[Linaro-mm-sig] [PATCHv17 0/11] Contiguous Memory Allocator

[Michal Nazarewicz]

On Fri, 18 Nov 2011 22:20:48 +0100, sandeep patil <psandeep.s at 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.

-- 
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.o. | Liege of Serenely Enlightened Majesty of      o' \,=./ `o
..o | Computer Science,  Michał “mina86” Nazarewicz    (o o)
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