From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-oi0-f52.google.com (mail-oi0-f52.google.com [209.85.218.52]) by kanga.kvack.org (Postfix) with ESMTP id 811624403D8 for ; Thu, 4 Feb 2016 08:11:19 -0500 (EST) Received: by mail-oi0-f52.google.com with SMTP id x21so14755461oix.3 for ; Thu, 04 Feb 2016 05:11:19 -0800 (PST) Received: from www262.sakura.ne.jp (www262.sakura.ne.jp. [2001:e42:101:1:202:181:97:72]) by mx.google.com with ESMTPS id k9si3254494oif.143.2016.02.04.05.11.18 for (version=TLS1 cipher=AES128-SHA bits=128/128); Thu, 04 Feb 2016 05:11:18 -0800 (PST) Subject: Re: [PATCH 0/3] OOM detection rework v4 From: Tetsuo Handa References: <1450203586-10959-1-git-send-email-mhocko@kernel.org> <20160203132718.GI6757@dhcp22.suse.cz> <20160204125700.GA14425@dhcp22.suse.cz> In-Reply-To: <20160204125700.GA14425@dhcp22.suse.cz> Message-Id: <201602042210.BCG18704.HOMFFJOStQFOLV@I-love.SAKURA.ne.jp> Date: Thu, 4 Feb 2016 22:10:54 +0900 Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Sender: owner-linux-mm@kvack.org List-ID: To: mhocko@kernel.org, rientjes@google.com Cc: akpm@linux-foundation.org, torvalds@linux-foundation.org, hannes@cmpxchg.org, mgorman@suse.de, hillf.zj@alibaba-inc.com, kamezawa.hiroyu@jp.fujitsu.com, linux-mm@kvack.org, linux-kernel@vger.kernel.org Michal Hocko wrote: > I am not sure we can fix these pathological loads where we hit the > higher order depletion and there is a chance that one of the thousands > tasks terminates in an unpredictable way which happens to race with the > OOM killer. When I hit this problem on Dec 24th, I didn't run thousands of tasks. I think there were less than one hundred tasks in the system and only a few tasks were running. Not a pathological load at all. I'm running thousands of tasks only for increasing the possibility in the reproducer. -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@kvack.org. For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: email@kvack.org