From mboxrd@z Thu Jan  1 00:00:00 1970
From: Tao Ma <tao.ma@oracle.com>
Subject: Re: OOM problem caused by fs
Date: Wed, 09 Jun 2010 12:01:04 +0800
Message-ID: <4C0F1200.9030904@oracle.com>
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Cc: linux-fsdevel@vger.kernel.org
To: Seth Huang <seth.hg@gmail.com>
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Hi Seth,

On 06/08/2010 01:34 AM, Seth Huang wrote:
>> Are you using set_page_dirty to dirty the pages?
>
> Since part of our fs resembles nfs, we use
> __set_page_dirty_nobuffers() for
> address_space_operations->set_page_dirty, the same way nfs works.
>
>> Are you sure you don't have a refcount leak?
>
> One of my partners have already checked the page flags and reference
> count. They seem to be all right.
> Maybe we should check them again.
Which kernel version do you use?
Have you tried to change vm.lowmem_reserve_ratio? Check
Documentation/sysctl/vm.txt for how to use it.

Regards,
Tao