watchdog timeout with nfe(4)

[Eli Green]

On 2006-10-22, Eli Green wrote:
Hey all,

I'm having problems with the onboard ethernet on a new motherboard (ASUS
A8N-VM CSM) which is the GeForce 6150 / nForce 430 combination board. I
think that's an "MCP51". The card is only connected to an ADSL modem
with a 10baseT port. Nothing fancy.
Here we go, first is dmesg and then is some errors I get with
hw.nfe0.debug enabled when I try to config the interface.
There are a couple of devices grabbing irq 7, I don't know if that could
be a problem or not. I'm not sure what the deal is with pci0 showing up
being initialized a second time being described as a USB controller.
Copyright (c) 2003, 2004, 2005, 2006 The DragonFly Project.
Copyright (c) 1992-2003 The FreeBSD Project.
Copyright (c) 1979, 1980, 1983, 1986, 1988, 1989, 1991, 1992, 1993, 1994
	The Regents of the University of California. All rights reserved.
DragonFly 1.7.0-PREVIEW #1: Sun Oct 22 01:20:57 GMT 2006
   root at tenderfoot:/usr/src/sys/compile/TENDERFOOT
TSC clock: 1808247096 Hz, i8254 clock: 1193193 Hz
CPU: AMD Opteron(tm) Processor 144 (1808.24-MHz 686-class CPU)
 Origin = "AuthenticAMD"  Id = 0x20f71  Stepping = 1
 Features=0x78bfbff<FPU,VME,DE,PSE,TSC,MSR,PAE,MCE,CX8,APIC,SEP,MTRR,PGE,MCA,CMOV,PAT,PSE36,CLFLUSH,MMX,FXSR,SSE,SSE2>
 AMD Features=0xe0500000<<b20>,AMIE,<b29>,DSP,3DNow!>
real memory  = 939261952 (917248K bytes)
avail memory = 904695808 (883492K bytes)
CCMSINIT
Preloaded elf kernel "/kernel" at 0xc048e000.
Preloaded elf module "/modules/acpi.ko" at 0xc048e260.
sched_ithd: stray interrupt 7
Pentium Pro MTRR support enabled
md0: Malloc disk
pcibios: BIOS version 3.00
Using $PIR table, 16 entries at 0xc00f89e0
sched_ithd: stray interrupt 7
npx0: <math processor> on motherboard
npx0: INT 16 interface
Using XMM optimized bcopy/copyin/copyout
acpi0: <A M I OEMXSDT> on motherboard
acpi0: Power Button (fixed)
Warning: ACPI is disabling APM's device.  You can't run both
acpi_timer0: <24-bit timer at 3.579545MHz> port 0x508-0x50b on acpi0
cpu0: <ACPI CPU> on acpi0
acpi_button0: <Power Button> on acpi0
compare 0
compare 0
compare 0
legacypci0 on motherboard
pcib0: <Host to PCI bridge> on legacypci0
pci0: <PCI bus> on pcib0
pci0: <unknown card> (vendor=0x10de, dev=0x02f0) at 0.0
pci0: <unknown card> (vendor=0x10de, dev=0x02fa) at 0.1
pci0: <unknown card> (vendor=0x10de, dev=0x02fe) at 0.2
pci0: <unknown card> (vendor=0x10de, dev=0x02f8) at 0.3
pci0: <unknown card> (vendor=0x10de, dev=0x02f9) at 0.4
pci0: <unknown card> (vendor=0x10de, dev=0x02ff) at 0.5
pci0: <unknown card> (vendor=0x10de, dev=0x027f) at 0.6
pci0: <unknown card> (vendor=0x10de, dev=0x027e) at 0.7
pcib1: <PCI to PCI bridge (vendor=10de device=02fc)> at device 2.0 on pci0
pci1: <PCI bus> on pcib1
pcib2: <PCI to PCI bridge (vendor=10de device=02fd)> at device 3.0 on pci0
pci2: <PCI bus> on pcib2
pcib3: <PCI to PCI bridge (vendor=10de device=02fb)> at device 4.0 on pci0
pci3: <PCI bus> on pcib3
pci0: <NVidia model 0240 graphics accelerator> at 5.0 irq 11
pci0: <unknown card> (vendor=0x10de, dev=0x0270) at 9.0
isab0: <PCI to ISA bridge (vendor=10de device=0260)> at device 10.0 on pci0
isa0: <ISA bus> on isab0
pci0: <unknown card> (vendor=0x10de, dev=0x0264) at 10.1 irq 5
ohci0: <OHCI (generic) USB controller> mem 0xfebde000-0xfebdefff irq 5 at device 11.0 on pci0
usb0: OHCI version 1.0, legacy support
sched_ithd: stray interrupt 7
usb0: SMM does not respond, resetting
usb0: <OHCI (generic) USB controller> on ohci0
usb0: USB revision 1.0
uhub0: nVidia OHCI root hub, class 9/0, rev 1.00/1.00, addr 1
uhub0: 8 ports with 8 removable, self powered
ums0: Logitech USB-PS/2 Optical Mouse, rev 2.00/18.00, addr 2, iclass 3/1
ums0: 6 buttons and Z dir.
ukbd0: Logitech Logitech USB Keyboard, rev 1.10/15.00, addr 3, iclass 3/1
kbd0 at ukbd0
uhid0: Logitech Logitech USB Keyboard, rev 1.10/15.00, addr 3, iclass 3/0
pci0: <USB controller> at 11.1 irq 7
atapci0: <Generic PCI ATA controller> port 0xffa0-0xffaf at device 13.0 on pci0
ata0: at 0x1f0 irq 14 on atapci0
ata1: at 0x170 irq 15 on atapci0
atapci1: <Generic PCI ATA controller> port 0xe000-0xe00f,0xe080-0xe083,0xe400-0xe407,0xe480-0xe483,0xe800-0xe807 mem 0xfebdd000-0xfebddfff irq 11 at device 14.0 on pci0
ata2: at 0xe800 on atapci1
ata3: at 0xe400 on atapci1
pcib4: <PCI to PCI bridge (vendor=10de device=026f)> at device 16.0 on pci0
pci4: <PCI bus> on pcib4
fwohci0: <VIA Fire II (VT6306)> port 0xcc00-0xcc7f mem 0xfaaff800-0xfaafffff irq 5 at device 5.0 on pci4
fwohci0: OHCI version 1.0 (ROM=1)
fwohci0: No. of Isochronous channel is 4.
fwohci0: EUI64 00:11:d8:00:00:91:95:21
fwohci0: Phy 1394a available S400, 2 ports.
fwohci0: Link S400, max_rec 2048 bytes.
firewire0: <IEEE1394(FireWire) bus> on fwohci0
sbp0: <SBP-2/SCSI over FireWire> on firewire0
fwe0: <Ethernet over FireWire> on firewire0
fwe0: MAC address: 02:11:d8:91:95:21
fwohci0: Initiate bus reset
fwohci0: node_id=0xc800ffc0, gen=1, CYCLEMASTER mode
firewire0: 1 nodes, maxhop <= 0, cable IRM = 0 (me)
firewire0: bus manager 0 (me)
pci0: <unknown card> (vendor=0x10de, dev=0x026c) at 16.1 irq 5
pci0: <PCI to Other bridge (vendor=10de device=0269)> at 20.0 irq 7
pmtimer0 on isa0
vga0: <Generic ISA VGA> at port 0x3c0-0x3df iomem 0xa0000-0xbffff on isa0
sc0: <System console> at flags 0x100 on isa0
sc0: VGA <16 virtual consoles, flags=0x300>
sched_ithd: stray interrupt 7
ad4: DMA limited to UDMA33, non-ATA66 cable or device
ad4: 114473MB <ST3120026AS> [232581/16/63] at ata2-master BIOSDMA
acd0: DVD-R <LITE-ON DVDRW LDW-451S> at ata0-master PIO4
Mounting root from ufs:/dev/ad4s2a
cd0 at ata0 bus 0 target 0 lun 0
cd0: <LITE-ON DVDRW LDW-451S GSBC> Removable CD-ROM SCSI-0 device 
cd0: 16.000MB/s transfers
cd0: Attempt to query device size failed: NOT READY, Medium not present

Here I kldload if_nfe:

nfe0: <NVIDIA MCP51 Gigabit Ethernet> port 0xdc00-0xdc07 mem 0xfebdc000-0xfebdcfff irq 7 at device 20.0 on pci0
nfe0: MAC address: 00:17:31:51:25:39
miibus0: <MII bus> on nfe0
e1000phy0: <Marvell 88E1111 Gigabit PHY> on miibus0
e1000phy0:  1000baseTX-FDX, 100baseTX-FDX, 100baseTX, 10baseTX-FDX, 10baseTX, auto
Here I try to ifconfig the card:

nfe0: mii read phy 1 reg 0x1 ret 0x7949
# repeated many, many times
nfe0: mii read phy 1 reg 0x1 ret 0x7949
nfe0: mii read phy 1 reg 0x1 ret 0x796d
nfe0: mii read phy 1 reg 0x1 ret 0x796d
nfe0: mii read phy 1 reg 0x1 ret 0x796d
nfe0: mii read phy 1 reg 0x1 ret 0x796d
nfe0: mii read phy 1 reg 0xf ret 0x3000
nfe0: mii read phy 1 reg 0x0 ret 0x1000
nfe0: mii read phy 1 reg 0x11 ret 0xd00
nfe0: mii read phy 1 reg 0x13 ret 0xc00
nfe0: mii read phy 1 reg 0x4 ret 0xde0
nfe0: mii read phy 1 reg 0x5 ret 0x21
nfe0: nfe_intr: interrupt register 60
nfe0: link state changed 
nfe0: mii read phy 1 reg 0x1 ret 0x796d
nfe0: mii read phy 1 reg 0x1 ret 0x796d
nfe0: mii read phy 1 reg 0x1 ret 0x796d
nfe0: mii read phy 1 reg 0x1 ret 0x796d
nfe0: mii read phy 1 reg 0xf ret 0x3000
nfe0: mii read phy 1 reg 0x0 ret 0x1000
nfe0: mii read phy 1 reg 0x11 ret 0xd00
nfe0: mii read phy 1 reg 0x13 ret 0x0
nfe0: mii read phy 1 reg 0x4 ret 0xde0
nfe0: mii read phy 1 reg 0x5 ret 0x21
nfe0: mii read phy 1 reg 0x1 ret 0x796d
nfe0: mii read phy 1 reg 0x1 ret 0x796d
nfe0: mii read phy 1 reg 0x1 ret 0x796d
nfe0: mii read phy 1 reg 0x1 ret 0x796d
nfe0: mii read phy 1 reg 0xf ret 0x3000
nfe0: mii read phy 1 reg 0x0 ret 0x1000
nfe0: mii read phy 1 reg 0x11 ret 0xd00
nfe0: mii read phy 1 reg 0x13 ret 0x0
nfe0: mii read phy 1 reg 0x4 ret 0xde0
nfe0: mii read phy 1 reg 0x5 ret 0x21
nfe0: mii read phy 1 reg 0x1 ret 0x796d
nfe0: mii read phy 1 reg 0x1 ret 0x796d
nfe0: mii read phy 1 reg 0x1 ret 0x796d
nfe0: mii read phy 1 reg 0x1 ret 0x796d
nfe0: mii read phy 1 reg 0xf ret 0x3000
nfe0: mii read phy 1 reg 0x0 ret 0x1000
nfe0: mii read phy 1 reg 0x11 ret 0xd00
nfe0: mii read phy 1 reg 0x13 ret 0x0
nfe0: mii read phy 1 reg 0x4 ret 0xde0
nfe0: mii read phy 1 reg 0x5 ret 0x21
nfe0: mii read phy 1 reg 0x1 ret 0x796d
nfe0: mii read phy 1 reg 0x1 ret 0x796d
nfe0: mii read phy 1 reg 0x1 ret 0x796d
nfe0: mii read phy 1 reg 0x1 ret 0x796d
nfe0: mii read phy 1 reg 0xf ret 0x3000
nfe0: mii read phy 1 reg 0x0 ret 0x1000
nfe0: mii read phy 1 reg 0x11 ret 0xd00
nfe0: mii read phy 1 reg 0x13 ret 0x0
nfe0: mii read phy 1 reg 0x4 ret 0xde0
nfe0: mii read phy 1 reg 0x5 ret 0x21