Re: how to increase commandline size (patch + changelog)

[Jeff Chua]

On Tue, 10 Oct 2006, Marco Gerards wrote:

> Hollis Blanchard <address@hidden> writes:
> > 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.

Is it possible to "calculate" the needed offset for the exact cmdline 
length user pass in to grub and set this in grub2/kern/i386/pc/startup.S, 
then we don't need to worry about what the user pass in.


Jeff.