Re: RFC: Self-snapshotting in Linux

From: Ben Nizette
Date: Wed Apr 16 2008 - 05:49:22 EST



On Wed, 2008-04-16 at 16:44 +0800, Peter Teoh wrote:
> Essentially, to reiterate the key idea: able to snapshot the current
> kernel+userspace permanent.....restore from another snapshot....and
> then switch back again if needed etc.....will the implementation be
> difficult...if not impossible????
>

As I see it the main thing is that VMWare doesn't have to worry about
trying to put hardware in to (and pull out of) low power modes. VMWare
hardware is never left in an undefined state by poorly written drivers
etc.

I think hibernation is about what you want; snapshotting as you describe
it should fall down for about the same reasons :-)

--Ben.
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