From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751425Ab2LCH0V (ORCPT ); Mon, 3 Dec 2012 02:26:21 -0500 Received: from mail-bk0-f46.google.com ([209.85.214.46]:40104 "EHLO mail-bk0-f46.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751191Ab2LCH0U (ORCPT ); Mon, 3 Dec 2012 02:26:20 -0500 Message-ID: <50BC5419.6020903@googlemail.com> Date: Mon, 03 Dec 2012 07:26:17 +0000 From: Chris Clayton User-Agent: Mozilla/5.0 (X11; Linux i686; rv:17.0) Gecko/17.0 Thunderbird/17.0 MIME-Version: 1.0 To: Andrew Morton CC: Jiang Liu , Wen Congyang , David Rientjes , Jiang Liu , Maciej Rutecki , "Rafael J . Wysocki" , Mel Gorman , Minchan Kim , KAMEZAWA Hiroyuki , Michal Hocko , Jianguo Wu , linux-mm@kvack.org, linux-kernel@vger.kernel.org Subject: Re: [RFT PATCH v2 4/5] mm: provide more accurate estimation of pages occupied by memmap References: <20121120111942.c9596d3f.akpm@linux-foundation.org> <1353510586-6393-1-git-send-email-jiang.liu@huawei.com> <20121128155221.df369ce4.akpm@linux-foundation.org> <50B73E56.4050603@googlemail.com> <50BBB21D.3070005@googlemail.com> In-Reply-To: <50BBB21D.3070005@googlemail.com> Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 12/02/12 19:55, Chris Clayton wrote: > > > On 11/29/12 10:52, Chris Clayton wrote: >> On 11/28/12 23:52, Andrew Morton wrote: >>> On Wed, 21 Nov 2012 23:09:46 +0800 >>> Jiang Liu wrote: >>> >>>> Subject: Re: [RFT PATCH v2 4/5] mm: provide more accurate estimation >>>> of pages occupied by memmap >>> >>> How are people to test this? "does it boot"? >>> >> >> I've been running kernels with Gerry's 5 patches applied for 11 days >> now. This is on a 64bit laptop but with a 32bit kernel + HIGHMEM. I >> joined the conversation because my laptop would not resume from suspend >> to disk - it either froze or rebooted. With the patches applied the >> laptop does successfully resume and has been stable. >> >> Since Monday, I have have been running a kernel with the patches (plus, >> from today, the patch you mailed yesterday) applied to 3.7rc7, without >> problems. >> > > I've been running 3.7-rc7 with the patches listed below for a week now > and it has been perfectly stable. In particular, my laptop will now > successfully resume from suspend to disk, which always failed without > the patches. > I should have said, of course, that it was -rc6 and earlier that would not boot without Jiang Liu's patches. I applied those patches to rc-6 and my resume after suspend to disk problem was fixed. For a subsequent week I have been running with the patches applied to -rc7, with Andrew's patch also applied for the last 3 days. -rc7 was not subject to the resume problem because the patch which broke it had been reverted. All this has been on a 64bit laptop, but running a 32bit kernel with HIGHMEM. Apologies for yesterday's inaccuracy. I shouldn't send testing reports when I'm in a hurry. > From Jiang Liu: > 1. [RFT PATCH v2 1/5] mm: introduce new field "managed_pages" to struct > zone > 2. [RFT PATCH v1 2/5] mm: replace zone->present_pages with > zone->managed_pages if appreciated > 3. [RFT PATCH v1 3/5] mm: set zone->present_pages to number of existing > pages in the zone > 4. [RFT PATCH v2 4/5] mm: provide more accurate estimation of pages > occupied by memmap > 5. [RFT PATCH v1 5/5] mm: increase totalram_pages when free pages > allocated by bootmem allocator > > From Andrew Morton: > 6. mm-provide-more-accurate-estimation-of-pages-occupied-by-memmap.patch > > Tested-by: Chris Clayton > >> Thanks, >> Chris >> >>