Lo and behold, Kevin Day once said:
>
>
> I don't think MADV_FREE is what I want, since it makes my memory go away
> very quickly, *and* I have no way of knowing that the kernel did it.
You do have a way of knowing the kernel did it - your memory is
suddenly full of zeros. You don't have an *asynchronous* way of knowing
that the kernel did it, however, which I believe is more what you're
aiming at. (Something like a "SIG_I_STOLE_YOUR_MEMORY"), no?
-Dave
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