Re: Suspend on one machine, resume elsewhere

From: Pavel Machek <pavel@ucw.cz>
To: Jan Rychter <jan@rychter.com>
Cc: linux-kernel@vger.kernel.org
Subject: Re: Suspend on one machine, resume elsewhere
Date: Mon, 21 Jul 2003 00:53:43 +0200	[thread overview]
Message-ID: <20030720225342.GA866@elf.ucw.cz> (raw)
In-Reply-To: <m2r84m8jhh.fsf@tnuctip.rychter.com>

Hi!

>  > If you want to migrate programs between machines, run UMLinux, same
>  > config, on both machines. Ouch and you'll need swsusp for UMLinux,
>  > too
>  >>
>  >> That might be more important than you think.
> 
>  Pavel> :-). Well, it is also harder than you probably think, because
>  Pavel> UML is *very* strange architecture and it is not at all easy to
>  Pavel> save/restore its state. There were some patches in that area,
>  Pavel> but it never worked (AFAIK).
> 
> ... but there are many people who dream about swsusp for UMLinux.
> 
> Particularly some laptop users who want to suspend (at least the most
> critical long-running applications) and/or find Linux way too unstable
> and requiring frequent reboots.
> 
> The day UMLinux gets swsusp, I'm moving my XEmacs, mozilla and some
> other toys into a UML machine and staying there. Hopefully then a single
> problem with a USB driver, keventd running wild, or other frequently
> encountered breakage won't be taking my entire world down.

Well, then you may as well help porting swsusp to UML ;-).

OTOH, single problem with suspend *will* then bring your entire world
down :-(. You would be able to rollback, through.
								Pavel
-- 
When do you have a heart between your knees?
[Johanka's followup: and *two* hearts?]