64-bit LFS

Ken Moffat ken at kenmoffat.uklinux.net
Fri Apr 1 04:37:05 PST 2005


On Thu, 31 Mar 2005, Bruce Dubbs wrote:

> I just got a new system for testing LFS builds.  It is a Intel 3.2GHz P4
> system with "EM64T" technology.  It came with RH Enterprise 3.0 "for
> AMD64 and EM64T" preinstalled.

8-D

>
> I'm not really sure what the EM64T technology does, except Googling
> around seems to indicate that there is something about allowing more
> than 4G memory (32 address bits?).  uname -a gives:
>

> Linux lfs5 2.4.21-15.EL #1 SMP Thu Apr 22 00:09:47 EDT 2004 x86_64
> x86_64 x86_64 GNU/Linux
>

 I believe there may be internal kernel differences in _how_ things
work, particularly for addressing high memory, but with any recent 2.6
kernel it should just work.  Linuxhardware did a comparison back in
February:

http://www.linuxhardware.org/article.pl?sid=05/02/24/1747228

Ken
-- 
 das eine Mal als Tragödie, das andere Mal als Farce




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