From: "Bryan J. Smith b.j.smith@ieee.org"

Hmmm, maybe I haven't built from a stock kernel in a long time. ;-> All I know is that I've seen it in several other distros. I thought the whole purpose of the 4Gi/4Gi model was to give a support/performance point between the 1Gi/3Gi and full 64GiB model.

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.

Anyhoo, my apologies on that _poor_ assumption. Given my lack of exposure to stock kernels, I should have kept my mouth shut. I don't know why I didn't put 2-2 together.

But it should be noted that it's no longer a Red Hat-only thing. I've seen several non-Red Hat (or long-gone Red Hat forked) distros who are using it. I should have made my responses in that context. Again, my apologies for that.

-- Bryan J. Smith mailto:b.j.smith@ieee.org