propagate_priority panic [backtrace]

Anish Mistry mistry.7 at osu.edu
Thu Jan 13 08:23:32 PST 2005


On Thursday 13 January 2005 01:10 am, Anish Mistry wrote:
> 	Not sure if anyone else is seeing this, but I'm pretty sure the following
> commit broke my system.  When mysql tries to shutdown I get a panic in
> propagate_priority. As well as X freezing when I go to start it.  Actually
> one of the applictions or the WM causes it to freeze, but same problem I
> think but I can't see the console.  Before this everything worked fine.  I
> can post the hand transcribed panic backtrace message tomorrow if anyone
> is interested since I don't have a serial port on the machine.
> I'm using the 4BSD scheduler with the latest -CURRENT.
>
> jhb         2004-12-30 20:52:44 UTC
>
>   FreeBSD src repository
>
>   Modified files:
>     sys/kern             sched_4bsd.c sched_ule.c subr_turnstile.c
>     sys/sys              proc.h sched.h turnstile.h
>
>   Revision  Changes    Path
>   1.71      +102 -14   src/sys/kern/sched_4bsd.c
>   1.144     +77 -20    src/sys/kern/sched_ule.c
>   1.151     +120 -71   src/sys/kern/subr_turnstile.c
>   1.415     +1 -0      src/sys/sys/proc.h
>   1.23      +2 -0      src/sys/sys/sched.h
>   1.6       +1 -0      src/sys/sys/turnstile.h
Dmesg and kernel config attached.
Ok, here is the panic and backtrace:
kernel trap 12 with interrupts disabled


Fatal trap 12: page fault while in kernel mode
fault virtual address = 0x4
fault code = supervisor read, page not present
instruction pointer = 0x8:0xc04d5a4f
stack pointer = 0x10:0xcc53bbdc
frame pointer = 0x10:0xcc53bbec
code segment = base 0x0, limit 0xfffff, type 0x1b
= DPL 0, pres 1, def32 1, gran 1
processor eflags = resume, IOPL = 0
 current process = 628 (mysqld)
[thread pid 628 tid 100085 ]
Stopped at propagate_priority+0x153: pushl 0x4(%eax)
db> tr
Tracing pid 628 tid 100085 td 0xc14e4730
propagate_priority(c0645cb4,c0645cb0,c15ac650,c14e4730,c14e4730) at 
propagate_priority+0x153
turnstile_wait(c15as650,c15ac650,2,c05f401e,21e) at turnstile_wait+0x1ae
_mtx_lock_sleep(c15ac650,c14e4730,0,c05f8604,206) at _mtx_lock_sleep+0x85
_mtx_lock_flags(c15ac650,0,c05f8604,206,c15ac650) at _mtx_lock_flags+0x50
sleepq_calc_signal_retval(0,0,100,ci4e4730,8476f4c) at 
sleep_calc_signal_retval+0x2b
msleep(c10bb334,c15ac650,168,c05f399a,402) at msleep+0x3eb
kse_release(c14e4730,cc53bd14,1,12,296) at kse_release+0x186
syscall(2f,2f,2f,8472000,0) at syscall+0x128
Xint-x80_syscall() at Xint0x80_syscall+0x1f
--- syscall (383, FreeBSD ELF32, kse_release), eip = 0x285851eb, esp = 
0x8476f28, ebp = 0x8476f64

-- 
Anish Mistry
-------------- next part --------------
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 6.0-CURRENT #22: Wed Jan 12 19:52:52 EST 2005
    amistry at littleguy.am-productions.biz:/usr/obj/usr/src/sys/LITTLEGUY
Timecounter "i8254" frequency 1193182 Hz quality 0
CPU: Transmeta(tm) Crusoe(tm) Processor TM5800 (859.34-MHz 586-class CPU)
  Origin = "GenuineTMx86"  Id = 0x543  Stepping = 3
  Features=0x84893f<FPU,VME,DE,PSE,TSC,MSR,CX8,SEP,CMOV,PN,MMX>
real memory  = 251527168 (239 MB)
avail memory = 240914432 (229 MB)
Crusoe LongRun support enabled, current mode: 2 <867MHz 1300mV 100%>
npx0: [FAST]
npx0: <math processor> on motherboard
npx0: INT 16 interface
acpi0: <FUJ PAULING2> on motherboard
acpi0: Power Button (fixed)
acpi_ec0: <Embedded Controller: GPE 0> port 0x66,0x62 on acpi0
Timecounter "ACPI-safe" frequency 3579545 Hz quality 1000
acpi_timer0: <24-bit timer at 3.579545MHz> port 0xff08-0xff0b on acpi0
cpu0: <ACPI CPU (3 Cx states)> on acpi0
pcib0: <ACPI Host-PCI bridge> port 0xcf8-0xcff on acpi0
pci_link0: <ACPI PCI Link LNKU> irq 11 on acpi0
pci_link1: <ACPI PCI Link LNKH> irq 9 on acpi0
pci_link2: <ACPI PCI Link LNKA> irq 9 on acpi0
pci_link3: <ACPI PCI Link LNKC> irq 9 on acpi0
pci_link4: <ACPI PCI Link LNKD> irq 9 on acpi0
pci_link5: <ACPI PCI Link LNKB> irq 9 on acpi0
pci_link6: <ACPI PCI Link LNKE> on acpi0
pci_link7: <ACPI PCI Link LNKF> on acpi0
pci0: <ACPI PCI bus> on pcib0
pci0: <memory, RAM> at device 0.1 (no driver attached)
pci0: <memory, RAM> at device 0.2 (no driver attached)
ohci0: <AcerLabs M5237 (Aladdin-V) USB controller> mem 0xfc004000-0xfc004fff irq 11 at device 2.0 on pci0
ohci0: [GIANT-LOCKED]
usb0: OHCI version 1.0, legacy support
usb0: <AcerLabs M5237 (Aladdin-V) USB controller> on ohci0
usb0: USB revision 1.0
uhub0: AcerLabs OHCI root hub, class 9/0, rev 1.00/1.00, addr 1
uhub0: 2 ports with 2 removable, self powered
pcm0: <Acer Labs M5451> port 0x1000-0x10ff mem 0xfc005000-0xfc005fff irq 9 at device 4.0 on pci0
pcm0: <SigmaTel STAC9756/57 AC97 Codec>
pcm0: [GIANT-LOCKED]
pci0: <bridge, PCI-unknown> at device 6.0 (no driver attached)
isab0: <PCI-ISA bridge> at device 7.0 on pci0
isa0: <ISA bus> on isab0
pci0: <bridge, PCI-CardBus> at device 12.0 (no driver attached)
atapci0: <AcerLabs Aladdin UDMA66 controller> port 0x1800-0x180f,0x376,0x170-0x177,0x3f6,0x1f0-0x1f7 at device 15.0 on pci0
ata0: channel #0 on atapci0
ata1: channel #1 on atapci0
rl0: <RealTek 8139 10/100BaseTX> port 0x8000-0x80ff mem 0xfc007800-0xfc0078ff irq 9 at device 16.0 on pci0
miibus0: <MII bus> on rl0
rlphy0: <RealTek internal media interface> on miibus0
rlphy0:  10baseT, 10baseT-FDX, 100baseTX, 100baseTX-FDX, auto
rl0: Ethernet address: 00:e0:00:ae:45:08
fwohci0: <Texas Instruments TSB43AB21/A/AI/A-EP> mem 0xfc000000-0xfc003fff,0xfc007000-0xfc0077ff irq 9 at device 19.0 on pci0
fwohci0: OHCI version 1.10 (ROM=0)
fwohci0: No. of Isochronous channels is 4.
fwohci0: EUI64 00:00:0e:10:00:b0:29:d0
fwohci0: Phy 1394a available S400, 1 ports.
fwohci0: Link S400, max_rec 2048 bytes.
firewire0: <IEEE1394(FireWire) bus> on fwohci0
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: <display, VGA> at device 20.0 (no driver attached)
acpi_button0: <Power Button> on acpi0
acpi_acad0: <AC Adapter> on acpi0
acpi_cmbat0: <Control Method Battery> on acpi0
acpi_cmbat1: <Control Method Battery> on acpi0
acpi_lid0: <Control Method Lid Switch> on acpi0
atkbdc0: <Keyboard controller (i8042)> port 0x64,0x60 irq 1 on acpi0
atkbd0: <AT Keyboard> irq 1 on atkbdc0
kbd0 at atkbd0
atkbd0: [GIANT-LOCKED]
psm0: <PS/2 Mouse> flags 0x3000 irq 12 on atkbdc0
psm0: [GIANT-LOCKED]
psm0: model Generic PS/2 mouse, device ID 0
pci_link8: <ACPI PCI Link LNKG> on acpi0
pmtimer0 on isa0
orm0: <ISA Option ROMs> at iomem 0xd0000-0xd0fff,0xc0000-0xcffff 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 859335275 Hz quality 800
Timecounters tick every 0.976 msec
cpu0: set speed to 100.0%
acpi_cpu: throttling enabled, acpi_acad0: acline initialization startacpi_cmbat0: battery ini8 steps (100% to 12.5%), currently 100.0%
acpi_cmbat1: battery initialization start

tialization start
acpi_acad0: On Line
acpi_acad0: acline initialization done, tried 1 times
ad0: 19077MB <TOSHIBA MK2018GAP/M1.42 A> [38760/16/63] at ata0-master UDMA66
acpi_cmbat0: battery initialization done, tried 1 times
acd0: CDRW <TOSHIBA DVD-ROM SD-R2212/1F15> at ata1-master PIO4
Trying to mount root from ufs:/dev/ad0s2a
WARNING: / was not properly dismounted
WARNING: /tmp was not properly dismounted
WARNING: /usr was not properly dismounted
WARNING: /var was not properly dismounted
acpi_cmbat1: battery initialization failed, giving up
kernel trap 12 with interrupts disabled


Fatal trap 12: page fault while in kernel mode
fault virtual address	= 0x4
fault code		= supervisor read, page not present
instruction pointer	= 0x8:0xc04d5a4f
stack pointer	        = 0x10:0xcc53bbdc
frame pointer	        = 0x10:0xcc53bbec
code segment		= base 0x0, limit 0xfffff, type 0x1b
			= DPL 0, pres 1, def32 1, gran 1
processor eflags	= resume, IOPL = 0
current process		= 628 (mysqld)
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 6.0-CURRENT #22: Wed Jan 12 19:52:52 EST 2005
    amistry at littleguy.am-productions.biz:/usr/obj/usr/src/sys/LITTLEGUY
Timecounter "i8254" frequency 1193182 Hz quality 0
CPU: Transmeta(tm) Crusoe(tm) Processor TM5800 (859.34-MHz 586-class CPU)
  Origin = "GenuineTMx86"  Id = 0x543  Stepping = 3
  Features=0x84893f<FPU,VME,DE,PSE,TSC,MSR,CX8,SEP,CMOV,PN,MMX>
real memory  = 251527168 (239 MB)
avail memory = 240914432 (229 MB)
Crusoe LongRun support enabled, current mode: 2 <867MHz 1300mV 100%>
npx0: [FAST]
npx0: <math processor> on motherboard
npx0: INT 16 interface
acpi0: <FUJ PAULING2> on motherboard
acpi0: Power Button (fixed)
acpi_ec0: <Embedded Controller: GPE 0> port 0x66,0x62 on acpi0
Timecounter "ACPI-safe" frequency 3579545 Hz quality 1000
acpi_timer0: <24-bit timer at 3.579545MHz> port 0xff08-0xff0b on acpi0
cpu0: <ACPI CPU (3 Cx states)> on acpi0
pcib0: <ACPI Host-PCI bridge> port 0xcf8-0xcff on acpi0
pci_link0: <ACPI PCI Link LNKU> irq 11 on acpi0
pci_link1: <ACPI PCI Link LNKH> irq 9 on acpi0
pci_link2: <ACPI PCI Link LNKA> irq 9 on acpi0
pci_link3: <ACPI PCI Link LNKC> irq 9 on acpi0
pci_link4: <ACPI PCI Link LNKD> irq 9 on acpi0
pci_link5: <ACPI PCI Link LNKB> irq 9 on acpi0
pci_link6: <ACPI PCI Link LNKE> on acpi0
pci_link7: <ACPI PCI Link LNKF> on acpi0
pci0: <ACPI PCI bus> on pcib0
pci0: <memory, RAM> at device 0.1 (no driver attached)
pci0: <memory, RAM> at device 0.2 (no driver attached)
ohci0: <AcerLabs M5237 (Aladdin-V) USB controller> mem 0xfc004000-0xfc004fff irq 11 at device 2.0 on pci0
ohci0: [GIANT-LOCKED]
usb0: OHCI version 1.0, legacy support
usb0: <AcerLabs M5237 (Aladdin-V) USB controller> on ohci0
usb0: USB revision 1.0
uhub0: AcerLabs OHCI root hub, class 9/0, rev 1.00/1.00, addr 1
uhub0: 2 ports with 2 removable, self powered
pcm0: <Acer Labs M5451> port 0x1000-0x10ff mem 0xfc005000-0xfc005fff irq 9 at device 4.0 on pci0
pcm0: <SigmaTel STAC9756/57 AC97 Codec>
pcm0: [GIANT-LOCKED]
pci0: <bridge, PCI-unknown> at device 6.0 (no driver attached)
isab0: <PCI-ISA bridge> at device 7.0 on pci0
isa0: <ISA bus> on isab0
pci0: <bridge, PCI-CardBus> at device 12.0 (no driver attached)
atapci0: <AcerLabs Aladdin UDMA66 controller> port 0x1800-0x180f,0x376,0x170-0x177,0x3f6,0x1f0-0x1f7 at device 15.0 on pci0
ata0: channel #0 on atapci0
ata1: channel #1 on atapci0
rl0: <RealTek 8139 10/100BaseTX> port 0x8000-0x80ff mem 0xfc007800-0xfc0078ff irq 9 at device 16.0 on pci0
miibus0: <MII bus> on rl0
rlphy0: <RealTek internal media interface> on miibus0
rlphy0:  10baseT, 10baseT-FDX, 100baseTX, 100baseTX-FDX, auto
rl0: Ethernet address: 00:e0:00:ae:45:08
fwohci0: <Texas Instruments TSB43AB21/A/AI/A-EP> mem 0xfc000000-0xfc003fff,0xfc007000-0xfc0077ff irq 9 at device 19.0 on pci0
fwohci0: OHCI version 1.10 (ROM=0)
fwohci0: No. of Isochronous channels is 4.
fwohci0: EUI64 00:00:0e:10:00:b0:29:d0
fwohci0: Phy 1394a available S400, 1 ports.
fwohci0: Link S400, max_rec 2048 bytes.
firewire0: <IEEE1394(FireWire) bus> on fwohci0
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: <display, VGA> at device 20.0 (no driver attached)
acpi_button0: <Power Button> on acpi0
acpi_acad0: <AC Adapter> on acpi0
acpi_cmbat0: <Control Method Battery> on acpi0
acpi_cmbat1: <Control Method Battery> on acpi0
acpi_lid0: <Control Method Lid Switch> on acpi0
atkbdc0: <Keyboard controller (i8042)> port 0x64,0x60 irq 1 on acpi0
atkbd0: <AT Keyboard> irq 1 on atkbdc0
kbd0 at atkbd0
atkbd0: [GIANT-LOCKED]
psm0: <PS/2 Mouse> flags 0x3000 irq 12 on atkbdc0
psm0: [GIANT-LOCKED]
psm0: model Generic PS/2 mouse, device ID 0
pci_link8: <ACPI PCI Link LNKG> on acpi0
pmtimer0 on isa0
orm0: <ISA Option ROMs> at iomem 0xd0000-0xd0fff,0xc0000-0xcffff 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 859338652 Hz quality 800
Timecounters tick every 0.976 msec
cpu0: set speed to 100.0%
acpi_cpu: throttling enabled, 8 steps (100% to 12.5%), currently 100.0%acpi_cmbat0: battery initialization start

acpi_cmbat1: battery initialization start
acpi_acad0: acline initialization start
acpi_cmbat0: battery initialization done, tried 1 times
acpi_acad0: On Line
acpi_acad0: acline initialization done, tried 1 times
ad0: 19077MB <TOSHIBA MK2018GAP/M1.42 A> [38760/16/63] at ata0-master UDMA66
acd0: CDRW <TOSHIBA DVD-ROM SD-R2212/1F15> at ata1-master PIO4
Trying to mount root from ufs:/dev/ad0s2a
WARNING: / was not properly dismounted
acpi_cmbat1: battery initialization failed, giving up
-------------- next part --------------
#
# GENERIC -- Generic kernel configuration file for FreeBSD/i386
#
# For more information on this file, please read the handbook section on
# Kernel Configuration Files:
#
#    http://www.FreeBSD.org/doc/en_US.ISO8859-1/books/handbook/kernelconfig-config.html
#
# The handbook is also available locally in /usr/share/doc/handbook
# if you've installed the doc distribution, otherwise always see the
# FreeBSD World Wide Web server (http://www.FreeBSD.org/) for the
# latest information.
#
# An exhaustive list of options and more detailed explanations of the
# device lines is also present in the ../../conf/NOTES and NOTES files. 
# If you are in doubt as to the purpose or necessity of a line, check first 
# in NOTES.
#
# $FreeBSD: src/sys/i386/conf/GENERIC,v 1.369.2.1 2002/12/18 08:11:24 scottl Exp $

machine		i386
cpu		I586_CPU
ident		LITTLEGUY
maxusers	0

#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		DDB, KDB, KDB_UNATTENDED

options		PREEMPTION
options		FULL_PREEMPTION

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		NTFS			# NT 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.
options		CPU_ENABLE_LONGRUN

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

#options		PCI_ENABLE_IO_MODES
#options		CPU_SUSP_HLT
#options		CPU_ENABLE_SSE

# 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		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

# SCSI peripherals
device		scbus		# SCSI bus (required)
device		da		# Direct Access (disks)
#device		atapicam
device		cd
device		pass

# 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
options		VESA

#device		splash		# Splash screen and screen saver support

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

# 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

# add new scheduler
options		SCHED_4BSD
#options		SCHED_ULE

# 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

# 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		rl		# RealTek 8129/8139

# Wireless NIC cards
#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		mem		# Memory and kernel memory devices
device		io		# I/O device
#device		null		# Null and zero devices
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)

# sound
#device		pcm

# firewire (IEEE 1394)
#device		firewire

# system management bus
#device	 	iicbus
#device		iicbb
#device		ic
#device		iic
#device		iicsmb
#device		smbus
#device		smb
#device		alpm

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

# USB support
options		USB_DEBUG	# USB debugging
#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
-------------- next part --------------
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