Workstation product kernel requirements

[Michael Ekstrand]

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On Wed, 6 Nov 2013 09:03:57 -0500
Josh Boyer <jwboyer-rxtnV0ftBwyoClj4AeEUq9i2O/JbrIOy at public.gmane.org>
wrote:
> >> > - an hibernation implementation that doesn't use the swap space
> >> > (interactivity
> >> >   sucking when there's a run-away process, or hibernation?
> >> > choose...)
> >>
> >> Please don't make us look at hibernate.  We cry.
> >
> > Until all laptops ship with firmware level hibernation (like Intel
> > Rapid Start), that's going to be a problem.
> 
> Is hibernation really used widely enough when compared to suspend?  In
> the not distant future, Intel chips will support Connected standby
> (low power idle) and make suspend mostly go away.  Hibernate is
> different, but if your machine can sit in idle for 2 weeks do you
> really need to write it out to disk?

There might be a chicken-and-egg problem here.  I, for one, don't use
hibernate because it is unreliable.  If it were more reliable, I would
be very interested in using it, because I use full-disk crypto and
it's the only way (I know of) to get a suspend-like state without my
keys still in memory.

An alternative solution to this particular problem, that would actually
meet my better, would be some mechanism whereby the kernel scrubs
LUKS keys on suspend and re-prompts on wakeup before resuming the
universe.

- - Michael

- -- 
Michael Ekstrand — http://elehack.net/
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