Message-ID: <44717424.4020705@argo.co.il>
Date: Mon, 22 May 2006 11:19:48 +0300
From: Avi Kivity <avi@argo.co.il>
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To: Michael Buesch <mb@bu3sch.de>
CC: Pau Garcia i Quiles <pgquiles@elpauer.org>, linux-kernel@vger.kernel.org
Subject: Re: [IDEA] Poor man's UPS
References: <200605212131.47860.pgquiles@elpauer.org> <20060521193803.GG8250@redhat.com> <200605212146.30342.mb@bu3sch.de>
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Michael Buesch wrote:
>>  > 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 
>>     
>
> You really want a system, which freezes for 10-20 seconds every 5 minutes,
> and thaws again when the image is written?
>   

The snapshot could be taken in the background, by marking all pages 
read-only, starting a thread to write them to disk, and continuing 
normal processing.

Such systems have been implemented in the past, see for example 
http://www.eros-os.org/.

-- 
error compiling committee.c: too many arguments to function

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