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    SubjectRe: HIGHMEM4G config for 1GB RAM on desktop?
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    On Fri, 06 Aug 2004 12:52:36 -0000, linux@horizon.com said:

    > But if you're using PAE, you've got > 4G of RAM, so there's no need to
    > be clever trying to avoid HIGHMEM options.

    Poking around in arch/i386/mm/init.c finds this:

    #ifdef CONFIG_X86_PAE
    int nx_enabled = 0;

    static void __init set_nx(void)
    {
    unsigned int v[4], l, h;

    if (cpu_has_pae && (cpuid_eax(0x80000000) > 0x80000001)) {

    I could certainly see somebody wanting to use the NX stuff with only 2G of RAM.....
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