Re: [Hampshire] 4GB on AMD64

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Author: Hugo Mills
Date:  
To: sam, Hampshire LUG Discussion List
Subject: Re: [Hampshire] 4GB on AMD64

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On Sun, Jan 03, 2010 at 06:03:51PM +0000, Samuel Penn wrote:
> On Sunday 03 January 2010 17:05:54 Keith Edmunds wrote:
> > You shouldn't need to do anything so long as you're running a
> > reasonably recent kernel. Which kernel version is it? What's the
> > output of "cat /proc/memory|head -1"? If you have access to the
> > configuration file the kernel was built to (often found in /boot),
> > run "grep CONFIG_HIGHMEM" on it and post the output.
>
> It's not recent, but it's not *that* old:
>
> fenris ~ # uname -a
> Linux fenris 2.6.24-gentoo-r4 #4 SMP PREEMPT Fri May 9 09:40:16 BST 2008
> x86_64 AMD Athlon(tm) 64 Processor 3200+ AuthenticAMD GNU/Linux


> There isn't a CONFIG_HIGHMEM defined in the .config file.


That's because the amd64 architecture doesn't have that kernel
config option at all -- it's back to the good old flat memory model
again.

Hugo.

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=== Hugo Mills: hugo@... carfax.org.uk | darksatanic.net | lug.org.uk ===
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