linux-kernel - Re: [PATH 0/1] Kexec jump - v2 - the first step to kexec based hibernation

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Message-ID: <20070806090210.GA15329@atrey.karlin.mff.cuni.cz>
Date:	Mon, 6 Aug 2007 11:02:10 +0200
From:	Pavel Machek <pavel@....cz>
To:	"Huang, Ying" <ying.huang@...el.com>
Cc:	"Eric W. Biederman" <ebiederm@...ssion.com>,
	nigel@...el.suspend2.net, "Rafael J. Wysocki" <rjw@...k.pl>,
	Jeremy Maitin-Shepard <jbms@....edu>,
	Alan Stern <stern@...land.harvard.edu>,
	Andrew Morton <akpm@...ux-foundation.org>, david@...g.hm,
	linux-kernel@...r.kernel.org, linux-pm@...ts.linux-foundation.org,
	Kexec Mailing List <kexec@...ts.infradead.org>
Subject: Re: [PATH 0/1] Kexec jump - v2 - the first step to kexec based hibernation

Hi!

> > Did the trick, I got the kernel to load, and it even attempted
> > exec... but I got doublefault (or what is it?)
> > 
> > Int 6: ... EIP: c4739906. Address is in reserve_bootmem_core.
> > 
> > Do I have to disable ACPI completely? I tried with acpi=off,
> > nosmp... but problem does not seem device related.
> 
> It seems that the problem has nothing to do with device or ACPI. Can you
> do a normal kexec? That is:
> 
> kexec -l <...>
> kexec -e
> 
> or 
> 
> kexec -p <...>
> ALT-SysRq-c to trigger a crash dump.

...that was indeed a problem. I can do successful kexec, as long as I
load bzImage (and not vmlinux). (Both kernels 2.6.22 and
2.6.23-rc2-git). Problem is, I can only load bzImage using -l, attempt
to load bzImage using -p results in 

"Could not find a free area of memory of 9000 bytes"
locate_hole failed

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