Received: by 2002:ac0:a5a7:0:0:0:0:0 with SMTP id m36-v6csp1757920imm; Thu, 19 Jul 2018 07:25:52 -0700 (PDT) X-Google-Smtp-Source: AAOMgpc0el1gDspuwslgIR55WOmyDRM8QJfHCtAsZQoV0UIUoxd7HqrTlhQrLYifDX75mNXs/hJd X-Received: by 2002:a62:6a01:: with SMTP id f1-v6mr9849868pfc.156.1532010352186; Thu, 19 Jul 2018 07:25:52 -0700 (PDT) ARC-Seal: i=1; a=rsa-sha256; t=1532010352; cv=none; d=google.com; s=arc-20160816; b=iqNjgtYrol6w0ACaz2yc1G7ggkZbyfumMX5q0+j9Alc33RUS8iwhSxUbLH3BSQPJR2 lkLJ43sNJRdLdOp7idgsSIHXC46p8+6kRLku5TMHlAigag6bwouhB6MucH758PJMz62Q 4SuVK++jUajFcBKXyGGOU7JuHDqTmZ0+fHpM6QMeCuWUmTJMBSLqlF0Lx+Z7f+d0gU6Q IyJxvRIvxiW/jZcGFTIhW6PFCbzwcmzp/JbCEOotUh5oZJOqNoQqUQ8f4b4MCf0ft+6z OBOr3qsRASnH8y+g3y4l97g3f8i9CINDxYmTNl7DgGCWTehiRzzun2kTvu1XgZ3Wq9mF tPSA== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-id:precedence:sender:content-transfer-encoding :content-language:in-reply-to:mime-version:user-agent:date :message-id:references:cc:to:from:subject:arc-authentication-results; bh=AAbND6XwgzafC7vrafvFe+IRTgT4k/FmTj5K2Fd17jI=; b=yTngAYs/ziPTEay0bDzbeUIGKglCl7PaP2cd6KKjGng37B9jOGVi5og7lFzfe+RSxg YRYc7PY5JltR6T9OHzofp3lRbkkc8SFddvctx9VBQIY9+7Q4DvdUAc/rqrTMm9k3mD6q 2oZ7Rw/AoMV8iARK0KdDohJgFgSV5dasdRESV9E4UWVQFlcn1fcZW9LjXCyMRZpPD5bn XiczKMSxVdUkXEhS1TRPN9ZcDR0+HCAkbfaAcyerze9wxpaaleufkXVbRKyuXETleajh VVn5YbrPOHXxv4sDf613nt2Dz2IkP5ejkr06oVBXIs/qMtoX96kCGZxW4sZPwiFuS9CH YPZg== ARC-Authentication-Results: i=1; mx.google.com; spf=pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org Return-Path: Received: from vger.kernel.org (vger.kernel.org. [209.132.180.67]) by mx.google.com with ESMTP id e33-v6si5559563pld.231.2018.07.19.07.25.37; Thu, 19 Jul 2018 07:25:52 -0700 (PDT) Received-SPF: pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) client-ip=209.132.180.67; Authentication-Results: mx.google.com; spf=pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1731694AbeGSPHg (ORCPT + 99 others); Thu, 19 Jul 2018 11:07:36 -0400 Received: from www262.sakura.ne.jp ([202.181.97.72]:24850 "EHLO www262.sakura.ne.jp" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727367AbeGSPHg (ORCPT ); Thu, 19 Jul 2018 11:07:36 -0400 Received: from fsav305.sakura.ne.jp (fsav305.sakura.ne.jp [153.120.85.136]) by www262.sakura.ne.jp (8.15.2/8.15.2) with ESMTP id w6JENpeD029079; Thu, 19 Jul 2018 23:23:51 +0900 (JST) (envelope-from penguin-kernel@i-love.sakura.ne.jp) Received: from www262.sakura.ne.jp (202.181.97.72) by fsav305.sakura.ne.jp (F-Secure/fsigk_smtp/530/fsav305.sakura.ne.jp); Thu, 19 Jul 2018 23:23:51 +0900 (JST) X-Virus-Status: clean(F-Secure/fsigk_smtp/530/fsav305.sakura.ne.jp) Received: from [192.168.1.8] (softbank126074194044.bbtec.net [126.74.194.44]) (authenticated bits=0) by www262.sakura.ne.jp (8.15.2/8.15.2) with ESMTPSA id w6JENpBk029076 (version=TLSv1.2 cipher=DHE-RSA-AES256-SHA bits=256 verify=NO); Thu, 19 Jul 2018 23:23:51 +0900 (JST) (envelope-from penguin-kernel@i-love.sakura.ne.jp) Subject: Re: [patch v3] mm, oom: fix unnecessary killing of additional processes From: Tetsuo Handa To: David Rientjes Cc: Andrew Morton , kbuild test robot , Michal Hocko , linux-kernel@vger.kernel.org, linux-mm@kvack.org, Roman Gushchin References: Message-ID: <9eaea8ee-08e3-2188-a852-60bfaf3693e1@i-love.sakura.ne.jp> Date: Thu, 19 Jul 2018 23:23:51 +0900 User-Agent: Mozilla/5.0 (Windows NT 6.3; WOW64; rv:52.0) Gecko/20100101 Thunderbird/52.9.1 MIME-Version: 1.0 In-Reply-To: Content-Type: text/plain; charset=utf-8 Content-Language: en-US Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org David, Now that your patches are about to be dropped from linux-next.git , please try OOM lockup (CVE-2016-10723) mitigation patch ( https://marc.info/?l=linux-mm&m=153112243424285&w=4 ) and my cleanup patch ( [PATCH 1/2] at https://marc.info/?l=linux-mm&m=153119509215026&w=4 ) on top of linux.git . And please reply how was the result, for I'm currently asking Roman whether we can apply these patches before applying the cgroup-aware OOM killer.