Not sure where to go with this. Maybe caused by servers having two NIC's, or 
running venus on the same host as server (yes, I've seen the advice against 
this - can't really help it)... two strikes and I'm out?
[domain name munged]

[root_at_aspen ~]# ls -l /coda
total 1
lrw-r--r--  1 root nfsnobody 14 Oct 15 14:47 example.com -> #@example.com
[root_at_aspen ~]# ctokens
Tokens held by the Cache Manager for root:
    @example.com
        Coda user id:    646
        Expiration time: Sun Oct 16 15:47:29 2005

[root_at_aspen ~]# cat /usr/coda/etc/console

Date: Sat 10/15/2005

14:47:03 Coda Venus, version 6.0.12
14:47:03 /usr/coda/LOG size is 1094612 bytes
14:47:03 /usr/coda/DATA size is 4378448 bytes
14:47:03 Initializing RVM data...
14:47:03 ...done
14:47:03 Loading RVM data
14:47:03 Starting RealmDB scan
14:47:03        Found 1 realms
14:47:03 starting VDB scan
14:47:03        0 volume replicas
14:47:03        0 replicated volumes
14:47:03        0 CML entries allocated
14:47:03        0 CML entries on free-list
14:47:03 starting FSDB scan (1666, 40000) (25, 75, 4)
14:47:03        0 cache files in table (0 blocks)
14:47:03        1666 cache files on free-list
14:47:04 starting HDB scan
14:47:04        0 hdb entries in table
14:47:04        0 hdb entries on free-list
14:47:04 Initial LRDB allocation
14:47:04 Mounting root volume...
14:47:04 Venus starting...
14:47:04 /coda now mounted.
***LWP (0x846ce00): Select returns error: 4

14:47:14 worker::main Got a bogus opcode 36
An address in realm 'example.com' resolved to unusable address '127.0.0.1', 
ignoring it
14:47:29 Resolved realm 'example.com'

Servers (oak and aspen) look OK : 

[root_at_aspen db]# getvolinfo aspen root
RPC2 connection to aspen:2432 successful.
Returned volume information for root
        VolumeId 7f000000
        Replicated volume (type 3)

        Type0 id 0
        Type1 id 0
        Type2 id 0
        Type3 id 7f000000
        Type4 id 0

        ServerCount 2
        Replica0 id 01000001, Server0 10.1.110.5
        Replica1 id 02000001, Server1 10.1.110.6
        Replica2 id 00000000, Server2 0.0.0.0
        Replica3 id 00000000, Server3 0.0.0.0
        Replica4 id 00000000, Server4 0.0.0.0
        Replica5 id 00000000, Server5 0.0.0.0
        Replica6 id 00000000, Server6 0.0.0.0
        Replica7 id 00000000, Server7 0.0.0.0

        VSGAddr 0

[root_at_oak ~]# getvolinfo aspen root
RPC2 connection to aspen:2432 successful.
Returned volume information for root
        VolumeId 7f000000
        Replicated volume (type 3)

        Type0 id 0
        Type1 id 0
        Type2 id 0
        Type3 id 7f000000
        Type4 id 0

        ServerCount 2
        Replica0 id 01000001, Server0 10.1.110.5
        Replica1 id 02000001, Server1 10.1.110.6
        Replica2 id 00000000, Server2 0.0.0.0
        Replica3 id 00000000, Server3 0.0.0.0
        Replica4 id 00000000, Server4 0.0.0.0
        Replica5 id 00000000, Server5 0.0.0.0
        Replica6 id 00000000, Server6 0.0.0.0
        Replica7 id 00000000, Server7 0.0.0.0

        VSGAddr 0

[root_at_aspen ~]# volutil getvolumelist
V_BindToServer: binding to host aspen.example.com
P/var/vicepa Haspen.example.com Tbe214c Fb98144
Wroot.0 I1000001 H1 P/var/vicepa m0 M0 U2 W1000001 C4351577d D4351577d B0 A0
GetVolumeList finished successfully

[root_at_oak ~]# volutil getvolumelist
V_BindToServer: binding to host oak.example.com
P/vicepa Hoak.example.com T2cd8ac F2c4684
Wroot I2000001 H2 P/vicepa m0 M0 U2 W2000001 C43515a55 D43515a55 B0 A0
GetVolumeList finished successfully