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

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Message-Id: <200704231954.46339.ak@suse.de>
Date:	Mon, 23 Apr 2007 19:54:46 +0200
From:	Andi Kleen <ak@...e.de>
To:	"H. Peter Anvin" <hpa@...or.com>
Cc:	"Eric W. Biederman" <ebiederm@...ssion.com>,
	Jeremy Fitzhardinge <jeremy@...p.org>,
	Chuck Ebbert <cebbert@...hat.com>,
	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>,
	Linus Torvalds <torvalds@...ux-foundation.org>
Subject: Re: [PATCH 10/28] i386: map enough initial memory to create lowmem mappings

On Monday 23 April 2007 19:45:41 H. Peter Anvin wrote:
> Eric W. Biederman wrote:
> > 
> > - I know of one system that had BIOS tables at 16MB I believe (and
> >   thus had a fairly low hole).
> > 
> 
> Please name names, otherwise this is just rumouring.  Seriously.  We 
> have enough cargo-cult programming as it is.

Unisys did this at some point in their large machines, but they fixed
that in a later BIOS.

Anyways, boot up should be robust against any holes if possible.

-Andi

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