Hmm you got it wrong, I'm saying that my only "interrupt generating hardware" was NOT contributing to the entropy. I mean, the timer (OF COURSE NOT) and the NICs (same) but why don't the DAC960???I have a server that runs kernel 2.6.9, some web and monitoring
services, it's connected to two different networks with two different
network cards, and somehow a php developer discovered that /dev/random
wasn't giving any entropy to him (O_O) so i checked it out...
[...]
As you may see my only sources of entropy where the timer, eth0, eth1
and the DAC960.
I doubt that timer and eth* are a non-predictable source. As such, they should
not contribute to the entropy. Better is the keyboard and/or mouse. SSH traffic
is network traffic, and if you send it to a network card, you can expect an
interrupt at <time>... prdictable.
Jan Engelhardt