Messages in this thread | | | Subject | Re: bad DMAR interaction with iwlagn and SATA | From | Johannes Berg <> | Date | Tue, 07 Oct 2008 19:08:43 +0200 |
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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 [unhandled content-type:application/pgp-signature] | |