From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S932781Ab1ESOvv (ORCPT ); Thu, 19 May 2011 10:51:51 -0400 Received: from mga01.intel.com ([192.55.52.88]:8457 "EHLO mga01.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752505Ab1ESOvu (ORCPT ); Thu, 19 May 2011 10:51:50 -0400 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="4.65,237,1304319600"; d="scan'208";a="4014891" Date: Thu, 19 May 2011 22:51:47 +0800 From: Wu Fengguang To: Minchan Kim Cc: Andrew Lutomirski , Andi Kleen , "linux-mm@kvack.org" , LKML , KOSAKI Motohiro , KAMEZAWA Hiroyuki , Mel Gorman , Johannes Weiner , Rik van Riel Subject: Re: Kernel falls apart under light memory pressure (i.e. linking vmlinux) Message-ID: <20110519145147.GA14658@localhost> References: <20110514165346.GV6008@one.firstfloor.org> <20110514174333.GW6008@one.firstfloor.org> <20110515152747.GA25905@localhost> <20110517060001.GC24069@localhost> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: User-Agent: Mutt/1.5.20 (2009-06-14) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org > > I had 6GB swap available, so there shouldn't have > > been any OOM. > > Yes. It's strange but we have seen such case several times, AFAIR. I noticed that the test script mounted a "ramfs" not "tmpfs", hence the 1.4G pages won't be swapped? Thanks, Fengguang From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail137.messagelabs.com (mail137.messagelabs.com [216.82.249.19]) by kanga.kvack.org (Postfix) with SMTP id D99EC6B0011 for ; Thu, 19 May 2011 10:51:51 -0400 (EDT) Date: Thu, 19 May 2011 22:51:47 +0800 From: Wu Fengguang Subject: Re: Kernel falls apart under light memory pressure (i.e. linking vmlinux) Message-ID: <20110519145147.GA14658@localhost> References: <20110514165346.GV6008@one.firstfloor.org> <20110514174333.GW6008@one.firstfloor.org> <20110515152747.GA25905@localhost> <20110517060001.GC24069@localhost> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: Sender: owner-linux-mm@kvack.org List-ID: To: Minchan Kim Cc: Andrew Lutomirski , Andi Kleen , "linux-mm@kvack.org" , LKML , KOSAKI Motohiro , KAMEZAWA Hiroyuki , Mel Gorman , Johannes Weiner , Rik van Riel > > I had 6GB swap available, so there shouldn't have > > been any OOM. > > Yes. It's strange but we have seen such case several times, AFAIR. I noticed that the test script mounted a "ramfs" not "tmpfs", hence the 1.4G pages won't be swapped? Thanks, Fengguang -- 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 internet charges in Canada: sign http://stopthemeter.ca/ Don't email: email@kvack.org