From: mina86@mina86.com (Michal Nazarewicz)
To: linux-arm-kernel@lists.infradead.org
Subject: [Linaro-mm-sig] [PATCHv17 0/11] Contiguous Memory Allocator
Date: Fri, 18 Nov 2011 22:26:49 +0100 [thread overview]
Message-ID: <op.v45u6zyy3l0zgt@mpn-glaptop> (raw)
In-Reply-To: <CA+K6fF6SH6BNoKgwArcqvyav4b=C5SGvymo5LS3akfD_yE_beg@mail.gmail.com>
On Fri, 18 Nov 2011 22:20:48 +0100, sandeep patil <psandeep.s@gmail.com> wrote:
> I am running a simple test to allocate contiguous regions and write a log on
> in a file on sdcard simultaneously. I can reproduce this migration failure 100%
> times with it.
> when I tracked the pages that failed to migrate, I found them on the
> buffer head lru
> list with a reference held on the buffer_head in the page, which
> causes drop_buffers()
> to fail.
>
> So, i guess my question is, until all the migration failures are
> tracked down and fixed,
> is there a plan to retry the contiguous allocation from a new range in
> the CMA region?
No. Current CMA implementation will stick to the same range of pages also
on consequent allocations of the same size.
--
Best regards, _ _
.o. | Liege of Serenely Enlightened Majesty of o' \,=./ `o
..o | Computer Science, Micha? ?mina86? Nazarewicz (o o)
ooo +----<email/xmpp: mpn@google.com>--------------ooO--(_)--Ooo--
next prev parent reply other threads:[~2011-11-18 21:26 UTC|newest]
Thread overview: 36+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-11-18 16:43 [PATCHv17 0/11] Contiguous Memory Allocator Marek Szyprowski
2011-11-18 16:43 ` [PATCH 01/11] mm: page_alloc: handle MIGRATE_ISOLATE in free_pcppages_bulk() Marek Szyprowski
2011-12-12 13:42 ` Mel Gorman
2011-12-12 14:23 ` Michal Nazarewicz
2011-12-12 14:42 ` Mel Gorman
2011-11-18 16:43 ` [PATCH 02/11] mm: compaction: introduce isolate_{free,migrate}pages_range() Marek Szyprowski
2011-12-12 14:07 ` Mel Gorman
2011-12-12 15:22 ` Michal Nazarewicz
2011-12-12 16:30 ` Mel Gorman
2011-12-12 16:46 ` Michal Nazarewicz
2011-12-12 17:20 ` Mel Gorman
2011-11-18 16:43 ` [PATCH 03/11] mm: mmzone: introduce zone_pfn_same_memmap() Marek Szyprowski
2011-12-12 14:19 ` Mel Gorman
2011-12-12 14:35 ` Michal Nazarewicz
2011-12-12 14:40 ` Mel Gorman
2011-12-12 14:51 ` Michal Nazarewicz
2011-12-12 15:51 ` Mel Gorman
2011-11-18 16:43 ` [PATCH 04/11] mm: compaction: export some of the functions Marek Szyprowski
2011-12-12 14:29 ` Mel Gorman
2011-12-12 14:41 ` Michal Nazarewicz
2011-12-12 15:40 ` Mel Gorman
2011-12-12 15:46 ` Michal Nazarewicz
2011-12-12 16:22 ` Arnd Bergmann
2011-11-18 16:43 ` [PATCH 05/11] mm: page_alloc: introduce alloc_contig_range() Marek Szyprowski
2011-11-18 16:43 ` [PATCH 06/11] mm: mmzone: MIGRATE_CMA migration type added Marek Szyprowski
2011-11-18 16:43 ` [PATCH 07/11] mm: page_isolation: MIGRATE_CMA isolation functions added Marek Szyprowski
2011-11-18 16:43 ` [PATCH 08/11] drivers: add Contiguous Memory Allocator Marek Szyprowski
2011-11-18 16:43 ` [PATCH 09/11] X86: integrate CMA with DMA-mapping subsystem Marek Szyprowski
2011-11-18 16:43 ` [PATCH 10/11] ARM: " Marek Szyprowski
2011-11-18 16:43 ` [PATCH 11/11] ARM: Samsung: use CMA for 2 memory banks for s5p-mfc device Marek Szyprowski
2011-11-18 21:20 ` [Linaro-mm-sig] [PATCHv17 0/11] Contiguous Memory Allocator sandeep patil
2011-11-18 21:26 ` Michal Nazarewicz [this message]
2011-11-18 23:30 ` sandeep patil
2011-11-19 18:09 ` Michal Nazarewicz
2011-11-25 16:43 ` [PATCH] mm: cma: hack/workaround for some allocation issues Marek Szyprowski
2011-11-25 21:08 ` Michal Nazarewicz
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