Old laptop not able to get enough entropy in FreeBSD 11

[Bertram Scharpf]

On Friday, 25. Nov 2016, 18:31:24 -0800, Jack L. wrote:
> >> > I have an old single core AMD Turion ML-37 laptop that has nothing
> >> > installed. When I boot it up, the moment it displays login:, it hangs
> >> > until i press some random keys. At shutdown, it will hang until I
> >> > press keys and it will not move onto the next line of shutdown until
> >> > I keep pressing keys.
> >> >
> >> > If I cat /dev/random > ./dev/null while using the laptop, it works
> >> > fine but when nothing is happening, the laptop hangs. Any ideas? It's
> >> > running 11.0-STABLE
> >
> > Any ideas on why the laptop would have that behavior in 11? It didn't hang
> > at all in 10.3-STABLE
> >
> >>
> >> I just installed 12-CURRENT on the laptop and it also hangs even at
> install/boot/shutdown until I hit keys, then it will move as long as I
> continue to hit keys. I also found that if I ping the laptop, it will
> respond but in between pings, it will hang. Using FreeBSD 10.3, it works
> perfectly fine without any random keypresses. Any ideas?

I'm convinced this behaviour it worth being analysed.

Can you gain any knowlegde by calling cat through truss?

Bertram


-- 
Bertram Scharpf
Stuttgart, Deutschland/Germany
http://www.bertram-scharpf.de