[Opendnssec-user] ods-signerd calling vmstat?!?

Rickard Bellgrim rickard at opendnssec.org
Wed Sep 4 23:25:09 CEST 2013

> > Also, if earlier polls (eg /dev/random or EGD) succeed, then we
> > will never query these sources at all, as spawning off all
> > these processes is quite slow, so we avoid it except in cases
> > where it is necessary due to lack of other options.
> Ref. above, I'm still seeing these messages, indicating that
> either the Botan library didn't get the required bits from
> /dev/random or /dev/urandom (which should in itself be an
> inexhaustible source of pseudo-random bits), or this statement
> isn't quite correct for the version I'm using.
> My botan package is version 1.8.14 (which could possibly stand an
> update to at least something 1.10ish).

I might see an issue in the Botan code. I will verify this with Jack, but
the issue might be that it breaks out from the for-loop in the
Device_EntropySource, even if the polling goal is not fulfilled. When
reading from /dev/random, you might not get all bytes as you requested.
When returning from the Device_EntropySource, the RNG will notice this and
continue to the next entropy source type. Thus not even trying the

// Rickard
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