sio driver sucks

[O. Hartmann]

Sergey Matveychuk wrote:
> Do you know an old sio driver is hardly usable?
>
> There are many silo overflows, working with a terminal device is a
> nightmare. There was a report about one crash with a message about a
> spinlock holed more than 5 seconds (there is no core dump because it has
> not repeated).
>
> After a discussion in a Russian FIDO group I've change it on uart and
> the problems gone.
>
> I think a default driver should be changed from sio to uart until it
> will be fixed.
>   

Had those overflows many times when I used FreeBSD 6.0-STABLE,
6.1-STABLE and a modem.
But this never had a so bad influence forcing me into using uart.

Regards,
Oliver