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Re: 4GB address space



Gabor Gombas <gombasg@sztaki.hu> writes:

> On Tue, Feb 28, 2006 at 05:46:07PM +0100, Wouter Verhelst wrote:
>
> [...]
>> > user applications can use the whole 4GB of virtual address space while the
>> > kernel runs it's own AS.
> [...]
>> 
>> Run "make menuconfig"; then, select "Processor type and features", and
>> "High Memory Support". Done.
>
> The question was not about HIGHMEM but about Ingo Molnar's "4G/4G
> split" patch, which is not part of the base kernel. HIGHMEM does not let
> userspace use the whole 4G address space.
>
> Gabor

Why not just buy a amd64/em64t cpu and run a 64bit kernel with 32bit
userland?

Gives you all of the 4GB (minus a few pages) without hacks or extra
patches and without slowdowns.

MfG
        Goswin



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