From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1760375AbZIPXRw (ORCPT ); Wed, 16 Sep 2009 19:17:52 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1760293AbZIPXRu (ORCPT ); Wed, 16 Sep 2009 19:17:50 -0400 Received: from ogre.sisk.pl ([217.79.144.158]:38790 "EHLO ogre.sisk.pl" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1755456AbZIPXRu (ORCPT ); Wed, 16 Sep 2009 19:17:50 -0400 From: "Rafael J. Wysocki" To: Karol Lewandowski Subject: Re: [BUG 2.6.30+] e100 sometimes causes oops during resume Date: Thu, 17 Sep 2009 01:18:53 +0200 User-Agent: KMail/1.12.1 (Linux/2.6.31-rjw; KDE/4.3.1; x86_64; ; ) Cc: e1000-devel@lists.sourceforge.net, linux-kernel@vger.kernel.org, "Graham, David" References: <20090915120538.GA26806@bizet.domek.prywatny> In-Reply-To: <20090915120538.GA26806@bizet.domek.prywatny> MIME-Version: 1.0 Content-Type: Text/Plain; charset="iso-8859-1" Content-Transfer-Encoding: 7bit Message-Id: <200909170118.53965.rjw@sisk.pl> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Tuesday 15 September 2009, Karol Lewandowski wrote: > Hello, > > I'm getting following oops sometimes during resume on my Thinkpad T21 > (where "sometimes" means about 10/1 good/bad ratio): > > ifconfig: page allocation failure. order:5, mode:0x8020 Well, this only tells you that an attempt to make order 5 allocation failed, which is not unusual at all. Allocations of this order are quite likely to fail if memory is fragmented, the probability of which rises with the number of suspend-resume cycles already carried out. I guess the driver releases its DMA buffer during suspend and attempts to allocate it back on resume, which is not really smart (if that really is the case). Thanks, Rafael