>I have a 5000/260 and am trying to get the serial port running
>at a fast speed. I know it can do 38.4 but ftp throughput shows
>me getting ~1300 baud (and I get a few silo overflow errors).
>Anything I can do?

Hi,

NetBSD 1.3.1 doesn't support the 38400 mode on 3maxes.. I'm not even
sure it supports 19.200 (which is actually 19800 on the dc7085 and DZ-11s.)

The reason is that there's a hardware bit in the motherboard control
register. When the bit is set, the per-line 19800 speed setting
is externallly rewired to an external clock which provides 38400.
So trying to set 38400 clobbers any ports on the almost-19200 setting.

So far, the advice I've had is that the pmax/3max serial ports is a
relatively low priority.  If you think this needs fixing for 1.3.2 (or
1.3.3), please send in a change-request PR, and it'll get treated more
urgently.

--Jonathan