linux-kernel - Re: [PATCH] x86_64, i386: Add command line length to boot protocol

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Message-ID: <20070312104352.GA4313@ucw.cz>
Date:	Mon, 12 Mar 2007 10:43:52 +0000
From:	Pavel Machek <pavel@....cz>
To:	Dave Jones <davej@...hat.com>,
	Andrew Morton <akpm@...ux-foundation.org>,
	alon.barlev@...il.com, ak@...e.de, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] x86_64, i386: Add command line length to boot protocol

On Tue 2007-03-06 13:21:34, Dave Jones wrote:
> On Tue, Mar 06, 2007 at 07:14:30PM +0100, Bernhard Walle wrote:
> 
>  > +cmdline_size:   .long   COMMAND_LINE_SIZE-1     #length of the command line,
> 
> Why a long? It's unlikely that someone is going to have a command line
> bigger than 0xffff.

Well, I could imagine overflowing that. Describing your numa setup,
excluding few bad bits of ram using memmap=exact, set up your boot
over iscsi on cmdline.... these are likely to eat insane ammount of
cmdline space.
							Pavel
-- 
(english) http://www.livejournal.com/~pavelmachek
(cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html
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