Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1756582AbZJVPqn (ORCPT ); Thu, 22 Oct 2009 11:46:43 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1756526AbZJVPqm (ORCPT ); Thu, 22 Oct 2009 11:46:42 -0400 Received: from mga11.intel.com ([192.55.52.93]:50001 "EHLO mga11.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1756512AbZJVPql (ORCPT ); Thu, 22 Oct 2009 11:46:41 -0400 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="4.44,605,1249282800"; d="scan'208";a="506211989" Subject: Re: [PATCH 0/5] Candidate fix for increased number of GFP_ATOMIC failures V2 From: reinette chatre To: Mel Gorman Cc: Frans Pop , Jiri Kosina , Sven Geggus , Karol Lewandowski , Tobias Oetiker , "Rafael J. Wysocki" , David Miller , Kalle Valo , David Rientjes , KOSAKI Motohiro , "Abbas, Mohamed" , Jens Axboe , "John W. Linville" , Pekka Enberg , Bartlomiej Zolnierkiewicz , Greg Kroah-Hartman , Stephan von Krawczynski , Kernel Testers List , "netdev@vger.kernel.org" , "linux-kernel@vger.kernel.org" , "linux-mm@kvack.org\"" In-Reply-To: <1256221356-26049-1-git-send-email-mel@csn.ul.ie> References: <1256221356-26049-1-git-send-email-mel@csn.ul.ie> Content-Type: text/plain Date: Thu, 22 Oct 2009 08:43:38 -0700 Message-Id: <1256226219.21134.1493.camel@rc-desk> Mime-Version: 1.0 X-Mailer: Evolution 2.24.3 Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1009 Lines: 22 On Thu, 2009-10-22 at 07:22 -0700, Mel Gorman wrote: > [Bug #14141] order 2 page allocation failures in iwlagn > Commit 4752c93c30441f98f7ed723001b1a5e3e5619829 introduced GFP_ATOMIC > allocations within the wireless driver. This has caused large numbers > of failure reports to occur as reported by Frans Pop. Fixing this > requires changes to the driver if it wants to use GFP_ATOMIC which > is in the hands of Mohamed Abbas and Reinette Chatre. However, > it is very likely that it has being compounded by core mm changes > that this series is aimed at. Driver has been changed to allocate paged skb for its receive buffers. This reduces amount of memory needed from order-2 to order-1. This work is significant and will thus be in 2.6.33. Reinette -- 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/