Here's my dmesg output. Thanks. :)

NetBSD 2.0 (GENERIC) #0: Tue Nov 30 21:54:11 UTC 2004
	builds@build:/big/builds/ab/netbsd-2-0-RELEASE/amd64/200411300000Z-obj/big/builds/ab/netbsd-2-0-RELEASE/src/sys/arch/amd64/compile/GENERIC
total memory = 511 MB
avail memory = 485 MB
mainbus0 (root)
mainbus0: Intel MP Specification (Version 1.4) (OEM00000 PROD00000000)
cpu0 at mainbus0: apid 0 (boot processor)
cpu0: AMD Athlon(tm) 64 Processor 3000+, 2009.89 MHz
cpu0: features: e7dbfbff<FPU,VME,DE,PSE,TSC,MSR,PAE,MCE,CX8,APIC,SEP,MTRR>
cpu0: features: e7dbfbff<PGE,MCA,CMOV,PAT,PSE36,MPC,NOX,MMXX,MMX>
cpu0: features: e7dbfbff<FXSR,SSE,SSE2,LONG,3DNOW2,3DNOW>
cpu0: I-cache 64 KB 64B/line 2-way, D-cache 64 KB 64B/line 2-way
cpu0: L2 cache 512 KB 64B/line 16-way
cpu0: ITLB 32 4 KB entries fully associative, 8 4 MB entries fully associative
cpu0: DTLB 32 4 KB entries fully associative, 8 4 MB entries fully associative
cpu0: calibrating local timer
cpu0: apic clock running at 200 MHz
cpu0: 8 page colors
mpbios: bus 0 is type PCI   
mpbios: bus 1 is type PCI   
mpbios: bus 2 is type PCI   
mpbios: bus 3 is type ISA   
ioapic0 at mainbus0 apid 2 (I/O APIC)
ioapic0: pa 0xfec00000, version 11, 24 pins
pci0 at mainbus0 bus 0: configuration mode 1
pci0: i/o space, memory space enabled, rd/line, rd/mult, wr/inv ok
pchb0 at pci0 dev 0 function 0
pchb0: Nvidia Corporation product 0x00e1 (rev. 0xa1)
pcib0 at pci0 dev 1 function 0
pcib0: Nvidia Corporation product 0x00e0 (rev. 0xa2)
Nvidia Corporation product 0x00e4 (SMBus serial bus, revision 0xa1) at
pci0 dev 1 function 1 not configured
ohci0 at pci0 dev 2 function 0: Nvidia Corporation product 0x00e7 (rev. 0xa1)
ohci0: interrupting at ioapic0 pin 3 (irq 3)
ohci0: OHCI version 1.0, legacy support
usb0 at ohci0: USB revision 1.0
uhub0 at usb0
uhub0: Nvidia Corporat OHCI root hub, class 9/0, rev 1.00/1.00, addr 1
uhub0: 4 ports with 4 removable, self powered
ohci1 at pci0 dev 2 function 1: Nvidia Corporation product 0x00e7 (rev. 0xa1)
ohci1: interrupting at ioapic0 pin 3 (irq 3)
ohci1: OHCI version 1.0, legacy support
usb1 at ohci1: USB revision 1.0
uhub1 at usb1
uhub1: Nvidia Corporat OHCI root hub, class 9/0, rev 1.00/1.00, addr 1
uhub1: 4 ports with 4 removable, self powered
Nvidia Corporation product 0x00e8 (USB serial bus, interface 0x20,
revision 0xa2) at pci0 dev 2 function 2 not configured
Nvidia Corporation product 0x00df (miscellaneous bridge, revision
0xa2) at pci0 dev 5 function 0 not configured
Nvidia Corporation product 0x00ea (audio multimedia, revision 0xa1) at
pci0 dev 6 function 0 not configured
pciide0 at pci0 dev 8 function 0
pciide0: Nvidia Corporation product 0x00e5 (rev. 0xa2)
pciide0: bus-master DMA support present, but unused (no driver support)
pciide0: primary channel configured to compatibility mode
pciide0: primary channel interrupting at ioapic0 pin 14 (irq 14)
atabus0 at pciide0 channel 0
pciide0: secondary channel configured to compatibility mode
pciide0: secondary channel interrupting at ioapic0 pin 15 (irq 15)
atabus1 at pciide0 channel 1
pciide1 at pci0 dev 10 function 0
pciide1: Nvidia Corporation product 0x00e3 (rev. 0xa2)
pciide1: bus-master DMA support present, but unused (no driver support)
pciide1: primary channel wired to native-PCI mode
pciide1: using ioapic0 pin 11 (irq 11) for native-PCI interrupt
atabus2 at pciide1 channel 0
pciide1: secondary channel wired to native-PCI mode
atabus3 at pciide1 channel 1
ppb0 at pci0 dev 11 function 0: Nvidia Corporation product 0x00e2 (rev. 0xa2)
pci1 at ppb0 bus 1
pci1: i/o space, memory space enabled
vga0 at pci1 dev 0 function 0: ATI Technologies product 0x4153 (rev. 0x00)
wsdisplay0 at vga0 kbdmux 1: console (80x25, vt100 emulation)
wsmux1: connecting to wsdisplay0
ATI Technologies product 0x4173 (miscellaneous display) at pci1 dev 0
function 1 not configured
ppb1 at pci0 dev 14 function 0: Nvidia Corporation product 0x00ed (rev. 0xa2)
pci2 at ppb1 bus 2
pci2: i/o space, memory space enabled
ex0 at pci2 dev 7 function 0: 3Com 3c905B-TX 10/100 Ethernet (rev. 0x64)
ex0: interrupting at ioapic0 pin 19 (irq 12)
ex0: MAC address 00:50:04:87:68:e2
bmtphy0 at ex0 phy 24: Broadcom 3c905B internal PHY, rev. 0
bmtphy0: 10baseT, 10baseT-FDX, 100baseTX, 100baseTX-FDX, auto
VIA Technologies VT3606 OHCI IEEE 1394 Controller (Firewire serial
bus, interface 0x10, revision 0x80) at pci2 dev 11 function 0 not
configured
pchb1 at pci0 dev 24 function 0
pchb1: Advanced Micro Devices AMD64 HyperTransport configuration (rev. 0x00)
pchb2 at pci0 dev 24 function 1
pchb2: Advanced Micro Devices AMD64 Address Map configuration (rev. 0x00)
pchb3 at pci0 dev 24 function 2
pchb3: Advanced Micro Devices AMD64 DRAM configuration (rev. 0x00)
pchb4 at pci0 dev 24 function 3
pchb4: Advanced Micro Devices AMD64 Miscellaneous configuration (rev. 0x00)
isa0 at pcib0
lpt0 at isa0 port 0x378-0x37b irq 7
com0 at isa0 port 0x3f8-0x3ff irq 4: ns16550a, working fifo
pckbc0 at isa0 port 0x60-0x64
pckbd0 at pckbc0 (kbd slot)
pckbc0: using irq 1 for kbd slot
wskbd0 at pckbd0: console keyboard, using wsdisplay0
pcppi0 at isa0 port 0x61
midi0 at pcppi0: PC speaker
sysbeep0 at pcppi0
fdc0 at isa0 port 0x3f0-0x3f7 irq 6 drq 2
ioapic0: enabling
fd0 at fdc0 drive 0: 1.44MB, 80 cyl, 2 head, 18 sec
Kernelized RAIDframe activated
wd0 at atabus0 drive 0: <SAMSUNG SV3012H>
wd0: drive supports 16-sector PIO transfers, LBA addressing
wd0: 28667 MB, 58246 cyl, 16 head, 63 sec, 512 bytes/sect x 58711968 sectors
wd0: drive supports PIO mode 4, DMA mode 2, Ultra-DMA mode 5 (Ultra/100)
wd1 at atabus0 drive 1: <MAXTOR 6L080J4>
wd1: drive supports 16-sector PIO transfers, LBA addressing
wd1: 76345 MB, 155114 cyl, 16 head, 63 sec, 512 bytes/sect x 156355584 sectors
wd1: drive supports PIO mode 4, DMA mode 2, Ultra-DMA mode 6 (Ultra/133)
atapibus0 at atabus1: 2 targets
cd0 at atapibus0 drive 0: <HL-DT-ST GCE-8321B, , 1.04> cdrom removable
cd0: drive supports PIO mode 4, DMA mode 2
uhidev0 at uhub1 port 1 configuration 1 interface 0
uhidev0: Logitech USB-PS/2 Optical Mouse, rev 2.00/11.10, addr 2, iclass 3/1
ums0 at uhidev0: 3 buttons and Z dir.
wsmouse0 at ums0 mux 0
boot device: wd0
root on wd0a dumps on wd0b
root file system type: ffs
ex0: device timeout
ex0: device timeout
ex0: device timeout
ex0: device timeout
ex0: device timeout
ex0: device timeout
wsdisplay0: screen 1 added (80x25, vt100 emulation)
wsdisplay0: screen 2 added (80x25, vt100 emulation)
wsdisplay0: screen 3 added (80x25, vt100 emulation)
wsdisplay0: screen 4 added (80x25, vt100 emulation)
ex0: device timeout


On Sun, 16 Jan 2005 05:23:27 +0100, Frank van der Linden
<fvdl@netbsd.org> wrote:
> On Sun, Jan 16, 2005 at 01:07:23PM +0900, Woo-il Song wrote:
> > I installed 2.0(amd64). After reboot, I got a message, "ex0: device
> > timeout" and can't get an IP adress. I tried other OSes(Windows,
> > Linux, FreeBSD), it(NIC) works on them.
> 
> Sounds like it's not getting any interrupts. Can you send the output
> of the dmesg command?
> 
> - Frank
>