linux-kernel - Re: 2.6.32-rc3: low mem - only 378MB on x86

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Date:	Mon, 5 Oct 2009 17:30:51 -0700 (PDT)
From:	Linus Torvalds <torvalds@...ux-foundation.org>
To:	Jeff Chua <jeff.chua.linux@...il.com>
cc:	Valdis.Kletnieks@...edu, Tomasz Chmielewski <mangoo@...g.org>,
	Daniel J Blueman <daniel.blueman@...il.com>,
	Byron Stanoszek <bstanoszek@...time.com>,
	Dave Hansen <dave@...ux.vnet.ibm.com>,
	Hugh Dickins <hugh.dickins@...cali.co.uk>,
	Linux Kernel <linux-kernel@...r.kernel.org>,
	Andrew Morton <akpm@...ux-foundation.org>,
	Hugh Dickins <hugh@...itas.com>
Subject: Re: 2.6.32-rc3: low mem - only 378MB on x86_32 with 64GB. Why?



On Tue, 6 Oct 2009, Jeff Chua wrote:
> 
> Loud and clear. And appreciated all the replies. I think it's time for
> upgrade!

As Byron said, it really should be sufficient to just upgrade the kernel 
(I presume that you already have a CPU that is 64-bit capable: not very 
many boards with old CPU's can even fit 64GB of ram).

In fact, I wish more people did that, just so that we'd get better 
coverage of the 32-bit compat code. We occasionally find issues there, 
although I think it's getting rarer.

			Linus
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