Return-path: Received: from magic.merlins.org ([209.81.13.136]:56881 "EHLO mail1.merlins.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752808Ab2DISge (ORCPT ); Mon, 9 Apr 2012 14:36:34 -0400 Date: Mon, 9 Apr 2012 11:36:32 -0700 From: Marc MERLIN To: David Miller Cc: bhutchings@solarflare.com, linux-wireless@vger.kernel.org, netdev@vger.kernel.org Subject: Re: 3.2.8/amd64 full interrupt hangs and deadlocks under big network copies (page allocation failure) Message-ID: <20120409183632.GO29342@merlins.org> (sfid-20120409_203643_501996_1CB58FE5) References: <20120329163800.GH24933@merlins.org> <1333044575.2656.1.camel@bwh-desktop.uk.solarflarecom.com> <20120409172051.GR32290@merlins.org> <20120409.141241.1216091936509309354.davem@davemloft.net> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii In-Reply-To: <20120409.141241.1216091936509309354.davem@davemloft.net> Sender: linux-wireless-owner@vger.kernel.org List-ID: On Mon, Apr 09, 2012 at 02:12:41PM -0400, David Miller wrote: > From: Marc MERLIN > Date: Mon, 9 Apr 2012 10:20:51 -0700 > > > Any idea what's going on, what bucket of RAM is an issue for the driver > > (total RAM is more than plenty), and where I should go from there? > > The wireless layer is allocating high-order pages, so it's > not the amount of ram, it's the fragmentation of it leading > to a lack of those high-order pages. I figured it was something of the sort, thanks for the professional confirmation :) What's my next step, file a bug with a specific team? Thanks, Marc -- "A mouse is a device used to point at the xterm you want to type in" - A.S.R. Microsoft is to operating systems .... .... what McDonalds is to gourmet cooking Home page: http://marc.merlins.org/