On Wed, 2005-07-20 at 10:46 -0400, Bryan J. Smith wrote:
Okay, I did some elementary research and it appears it was never adopted in the stock 2.4 kernel. Although 2.6 seems to have been designed for it -- although I see the issues you were talking about, largely when user >2GiB. I'd be interested in finding out if they have the same issues with the 64GiB mode and formal PAE36 paging.
Just FYI, I confirmed it is a 2.6 thing, and Red Hat backported it to 2.4. I also refreshed myself to find out that _both_ 1G/3G (aka HIGHMEM) and 4G/4G are PAE36 approaches.