Re: kexec: Clearing registers just before jumping into purgatory

Matthew Garrett
2013-10-11T15:38:28Z

On Fri, Oct 11, 2013 at 08:52:06AM -0400, Vivek Goyal wrote:
> On Fri, Oct 11, 2013 at 01:04:55PM +0200, Daniel Kiper wrote:
>
> [..]
> > > In theory you can swap between to kernels with the preserve_context
> > > case. Technically I like the ability but I don't know that it has ever
> > > achieved much uptake.
> >
> > I think that this is nice idea too. However, I have not seen its usage in real.
> > Even once there was an idea to remove that stuff from Linux Kernel.
>
> I have not seen anybody using it. I don't even know if it works or not.

It works. I'm using it.

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