From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail190.messagelabs.com (mail190.messagelabs.com [216.82.249.51]) by kanga.kvack.org (Postfix) with SMTP id A17E1900001 for ; Tue, 26 Apr 2011 01:55:24 -0400 (EDT) Date: Tue, 26 Apr 2011 13:55:21 +0800 From: Wu Fengguang Subject: Re: readahead and oom Message-ID: <20110426055521.GA18473@localhost> References: MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Disposition: inline Content-Transfer-Encoding: 8bit In-Reply-To: Sender: owner-linux-mm@kvack.org List-ID: To: Dave Young Cc: linux-mm , Linux Kernel Mailing List On Tue, Apr 26, 2011 at 01:49:25PM +0800, Dave Young wrote: > Hi, > > When memory pressure is high, readahead could cause oom killing. > IMHO we should stop readaheading under such circumstancesa??If it's true > how to fix it? Good question. Before OOM there will be readahead thrashings, which can be addressed by this patch: http://lkml.org/lkml/2010/2/2/229 However there seems no much interest on that feature.. I can separate that out and resubmit it standalone if necessary. 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