Date: Thu, 12 Jun 2008 17:43:57 -0700
From: Andrew Morton <akpm@linux-foundation.org>
To: "Zdenek Kabelac" <zdenek.kabelac@gmail.com>
Cc: johannes@sipsolutions.net, tomasw@gmail.com, riel@redhat.com,
	linux-kernel@vger.kernel.org, yi.zhu@intel.com,
	reinette.chatre@intel.com, linux-wireless@vger.kernel.org
Subject: Re: Problem: Out of memory after 2days with 2GB RAM
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On Thu, 12 Jun 2008 22:11:32 +0200
"Zdenek Kabelac" <zdenek.kabelac@gmail.com> wrote:

> Well - it's great that there will be saved few kB in allocation of
> never used pointers in iwl driver - but does this really solve the
> problem that kernel gets relatively quickly out of memory for
> allocations of this size - I guess iwl isn't the only driver
> requesting 32 sequential pages.

I hope it is the only one.  Doing a 128kb GFP_ATOMIC allocation is
hopelessly unreliable.  Even a 128k GFP_KERNEL allocation will fail all
over the place.

Please convert the driver to allocate no more than 4k at a time.