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    SubjectRe: [PATCH] (0/4) Entropy accounting fixes

    On Sat, 17 Aug 2002, Oliver Xymoron wrote:
    >
    > Let me clarify that 2-5 orders thing. The kernel trusts about 10 times
    > as many samples as it should, and overestimates each samples' entropy
    > by about a factor of 10 (on x86 with TSC) or 1.3 (using 1kHz jiffies).

    Lookin gat the code, your _new_ code just throws samples away _entirely_
    just because some random event hasn't happened (the first thing I noticed
    was the context switch testing, there may be others there that I just
    didn't react to).

    In short, you seem to cut those random events to _zero_. And this happens
    under what seems to be perfectly realistic loads. That's not trying to fix
    things, that's just breaking them.

    > The patches will be a nuisance for anyone who's currently using
    > /dev/random to generate session keys on busy SSL servers.

    No, it appears to be a nuisanse even for people who have real issues, ie
    just generating _occasional_ numbers on machines that just don't happen to
    run much user space programs.

    Linus

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