: From: Jonathan Stone <jonathan@DSG.Stanford.EDU>
>
> Simon Burg e writes:
> >Is a 486/66 with a 16450 fast enough to drive a 28k modem (with PPP)
> >under NetBSD 1.3.3?  The current machine is a 386/20 with a 16550
> >running NetBSD 1.1, and it gets _heaps_ of silo overflows.  I'm about to
> >upgrade a machine, but can't find a spare 16550 multi I/O card, and this
> >will save me going out to buy one.
> >
> >A _quick_ check of the port-i386 archives didn't seem to have an answer.
>
> I should hope so.  Linux can keep up with more than that even on a
> 486/33 with a 16450. And iirc, Linux on a Gateway handbook (486/66, 16450)
> could keep up with 115200.
>
> I hope NetBSD can keep up, but if it can't, we should bloody well fix it.

NetBSD 1.1?!

Anyway, this was fixed.

In 1.3 and NetBSD-current, Charles has fine-tuned the com and icu drivers
for blistering serial speed.

Install 1.3.x or a recent snapshot and your silo problems will go away.

	Ross.Harvey@Computer.Org