kexec: Clearing registers just before jumping into purgatory

[Richard Weinberger]

On Fri, Oct 11, 2013 at 5:48 PM, Matthew Garrett <mjg59 at srcf.ucam.org> wrote:
> On Fri, Oct 11, 2013 at 11:44:50AM -0400, Vivek Goyal wrote:
>
>> Just Curious. How is it useful. IOW, what's your use case of booting a new
>> kernel and then jumping back.
>
> I'm kexecing into a kernel with a modified /dev/mem, modifying the
> original kernel and then jumping back into it.

How do you update the original kernel?
Sounds interesting.

-- 
Thanks,
//richard