ubuntu-hardened March 2013 archive
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ubuntu-hardened: Re: [ubuntu-hardened] NX bit and generic-pae ke

Re: [ubuntu-hardened] NX bit and generic-pae kernel.

From: Maurice McCarthy <manselton_at_nospam>
Date: Thu Mar 28 2013 - 16:08:07 GMT
To: Ubuntu security discussion <ubuntu-hardened@lists.ubuntu.com>

I used to get this error when I had an Acer One netbook wiith 1GB
memory. The fault there could only be corrected twith a difficult to
find BIOS upgrade. Other than that you need someone with better
understanding than myself.

Good Luck

On 28/03/2013, Daniel Curtis <sidetripping@gmail.com> wrote:
> Hi
>
> I would like to know if I should install a generic-pae kernel
> when my computer support NX bit? For now, I'm using non-pae
> generic kernel and NX is not enabled. My computer is an
> Intel(R) Celeron(R) CPU E3200 @ 2.40GHz (dual core).
>
> Do I have to install only linux-image-3.2.0-39-generic-pae package and
> NX protection will be activated during system start? Here's the information
> from e.g. '/var/log/dmesg' file about NX bit;
>
> *Notice: NX (Execute Disable) protection cannot be enabled in hardware:
> non-PAE kernel!
> NX (Execute Disable) protection: approximated by x86 segment limits*
>
> Cheers.
>

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