linux-kernel - Re: No warning on resume with different kernel version

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Message-ID: <20090316212329.GA12308@elf.ucw.cz>
Date:	Mon, 16 Mar 2009 22:23:29 +0100
From:	Pavel Machek <pavel@....cz>
To:	"Rafael J. Wysocki" <rjw@...k.pl>
Cc:	Rolf Eike Beer <eike-kernel@...tec.de>,
	LKML <linux-kernel@...r.kernel.org>
Subject: Re: No warning on resume with different kernel version

On Mon 2009-03-16 21:33:10, Rafael J. Wysocki wrote:
> On Monday 16 March 2009, Pavel Machek wrote:
> > On Sat 2009-03-14 16:28:59, Rolf Eike Beer wrote:
> > > Hi,
> > > 
> > > I'm sure this had worked before. And since I don't do that on a regular basis, 
> > > but only by accident, I have no idea when it stopped working. But with my 
> > > 2.6.28 kernel and everything more recent I don't get a warning if there is a 
> > > suspend image of a different kernel version, but simply the new kernel starts 
> > > and throws everything away. Is this a kernel fault or something with the 
> > > userspace stuff? Whom to blame for this?
> > 
> > Actually, it should now be possible to resume with different kernel
> > than the one that did the suspendding...
> 
> As long as it is 64-bit.
> 
> Something broke if that doesn't work.
> 
> Rolf, is your kernel 64-bit?

And in 32-bit case, we should refuse to load the image. Something
broke if that does not work :-).
								Pavel
-- 
(english) http://www.livejournal.com/~pavelmachek
(cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html
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