Re: kexec: Clearing registers just before jumping into purgatory

[Vivek Goyal]

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. If
nobody is using it, I will advocate removing it. It introduces extra
complexity and makes new code changes more difficult.

Thanks
Vivek
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