linux-kernel - Re: Memory not being reported

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Message-id: <20090123124400.GA7871@tatooine.rebelbase.local>
Date:	Fri, 23 Jan 2009 13:44:00 +0100
From:	markus reichelt <ml@...eichelt.de>
To:	David Ronis <ronis@...ispc.chem.mcgill.ca>
Cc:	linux-kernel@...r.kernel.org
Subject: Re: Memory not being reported

* David Ronis <ronis@...ispc.chem.mcgill.ca> wrote:

> I'm running 2.6.28.1 on an i686 (slackware-12.1 for the most part)
> box. I recently added some extra memory, expanding from 2Gb to 4. 
> Everything works as expected except that not all of the memory
> seems to be seen.

I've got a comparable system, and could only see about 3G of the
installed 4G.


> One suspicion is that the configure option CONFIG_HIGHMEM4G=y
> should be unset and the CONFIG_HIGHMEM64G  should be.

Indeed, using CONFIG_HIGHMEM64G does the trick for me, 4G usuable.

(I've also CONFIG_RESOURCES_64BIT set, maybe that's needed as well)

-- 
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