Re: What exactly is the need to have swappable and non swappable pages

MAx wrote:
What is the need of having non swappable pages?

You can't put the code that handles swapping into swappable pages itself.
Also, you shouldn't put code that needs to fulfill some realtime
requirements into swappable pages if swapping in would be too slow.

What is the disadvantage of *NOT* having non swappable pages?
Is there any problem if Non Swappable pages were to be made
swappable...?

Some security-sensitive applications put private data into non-swappable
pages in order to not have them swapped to an unencrypted swap file.

Uli

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