On Tue, 2008-10-07 at 13:04 -0400, Kyle McMartin wrote: > 2MB pages (and 4MB pages) are dependent on PSE/PAE, there's no configurable > page size on x86 like there is on other platforms. > > PSE gives you 4MB pages, PAE reduces your 4MB pages to 2MB pages (for > extra flag and address bits.) > > About the only useful places for these are large mappings like ioremap > and whatnot. Thanks for the explanation. Can you explain too why iwlwifi crashes when I enable 64k pages? ;) johannes
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