Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1756597Ab1FFMke (ORCPT ); Mon, 6 Jun 2011 08:40:34 -0400 Received: from mx1.redhat.com ([209.132.183.28]:40387 "EHLO mx1.redhat.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1756048Ab1FFMkd (ORCPT ); Mon, 6 Jun 2011 08:40:33 -0400 Date: Mon, 6 Jun 2011 14:40:25 +0200 From: Andrea Arcangeli To: Mel Gorman Cc: Minchan Kim , akpm@linux-foundation.org, Ury Stankevich , KOSAKI Motohiro , linux-kernel@vger.kernel.org, linux-mm@kvack.org, stable@kernel.org Subject: Re: [PATCH] mm: compaction: Abort compaction if too many pages are isolated and caller is asynchronous Message-ID: <20110606124025.GB12887@random.random> References: <20110601214018.GC7306@suse.de> <20110601233036.GZ19505@random.random> <20110602010352.GD7306@suse.de> <20110602132954.GC19505@random.random> <20110602145019.GG7306@suse.de> <20110602153754.GF19505@random.random> <20110603020920.GA26753@suse.de> <20110603144941.GI7306@suse.de> <20110604065853.GA4114@barrios-laptop> <20110606104345.GE5247@suse.de> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20110606104345.GE5247@suse.de> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 614 Lines: 12 On Mon, Jun 06, 2011 at 11:43:45AM +0100, Mel Gorman wrote: > Maybe not full, but it has more PageReserved pages than anywhere else > and few MIGRATE_MOVABLE blocks. MIGRATE_MOVABLE gets skipped during > async compaction we could easily reach the end of the DMA zone quickly. Debug data has nr_isolated_file in dma zone 1 and nr_isolated_file in normal zone being -1. -- 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/