Subject: Another Serial Port Question
To: None <current-users@sun-lamp.cs.berkeley.edu>
From: Len Burns <lburns@cats.ucsc.edu>
List: current-users
Date: 07/29/1994 00:56:02
First, I must say i upgraded to current from 0.9b
using source supped on Sunday Jul 24 and the upgrade went with nothing more
than minor glitches. Very impressive the changes. I am running
current on a 66 mhz 486 16 megs ram and 4 16550a serial ports. I have
2 questions for those more leanred than I. First,I am using a ppp
line on tty01 set at 38400 baud with crtscts. It is working smoothly,
but when the load average on the system begins to rise, anything above
around .5 I begin receiving silo overflow messages. The machine
recovers fine, no crashes like it used to do but it does hamper
through put considerably. I am wondering about possible solutions to
this. I have considered a serial addaptor with more buffering and am
wondering if anyone has experience with such a device.
My second question is asked all to frequently here, but I still seem
unable to solve it. On tty02 I have a dial up modem. The ttys line
is
tty02 "/usr/libexec/getty std.38400" vt100 on rtscts
The associated gettytab entry is
std.38400|38400-baud:\
:sp#38400:np:
The modem answers normally, the login prompt comes up and the moment I
hit return after entering a login I get garbage. I have tried playing
with the com settings on the communications program I am using for a
terminal with no success. It is note worthy perhaps that tty00 is a
local line connected via a null modem cable to another machine that
acts as a terminal. This line performs admirably. The only
differenct is that it is at 57600 baud. Any suggestionws are highly
welcomed. I have endeavored to provide the critical information to
give the picture and am hoping I have not missed anything essential.
Thanks.
-Len
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