https://postimg.org/image/pn94k1yov > > (Not sure png files are accepted on LKML.) > > This occurred in a VM while booting 4.11.0-rc1 Any idea what was happening when you triggered this? A little context usually helps quite a bit when tracking things like this down. Eric