From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail138.messagelabs.com (mail138.messagelabs.com [216.82.249.35]) by kanga.kvack.org (Postfix) with SMTP id 05D206B006A for ; Wed, 7 Jul 2010 21:11:13 -0400 (EDT) Received: from m5.gw.fujitsu.co.jp ([10.0.50.75]) by fgwmail5.fujitsu.co.jp (Fujitsu Gateway) with ESMTP id o681BBIb007620 for (envelope-from kosaki.motohiro@jp.fujitsu.com); Thu, 8 Jul 2010 10:11:12 +0900 Received: from smail (m5 [127.0.0.1]) by outgoing.m5.gw.fujitsu.co.jp (Postfix) with ESMTP id 9849E45DE56 for ; Thu, 8 Jul 2010 10:11:11 +0900 (JST) Received: from s5.gw.fujitsu.co.jp (s5.gw.fujitsu.co.jp [10.0.50.95]) by m5.gw.fujitsu.co.jp (Postfix) with ESMTP id 7777145DE52 for ; Thu, 8 Jul 2010 10:11:11 +0900 (JST) Received: from s5.gw.fujitsu.co.jp (localhost.localdomain [127.0.0.1]) by s5.gw.fujitsu.co.jp (Postfix) with ESMTP id 4DA661DB8061 for ; Thu, 8 Jul 2010 10:11:11 +0900 (JST) Received: from ml14.s.css.fujitsu.com (ml14.s.css.fujitsu.com [10.249.87.104]) by s5.gw.fujitsu.co.jp (Postfix) with ESMTP id 035151DB805E for ; Thu, 8 Jul 2010 10:11:11 +0900 (JST) From: KOSAKI Motohiro Subject: Re: FYI: mmap_sem OOM patch In-Reply-To: <20100708084005.CD0F.A69D9226@jp.fujitsu.com> References: <20100707231134.GA26555@google.com> <20100708084005.CD0F.A69D9226@jp.fujitsu.com> Message-Id: <20100708100836.CD1A.A69D9226@jp.fujitsu.com> MIME-Version: 1.0 Content-Type: text/plain; charset="US-ASCII" Content-Transfer-Encoding: 7bit Date: Thu, 8 Jul 2010 10:11:10 +0900 (JST) Sender: owner-linux-mm@kvack.org To: KOSAKI Motohiro Cc: Michel Lespinasse , linux-mm , LKML , Divyesh Shah List-ID: > Yup. > If admins want to kill memory hogging process manually when the system > is under heavy swap thrashing, we will face the same problem, need > unfairness and fast exit. So, unfair exiting design looks very good. > > If you will updated the description, I'm glad :) I have one more topic. can we check fatal_signal_pending() instead TIF_MEMDIE? As I said, if the process received SIGKILL, do the fork/exec/brk/mmap starvations have any problem? Thanks. -- 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