I'm doing some research, and trying to find out if any processors do not support PAE that are currently being used. Wikipedia has a short list (Pentium M, Celeron M, Pentium PRO... I found this list under Executable Space Protection ).
Are the processors that do not support PAE being used in current systems? I'm looking at how much risk there is in setting PAE as the default mode in a linux distribution.
Thanks for the help!
Edit: (By the way, I am looking into this for the admins of the Devil-Linux Linux distribution.)