On Fri, Apr 15, 2005 at 11:44:06AM +0200, Andreas Steinmetz wrote:
> Matt Mackall wrote:
> > Zero only the mlocked regions. This should take essentially no time at
> > all. Swsusp knows which these are because they have to be mlocked
> > after resume as well. If it's not mlocked, it's liable to be swapped
> > out anyway.
>
> Nitpicking:
> What happens if the disk decides to relocate a close to failing sector
> containing mlocked data during resume zeroing? This just means that
> there will be sensitive data around on the disk that can't be zeroed
> out anymore but which might be recovered by specialized
> companies/institutions.
> Encrypting these data in the first place reduces this problem to a
> single potentially problematic sector.
Well that's what the dmcrypt phase is for.
--
Mathematics is the supreme nostalgia of our time.
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