From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S934570AbdBWBfM (ORCPT ); Wed, 22 Feb 2017 20:35:12 -0500 Received: from out01.mta.xmission.com ([166.70.13.231]:50814 "EHLO out01.mta.xmission.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S933112AbdBWBfG (ORCPT ); Wed, 22 Feb 2017 20:35:06 -0500 From: ebiederm@xmission.com (Eric W. Biederman) To: Aleksa Sarai Cc: Linus Torvalds , linux-fsdevel@vger.kernel.org, linux-api@vger.kernel.org, Linux Containers , linux-kernel@vger.kernel.org References: <8760k29cku.fsf@xmission.com> <84361910-ba16-79ff-09cd-c76b3f66cc85@suse.de> Date: Thu, 23 Feb 2017 14:29:45 +1300 In-Reply-To: <84361910-ba16-79ff-09cd-c76b3f66cc85@suse.de> (Aleksa Sarai's message of "Thu, 23 Feb 2017 08:15:46 +1100") Message-ID: <8737f54rue.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=1cgiIZ-0003oj-Aa;;;mid=<8737f54rue.fsf@xmission.com>;;;hst=in02.mta.xmission.com;;;ip=101.100.131.232;;;frm=ebiederm@xmission.com;;;spf=neutral X-XM-AID: U2FsdGVkX18vPV3hy/8un3cMX4elt2lUOIqizBLyV8o= X-SA-Exim-Connect-IP: 101.100.131.232 X-SA-Exim-Mail-From: ebiederm@xmission.com X-Spam-Report: * -1.0 ALL_TRUSTED Passed through trusted hosts only via SMTP * 0.0 T_TM2_M_HEADER_IN_MSG BODY: No description available. * 0.8 BAYES_50 BODY: Bayes spam probability is 40 to 60% * [score: 0.4911] * -0.0 DCC_CHECK_NEGATIVE Not listed in DCC * [sa07 1397; Body=1 Fuz1=1 Fuz2=1] * 1.2 XMSubMetaSxObfu_03 Obfuscated Sexy Noun-People * 0.0 T_TooManySym_01 4+ unique symbols in subject * 1.0 XMSubMetaSx_00 1+ Sexy Words X-Spam-DCC: XMission; sa07 1397; Body=1 Fuz1=1 Fuz2=1 X-Spam-Combo: **;Aleksa Sarai X-Spam-Relay-Country: X-Spam-Timing: total 5303 ms - load_scoreonly_sql: 0.04 (0.0%), signal_user_changed: 3.0 (0.1%), b_tie_ro: 2.2 (0.0%), parse: 1.04 (0.0%), extract_message_metadata: 13 (0.2%), get_uri_detail_list: 0.85 (0.0%), tests_pri_-1000: 6 (0.1%), tests_pri_-950: 1.15 (0.0%), tests_pri_-900: 0.97 (0.0%), tests_pri_-400: 18 (0.3%), check_bayes: 17 (0.3%), b_tokenize: 4.1 (0.1%), b_tok_get_all: 6 (0.1%), b_comp_prob: 1.42 (0.0%), b_tok_touch_all: 3.8 (0.1%), b_finish: 0.67 (0.0%), tests_pri_0: 139 (2.6%), check_dkim_signature: 0.69 (0.0%), check_dkim_adsp: 3.2 (0.1%), tests_pri_500: 5119 (96.5%), poll_dns_idle: 5112 (96.4%), rewrite_mail: 0.00 (0.0%) Subject: Re: [GIT PULL] namespaces related fixes for v4.11-rc1 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 Aleksa Sarai writes: >> The only known user of this prctl systemd >> forks all children after the prctl. So no userspace regressions will >> occur. > > Note that runC and containerd (and thus Docker) as well as cri-o use the prctl > as well -- to be able to collect exit codes from a non-child process (namely to > collect the exit code from PID 1 in the container). Are any of those affected by the change? I would not expect so. As it would require having children or grand children whose exit codes you don't want to collect. Eric