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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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[-- Attachment #1 --]
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.
> 
> There's a gotcha with KVA_PAGES.  On a standard kernel, there are 1024 
> Page directory slots.  By default we use 256 of them for 1 out of 4GB.
> 
> On a PAE kernel, there are now 2048 page directory slots.  The same 1:3 
> split requires a default KVA_PAGES of 512.  So if you want to increase 
> KVA beyond the default 1GB, do not forget to take the scaling into 
> account.

Thanks a lot!

Best regards,
 Daniel
-- 
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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