Trying out bridges... didn't have the working right, but this shouldn't panic.
soekris 4801 (probably doesn't matter)... very short.
OpenBSD 5.9 (GENERIC) #1561: Fri Feb 26 01:22:37 MST 2016
dera...@i386.openbsd.org:/usr/src/sys/arch/i386/compile/GENERIC
cpu0: Geode(TM) Integrated Processor by National Semi ("Geode by NSC"
586-class) 267 MHz
cpu0: FPU,TSC,MSR,CX8,CMOV,MMX
real mem = 133709824 (127MB)
avail mem = 118657024 (113MB)
mpath0 at root
scsibus0 at mpath0: 256 targets
mainbus0 at root
bios0 at mainbus0: date 20/41/06, BIOS32 rev. 0 @ 0xf7840
pcibios0 at bios0: rev 2.0 @ 0xf0000/0x10000
pcibios0: pcibios_get_intr_routing - function not supported
pcibios0: PCI IRQ Routing information unavailable.
pcibios0: PCI bus #0 is the last bus
bios0: ROM list: 0xc8000/0x9000
cpu0 at mainbus0: (uniprocessor)
cpu0: TSC disabled
pci0 at mainbus0 bus 0: configuration mode 1 (bios)
pchb0 at pci0 dev 0 function 0 "Cyrix GXm PCI" rev 0x00
sis0 at pci0 dev 6 function 0 "NS DP83815 10/100" rev 0x00, DP83816A: irq 10,
address 00:00:24:c1:55:48
nsphyter0 at sis0 phy 0: DP83815 10/100 PHY, rev. 1
sis1 at pci0 dev 7 function 0 "NS DP83815 10/100" rev 0x00, DP83816A: irq 10,
address 00:00:24:c1:55:49
nsphyter1 at sis1 phy 0: DP83815 10/100 PHY, rev. 1
sis2 at pci0 dev 8 function 0 "NS DP83815 10/100" rev 0x00, DP83816A: irq 10,
address 00:00:24:c1:55:4a
nsphyter2 at sis2 phy 0: DP83815 10/100 PHY, rev. 1
gscpcib0 at pci0 dev 18 function 0 "NS SC1100 ISA" rev 0x00
gpio0 at gscpcib0: 64 pins
"NS SC1100 SMI" rev 0x00 at pci0 dev 18 function 1 not configured
pciide0 at pci0 dev 18 function 2 "NS SCx200 IDE" rev 0x01: DMA, channel 0
wired to compatibility, channel 1 wired to compatibility
wd0 at pciide0 channel 0 drive 0: <SanDisk SDCFH-004G>
wd0: 1-sector PIO, LBA, 3825MB, 7835184 sectors
wd0(pciide0:0:0): using PIO mode 4
geodesc0 at pci0 dev 18 function 5 "NS SC1100 X-Bus" rev 0x00: iid 6 revision 3
wdstatus 0
ohci0 at pci0 dev 19 function 0 "Compaq USB OpenHost" rev 0x08: irq 11, version
1.0, legacy support
isa0 at gscpcib0
isadma0 at isa0
com0 at isa0 port 0x3f8/8 irq 4: ns16550a, 16 byte fifo
com0: console
com1 at isa0 port 0x2f8/8 irq 3: ns16550a, 16 byte fifo
pckbc0 at isa0 port 0x60/5 irq 1 irq 12
pckbd0 at pckbc0 (kbd slot)
wskbd0 at pckbd0: console keyboard
pcppi0 at isa0 port 0x61
spkr0 at pcppi0
nsclpcsio0 at isa0 port 0x2e/2: NSC PC87366 rev 9: GPIO VLM TMS
gpio1 at nsclpcsio0: 29 pins
gscsio0 at isa0 port 0x15c/2: SC1100 SIO rev 1:
npx0 at isa0 port 0xf0/16: reported by CPUID; using exception 16
usb0 at ohci0: USB revision 1.0
uhub0 at usb0 "Compaq OHCI root hub" rev 1.00/1.00 addr 1
vscsi0 at root
scsibus1 at vscsi0: 256 targets
softraid0 at root
scsibus2 at softraid0: 256 targets
root on wd0a (0ec5b95604b59274.a) swap on wd0b dump on wd0b
# ifconfig
lo0: flags=8049<UP,LOOPBACK,RUNNING,MULTICAST> mtu 32768
priority: 0
groups: lo
inet6 ::1 prefixlen 128
inet6 fe80::1%lo0 prefixlen 64 scopeid 0x5
inet 127.0.0.1 netmask 0xff000000
sis0: flags=8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> mtu 1500
lladdr 00:00:24:c1:55:48
priority: 0
media: Ethernet autoselect (10baseT half-duplex)
status: active
sis1: flags=8802<BROADCAST,SIMPLEX,MULTICAST> mtu 1500
lladdr 00:00:24:c1:55:49
priority: 0
media: Ethernet autoselect (100baseTX full-duplex)
status: active
sis2: flags=8802<BROADCAST,SIMPLEX,MULTICAST> mtu 1500
lladdr 00:00:24:c1:55:4a
priority: 0
media: Ethernet autoselect (100baseTX full-duplex)
status: active
enc0: flags=0<>
priority: 0
groups: enc
status: active
pppoe0: flags=8851<UP,POINTOPOINT,RUNNING,SIMPLEX,MULTICAST> mtu 1492
priority: 0
dev: sis0 state: session
sid: 0x7e9a PADI retries: 0 PADR retries: 0 time: 00:00:46
sppp: phase network authproto pap authname "espie@net8.nerim.nerim"
groups: pppoe
status: active
inet 213.41.150.167 --> 194.79.136.14 netmask 0xffffffff
pflog0: flags=141<UP,RUNNING,PROMISC> mtu 33192
priority: 0
groups: pflog
# ifconfig sis1 up
# ifconfig sis2 up
# ifconfig bridge0 add sis1 add sis2
lo0: flags=8049<UP,LOOPBACK,RUNNING,MULTICAST> mtu 32768
priority: 0
groups: lo
inet6 ::1 prefixlen 128
inet6 fe80::1%lo0 prefixlen 64 scopeid 0x5
inet 127.0.0.1 netmask 0xff000000
sis0: flags=8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> mtu 1500
lladdr 00:00:24:c1:55:48
priority: 0
media: Ethernet autoselect (10baseT half-duplex)
status: active
sis1: flags=8b43<UP,BROADCAST,RUNNING,PROMISC,ALLMULTI,SIMPLEX,MULTICAST> mtu
1500
lladdr 00:00:24:c1:55:49
priority: 0
media: Ethernet autoselect (100baseTX full-duplex)
status: active
sis2: flags=8b43<UP,BROADCAST,RUNNING,PROMISC,ALLMULTI,SIMPLEX,MULTICAST> mtu
1500
lladdr 00:00:24:c1:55:4a
priority: 0
media: Ethernet autoselect (100baseTX full-duplex)
status: active
enc0: flags=0<>
priority: 0
groups: enc
status: active
pppoe0: flags=8851<UP,POINTOPOINT,RUNNING,SIMPLEX,MULTICAST> mtu 1492
priority: 0
dev: sis0 state: session
sid: 0x7e9a PADI retries: 0 PADR retries: 0 time: 00:02:15
sppp: phase network authproto pap authname "espie@net8.nerim.nerim"
groups: pppoe
status: active
inet 213.41.150.167 --> 194.79.136.14 netmask 0xffffffff
pflog0: flags=141<UP,RUNNING,PROMISC> mtu 33192
priority: 0
groups: pflog
bridge0: flags=0<>
groups: bridge
priority 32768 hellotime 2 fwddelay 15 maxage 20 holdcnt 6 proto rstp
sis1 flags=3<LEARNING,DISCOVER>
port 2 ifpriority 0 ifcost 0
sis2 flags=3<LEARNING,DISCOVER>
port 3 ifpriority 0 ifcost 0
# dhclient bridge0
DHCPDISCOVER on uvm_fault(0xd32da0a0, 0x0, 0, 1) -> e
bridge0 - intervkal 3
ernel: page fault trap, code=0
Stopped at 0:uvm_fault(0xd32da0a0, 0x0, 0, 1) -> e
kernel: page fault trap, code=0
Stopped at db_read_bytes+0x17: movzbl 0(%esi,%ecx,1),%eax
ddb> trace
db_read_bytes(0,1,f1d20a00,0,f1d20a10) at db_read_bytes+0x17
db_get_value(0,1,0,0,d09ff6fa) at db_get_value+0x38
db_disasm(0,0,d03cbcb0,d03cbcd5,d09d36bc,f1d20ad0,0,0,f1d20ad0) at db_disasm+0x
31
db_print_loc_and_inst(0,f1d20ae8,f1d20af4,d03cbcd5,d09ff6eb) at db_print_loc_an
d_inst+0x3e
db_trap(6,0,58,0,f1d20b30) at db_trap+0x8d
kdb_trap(6,0,f1d20ba0,1,e) at kdb_trap+0xcc
trap() at trap+0x2a5
--- trap (number -752089856) ---
0xd1370000:
