5.2-RELEASE panic in turnstile_wait

Erik Moe emoe at cox.net
Tue Jan 27 19:07:05 PST 2004

Script started on Tue Jan 27 20:46:14 2004
t30# gdb -k kernel.debug /usr/crash/vmcore.0
GNU gdb 5.2.1 (FreeBSD)
Copyright 2002 Free Software Foundation, Inc.
GDB is free software, covered by the GNU General Public License, and you are
welcome to change it and/or distribute copies of it under certain
Type "show copying" to see the conditions.
There is absolutely no warranty for GDB.  Type "show warranty" for details.
This GDB was configured as "i386-unknown-freebsd"...
panic: page fault
panic messages:
Fatal trap 12: page fault while in kernel mode
fault virtual address	= 0x6c
fault code		= supervisor read, page not present
instruction pointer	= 0x8:0xc0571bfd
stack pointer	        = 0x10:0xe3ab7c28
frame pointer	        = 0x10:0xe3ab7c2c
code segment		= base 0x0, limit 0xfffff, type 0x1b
			= DPL 0, pres 1, def32 1, gran 1
processor eflags	= resume, IOPL = 0
current process		= 699 (zcat)
trap number		= 12
panic: page fault

syncing disks, buffers remaining... 3007 3007 3007 3007 3007 3007 3007 3007
3007 3007 3007 3007 3007 3007 3007 3007 3007 3007 3007 3007
giving up on 81 buffers
Uptime: 31m17s
Dumping 767 MB
[CTRL-C to abort] [CTRL-C to abort] [CTRL-C to abort] [CTRL-C to abort]
[CTRL-C to abort]  16 32 48 64 80 96 112 128 144 160 176 192 208 224 240 256
272 288 304 320 336 352 368 384 400 416 432 448 464 480 496 512 528 544 560
576 592 608 624 640 656 672 688 704 720 736 752

warning: cannot find file for module ltmdm.ko

Error while mapping shared library sections:
ltmdm.ko: No such file or directory.
Reading symbols from
Loaded symbols for
Reading symbols from
Loaded symbols for
Error while reading shared library symbols:
ltmdm.ko: No such file or directory.
Reading symbols from /boot/kernel/radeon.ko...done.
Loaded symbols for /boot/kernel/radeon.ko
#0  doadump () at /usr/src/sys/kern/kern_shutdown.c:240
240		dumping++;
(kgdb) bt
#0  doadump () at /usr/src/sys/kern/kern_shutdown.c:240
#1  0xc054ea58 in boot (howto=256) at /usr/src/sys/kern/kern_shutdown.c:372
#2  0xc054ed48 in panic () at /usr/src/sys/kern/kern_shutdown.c:550
#3  0xc06b59fc in trap_fatal (frame=0xe3ab7be8, eva=0)
    at /usr/src/sys/i386/i386/trap.c:821
#4  0xc06b5113 in trap (frame=
      {tf_fs = 24, tf_es = 16, tf_ds = 16, tf_edi = -969008320, tf_esi
= -969012736, tf_ebp = -475300820, tf_isp = -475300844, tf_ebx = -969008320,
tf_edx = -969012736, tf_ecx = 0, tf_eax = 0, tf_trapno = 12, tf_err = 0,
tf_eip = -1068033027, tf_cs = 8, tf_eflags = 65538, tf_esp = -962721112,
tf_ss = -475300780})
    at /usr/src/sys/i386/i386/trap.c:250
#5  0xc06a7de8 in calltrap () at {standard input}:94
#6  0xc0571efc in turnstile_wait (ts=0xc63e1b40, lock=0xc69e0aa8, owner=0x0)
    at /usr/src/sys/kern/subr_turnstile.c:458
#7  0xc0546015 in _mtx_lock_sleep (m=0xc69e0aa8, opts=0,
    file=0xc06f3a10 "/usr/src/sys/kern/kern_exit.c", line=453)
    at /usr/src/sys/kern/kern_mutex.c:476
#8  0xc0545e20 in _mtx_lock_flags (m=0x0, opts=0, file=0x0, line=0)
    at /usr/src/sys/kern/kern_mutex.c:218
#9  0xc05398ed in exit1 (td=0xc63e0a00, rv=0)
    at /usr/src/sys/kern/kern_exit.c:453
#10 0xc0538bd1 in sys_exit () at /usr/src/sys/kern/kern_exit.c:102
#11 0xc06b5d10 in syscall (frame=
      {tf_fs = 47, tf_es = 47, tf_ds = 47, tf_edi = 0, tf_esi = -1, tf_ebp
= -1077941448, tf_isp = -475300492, tf_ebx = 672416032, tf_edx = 2, tf_ecx =
0, tf_eax = 1, tf_trapno = 12, tf_err = 2, tf_eip = 671903659, tf_cs = 31,
tf_eflags = 582, tf_esp = -1077941476, tf_ss = 47}) at
#12 0xc06a7e3d in Xint0x80_syscall () at {standard input}:136
---Can't read userspace from dump, or kernel process---

(kgdb) frame 6
#6  0xc0571efc in turnstile_wait (ts=0xc63e1b40, lock=0xc69e0aa8, owner=0x0)
    at /usr/src/sys/kern/subr_turnstile.c:458
458			turnstile_setowner(ts, owner);
(kgdb) list 458
453			    ("thread's turnstile has a non-empty free list"));
454			KASSERT(ts->ts_lockobj == NULL, ("stale ts_lockobj pointer"));
455			ts->ts_lockobj = lock;
456			mtx_lock_spin(&td_contested_lock);
457			TAILQ_INSERT_TAIL(&ts->ts_blocked, td, td_lockq);
458			turnstile_setowner(ts, owner);
459			mtx_unlock_spin(&td_contested_lock);
460		} else {
461			TAILQ_FOREACH(td1, &ts->ts_blocked, td_lockq)
462				if (td1->td_priority > td->td_priority)
(kgdb) p ts
$1 = (struct turnstile *) 0xc63e1b40
(kgdb) p *ts
$2 = {ts_blocked = {tqh_first = 0xc63e0a00, tqh_last = 0xc63e0a20},
  ts_pending = {tqh_first = 0x0, tqh_last = 0xc63e1b48}, ts_hash = {
    le_next = 0x0, le_prev = 0xc07683b0}, ts_link = {le_next = 0x0,
    le_prev = 0x0}, ts_free = {lh_first = 0x0}, ts_lockobj = 0xc69e0aa8,
  ts_owner = 0x0}
(kgdb) p owner
$3 = (struct thread *) 0x0
(kgdb) quit
t30# dmesg
Copyright (c) 1992-2004 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.
FreeBSD 5.2-RELEASE #11: Fri Jan 16 13:07:12 CST 2004
    root at t30.us.ibm.com:/usr/obj/usr/src/sys/T30
Preloaded elf kernel "/boot/kernel/kernel" at 0xc0879000.
Preloaded elf module "/boot/kernel/acpi.ko" at 0xc087926c.
Timecounter "i8254" frequency 1193182 Hz quality 0
CPU: Mobile Intel(R) Pentium(R) 4 - M CPU 2.00GHz (1998.31-MHz 686-class
  Origin = "GenuineIntel"  Id = 0xf27  Stepping = 7

real memory  = 804716544 (767 MB)
avail memory = 771964928 (736 MB)
Pentium Pro MTRR support enabled
npx0: [FAST]
npx0: <math processor> on motherboard
npx0: INT 16 interface
acpi0: <IBM    TP-1I   > on motherboard
acpi_ec0: <Embedded Controller: ECDT, GPE 0x1c, GLK> port 0x66,0x62 on acpi0
pcibios: BIOS version 2.10
Using $PIR table, 14 entries at 0xc00fdeb0
acpi0: Power Button (fixed)
Timecounter "ACPI-fast" frequency 3579545 Hz quality 1000
acpi_timer0: <24-bit timer at 3.579545MHz> port 0x1008-0x100b on acpi0
acpi_cpu0: <CPU> port 0x530-0x537 on acpi0
acpi_tz0: <Thermal Zone> port 0x530-0x537 on acpi0
acpi_lid0: <Control Method Lid Switch> on acpi0
acpi_button0: <Sleep Button> on acpi0
pcib0: <ACPI Host-PCI bridge> port 0xcf8-0xcff on acpi0
pci0: <ACPI PCI bus> on pcib0
pcib0: slot 29 INTA is routed to irq 11
pcib0: slot 29 INTB is routed to irq 11
pcib0: slot 29 INTC is routed to irq 11
pcib0: slot 31 INTB is routed to irq 5
pcib0: slot 31 INTB is routed to irq 5
pcib0: slot 31 INTB is routed to irq 5
agp0: <Intel 82845 host to AGP bridge> mem 0xe0000000-0xe3ffffff at device
0.0 on pci0
pcib1: <ACPI PCI-PCI bridge> at device 1.0 on pci0
pci1: <ACPI PCI bus> on pcib1
pcib1: slot 0 INTA is routed to irq 11
pci1: <display, VGA> at device 0.0 (no driver attached)
uhci0: <Intel 82801CA/CAM (ICH3) USB controller USB-A> port 0x1800-0x181f
irq 11 at device 29.0 on pci0
usb0: <Intel 82801CA/CAM (ICH3) USB controller USB-A> on uhci0
usb0: USB revision 1.0
uhub0: Intel UHCI root hub, class 9/0, rev 1.00/1.00, addr 1
uhub0: 2 ports with 2 removable, self powered
uhci1: <Intel 82801CA/CAM (ICH3) USB controller USB-B> port 0x1820-0x183f
irq 11 at device 29.1 on pci0
usb1: <Intel 82801CA/CAM (ICH3) USB controller USB-B> on uhci1
usb1: USB revision 1.0
uhub1: Intel UHCI root hub, class 9/0, rev 1.00/1.00, addr 1
uhub1: 2 ports with 2 removable, self powered
uhci2: <Intel 82801CA/CAM (ICH3) USB controller USB-C> port 0x1840-0x185f
irq 11 at device 29.2 on pci0
usb2: <Intel 82801CA/CAM (ICH3) USB controller USB-C> on uhci2
usb2: USB revision 1.0
uhub2: Intel UHCI root hub, class 9/0, rev 1.00/1.00, addr 1
uhub2: 2 ports with 2 removable, self powered
pcib2: <ACPI PCI-PCI bridge> at device 30.0 on pci0
pci2: <ACPI PCI bus> on pcib2
pcib2: slot 0 INTA is routed to irq 11
pcib2: slot 0 INTB is routed to irq 5
pcib2: slot 8 INTA is routed to irq 11
cbb0: <TI1520 PCI-CardBus Bridge> mem 0x50000000-0x50000fff irq 11 at device
0.0 on pci2
start (50000000) < sc->membase (d0200000)
start (50000000) < sc->pmembase (f0000000)
cardbus0: <CardBus bus> on cbb0
pccard0: <16-bit PCCard bus> on cbb0
cbb0: [MPSAFE]
cbb1: <TI1520 PCI-CardBus Bridge> mem 0x51000000-0x51000fff irq 5 at device
0.1 on pci2
start (51000000) < sc->membase (d0200000)
start (51000000) < sc->pmembase (f0000000)
cardbus1: <CardBus bus> on cbb1
pccard1: <16-bit PCCard bus> on cbb1
cbb1: [MPSAFE]
fxp0: <Intel 82801CAM (ICH3) Pro/100 VE Ethernet> port 0x8000-0x803f mem
0xd0200000-0xd0200fff irq 11 at device 8.0 on pci2
fxp0: Ethernet address 00:09:6b:86:e1:92
miibus0: <MII bus> on fxp0
inphy0: <i82562ET 10/100 media interface> on miibus0
inphy0:  10baseT, 10baseT-FDX, 100baseTX, 100baseTX-FDX, auto
isab0: <PCI-ISA bridge> at device 31.0 on pci0
isa0: <ISA bus> on isab0
atapci0: <Intel ICH3 UDMA100 controller> port
0x1860-0x186f,0x374-0x377,0x170-0x177,0x3f4-0x3f7,0x1f0-0x1f7 at device 31.1
on pci0
ata0: at 0x1f0 irq 14 on atapci0
ata0: [MPSAFE]
ata1: at 0x170 irq 15 on atapci0
ata1: [MPSAFE]
ichsmb0: <Intel 82801CA (ICH3) SMBus controller> port 0x1880-0x189f irq 5 at
device 31.3 on pci0
smbus0: <System Management Bus> on ichsmb0
smb0: <SMBus generic I/O> on smbus0
pcm0: <Intel ICH3 (82801CA)> port 0x18c0-0x18ff,0x1c00-0x1cff irq 5 at
device 31.5 on pci0
pcm0: <Analog Devices AD1881A AC97 Codec>
pci0: <simple comms> at device 31.6 (no driver attached)
atkbdc0: <Keyboard controller (i8042)> port 0x64,0x60 irq 1 on acpi0
atkbd0: <AT Keyboard> flags 0x1 irq 1 on atkbdc0
kbd0 at atkbd0
psm0: <PS/2 Mouse> irq 12 on atkbdc0
psm0: model Generic PS/2 mouse, device ID 0
fdc0: <Enhanced floppy controller (i82077, NE72065 or clone)> port
0x3f7,0x3f0-0x3f5 irq 6 drq 2 on acpi0
fdc0: FIFO enabled, 8 bytes threshold
fd0: <1440-KB 3.5" drive> on fdc0 drive 0
sio0 port 0x3f8-0x3ff irq 4 on acpi0
sio0: type 16550A
ppc0 port 0x3bc-0x3c3 irq 7 on acpi0
ppc0: Generic chipset (NIBBLE-only) in COMPATIBLE mode
ppbus0: <Parallel port bus> on ppc0
plip0: <PLIP network interface> on ppbus0
lpt0: <Printer> on ppbus0
lpt0: Interrupt-driven port
ppi0: <Parallel I/O> on ppbus0
sio1 port 0x2f8-0x2ff irq 3 drq 3 on acpi0
sio1: type 16550A
acpi_cmbat0: <Control Method Battery> on acpi0
acpi_cmbat1: <Control Method Battery> on acpi0
acpi_acad0: <AC Adapter> on acpi0
orm0: <Option ROMs> at iomem
fff on isa0
pmtimer0 on isa0
sc0: <System console> at flags 0x100 on isa0
sc0: VGA <16 virtual consoles, flags=0x300>
vga0: <Generic ISA VGA> at port 0x3c0-0x3df iomem 0xa0000-0xbffff on isa0
Timecounter "TSC" frequency 1998313820 Hz quality 800
Timecounters tick every 10.000 msec
acpi_cpu: throttling enabled, 8 steps (100% to 12.5%), currently 100.0%
GEOM: create disk ad0 dp=0xc63cf260
ad0: 57231MB <HITACHI_DK23EA-60B> [116280/16/63] at ata0-master UDMA100
acd0: DVDROM <MATSHITADVD-ROM SR-8174> at ata1-master UDMA33
GEOM: create disk cd0 dp=0xc63c2e00
cd0 at ata1 bus 0 target 0 lun 0
cd0: <MATSHITA DVD-ROM SR-8174 C221> Removable CD-ROM SCSI-0 device
cd0: 33.000MB/s transfers
cd0: Attempt to query device size failed: NOT READY, Medium not present
Mounting root from ufs:/dev/ad0s1a
drm0: <ATI Radeon LW Mobility 7500 M7> port 0x3000-0x30ff mem
0xd0100000-0xd010ffff,0xe8000000-0xefffffff irq 11 at device 0.0 on pci1
info: [drm] AGP at 0xe0000000 64MB
info: [drm] Initialized radeon 1.10.0 20020828 on minor 0
drm0: [MPSAFE]
t30# cat /sys/i386/conf/T30
# T30 -- T30 kernel configuration file for FreeBSD/i386

machine		i386
cpu		I686_CPU
ident		T30

#To statically compile in device wiring instead of /boot/device.hints
#hints		"GENERIC.hints"		#Default places to look for devices.

makeoptions	DEBUG=-g		#Build kernel with gdb(1) debug symbols

options 	SCHED_4BSD		#4BSD scheduler
options 	INET			#InterNETworking
options 	INET6			#IPv6 communications protocols
options 	FFS			#Berkeley Fast Filesystem
options 	SOFTUPDATES		#Enable FFS soft updates support
options 	UFS_ACL			#Support for access control lists
options 	UFS_DIRHASH		#Improve performance on big directories
options 	MD_ROOT			#MD is a potential root device
options 	NFSCLIENT		#Network Filesystem Client
options 	NFSSERVER		#Network Filesystem Server
options 	NFS_ROOT		#NFS usable as root device, requires NFSCLIENT
options 	MSDOSFS			#MSDOS Filesystem
options 	CD9660			#ISO 9660 Filesystem
options 	PROCFS			#Process filesystem (requires PSEUDOFS)
options 	PSEUDOFS		#Pseudo-filesystem framework
options 	COMPAT_43		#Compatible with BSD 4.3 [KEEP THIS!]
options 	COMPAT_FREEBSD4		#Compatible with FreeBSD4
options 	SCSI_DELAY=15000	#Delay (in ms) before probing SCSI
options 	KTRACE			#ktrace(1) support
options 	SYSVSHM			#SYSV-style shared memory
options 	SYSVMSG			#SYSV-style message queues
options 	SYSVSEM			#SYSV-style semaphores
options 	_KPOSIX_PRIORITY_SCHEDULING #Posix P1003_1B real-time extensions
options 	KBD_INSTALL_CDEV	# install a CDEV entry in /dev
options 	AHC_REG_PRETTY_PRINT	# Print register bitfields in debug
					# output.  Adds ~128k to driver.
options 	AHD_REG_PRETTY_PRINT	# Print register bitfields in debug
					# output.  Adds ~215k to driver.

# Debugging for use in -current
#options 	DDB			#Enable the kernel debugger
#options 	INVARIANTS		#Enable calls of extra sanity checking
options 	INVARIANT_SUPPORT	#Extra sanity checks of internal structures,
required by INVARIANTS
#options 	WITNESS			#Enable checks to detect deadlocks and cycles
#options 	WITNESS_SKIPSPIN	#Don't run witness on spinlocks for speed

# To make an SMP kernel, the next two are needed
#options 	SMP			# Symmetric MultiProcessor Kernel
#options 	APIC_IO			# Symmetric (APIC) I/O

device		isa
#device		eisa
device		pci

# Floppy drives
device		fdc

# ATA and ATAPI devices
device		ata
device		atadisk			# ATA disk drives
device		atapicd			# ATAPI CDROM drives
#device		atapifd			# ATAPI floppy drives
#device		atapist			# ATAPI tape drives
options 	ATA_STATIC_ID		#Static device numbering
device		atapicam

# SCSI Controllers
#device		ahb		# EISA AHA1742 family
#device		ahc		# AHA2940 and onboard AIC7xxx devices
#device		ahd		# AHA39320/29320 and onboard AIC79xx devices
#device		amd		# AMD 53C974 (Tekram DC-390(T))
#device		isp		# Qlogic family
#device		mpt		# LSI-Logic MPT-Fusion
#device		ncr		# NCR/Symbios Logic
#device		sym		# NCR/Symbios Logic (newer chipsets + those of `ncr')
#device		trm		# Tekram DC395U/UW/F DC315U adapters

#device		adv		# Advansys SCSI adapters
#device		adw		# Advansys wide SCSI adapters
#device		aha		# Adaptec 154x SCSI adapters
#device		aic		# Adaptec 15[012]x SCSI adapters, AIC-6[23]60.
#device		bt		# Buslogic/Mylex MultiMaster SCSI adapters

#device		ncv		# NCR 53C500
#device		nsp		# Workbit Ninja SCSI-3
#device		stg		# TMC 18C30/18C50

# RAID controllers interfaced to the SCSI subsystem
#device		asr		# DPT SmartRAID V, VI and Adaptec SCSI RAID
#device		ciss		# Compaq Smart RAID 5*
#device		dpt		# DPT Smartcache III, IV - See NOTES for options!
#device		iir		# Intel Integrated RAID
#device		mly		# Mylex AcceleRAID/eXtremeRAID

# SCSI peripherals
device		scbus		# SCSI bus (required)
device		ch		# SCSI media changers
device		da		# Direct Access (disks)
device		sa		# Sequential Access (tape etc)
device		cd		# CD
device		pass		# Passthrough device (direct SCSI access)
device		ses		# SCSI Environmental Services (and SAF-TE)

# RAID controllers
#device		aac		# Adaptec FSA RAID
#device		aacp		# SCSI passthrough for aac (requires CAM)
#device		amr		# AMI MegaRAID
#device		ida		# Compaq Smart RAID
#device		ips		# IBM (Adaptec) ServeRAID
#device		mlx		# Mylex DAC960 family
#device		pst		# Promise Supertrak SX6000
#device		twe		# 3ware ATA RAID

# atkbdc0 controls both the keyboard and the PS/2 mouse
device		atkbdc		# AT keyboard controller
device		atkbd		# AT keyboard
device		psm		# PS/2 mouse

device		vga		# VGA video card driver

device		splash		# Splash screen and screen saver support

# syscons is the default console driver, resembling an SCO console
device		sc

# Enable this for the pcvt (VT220 compatible) console driver
#device		vt
#options 	XSERVER			# support for X server on a vt console
#options 	FAT_CURSOR		# start with block cursor

device		agp		# support several AGP chipsets

# Floating point support - do not disable.
device		npx

# Power management support (see NOTES for more options)
#device		apm
# Add suspend/resume support for the i8254.
device		pmtimer

# PCCARD (PCMCIA) support
# Pcmcia and cardbus bridge support
device		cbb			# cardbus (yenta) bridge
#device		pcic			# ExCA ISA and PCI bridges
device		pccard			# PC Card (16-bit) bus
device		cardbus			# CardBus (32-bit) bus

# Serial (COM) ports
device		sio		# 8250, 16[45]50 based serial ports

# Parallel port
device		ppc
device		ppbus		# Parallel port bus (required)
device		lpt		# Printer
device		plip		# TCP/IP over parallel
device		ppi		# Parallel port interface device
#device		vpo		# Requires scbus and da

# PCI Ethernet NICs.
#device		de		# DEC/Intel DC21x4x (``Tulip'')
#device		em		# Intel PRO/1000 adapter Gigabit Ethernet Card
#device		txp		# 3Com 3cR990 (``Typhoon'')
#device		vx		# 3Com 3c590, 3c595 (``Vortex'')

# PCI Ethernet NICs that use the common MII bus controller code.
# NOTE: Be sure to keep the 'device miibus' line in order to use these NICs!
device		miibus		# MII bus support
#device		dc		# DEC/Intel 21143 and various workalikes
device		fxp		# Intel EtherExpress PRO/100B (82557, 82558)
#device		pcn		# AMD Am79C97x PCI 10/100 (precedence over 'lnc')
#device		rl		# RealTek 8129/8139
#device		sf		# Adaptec AIC-6915 (``Starfire'')
#device		sis		# Silicon Integrated Systems SiS 900/SiS 7016
#device		sk		# SysKonnect SK-984x and SK-982x gigabit ethernet
#device		ste		# Sundance ST201 (D-Link DFE-550TX)
#device		ti		# Alteon Networks Tigon I/II gigabit ethernet
#device		tl		# Texas Instruments ThunderLAN
#device		tx		# SMC EtherPower II (83c170 ``EPIC'')
#device		vr		# VIA Rhine, Rhine II
#device		wb		# Winbond W89C840F
#device		xl		# 3Com 3c90x (``Boomerang'', ``Cyclone'')
#device		bge		# Broadcom BCM570xx Gigabit Ethernet

# ISA Ethernet NICs.  pccard nics included.
#device		cs		# Crystal Semiconductor CS89x0 NIC
# 'device ed' requires 'device miibus'
#device		ed		# NE[12]000, SMC Ultra, 3c503, DS8390 cards
#device		ex		# Intel EtherExpress Pro/10 and Pro/10+
device		ep		# Etherlink III based cards
#device		fe		# Fujitsu MB8696x based cards
#device		ie		# EtherExpress 8/16, 3C507, StarLAN 10 etc.
#device		lnc		# NE2100, NE32-VL Lance Ethernet cards
#device		sn		# SMC's 9000 series of ethernet chips
#device		xe		# Xircom pccard ethernet

# ISA devices that use the old ISA shims
#device		le

# Wireless NIC cards
device		wlan		# 802.11 support
device		an		# Aironet 4500/4800 802.11 wireless NICs.
#device		awi		# BayStack 660 and others
#device		wi		# WaveLAN/Intersil/Symbol 802.11 wireless NICs.
#device		wl		# Older non 802.11 Wavelan wireless NIC.

# Pseudo devices - the number indicates how many units to allocate.
device		random		# Entropy device
device		loop		# Network loopback
device		ether		# Ethernet support
device		sl		# Kernel SLIP
device		ppp		# Kernel PPP
device		tun		# Packet tunnel.
device		pty		# Pseudo-ttys (telnet etc)
device		md		# Memory "disks"
device		gif		# IPv6 and IPv4 tunneling
device		faith		# IPv6-to-IPv4 relaying (translation)

# The `bpf' device enables the Berkeley Packet Filter.
# Be aware of the administrative consequences of enabling this!
device		bpf		# Berkeley packet filter

# USB support
device		uhci		# UHCI PCI->USB interface
device		ohci		# OHCI PCI->USB interface
device		usb		# USB Bus (required)
#device		udbp		# USB Double Bulk Pipe devices
device		ugen		# Generic
device		uhid		# "Human Interface Devices"
device		ukbd		# Keyboard
device		ulpt		# Printer
device		umass		# Disks/Mass storage - Requires scbus and da
device		ums		# Mouse
device		urio		# Diamond Rio 500 MP3 player
device		uscanner	# Scanners
# USB Ethernet, requires mii
device		aue		# ADMtek USB ethernet
device		axe		# ASIX Electronics USB ethernet
device		cue		# CATC USB ethernet
device		kue		# Kawasaki LSI USB ethernet

# FireWire support
#device		firewire	# FireWire bus code
#device		sbp		# SCSI over FireWire (Requires scbus and da)
#device		fwe		# Ethernet over FireWire (non-standard!)

# Sound support
device		pcm

# System Management Bus
device		smbus
device		smb
device		ichsmb
t30# exit

Script done on Tue Jan 27 20:56:50 2004

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