Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S263733AbUFXBwv (ORCPT ); Wed, 23 Jun 2004 21:52:51 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S263731AbUFXBwv (ORCPT ); Wed, 23 Jun 2004 21:52:51 -0400 Received: from holomorphy.com ([207.189.100.168]:55174 "EHLO holomorphy.com") by vger.kernel.org with ESMTP id S263733AbUFXBwb (ORCPT ); Wed, 23 Jun 2004 21:52:31 -0400 Date: Wed, 23 Jun 2004 18:52:29 -0700 From: William Lee Irwin III To: Andrew Morton , linux-kernel@vger.kernel.org Subject: Re: [oom]: [0/4] fix OOM deadlock running OAST Message-ID: <20040624015229.GP1552@holomorphy.com> Mail-Followup-To: William Lee Irwin III , Andrew Morton , linux-kernel@vger.kernel.org References: <20040623223146.GG1552@holomorphy.com> <20040623153758.40e3a865.akpm@osdl.org> <20040623230730.GJ1552@holomorphy.com> <20040623163819.013c8585.akpm@osdl.org> <20040624000308.GK1552@holomorphy.com> <20040623171818.39b73d52.akpm@osdl.org> <20040624002651.GL1552@holomorphy.com> <20040624003249.GM1552@holomorphy.com> <20040623180722.69a8ea6f.akpm@osdl.org> <20040624012435.GN1552@holomorphy.com> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20040624012435.GN1552@holomorphy.com> User-Agent: Mutt/1.5.5.1+cvs20040105i Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1302 Lines: 27 On Wed, Jun 23, 2004 at 06:07:22PM -0700, Andrew Morton wrote: >> Well none, really. This problem is now fixed, is it not? >> It would be nice to fix up the unrelated issue of putting unbacked pages >> onto the LRU. Could do that by adding backing_dev_info.not_on_lru, check >> that in the various places where we add pages to the LRU. >> Or, conceivably, do it lazily: take these pages off the LRU if we encounter >> them in page reclaim. This might be a net win - do extra work for the rare >> case, less work for the common case. >> Something like this: On Wed, Jun 23, 2004 at 06:24:35PM -0700, William Lee Irwin III wrote: > To me, this resembles reworking the LRU removal bits. I'll flesh out > the example you posted in the way you've suggested (via backing_dev_info). > Thanks. Also, you mentioned at one point extending committed memory accounting to account for unreclaimable pages (the term you suggested). Would you also like that to be looked into? It might take longer than overnight to brew up, mostly due to testing turnaround. -- wli - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/