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SubjectRe: [RFT PATCH v2 4/5] mm: provide more accurate estimation of pages occupied by memmap


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 <liuj97@gmail.com> 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.

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 <chris2553@googlemail.com>

> Thanks,
> Chris
>
>


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