linux-kernel - Re: [PATCH 10/28] i386: map enough initial memory to create lowmem mappings

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Message-ID: <Pine.LNX.4.61.0704151145410.15892@yvahk01.tjqt.qr>
Date:	Sun, 15 Apr 2007 11:46:12 +0200 (MEST)
From:	Jan Engelhardt <jengelh@...ux01.gwdg.de>
To:	"H. Peter Anvin" <hpa@...or.com>
cc:	Jeremy Fitzhardinge <jeremy@...p.org>, Andi Kleen <ak@...e.de>,
	Andrew Morton <akpm@...ux-foundation.org>,
	virtualization@...ts.osdl.org, lkml <linux-kernel@...r.kernel.org>,
	Zachary Amsden <zach@...are.com>,
	Chris Wright <chrisw@...s-sol.org>,
	"Eric W. Biederman" <ebiederm@...ssion.com>,
	Linus Torvalds <torvalds@...ux-foundation.org>
Subject: Re: [PATCH 10/28] i386: map enough initial memory to create lowmem
 mappings


On Apr 14 2007 15:04, H. Peter Anvin wrote:
>
> Jeremy Fitzhardinge wrote:
>> -
>> +LOW_PAGES = 1<<(32-PAGE_SHIFT_asm)
>> +
>
> Again, for debugging... it would be interesting to replace this with:
>
> LOW_PAGES = (0x100000000-__PAGE_OFFSET) >> PAGE_SHIFT_asm

LOW_PAGES = (0x100000000ULL - __PAGE_OFFSET) >> PAGE_SHIT_asm


Jan
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