To NX or not to NX

[Arjan van de Ven]

On Mon, 2007-01-01 at 12:35 -0600, Chris Adams wrote:
> Once upon a time, Jeremy Katz <katzj at redhat.com> said:
> > Unfortunately, you have to use a PAE kernel to use real NX :(
> 
> What is the downside of using a PAE kernel?
> 
> I've got an Athlon 64 where I'm still running the 32 bit OS (for
> compatibility mainly).  Is it possible to install and run the 64 bit
> kernel with a fully 32 bit userland?  Would that be better/worse than
> running a 32 bit PAE kernel?

worse, emulation isn't free....