Return-path: Received: from yw-out-2324.google.com ([74.125.46.28]:12521 "EHLO yw-out-2324.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753550AbYFLQiN (ORCPT ); Thu, 12 Jun 2008 12:38:13 -0400 Received: by yw-out-2324.google.com with SMTP id 9so2257941ywe.1 for ; Thu, 12 Jun 2008 09:38:06 -0700 (PDT) Message-ID: <1ba2fa240806120938i248d38bek2a9155defff9428f@mail.gmail.com> (sfid-20080612_183817_848348_749E3178) Date: Thu, 12 Jun 2008 19:38:05 +0300 From: "Tomas Winkler" To: "Zdenek Kabelac" Subject: Re: Problem: Out of memory after 2days with 2GB RAM Cc: "Johannes Berg" , "Rik van Riel" , "Linux Kernel Mailing List" , yi.zhu@intel.com, reinette.chatre@intel.com, linux-wireless@vger.kernel.org In-Reply-To: MIME-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1 References: <20080612093833.0fb9cdd6@bree.surriel.com> <1213278884.3936.15.camel@johannes.berg> Sender: linux-wireless-owner@vger.kernel.org List-ID: On Thu, Jun 12, 2008 at 5:12 PM, Zdenek Kabelac wrote: > 2008/6/12 Johannes Berg : >> On Thu, 2008-06-12 at 09:38 -0400, Rik van Riel wrote: >>> On Thu, 12 Jun 2008 12:07:34 +0200 >>> "Zdenek Kabelac" wrote: >>> >>> > It looks like while there was a huge amount of buffers and caches - >>> > system was unable to allocate few pages for kmalloc in iwl3945 driver >>> > after resume. >>> >>> It looks like this is because it wants to allocate 2**5 contiguous >>> pages, which is 128kB of contiguous kernel memory. >> >> 64-bit system I assume? >> The allocation should be 256 * 20 * sizeof(struct sk_buff *). >> >> Try the patch below. It should improve code generation too. > > I'll surely try you patch - but is the iwl the only driver which needs > 128kB continuous memory chunk? We do some stupid free-alloc sequence on restart this is where it fails. I'm still polishing a patch that eliminates it. Tomas