Re: Kernel falls apart under light memory pressure (i.e. linking vmlinux)

From: Minchan Kim
Date: Thu May 19 2011 - 20:20:39 EST

On Thu, May 19, 2011 at 11:51 PM, Wu Fengguang <fengguang.wu@xxxxxxxxx> wrote:
>> > I had 6GB swap available, so there shouldn't have
>> > been any OOM.
>> Yes. It's strange but we have seen such case several times, AFAIR.
> I noticed that the test script mounted a "ramfs" not "tmpfs", hence
> the 1.4G pages won't be swapped?

Right. ramfs pages can not be swapped out.
But in log, anon 200M in DMA32 doesn't include unevictable 1.4GB.
So we can swap out 200M, still.

> Thanks,
> Fengguang

Kind regards,
Minchan Kim
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