Warning messages.

[Pete Chown]

zander@microweb.nl wrote:

> What if all pages which are 'freed' are zero filled. I.e. when the memory
> is no longer needed and/or the program is quit.
> 
> If this is done, the only time the machine is in risk, is the time the
> software runs. After which the memory is clear from the text, and the
> swap is cleared..

If there was a power failure at the wrong time you might have some left
over bits and pieces.  I suppose you could alleviate this to a great
extent by having something like fsck for swap spaces which would zero
them on bootup if there had been a "disorderly shutdown".

If your information is so secret that this matters, though, you probably
shouldn't be swapping at all!

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Pete Chown, email  pc@skygate.co.uk,       phone  +44 (0) 181 680 8393,
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