linux-kernel - Re: [PATCH -mm 1/2] kexec jump -v12: kexec jump

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Date:	Mon, 14 Jul 2008 09:32:21 -0400
From:	Vivek Goyal <vgoyal@...hat.com>
To:	Pavel Machek <pavel@...e.cz>
Cc:	Nigel Cunningham <nigel@...el.suspend2.net>,
	Andrew Morton <akpm@...ux-foundation.org>,
	Huang Ying <ying.huang@...el.com>,
	"Eric W. Biederman" <ebiederm@...ssion.com>,
	"Rafael J. Wysocki" <rjw@...k.pl>, linux-kernel@...r.kernel.org,
	linux-pm@...ts.linux-foundation.org,
	Kexec Mailing List <kexec@...ts.infradead.org>,
	Horms <horms@...ge.net.au>
Subject: Re: [PATCH -mm 1/2] kexec jump -v12: kexec jump

On Mon, Jul 14, 2008 at 07:46:44AM +0200, Pavel Machek wrote:
> On Sat 2008-07-12 11:02:17, Nigel Cunningham wrote:
> > Hi.
> > 
> > On Fri, 2008-07-11 at 16:11 -0400, Vivek Goyal wrote:
> > > Hi Andrew,
> > > 
> > > We can use this patchset for hibernation, but can it be a better way of doing
> > > things than what we already have, I don't know. Last time I had raised
> > > this question and power people had various views. In the end, Pavel wanted
> > > this patchset to be in.  Pavel, can tell more here...
> > > 
> > > To me this patchset looks interesting for couple of reasons.
> > > 
> > > - Looks like an interesting feature where one can have a separate kernel
> > >   in memory and one can switch between the kernels on the fly. It can
> > >   be modified to have more than one kernel in memory at a time.
> > 
> > I'm not sure how useful that would be, though. I already have
> > functionality in TuxOnIce which allows you to resume a different image
> > instead of powering off (roughly the same thing when combined with not
> > removing the image after resuming). It was neat when testing to be
> > able
> 
> Beaty of kjump is that it is supposed to used on half-broken system,
> so it is useful for debugging.
> 

What do you mean by supposed to be used on half-broken system?

Thanks
Vivek
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