Bug#343085: exim4: Exim SMTP_AUTH hangs since today...

[Marc Haber]

On Mon, Jan 30, 2006 at 10:16:57PM +0100, Sven Hartge wrote:
> Here is what I did:
> 
> 1) Downgraded exim4, exim4-base, exim4-config and exim4-daemon-heavy to 
>    the version from Sarge (4.50-8).
> 
> 2) Waited for the gnutls-params file to reappear.
> 
> 3) (in another ssh session)
>    while true; do cat /proc/sys/kernel/random/entropy_avail; sleep 0.2; 
>      done
> 
> 4) waited until the entropy pool refilled itself
> 
> 5) used an external server to send an encrypted mail to me:
> 
> 3368
> 3372
> 129
> 140
> 140

I can still reproduce this on current sid and have filed bug #448775
against libgnutls13.

However, this does _not_ block exim, I was able to send ten more
messages while entropy stayed firmly below 150. I suspect that current
gnutls has some safety measure that makes it use lesser quality
entropy after taking all of the good stuff.

Greetings
Marc

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