Xref: utzoo comp.dcom.lans:7269 comp.protocols.tcp-ip.ibmpc:4924 comp.sys.ibm.pc.hardware:5569 comp.unix.xenix.misc:108 comp.unix.xenix.sco:1704
Path: utzoo!utgpu!watserv1!watmath!att!linac!uwm.edu!rpi!crdgw1!uunet!merk!brennan
From: brennan@merk.UUCP (Rich Brennan)
Newsgroups: comp.dcom.lans,comp.protocols.tcp-ip.ibmpc,comp.sys.ibm.pc.hardware,comp.unix.xenix.misc,comp.unix.xenix.sco
Subject: Re: 3c503 etherus interruptus
Message-ID: <4093@merk.UUCP>
Date: 16 Feb 91 04:01:13 GMT
References: <1991Feb3.225956.28698@m2xenix.psg.com>
Reply-To: brennan@merk.UUCP (Rich Brennan)
Organization: Technology Partners, Inc.
Lines: 33

In article <1991Feb3.225956.28698@m2xenix.psg.com> news@m2xenix.psg.com (Randy Bush) writes:
>Xenix (2.3.3 and TCP 1.0.1b with all the latest XNXs)
>
>When TCP is installed and configured, it runs just fine (name service,
>resolver, and all), but tty2a/tty2A is dead as a doornail while tty1a/1A is
>fine.  Note that tty2a uses Int-3, and tty1a uses Int-4.  The 3comB was
>configured (at device install time, mkdev 3comB) to use interrupt 2.

When I used a WD8003 on a Xenix system, the kernel I was running saw the
ethernet board at I/O address 0x280, and thought it was a TANDON multiport
board! From /usr/adm/messages:

%fpu      -		35	-	type=80387
%floppy   0x3F2-0x3F7	06	2	unit=0 type=96ds15
%floppy   -		-	-	unit=1 type=135ds18
%serial   0x3F8-0x3FF	04	-	unit=0 type=Standard nports=1
%serial   0x280-0x287	03	-	unit=1 type=TANDON nports=4
%parallel 0x3BC-0x3BE	07	-	unit=1

There went /dev/tty2* ("COM2"). If the board comes up defaulting to that
address, your Xenix may also see it as a TANDON board. Check /usr/adm/messages
for something like the above.

To solve it, what I did was to go into /usr/sys/io, and edit sioconf.c so
that any boards which had an address in that range, and deleted the line so
the kernel wouldn't auto configure that board.

I can't help you with the DOS problem, sorry.


Rich
-- 
brennan@merk.com	...!uunet!merk!brennan		Rich Brennan