Re: [gentoo-user] 2GB of RAM

[David Klempner <klempner@imsanet.org>]

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* Ralph Slooten <axllent@gmail.com> [2006-06-21 04:12]:
> Sorry, but one thing remains unclear. Ignoring the fact that adding
> embedded extras to your kernel on a non-embedded system just to get the
> the VMSPLIT options is (in my opinion) confusing and unlogical, is this
> step actually needed considering I (according to your advice) would take
> the default VMSPLIT anyway?
> What I mean is simply: If I enable HIGHMEM4GB to allow the kernel to use
> my 2GB of RAM, do I still need to add the embedded options (as you
> explain above), or is simply using HIGHMEM4GB enough? It's maybe a tough
> question is ask, but you definitely seem to know exactly what you are
> talking about ;-)

Right; the right thing to do here is to not touch VMSPLIT at all, which
means there's no reason to be messing around with CONFIG_EMBEDDED. Just
set HIGHMEM4GB and be done with it (but, if you're editing a config
where you've already done so, make sure that you still have all of the
CONFIG_EMBEDDED dependent options set correctly before you unset it:
enable every one of the "standard kernel features" except for the extra
pass, and then make sure you have the default 3/1 VMSPLIT)

> > Hope this helps.
> 
> Is sure does! Any advice to the above question? With that I should be
> complete I think ;-) Where do you get your information from btw (I'm
> curious as I didn't find much via Google explaining as clear as you did)?

I did some googling about a year and a half ago, when I finally upgraded
my desktop from 512MB to 1GB and ran into these issues for the first
time, and I've spent some time poking around the kernel sources before.

-- 
David Klempner

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