Re: [PATCH] drivers/net: remove network drivers' last few uses ofIRQF_SAMPLE_RANDOM

From: Kok, Auke
Date: Fri May 16 2008 - 14:42:38 EST

Alan Cox wrote:
>> So what is one to do if a few applications want to read from /dev/random
>> but you have no excellent source of entropy on the system? Wait
>> forever?
> Yes.
> If they don't need that level of security they can use /dev/urandom.
> Piping network randomness into /dev/urandom is probably quite sensible
> but not into /dev/random.

I remember Jesse telling that he had this very same experience while installing a
RH box on a headless system with a serial console - a box prompted the user to
rattle a keyboard in order for the ssh key generation to continue :)

you absolutely don't want to use urandom for that I assume, but if the system just
sits dead waiting for randomness, and you can't see the popup asking for some
entropy, you're pretty much screwed :)


To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at
Please read the FAQ at