Kexec command line length
bwalle at suse.de
Thu Jan 31 02:16:25 EST 2008
* Vivek Goyal <vgoyal at redhat.com> [2008-01-30 22:45]:
> No. 2.04 is really old. As per boot.txt, it was introduced in 2.6.14.
> Anyway, thinking about it more, Large command lines were introduced in
> 2.6.21 kernel (for both i386 and x86_64). cmdline_size was introduced
> in 2.6.22 (for both i386 and x86_64). So how about following test
> condition for both the arch.
> if (boot_protocol >= 2.06)
> error message based on cmdline_size field
> Warn user if command line is more than 256 but continue to work.
> Let the user know that it is not known if kernel being loaded
> supports command line size greater than 256. Command line will
> be truncated by destination kernel if it does not support large
> command lines. User is taking a chance
Yes, I also think that's sufficient.
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