On Wed, Nov 17, 2010 at 4:15 PM, Pasi Kärkkäinen pasik@iki.fi wrote:
On Tue, Nov 16, 2010 at 04:14:01PM -0600, Barry Brimer wrote:
Quoting James Bensley jwbensley@gmail.com:
Eh? How can you have 16GBs on a 32bit kernel?
You can have up to 64GB using PAE https://secure.wikimedia.org/wikipedia/en/wiki/Physical_Address_Extension.
Yeah, but in reality you can't run 64GB 32bit PAE kernel. All the lowmem would be used for page structs, and the system wouldn't be usable.
16GB PAE 32bit system still has some lowmem available..
I think CentOS 4 had a PAE kernel called hugemem that had a 2048/2048 address space that allowed for up to 64GB. That was done away with in 5 I believe in favor of going 64-bit if you have more then 16GB, even if you plan on using 32-bit apps.
-Ross