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From: Marco Gerards <mgerards@xs4all.nl>
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Date: Tue, 10 Oct 2006 18:08:12 +0200
In-Reply-To: <1160494821.1123.17.camel@basalt.austin.ibm.com> (Hollis
	Blanchard's message of "Tue, 10 Oct 2006 10:40:21 -0500")
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Cc: Jeff Chua <jchua@fedex.com>
Subject: Re: how to increase commandline size (patch + changelog)
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Hollis Blanchard <hollis@penguinppc.org> writes:

> On Tue, 2006-10-10 at 16:38 +0200, Marco Gerards wrote:
>> 
>> - Add some run-time argument to the loader to override the command
>>   line length.  But I do not like this either because it allows
>>   breaking the Linux boot protocol. 
>
> What exactly happens if we give the kernel a longer cmdline than it
> supports? Does it just truncate, or fail to boot?

It truncates.

> Why not allow users to pass as much as they want, and just warn them if
> it's >255?

I am not sure what the impact is.  Linux has a memory map and I assume
the memory after the commandline is used for other things, or might be
overwritten.

--
Marco