kexec: Clearing registers just before jumping into purgatory

[Matthew Garrett]

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.

-- 
Matthew Garrett | mjg59 at srcf.ucam.org