Re: NonExecutable Bit in 32Bit

From: Tuncer Ayaz
Date: Tue Apr 24 2007 - 03:46:28 EST

On 4/24/07, William Heimbigner <icxcnika@xxxxxxxxxx> wrote:
On Tue, 24 Apr 2007, Cestonaro, Thilo (external) wrote:

> Hey,
> is it right, that the NX Bit is not used under i386-Arch but
> under x86_64-Arch?
> When yes, is there a special argument for it not to be used?
> Ciao Thilo
I don't think so - some i386 cpus definitely have support for
the NX bit.

In detail:
1) if your CPU has NX support (some 32bit Xeons do)
2) it is not disabled in the BIOS
3) you see 'nx' in the 'flags' line in /proc/cpuinfo
4) and you have a kernel with the following config options

NX should just work.

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