Date: Mon, 22 May 2006 11:29:15 +0200
From: Pavel Machek <pavel@ucw.cz>
To: Pau Garcia i Quiles <pgquiles@elpauer.org>
Cc: linux-kernel@vger.kernel.org
Subject: Re: [IDEA] Poor man's UPS
Message-ID: <20060522092915.GA25624@elf.ucw.cz>
References: <200605212131.47860.pgquiles@elpauer.org>
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Hi!

> This is an idea a had some time ago. It might be a waste of time or it might 
> be a good idea, you decide.

Well, it depends on "are you willing to work on it"?

> The "continuous hibernation" is some kind of memory snapshots taken, say, 
> every 5 minutes. The next time your system starts after a crash, it'd say "oh 
> oh, looks like something went wrong" and offer you a list of the last N (for 
> instance, 4) snapshots and you can recover your system to the very same state 
> it was before power went off or your dog unplugged your CPU. It might even 
> ask you which individual applications you want to start from that snapshot:  
> maybe you don't want to start Quake 3.

See suspend.sf.net and probably dm snapshotting functionality. Most of
what you want can be done today, and in userspace.
									Pavel
-- 
(english) http://www.livejournal.com/~pavelmachek
(cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html
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