Re: NonExecutable Bit in 32Bit

From: Tuncer Ayaz
Date: Wed Apr 25 2007 - 02:37:50 EST

On 4/25/07, Tuncer Ayaz <tuncer.ayaz@xxxxxxxxx> wrote:
On 4/25/07, Cestonaro, Thilo (external)
<Thilo.Cestonaro.external@xxxxxxxxxxxxxxxxxxx> wrote:
> Hey,
> > CONFIG_X86_PAE=y
> Ok in highmem it's active, whats about lowmem?
> x86-64 is NX active for lowmem too AFAIK.

It's more of an issue of having PAE enabled.
Without PAE you are not able to use the the NX bit.
That's the way the CPU works, not Linux.

Forgot to add:
from arch/i386/Kconfig:
config X86_PAE
depends on HIGHMEM64G
default y

Hope this helps.

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