Re: PAE problems was [RFC] Reproducible OOM with just a few sleeps

Pavel Machek
2013-02-10T19:09:24Z

On Wed 2013-02-06 16:28:08, Dave Hansen wrote:
> On 02/01/2013 02:25 AM, Pavel Machek wrote:
> > Ouch, and... IIRC (hpa should know for sure), PAE is neccessary for
> > R^X support on x86, thus getting more common, not less. If it does not
> > work, that's bad news.
>
> Dare I ask what "R^X" is?

Read xor Execute, aka NX.... support for executable but not readable
pages. Usefull for making exploits harder iirc.
Pavel
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