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To: linux-kernel@vger.kernel.org
From: "H. Peter Anvin" <hpa@zytor.com>
Subject: Re: mem= option for broken bioses
Date: 27 Feb 2003 15:48:16 -0800
Organization: Transmeta Corporation, Santa Clara CA
Message-ID: <b3m840$5e4$1@cesium.transmeta.com>
References: <F760B14C9561B941B89469F59BA3A8471380D7@orsmsx401.jf.intel.com>
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Followup to:  <F760B14C9561B941B89469F59BA3A8471380D7@orsmsx401.jf.intel.com>
By author:    "Grover, Andrew" <andrew.grover@intel.com>
In newsgroup: linux.dev.kernel
>
> > From: Pavel Machek [mailto:pavel@ucw.cz] 
> > I've seen broken bios that did not mark acpi tables in e820
> > tables. This allows user to override it. Please apply,
> 
> OK, looks reasonable. Can you also gen up a patch documenting this in
> kernel-parameters.txt?
> 

This is very much *NOT* reasonable.  In fact, screwing around with the
syntax of the mem= parameter is poison.  I know it has already
happened, and those changes need to be reverted and the new stuff
moved to a different option.

The mem= option is unique in that it is an option that affects both
the boot loader and the kernel.  Therefore, ITS SYNTAX MUST NOT
CHANGE.

	-hpa
-- 
<hpa@transmeta.com> at work, <hpa@zytor.com> in private!
"Unix gives you enough rope to shoot yourself in the foot."
Architectures needed: cris ia64 m68k mips64 ppc ppc64 s390 s390x sh v850 x86-64
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