>I'll try building a 2.0G kernel with the 1.70 rev of this file and
>(assuming that works) confirm if this is related.

Ok, a kernel built from srcs as of Jul  2 15:25
but with if_wm.c v1.70 (1.71 commited May 16), works with wm0 on my
Thinkpad T41 ok.

Below is my dmesg output, which hopefully provides a clue.

--sjg

NetBSD 2.0G (THINKPAD) #1: Mon Jul  5 18:41:53 PDT 2004
	sjg@swift:/c/sjg/work/NetBSD/current/obj/i386/obj/c/sjg/work/NetBSD/current/src/sys/arch/i386/compile/THINKPAD
total memory = 510 MB
avail memory = 495 MB
BIOS32 rev. 0 found at 0xfd750
PCI BIOS rev. 2.1 found at 0xfd8d6
PCI IRQ Routing Table rev. 1.0 found at 0xfdea0, size 272 bytes (15 entries)
PCI Interrupt Router at 000:31:0 (Intel 82371FB PCI-to-ISA Bridge (PIIX) compatible)
pci_addr_fixup: 000:31:1 0x8086 0x24ca new address 0x00005800
pci_addr_fixup: 000:31:1 0x8086 0x24ca new address 0x00005808
pci_addr_fixup: 000:31:1 0x8086 0x24ca new address 0x00005810
pci_addr_fixup: 000:31:1 0x8086 0x24ca new address 0x0000580c
pci_addr_fixup: 000:31:1 0x8086 0x24ca new address 0x20000000
mainbus0 (root)
cpu0 at mainbus0: (uniprocessor)
cpu0: Intel Pentium M (Banias) (686-class), 598.09 MHz, id 0x695
cpu0: features a7e9f9bf<FPU,VME,DE,PSE,TSC,MSR,MCE,CX8,SEP,MTRR>
cpu0: features a7e9f9bf<PGE,MCA,CMOV,PAT,CFLUSH,DS,ACPI,MMX>
cpu0: features a7e9f9bf<FXSR,SSE,SSE2,TM,SBF>
cpu0: features2 180<EST,TM2>
cpu0: "Intel(R) Pentium(R) M processor 1600MHz"
cpu0: using thermal monitor 2
cpu0: Enhanced SpeedStep running at 600 MHz (956 mV)
cpu0: Enhanced SpeedStep frequencies available (MHz): 1600 1400 1200 1000 800 600
pnpbios0 at mainbus0: nodes 22, max len 246
pnpbios0: node index mismatch (static): requested 0, got 1
pckbc0 at pnpbios0 index 7 (PNP0303): kbd port
pckbc1 at pnpbios0 index 17 (IBM0057, attached as PNP0F13): aux port
lpt0 at pnpbios0 index 22 (PNP0400)
lpt0: io 3bc-3bf, irq 7
pckbd0 at pckbc0 (kbd slot)
pckbc0: using irq 1 for kbd slot
wskbd0 at pckbd0: console keyboard
pms0 at pckbc0 (aux slot)
pckbc0: using irq 12 for aux slot
wsmouse0 at pms0 mux 0
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: Intel 82855PM MCH Host Controller (rev. 0x03)
agp0 at pchb0: aperture at 0xd0000000, size 0x10000000
ppb0 at pci0 dev 1 function 0: Intel 82855PM Host-to-AGP Bridge (rev. 0x03)
pci1 at ppb0 bus 1
pci1: i/o space, memory space enabled
vga0 at pci1 dev 0 function 0: ATI Technologies Radeon Mobility M9 (rev. 0x02)
wsdisplay0 at vga0 kbdmux 1: console (80x25, vt100 emulation), using wskbd0
wsmux1: connecting to wsdisplay0
uhci0 at pci0 dev 29 function 0: Intel 82801DB/DBM USB UHCI Controller #1 (rev. 0x01)
uhci0: interrupting at irq 11
usb0 at uhci0: USB revision 1.0
uhub0 at usb0
uhub0: Intel UHCI root hub, class 9/0, rev 1.00/1.00, addr 1
uhub0: 2 ports with 2 removable, self powered
uhci1 at pci0 dev 29 function 1: Intel 82801DB/DBM USB UHCI Controller #2 (rev. 0x01)
uhci1: interrupting at irq 11
usb1 at uhci1: USB revision 1.0
uhub1 at usb1
uhub1: Intel UHCI root hub, class 9/0, rev 1.00/1.00, addr 1
uhub1: 2 ports with 2 removable, self powered
uhci2 at pci0 dev 29 function 2: Intel 82801DB/DBM USB UHCI Controller #3 (rev. 0x01)
uhci2: interrupting at irq 11
usb2 at uhci2: USB revision 1.0
uhub2 at usb2
uhub2: Intel UHCI root hub, class 9/0, rev 1.00/1.00, addr 1
uhub2: 2 ports with 2 removable, self powered
ehci0 at pci0 dev 29 function 7: Intel 82801DB/DBM USB EHCI Controller (rev. 0x01)
ehci0: interrupting at irq 11
ehci0: EHCI version 1.0
ehci0: companion controllers, 2 ports each: uhci0 uhci1 uhci2
usb3 at ehci0: USB revision 2.0
uhub3 at usb3
uhub3: Intel EHCI root hub, class 9/0, rev 2.00/1.00, addr 1
uhub3: 6 ports with 6 removable, self powered
ppb1 at pci0 dev 30 function 0: Intel 82801BAM Hub-to-PCI Bridge (rev. 0x81)
pci2 at ppb1 bus 2
pci2: i/o space, memory space enabled
cbb0 at pci2 dev 0 function 0: Texas Instruments PCI4520 PCI-CardBus Bridge w/ OHCI IEEE 1394 Controller (rev. 0x01)
cbb1 at pci2 dev 0 function 1: Texas Instruments PCI4520 PCI-CardBus Bridge w/ OHCI IEEE 1394 Controller (rev. 0x01)
wm0 at pci2 dev 1 function 0: Intel i82540EP 1000BASE-T Ethernet, rev. 3
wm0: interrupting at irq 11
wm0: 32-bit 33MHz PCI bus
wm0: 64 word (6 address bits) MicroWire EEPROM
wm0: Ethernet address 00:0d:60:8b:68:ab
makphy0 at wm0 phy 1: Marvell 88E1011 Gigabit PHY, rev. 4
makphy0: 10baseT, 10baseT-FDX, 100baseTX, 100baseTX-FDX, 1000baseT, 1000baseT-FDX, auto
ath0 at pci2 dev 2 function 0
ath0: interrupting at irq 11
ath0: mac 5.6 phy 4.1 5ghz radio 1.7 2ghz radio 2.3
ath0: 11a rates: 6Mbps 9Mbps 12Mbps 18Mbps 24Mbps 36Mbps 48Mbps 54Mbps
ath0: 11b rates: 1Mbps 2Mbps 5.5Mbps 11Mbps
ath0: 11g rates: 1Mbps 2Mbps 5.5Mbps 11Mbps 6Mbps 9Mbps 12Mbps 18Mbps 24Mbps 36Mbps 48Mbps 54Mbps
cbb0: interrupting at irq 11
cardslot0 at cbb0 slot 0 flags 0
cardbus0 at cardslot0: bus 3 device 0
pcmcia0 at cardslot0
cbb1: interrupting at irq 11
cardslot1 at cbb1 slot 1 flags 0
cardbus1 at cardslot1: bus 4 device 0
pcmcia1 at cardslot1
ichlpcib0 at pci0 dev 31 function 0
ichlpcib0: Intel 82801DB ISA Bridge (rev. 0x01)
ichlpcib0: TCO (watchdog) timer configured.
piixide0 at pci0 dev 31 function 1
piixide0: Intel 82801DBM IDE Controller (ICH4-M) (rev. 0x01)
piixide0: bus-master DMA support present
piixide0: primary channel wired to compatibility mode
piixide0: primary channel interrupting at irq 14
atabus0 at piixide0 channel 0
piixide0: secondary channel wired to compatibility mode
piixide0: secondary channel interrupting at irq 15
atabus1 at piixide0 channel 1
Intel 82801DB/DBM SMBus Controller (SMBus serial bus, revision 0x01) at pci0 dev 31 function 3 not configured
auich0 at pci0 dev 31 function 5: i82801DB/DBM (ICH4/ICH4M) AC-97 Audio
auich0: interrupting at irq 11
auich0: ac97: Analog Devices AD1981B codec; headphone, 20 bit DAC, no 3D stereo
auich0: ac97: ext id 601<AC97_22,AMAP,VRA>
Intel 82801DB/DBM AC97 Modem Controller (modem communications, revision 0x01) at pci0 dev 31 function 6 not configured
isa0 at ichlpcib0
pcppi0 at isa0 port 0x61
midi0 at pcppi0: PC speaker
spkr0 at pcppi0
sysbeep0 at pcppi0
npx0 at isa0 port 0xf0-0xff: using exception 16
fdc0 at isa0 port 0x3f0-0x3f7 irq 6 drq 2
apm0 at mainbus0: Power Management spec V1.2
auich0: measured ac97 link rate at 48004 Hz, will use 48000 Hz
audio0 at auich0: full duplex, mmap, independent
IPsec: Initialized Security Association Processing.
wd0 at atabus0 drive 0: <FUJITSU MHT2040AH>
wd0: drive supports 16-sector PIO transfers, LBA addressing
wd0: 34728 MB, 70559 cyl, 16 head, 63 sec, 512 bytes/sect x 71123954 sectors
wd0: 32-bit data port
wd0: drive supports PIO mode 4, DMA mode 2, Ultra-DMA mode 5 (Ultra/100)
wd0(piixide0:0:0): using PIO mode 4, Ultra-DMA mode 5 (Ultra/100) (using DMA data transfers)
atapibus0 at atabus1: 2 targets
cd0 at atapibus0 drive 0: <UJDA755zDVD/CDRW, , 1.20> cdrom removable
cd0: 32-bit data port
cd0: drive supports PIO mode 4, DMA mode 2, Ultra-DMA mode 2 (Ultra/33)
cd0(piixide0:1:0): using PIO mode 4, Ultra-DMA mode 2 (Ultra/33) (using DMA data transfers)
boot device: wd0
root on wd0a dumps on wd0b
root file system type: ffs
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)