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=-0.8 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS autolearn=no 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 4F59DC10F25 for ; Fri, 6 Mar 2020 17:18:22 +0000 (UTC) Received: from kanga.kvack.org (kanga.kvack.org [205.233.56.17]) by mail.kernel.org (Postfix) with ESMTP id 1AB082084E for ; Fri, 6 Mar 2020 17:18:22 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 1AB082084E Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=xmission.com Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=owner-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix) id C11E36B0003; Fri, 6 Mar 2020 12:18:21 -0500 (EST) Received: by kanga.kvack.org (Postfix, from userid 40) id BC2B26B0006; Fri, 6 Mar 2020 12:18:21 -0500 (EST) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id AB1C26B000A; Fri, 6 Mar 2020 12:18:21 -0500 (EST) X-Delivered-To: linux-mm@kvack.org Received: from forelay.hostedemail.com (smtprelay0008.hostedemail.com [216.40.44.8]) by kanga.kvack.org (Postfix) with ESMTP id 95EE26B0003 for ; Fri, 6 Mar 2020 12:18:21 -0500 (EST) Received: from smtpin06.hostedemail.com (10.5.19.251.rfc1918.com [10.5.19.251]) by forelay02.hostedemail.com (Postfix) with ESMTP id 51CC44DA1 for ; Fri, 6 Mar 2020 17:18:21 +0000 (UTC) X-FDA: 76565596002.06.mint42_ea8534fd764f X-HE-Tag: mint42_ea8534fd764f X-Filterd-Recvd-Size: 6430 Received: from out01.mta.xmission.com (out01.mta.xmission.com [166.70.13.231]) by imf29.hostedemail.com (Postfix) with ESMTP for ; Fri, 6 Mar 2020 17:18:20 +0000 (UTC) Received: from in02.mta.xmission.com ([166.70.13.52]) by out01.mta.xmission.com with esmtps (TLS1.2:ECDHE_RSA_AES_128_GCM_SHA256:128) (Exim 4.90_1) (envelope-from ) id 1jAGc4-0001Lk-Ci; Fri, 06 Mar 2020 10:18:16 -0700 Received: from ip68-227-160-95.om.om.cox.net ([68.227.160.95] helo=x220.xmission.com) by in02.mta.xmission.com with esmtpsa (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.87) (envelope-from ) id 1jAGc3-0002xI-5G; Fri, 06 Mar 2020 10:18:15 -0700 From: ebiederm@xmission.com (Eric W. Biederman) To: Bernd Edlinger Cc: Christian Brauner , Kees Cook , Jann Horn , Jonathan Corbet , Alexander Viro , Andrew Morton , Alexey Dobriyan , Thomas Gleixner , Oleg Nesterov , Frederic Weisbecker , Andrei Vagin , Ingo Molnar , "Peter Zijlstra \(Intel\)" , Yuyang Du , David Hildenbrand , Sebastian Andrzej Siewior , Anshuman Khandual , David Howells , James Morris , Greg Kroah-Hartman , Shakeel Butt , Jason Gunthorpe , Christian Kellner , Andrea Arcangeli , Aleksa Sarai , "Dmitry V. Levin" , "linux-doc\@vger.kernel.org" , "linux-kernel\@vger.kernel.org" , "linux-fsdevel\@vger.kernel.org" , "linux-mm\@kvack.org" , "stable\@vger.kernel.org" , "linux-api\@vger.kernel.org" References: <202003021531.C77EF10@keescook> <20200303085802.eqn6jbhwxtmz4j2x@wittgenstein> <87v9nlii0b.fsf@x220.int.ebiederm.org> <87a74xi4kz.fsf@x220.int.ebiederm.org> <87r1y8dqqz.fsf@x220.int.ebiederm.org> <87tv32cxmf.fsf_-_@x220.int.ebiederm.org> <87o8tacxl3.fsf_-_@x220.int.ebiederm.org> <87pndqax3j.fsf@x220.int.ebiederm.org> Date: Fri, 06 Mar 2020 11:16:00 -0600 In-Reply-To: (Bernd Edlinger's message of "Fri, 6 Mar 2020 16:26:34 +0000") Message-ID: <87v9nh9zfz.fsf@x220.int.ebiederm.org> User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/26.1 (gnu/linux) MIME-Version: 1.0 Content-Type: text/plain X-XM-SPF: eid=1jAGc3-0002xI-5G;;;mid=<87v9nh9zfz.fsf@x220.int.ebiederm.org>;;;hst=in02.mta.xmission.com;;;ip=68.227.160.95;;;frm=ebiederm@xmission.com;;;spf=neutral X-XM-AID: U2FsdGVkX19gmt4QeYoR+3AHca+FGN8CxL45iobMdDI= X-SA-Exim-Connect-IP: 68.227.160.95 X-SA-Exim-Mail-From: ebiederm@xmission.com Subject: Re: [PATCH 1/2] exec: Properly mark the point of no return 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) X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: Bernd Edlinger writes: > On 3/6/20 6:09 AM, Eric W. Biederman wrote: >> Bernd Edlinger writes: >> >>> On 3/5/20 10:15 PM, Eric W. Biederman wrote: >>>> >>>> Add a flag binfmt->unrecoverable to mark when execution has gotten to >>>> the point where it is impossible to return to userspace with the >>>> calling process unchanged. >>>> >>>> While techinically this state starts as soon as de_thread starts > > typo: s/techinically/technically/ >>>> killing threads, the only return path at that point is if there is a >>>> fatal signal pending. I have choosen instead to set unrecoverable > > I'm not good at english, is this chosen ? > Yes. Defintley worth fixing. Eric