[SLL] 32 bit distro that supports 4GB ram with stock kernel

[Eric Kahklen]

Here is a "How To" I found on the subject.

http://www.kreno.be/2007/11/22/howto-ubuntu-4gb-memory-support/

I'd like to avoid building custom kernels if possible.  Is this an  
Ubuntu specific issue? or do other distros have the same problem?

Thanks,
Eric
On Apr 2, 2008, at 7:08 AM, Jesse Keating wrote:

> On Wed, 2008-04-02 at 07:01 -0700, Brian C. Lane wrote:
>>
>> Actually, that sounds right. What happens is that the kernel uses a  
>> 4G
>> virtual space for each process, and reserves a bit of it for  
>> itself. So
>> when you hit 4G the usable amount of space is actually 4G - Kernel  
>> Memory.
>>
>> Here is an article that does a good job of describing it:
>>
>> http://kerneltrap.org/node/2450
>
> Not really, as nothing on this page really states that 3G is the max a
> 32bit kernel can see.  It talks about 1G without HIGHMEM, or two
> different HIGHMEM barriers, 4G and 64G.
>
> I still posit that Ubuntu claiming that their 32bit kernels only  
> support
> up to 3G of ram seems fishy.
>
> -- 
> Jesse Keating RHCE      (jkeating.livejournal.com)
> Fedora Project          (fedoraproject.org/wiki/JesseKeating)
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