Date: Wed, 16 Jun 2004 10:00:42 +0200 From: Daniel Lang <dl@leo.org> To: Peter Wemm <peter@wemm.org> Cc: freebsd-current@freebsd.org Subject: Re: PAE on -current pitfalls and issues? Message-ID: <20040616080042.GA7648@atrbg11.informatik.tu-muenchen.de> In-Reply-To: <200406151357.58738.peter@wemm.org> References: <20040615124605.GA4779@atrbg11.informatik.tu-muenchen.de> <20040615125552.GB4779@atrbg11.informatik.tu-muenchen.de> <200406151357.58738.peter@wemm.org>
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Hi Peter,
Peter Wemm wrote on Tue, Jun 15, 2004 at 01:57:58PM -0700:
[..]
> > I just stumbled across the handbook section about PAE,
> > so this says modules are not working. I assume this is
> > still the case.
>=20
> There's a gotcha with KVA_PAGES. On a standard kernel, there are 1024=20
> Page directory slots. By default we use 256 of them for 1 out of 4GB.
>=20
> On a PAE kernel, there are now 2048 page directory slots. The same 1:3=
=20
> split requires a default KVA_PAGES of 512. So if you want to increase=20
> KVA beyond the default 1GB, do not forget to take the scaling into=20
> account.
Thanks a lot!
Best regards,
Daniel
--=20
IRCnet: Mr-Spock
- kommst du siehst du, gehst du hast du, weisst du, krass! -
Daniel Lang * dl@leo.org * +49 89 289 18532 * http://www.leo.org/~dl/
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