Re: [PATCH 4/5] tsc: wire up entropy generation function

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On Tue, 2011-06-14 at 13:48 -0400, Kent Borg wrote:
> Matt Mackall wrote:
>  > Kent Borg wrote:
>  >>So network entropy is being eradicated, and nothing is being done to
>  >>replace it.
>  >
>  >Nothing is being done is a more accurate summary of the situation.
> 
> 
> So the feature-removal-schedule.txt entry about IRQF_SAMPLE_RANDOM is 
> obsolete?
> 
> (Then the trend from three network drivers to ten network drivers should 
> be accelerated and restore we should restore the deleted instances of 
> IRQF_SAMPLE_RANDOM??)
> 
> 
> -kb, the Kent who sees network adapter interrupt timing as a usually 
> good source of entropy.

It's a great source of potential entropy, a bad source of guaranteed
entropy. The current RNG tries to do accounting on the latter.
Accounting on the former is extremely suspect.

-- 
Mathematics is the supreme nostalgia of our time.


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