From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail143.messagelabs.com (mail143.messagelabs.com [216.82.254.35]) by kanga.kvack.org (Postfix) with SMTP id BA7D06B005A for ; Tue, 23 Jun 2009 22:42:05 -0400 (EDT) Received: from m5.gw.fujitsu.co.jp ([10.0.50.75]) by fgwmail5.fujitsu.co.jp (Fujitsu Gateway) with ESMTP id n5O2hNig019961 for (envelope-from kosaki.motohiro@jp.fujitsu.com); Wed, 24 Jun 2009 11:43:23 +0900 Received: from smail (m5 [127.0.0.1]) by outgoing.m5.gw.fujitsu.co.jp (Postfix) with ESMTP id 125BE45DE55 for ; Wed, 24 Jun 2009 11:43:23 +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 E59D045DE52 for ; Wed, 24 Jun 2009 11:43:22 +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 C5D5D1DB8038 for ; Wed, 24 Jun 2009 11:43:22 +0900 (JST) Received: from m105.s.css.fujitsu.com (m105.s.css.fujitsu.com [10.249.87.105]) by s5.gw.fujitsu.co.jp (Postfix) with ESMTP id 799141DB8043 for ; Wed, 24 Jun 2009 11:43:22 +0900 (JST) From: KOSAKI Motohiro Subject: Re: [PATCH 0/3] make mapped executable pages the first class citizen In-Reply-To: <20090624023251.GA16483@localhost> References: <7561.1245768237@redhat.com> <20090624023251.GA16483@localhost> Message-Id: <20090624114055.225D.A69D9226@jp.fujitsu.com> MIME-Version: 1.0 Content-Type: text/plain; charset="US-ASCII" Content-Transfer-Encoding: 7bit Date: Wed, 24 Jun 2009 11:43:21 +0900 (JST) Sender: owner-linux-mm@kvack.org To: Wu Fengguang Cc: kosaki.motohiro@jp.fujitsu.com, David Howells , Andrew Morton , LKML , Christoph Lameter , "hannes@cmpxchg.org" , "peterz@infradead.org" , "riel@redhat.com" , "tytso@mit.edu" , "linux-mm@kvack.org" , "elladan@eskimo.com" , "npiggin@suse.de" , "minchan.kim@gmail.com" List-ID: > On Tue, Jun 23, 2009 at 10:43:57PM +0800, David Howells wrote: > > Wu Fengguang wrote: > > > > > David, could you try running this when it occurred again? > > > > > > make Documentation/vm/page-types > > > Documentation/vm/page-types --raw # run as root > > > > Okay. I managed to catch it between the first and second OOMs, and ran the > > command you asked for. > > Thank you! > > > 0x0000000000000000 142261 555 ________________________________ > > 0x0000000000000400 6797 26 __________B_____________________ buddy > > The buddy+free numbers are pretty high. 26MB PG_buddy pages means much > more actual free pages. So I bet the 555MB no-flag pages are mostly free pages. You mean our VM can make OOM although it have 600MB free pages? -- 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