Matt Mackall wrote:
> [network adapters are] 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.
So we need a patch that:
- Deletes the IRQF_SAMPLE_RANDOM mention in feature-removal-schedule.txt,
- Restores instances of IRQF_SAMPLE_RANDOM in drivers, and
- Changes the credit_entropy_bits() to credit less entropy*.
* The code seems to only handle integer values of entropy. Maybe
when crediting, choose between 1 and 0 credits.
Then once that kernel makes it into the field, a bunch of entropy
starved machines will no longer be entropy starved. A few machines that
are run by people who worship an entropy estimate will still have to
install mice and users, explicit RNGs, etc., but entropy will flow.
Make sense?
-kb
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