[Simh] trouble selecting VAX ethernet on CentOS

Michael L. Umbricht mike at umbricht.org
Sun Feb 26 13:04:23 EST 2012


I'm having a little trouble choosing the ethernet interface for a VAX in
SimH. My Dell Precision M6400 laptop has the following interfaces:

  0  eth0   ; on-board gig ethernet
  1  wlan0  ; on-board wireless
  2  virbr0 ; used by Virtual Box
  3  eth1   ; PCMCIA card w/ 10b2 or 10bT connectors

I'd really like to use the eth1 ThinWire interface to connect SimH with
a hardware VAX, while using eth0 for my internet connection. When I try
to connect to eth0 or eth1 I get a segmentation fault. If I try just
"eth" it works fine and connects to eth0. I can't get it to attach to
eth1, though. Choosing from the "at xq ?" menu also leads to a core
dump. Is there anything that I am missing here?

-mikeu

Retro-Computing Society of RI
http://rcsri.org

====================

Installed Packages
libpcap.x86_64                     14:1.0.0-6.20091201git117cb5.el6     
          @anaconda-CentOS-201106060106.x86_64/6.0
libpcap-devel.x86_64               14:1.0.0-6.20091201git117cb5.el6     
          @base                                   

======================

[mikeu at rigel BIN]$ cat /etc/redhat-release 
CentOS release 6.2 (Final)
[mikeu at rigel BIN]$ uname -a
Linux rigel 2.6.32-220.4.2.el6.centos.plus.x86_64 #1 SMP Mon Feb 13
23:42:47 GMT 2012 x86_64 x86_64 x86_64 GNU/Linux
[mikeu at rigel BIN]$ su
Password: 
[root at rigel BIN]# ./vax -v

VAX simulator V3.8-1
do> load -r ../VAX/ka655x.bin
do> attach nvr nvram.bin
NVR: buffering file in memory
do> set cpu 512m
do> set rq0 ra92
do> set rq1 ra92
do> set rq2 cdrom
do> set rq3 cdrom
do> attach rq0 vms73sys.dsk
do> attach rq1 vmsdata.dsk
do> attach -r rq2 vaxvms073.iso
RQ: unit is read only
do> attach -r rq3 hobbyistv1.iso
RQ: unit is read only
do> set dz 8b
do> attach -am dz 2020
Listening on port 2020 (socket 9)
Modem control activated
Auto disconnect activated
do> set cpu idle
do> set cpu conhalt
sim> show ver
VAX simulator V3.8-1 [64b data, 64b addresses, Ethernet support]
sim> show xq
XQ, address=20001920-2000192F, no vector, MAC=08:00:2B:AA:BB:CC,
type=DELQA, poll=100, not attached
sim> at xq ?
ETH devices:
  0  eth0   (No description available)
  1  wlan0  (No description available)
  2  virbr0 (No description available)
  3  eth1   (No description available)
Select device (ethX or <device_name>)? eth
Eth: opened eth0
Segmentation fault (core dumped)
[root at rigel BIN]# ./vax 

VAX simulator V3.8-1
NVR: buffering file in memory
RQ: unit is read only
RQ: unit is read only
Listening on port 2020 (socket 9)
Modem control activated
Auto disconnect activated
sim> at xq eth
Eth: opened eth0
sim> sh xq
XQ, address=20001920-2000192F, no vector, MAC=08:00:2B:AA:BB:CC,
type=DELQA, poll=100, attached to eth
sim> at xq wlan0
Eth: closed eth0
Eth: opened wlan0
sim> at xq eth1
Eth: closed wlan0
Segmentation fault (core dumped)
[root at rigel BIN]# 




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