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    SubjectRe: AMD Athlon64 X2 Dual-core and 4GB
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    Vladimir Lazarenko <vlad@lazarenko.net> writes:

    >>>>Thus, the question - would I be able to use whole 4G RAM with dual-core amd
    > and
    >>>>kernel with SMP compiled for i686?
    >> Why would you use a dual core AMD in 32 bit mode? Just build an x86_64
    >> kernel.
    >> If you want to use 4GB in 32 bit mode, you *need* remapping (or you lose
    >> part of your memory). Remapping means you have MORE than 4 GB of physical
    >> address, which means you need PAE to use it at all.
    >
    > Because I find my distribution's 64-bit release reasonably unstable yet? :)
    >
    > Or can I somehow build an x86_64 kernel and keep using 32-bit libc?

    Building a x86_64 kernel is a bit of a trick on a 32bit distro.
    You need an appropriate version of gcc, and binutils. But it runs
    fine.

    Eric
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