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 B6D1E6B0087 for ; Tue, 4 Jan 2011 03:34:45 -0500 (EST) Received: from m4.gw.fujitsu.co.jp (unknown [10.0.50.74]) by fgwmail7.fujitsu.co.jp (Postfix) with ESMTP id 766A63EE0B3 for ; Tue, 4 Jan 2011 17:34:33 +0900 (JST) Received: from smail (m4 [127.0.0.1]) by outgoing.m4.gw.fujitsu.co.jp (Postfix) with ESMTP id 584DA45DE51 for ; Tue, 4 Jan 2011 17:34:33 +0900 (JST) Received: from s4.gw.fujitsu.co.jp (s4.gw.fujitsu.co.jp [10.0.50.94]) by m4.gw.fujitsu.co.jp (Postfix) with ESMTP id 2894145DE53 for ; Tue, 4 Jan 2011 17:34:33 +0900 (JST) Received: from s4.gw.fujitsu.co.jp (localhost.localdomain [127.0.0.1]) by s4.gw.fujitsu.co.jp (Postfix) with ESMTP id 16E371DB803A for ; Tue, 4 Jan 2011 17:34:33 +0900 (JST) Received: from m105.s.css.fujitsu.com (m105.s.css.fujitsu.com [10.249.87.105]) by s4.gw.fujitsu.co.jp (Postfix) with ESMTP id D23E6EF8003 for ; Tue, 4 Jan 2011 17:34:32 +0900 (JST) Date: Tue, 4 Jan 2011 17:28:33 +0900 From: KAMEZAWA Hiroyuki Subject: Re: [PATCH v3]mm/oom-kill: direct hardware access processes should get bonus Message-Id: <20110104172833.1ff20b41.kamezawa.hiroyu@jp.fujitsu.com> In-Reply-To: <4D22D190.1080706@leadcoretech.com> References: <1288662213.10103.2.camel@localhost.localdomain> <1289305468.10699.2.camel@localhost.localdomain> <1289402093.10699.25.camel@localhost.localdomain> <1289402666.10699.28.camel@localhost.localdomain> <4D22D190.1080706@leadcoretech.com> Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Sender: owner-linux-mm@kvack.org To: "Figo.zhang" Cc: lkml , KOSAKI Motohiro , "linux-mm@kvack.org" , Andrew Morton , Linus Torvalds , "Figo.zhang" , "rientjes@google.com" , Wu Fengguang List-ID: On Tue, 04 Jan 2011 15:51:44 +0800 "Figo.zhang" wrote: > > i had send the patch to protect the hardware access processes for > oom-killer before, but rientjes have not agree with me. > > but today i catch log from my desktop. oom-killer have kill my "minicom" > and "Xorg". so i think it should add protection about it. > Off topic. In this log, I found > > Jan 4 15:22:55 figo-desktop kernel: Free swap = -1636kB > > Jan 4 15:22:55 figo-desktop kernel: Total swap = 0kB > > Jan 4 15:22:55 figo-desktop kernel: 515070 pages RAM ... This means total_swap_pages = 0 while pages are read-in at swapoff. Let's see 'points' for oom == points = (get_mm_rss(p->mm) + get_mm_counter(p->mm, MM_SWAPENTS)) * 1000 / totalpages; == Here, totalpages = total_ram + total_swap but totalswap is 0 here. So, points can be > 1000, easily. (This seems not to be related to the Xorg's death itself) Thanks, -Kame -- 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/ . Fight unfair telecom policy in Canada: sign http://dissolvethecrtc.ca/ Don't email: email@kvack.org