linux-kernel - Re: [linux-pm] Re: [PATH 1/1] Kexec jump - v2

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Message-ID: <20070821101404.GA1704@elf.ucw.cz>
Date:	Tue, 21 Aug 2007 12:14:04 +0200
From:	Pavel Machek <pavel@....cz>
To:	"Huang, Ying" <ying.huang@...el.com>
Cc:	david@...g.hm, nigel@...el.suspend2.net,
	Kexec Mailing List <kexec@...ts.infradead.org>,
	linux-kernel@...r.kernel.org,
	"Eric W. Biederman" <ebiederm@...ssion.com>,
	Andrew Morton <akpm@...ux-foundation.org>,
	linux-pm@...ts.linux-foundation.org,
	Jeremy Maitin-Shepard <jbms@....edu>
Subject: Re: [linux-pm] Re: [PATH 1/1] Kexec jump - v2 - kexec jump

Hi!

> On Thu, 2007-08-16 at 12:26 +0200, Pavel Machek wrote:
> > Ping... is there some next version?
> > 
> > I'm stuck at the tools side currently. kexec-1.101 just won't load the
> > kernel properly, and kexec-testing from git does not know -j option. I
> > tried hand-patching it, but got lots of scary rejects.
> > 
> > Is there chance for a patch against kexec-testing?
> 
> I have some other work to do recently. So the next version will delay
> for some while. :(

Ok, I got it to work -- thanks a lot.

Yes, acpi=off is mandatory. Unfortunately, thinkpad x60 does not boot
with acpi=off (should we add another test to linux firmware kit?
Machines should still boot in acpi=off mode...). acpi=off noapic
nolapic nosmp makes it boot, and that in turn makes kjump work.

Screen is not refreshed on kjump back to original kernel, but I guess
that's to be expected. I did not play with framebuffer, yet.

Maybe it is time to move kjump functionality into -mm and
kexec-testing?

									Pavel
-- 
(english) http://www.livejournal.com/~pavelmachek
(cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html
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