On Tue, 2008-10-07 at 13:04 -0400, Kyle McMartin wrote:

quoted text
> 2MB pages (and 4MB pages) are dependent on PSE/PAE, there's no configurab=
le
quoted text
> page size on x86 like there is on other platforms.
>=20
> PSE gives you 4MB pages, PAE reduces your 4MB pages to 2MB pages (for
> extra flag and address bits.)
>=20
> 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