Subject: hang and panic with kern_proc.c:1.36
To: None <current-users@netbsd.org>
From: Assar Westerlund <assar@sics.se>
List: current-users
Date: 01/16/2000 15:37:11
Hi there.  I've an i386 running -current (dmesg and config file
included below) that has managed to hang once and panic once in a day
or so.  Both times it seems to be related to `proclist_lock'.  And
both times it has basically been running `make build'.

From the hang I don't have any dump since it locked up when I tried to
get it to dump but I wrote down the stack-trace from DDB:

lockmgr
proclist_lock_read
pfind
selwakeup
sowakeup
tcp_input
ip_input
ipintr

And the panic happened in `proclist_unlock_write'.  More information
is available upon request.  I plan to revert to 1.35 and see if the
problems still occurs.

I don't see why `lkp->lk_exclusivecount == 0' and `lkp->lk_sharedcount
== 1' and the value `cpu_id' seems bogus.

/assar

----------------------------------------------------------------------
Current directory is /sys/arch/i386/compile/PEZEN/
GNU gdb 4.17
Copyright 1998 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 conditions.
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--netbsd"...
(gdb) exec-file netbsd.2
(gdb) target kcore netbsd.2.core
panic: lockmgr: processor %lu, not exclusive lock holder %lu unlocking
#0  0xf02c0d60 in vga_accessops ()
(gdb) bt
#0  0xf02c0d60 in vga_accessops ()
#1  0x5c44000 in ?? ()
#2  0xf0223c2f in cpu_reboot (howto=256, bootstr=0x0)
    at ../../../../arch/i386/i386/machdep.c:1123
#3  0xf01626a5 in panic () at ../../../../kern/subr_prf.c:217
#4  0xf0156732 in lockmgr (lkp=0xf033baa0, flags=4194310, interlkp=0x0)
    at ../../../../kern/kern_lock.c:557
#5  0xf0157aa8 in proclist_unlock_write (s=0)
    at ../../../../kern/kern_proc.c:252
#6  0xf0153bda in exit1 (p=0xf65c850c, rv=0)
    at ../../../../kern/kern_exit.c:266
#7  0xf0153964 in sys_exit (p=0xf65c850c, v=0xf6598f88, retval=0xf6598f80)
    at ../../../../kern/kern_exit.c:138
#8  0xf0229909 in syscall (frame={tf_es = 31, tf_ds = 31, tf_edi = 0, 
      tf_esi = -1, tf_ebp = -272639004, tf_ebx = 1208912880, tf_edx = 0, 
      tf_ecx = 2, tf_eax = 1, tf_trapno = 3, tf_err = 2, tf_eip = 1208870823, 
      tf_cs = 23, tf_eflags = 598, tf_esp = -272639028, tf_ss = 31, 
      tf_vm86_es = 0, tf_vm86_ds = 0, tf_vm86_fs = 0, tf_vm86_gs = 0})
    at ../../../../arch/i386/i386/trap.c:760
#9  0xf0100da5 in syscall1 ()
can not access 0xefbfdbe4, invalid translation (invalid PDE)
can not access 0xefbfdbe4, invalid translation (invalid PDE)
Cannot access memory at address 0xefbfdbe4.
(gdb) f 4
#4  0xf0156732 in lockmgr (lkp=0xf033baa0, flags=4194310, interlkp=0x0)
    at ../../../../kern/kern_lock.c:557
(gdb) p *lkp
$1 = {lk_interlock = {lock_data = 0}, lk_flags = 4194304, lk_sharecount = 1, 
  lk_exclusivecount = 0, lk_recurselevel = 0, lk_waitcount = 0, 
  lk_wmesg = 0xf02c170c "proclk", lk_un = {lk_un_sleep = {
      lk_sleep_lockholder = -1, lk_sleep_prio = 0, lk_sleep_timo = 0}, 
    lk_un_spin = {lk_spin_cpu = 4294967295}}}
(gdb) p cpu_id
$2 = 1559
(gdb) p pid
$3 = -2
----------------------------------------------------------------------

dmesg:

----------------------------------------------------------------------
NetBSD 1.4P (PEZEN) #0: Sat Jan 15 17:21:52 PST 2000
    root@pezen.pdc.kth.se:/usr/local/src/netbsd-current/sys/arch/i386/compile/PEZEN
cpu0: family 6 model 1 step 7
cpu0: Intel Pentium Pro (686-class)
total memory = 97920 KB
avail memory = 87904 KB
using 1249 buffers containing 4996 KB of memory
BIOS32 rev. 0 found at 0xfd9f0
mainbus0 (root)
pnpbios0 at mainbus0: code f0000, data 400, entry a430
pnpbios0: 15 nodes, max len 126
PNP0000 (io 20-21 a0-a1 4d0-4d1, irq 2) at pnpbios0 index 0 ignored
PNP0201 (io 0-f 80-90 94-9f c0-de 40b 410-43f 481-483 487 489-48c 4d6, dma 4) at pnpbios0 index 1 ignored
PNP0100 (io 40-43, irq 0) at pnpbios0 index 2 ignored
PNP0B00 (io 70-71, irq 8) at pnpbios0 index 3 ignored
PNP0800 (io 61) at pnpbios0 index 4 ignored
PNP0C04 (io f0-ff, irq 13) at pnpbios0 index 5 ignored
PNP0303 (io 60 64, irq 1) at pnpbios0 index 6 ignored
end in dep?
error in dependant function
error in possible configuration
 19 00 07 41 d0 0f 13 09 02 00 80 01 22 00 10 79 00 30 22 00 10 79 00 79 00
PNP0C01 (mem e8000-fffff 0-9ffff 100000-5ffffff fff80000-ffffffff) at pnpbios0 index 8 ignored
PNP0A03 (io cf8-cff) at pnpbios0 index 9 ignored
end in dep?
error in dependant function
error in possible configuration
 2f 00 0a 41 d0 07 00 01 02 00 90 00 47 01 f2 03 f2 03 01 04 22 40 00 2a 04 08 79 00 30 47 01 f2 03 f2 03 01 04 22 40 00 2a 04 08 79 00 79 00
end in dep?
error in dependant function
error in possible configuration
 65 00 0b 41 d0 04 00 07 01 01 80 00 47 01 78 03 78 03 01 04 22 80 00 79 00 30 47 01 78 03 78 03 01 04 22 80 00 30 47 01 78 02 78 02 01 04 22 80 00 30 47 01 bc 03 bc 03 01 04 22 80 00 30 47 01 78 03 78 03 01 04 22 20 00 30 47 01 78 02 78 02 01 04 22 20 00 30 47 01 bc 03 bc 03 01 04 22 20 00 79 00 79 00
end in dep?
error in dependant function
error in possible configuration
 65 00 0c 41 d0 05 01 07 00 00 80 00 47 01 f8 03 f8 03 01 08 22 10 00 79 00 30 47 01 f8 03 f8 03 01 08 22 10 00 30 47 01 f8 02 f8 02 01 08 22 08 00 30 47 01 e8 02 e8 02 01 08 22 18 00 30 47 01 e8 03 e8 03 01 08 22 18 00 30 47 01 f8 02 f8 02 01 08 22 18 00 30 47 01 f8 03 f8 03 01 08 22 18 00 79 00 79 00
end in dep?
error in dependant function
error in possible configuration
 65 00 0d 41 d0 05 01 07 00 00 80 00 47 01 f8 02 f8 02 01 08 22 08 00 79 00 30 47 01 f8 03 f8 03 01 08 22 10 00 30 47 01 f8 02 f8 02 01 08 22 08 00 30 47 01 e8 03 e8 03 01 08 22 18 00 30 47 01 e8 02 e8 02 01 08 22 18 00 30 47 01 f8 03 f8 03 01 08 22 18 00 30 47 01 f8 02 f8 02 01 08 22 18 00 79 00 79 00
PNP0C02 (io 78-7f 2e-2f) at pnpbios0 index 14 ignored
pci0 at mainbus0 bus 0: configuration mode 1
pci0: i/o space, memory space enabled
pchb0 at pci0 dev 0 function 0
pchb0: Intel 82441FX PCI and Memory Controller (PMC) (rev. 0x02)
pcib0 at pci0 dev 7 function 0
pcib0: Intel 82371SB PCI-to-ISA Bridge (PIIX3) (rev. 0x01)
pciide0 at pci0 dev 7 function 1: Intel 82371SB IDE Interface (PIIX3)
pciide0: bus-master DMA support present
pciide0: primary channel wired to compatibility mode
atapibus0 at pciide0 channel 0
cd0 at atapibus0 drive 0: <FX240S, , j01> type 5 cdrom removable
cd0: 32-bits data port
cd0: drive supports PIO mode 3, DMA mode 2
pciide0: primary channel interrupting at irq 14
cd0(pciide0:0:0): using PIO mode 0, DMA mode 2 (using DMA data transfers)
pciide0: secondary channel wired to compatibility mode
pciide0: disabling secondary channel (no drives)
ahc0 at pci0 dev 15 function 0
ahc0: interrupting at irq 10
ahc0: aic7880 Wide Channel, SCSI Id=7, 16 SCBs
scsibus0 at ahc0 channel 0: 16 targets, 8 luns per target
ex0 at pci0 dev 17 function 0: 3Com 3c905-TX 10/100 Ethernet (rev. 0x0)
ex0: interrupting at irq 10
ex0: MAC address 00:60:08:2c:cf:85
nsphy0 at ex0 phy 24: DP83840 10/100 media interface, rev. 1
nsphy0: 10baseT, 10baseT-FDX, 100baseTX, 100baseTX-FDX, auto
vga0 at pci0 dev 19 function 0: Matrox MGA Millennium II 2164W (rev. 0x00)
wsdisplay0 at vga0: console (80x25, vt100 emulation)
isa0 at pcib0
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
pms0 at pckbc0 (aux slot)
pckbc0: using irq 12 for aux slot
wsmouse0 at pms0 mux 0
pcppi0 at isa0 port 0x61
midi0 at pcppi0: PC speaker
sysbeep0 at pcppi0
npx0 at isa0 port 0xf0-0xff: using exception 16
fdc0 at isa0 port 0x3f0-0x3f7 irq 6 drq 2
fd0 at fdc0 drive 0: 1.44MB, 80 cyl, 2 head, 18 sec
apm0 at mainbus0: Power Management spec V1.2 (BIOS mgmt disabled) (BIOS managing devices)
apm0: A/C state: on
apm0: battery charge state: no battery
biomask effd netmask effd ttymask ffff
scsibus0: waiting 2 seconds for devices to settle...
ahc0: target 0 synchronous at 10.0MHz, offset = 0xf
sd0 at scsibus0 targ 0 lun 0: <SEAGATE, ST15150N, 0023> SCSI2 0/direct fixed
sd0: 4101 MB, 3712 cyl, 21 head, 107 sec, 512 bytes/sect x 8399448 sectors
boot device: sd0
root on sd0a dumps on sd0b
root file system type: ffs
----------------------------------------------------------------------

config file:

----------------------------------------------------------------------
#	$NetBSD: GENERIC,v 1.287 2000/01/04 06:58:54 chopps Exp $
#
#	GENERIC -- everything that's currently supported
#

include "arch/i386/conf/std.i386"

maxusers	32		# estimated number of users

# CPU support.  At least one is REQUIRED.
#options 	I386_CPU
#options 	I486_CPU
#options 	I586_CPU
options 	I686_CPU

# CPU-related options.
#options 	MATH_EMULATE	# floating point emulation
#options 	VM86		# virtual 8086 emulation
#options 	USER_LDT	# user-settable LDT; used by WINE
# eliminate delay no-ops in I/O; recommended on all but very old machines
options 	DUMMY_NOPS

# delay between "rebooting ..." message and hardware reset, in milliseconds
#options 	CPURESET_DELAY=2000

# Misc. i386-specific options
options 	XSERVER		# X server support in console drivers
#options 	XSERVER_DDB	# PF12 gets you into DDB when X is running

# This option allows you to force a serial console at the specified
# I/O address.   see console(4) for details.
#options 	"CONSDEVNAME=\"com\"",CONADDR=0x2f8,CONSPEED=57600
#	you don't want the option below ON iff you are using the
#	serial console option of the new boot strap code.
#options	CONS_OVERRIDE	# Always use above! independent of boot info

# The following options override the memory sizes passed in from the boot
# block.  Use them *only* if the boot block is unable to determine the correct
# values.  Note that the BIOS may *correctly* report less than 640k of base
# memory if the extended BIOS data area is located at the top of base memory
# (as is the case on most recent systems).
#options 	REALBASEMEM=639		# size of base memory (in KB)
#options 	REALEXTMEM=15360	# size of extended memory (in KB)

# Standard system options

options 	UCONSOLE	# users can use TIOCCONS (for xconsole)
options 	INSECURE	# disable kernel security levels

options 	RTC_OFFSET=0	# hardware clock is this many mins. west of GMT
options 	NTP		# NTP phase/frequency locked loop

options 	KTRACE		# system call tracing via ktrace(1)

options 	SYSVMSG		# System V-like message queues
options 	SYSVSEM		# System V-like semaphores
options 	SYSVSHM		# System V-like memory sharing
#options 	SHMMAXPGS=1024	# 1024 pages is the default

options 	LKM		# loadable kernel modules

# Diagnostic/debugging support options
options 	DIAGNOSTIC	# cheap kernel consistency checks
#options 	DEBUG		# expensive debugging checks/support
#options 	KMEMSTATS	# kernel memory statistics (vmstat -m)
options 	DDB		# in-kernel debugger
#options 	DDB_HISTORY_SIZE=100	# enable history editing in DDB
#options 	KGDB		# remote debugger
#options 	"KGDB_DEVNAME=\"com\"",KGDBADDR=0x3f8,KGDBRATE=9600
makeoptions	DEBUG="-g"	# compile full symbol table

# Compatibility options
#options 	COMPAT_NOMID	# compatibility with 386BSD, BSDI, NetBSD 0.8,
#options 	COMPAT_09	# NetBSD 0.9,
#options 	COMPAT_10	# NetBSD 1.0,
#options 	COMPAT_11	# NetBSD 1.1,
#options 	COMPAT_12	# NetBSD 1.2,
options 	COMPAT_13	# NetBSD 1.3,
options 	COMPAT_14	# NetBSD 1.4,
#options 	COMPAT_43	# and 4.3BSD
options 	COMPAT_386BSD_MBRPART # recognize old partition ID

options 	COMPAT_SVR4	# binary compatibility with SVR4
options 	COMPAT_IBCS2	# binary compatibility with SCO and ISC
options 	COMPAT_LINUX	# binary compatibility with Linux
options 	COMPAT_FREEBSD	# binary compatibility with FreeBSD

options 	COMPAT_AOUT	# binary compat for NetBSD a.out binaries

# File systems
file-system 	FFS		# UFS
file-system 	EXT2FS		# second extended file system (linux)
file-system 	LFS		# log-structured file system
file-system 	MFS		# memory file system
file-system 	NFS		# Network File System client
file-system 	NTFS		# Windows/NT file system (experimental)
file-system 	CD9660		# ISO 9660 + Rock Ridge file system
file-system 	MSDOSFS		# MS-DOS file system
file-system 	FDESC		# /dev/fd
file-system 	KERNFS		# /kern
file-system 	NULLFS		# loopback file system
file-system 	PORTAL		# portal filesystem (still experimental)
file-system 	PROCFS		# /proc
file-system 	UMAPFS		# NULLFS + uid and gid remapping
file-system 	UNION		# union file system
#file-system	CODA		# Coda File System; also needs vcoda (below)

# File system options
options 	QUOTA		# UFS quotas
#options 	FFS_EI		# FFS Endian Independent support
options 	SOFTDEP         # FFS soft updates support.
options 	NFSSERVER	# Network File System server
#options 	EXT2FS_SYSTEM_FLAGS # makes ext2fs file flags (append and
				# immutable) behave as system flags.

# Pull in config fragments for kernel crypto.  This is required for
# options IPSEC etc. to work. If you want to run with IPSEC, uncomment
# one of these, based on whether you use crypto-us or crypto-intl, and
# adjust the prefixes as necessary.

#prefix ../crypto-us/sys
#cinclude "conf/files.crypto-us"
#prefix

#prefix ../crypto-intl/sys
#cinclude "conf/files.crypto-intl"
#prefix

# Networking options
#options 	GATEWAY		# packet forwarding
options 	INET		# IP + ICMP + TCP + UDP
#options 	INET6		# IPV6
#options 	IPSEC		# IP security
#options 	IPSEC_ESP	# IP security (encryption part; define w/IPSEC)
#options 	IPSEC_DEBUG	# debug for IP security
#options 	MROUTING	# IP multicast routing
#options 	NS		# XNS
#options 	NSIP		# XNS tunneling over IP
#options 	ISO,TPIP	# OSI
#options 	EON		# OSI tunneling over IP
#options 	CCITT,LLC,HDLC	# X.25
#options 	NETATALK	# AppleTalk networking protocols
#options 	PPP_BSDCOMP	# BSD-Compress compression support for PPP
#options 	PPP_DEFLATE	# Deflate compression support for PPP
#options 	PPP_FILTER	# Active filter support for PPP (requires bpf)
#options 	PFIL_HOOKS	# pfil(9) packet filter hooks
#options 	IPFILTER_LOG	# ipmon(8) log support

# Compatibility with 4.2BSD implementation of TCP/IP.  Not recommended.
#options 	TCP_COMPAT_42

# These options enable verbose messages for several subsystems.
# Warning, these may compile large string tables into the kernel!
#options 	EISAVERBOSE	# verbose EISA device autoconfig messages
options 	PCIVERBOSE	# verbose PCI device autoconfig messages
#options 	PCMCIAVERBOSE	# verbose PCMCIA configuration messages
options 	SCSIVERBOSE	# human readable SCSI error messages
options 	USBVERBOSE	# verbose USB device autoconfig messages
options 	PNPBIOSVERBOSE	# verbose PnP BIOS messages

options 	NFS_BOOT_DHCP,NFS_BOOT_BOOTPARAM

#
# wscons options
#
# builtin terminal emulations
#options 	WSEMUL_SUN		# sun terminal emulation
options 	WSEMUL_VT100		# VT100 / VT220 emulation
# different kernel output - see dev/wscons/wsdisplayvar.h
options 	WS_KERNEL_FG=WSCOL_GREEN
#options 	WS_KERNEL_BG=WSCOL_BLACK
# compatibility to other console drivers
options 	WSDISPLAY_COMPAT_PCVT		# emulate some ioctls
options 	WSDISPLAY_COMPAT_SYSCONS	# emulate some ioctls
options 	WSDISPLAY_COMPAT_USL		# VT handling
options 	WSDISPLAY_COMPAT_RAWKBD		# can get raw scancodes
# see dev/pckbc/wskbdmap_mfii.c for implemented layouts
#options 	PCKBD_LAYOUT="(KB_DE | KB_NODEAD)"
# allocate a number of virtual screens at autoconfiguration time
#options 	WSDISPLAY_DEFAULTSCREENS=4
# use a large software cursor that doesn't blink
options 	PCDISPLAY_SOFTCURSOR

# Kernel root file system and dump configuration.
config		netbsd	root on ? type ?
#config		netbsd	root on sd0a type ffs
#config		netbsd	root on ? type nfs

#
# Device configuration
#

mainbus0 at root

apm0	at mainbus0			# Advanced power management

# Tuning for power management, see apm(4) for more details.
#options 	APM_NO_IDLE		# Don't call BIOS CPU idle function
#options 	APM_V10_ONLY		# Use only the APM 1.0 calls
#options 	APM_NO_POWEROFF		# Don't power off on halt(8)
#options 	APM_NO_POWER_PRINT	# Don't print stats on the console
#options	APM_DISABLE_INTERRUPTS=0 # Don't disable interrupts


# Basic Bus Support

# PCI bus support
pci*	at mainbus? bus ?
#pci*	at pchb? bus ?
pci*	at ppb? bus ?

# PCI bridges
pchb*	at pci? dev ? function ?	# PCI-Host bridges
#pceb*	at pci? dev ? function ?	# PCI-EISA bridges
pcib*	at pci? dev ? function ?	# PCI-ISA bridges
ppb*	at pci? dev ? function ?	# PCI-PCI bridges
# XXX 'puc's aren't really bridges, but there's no better place for them here
#puc*	at pci? dev ? function ?	# PCI "universal" comm. cards

# EISA bus support
#eisa*	at mainbus?
#eisa*	at pceb?

# ISA bus support
#isa*	at mainbus?
#isa*	at pceb?
isa*	at pcib?

# PCMCIA bus support
#pcmcia*	at pcic? controller ? socket ?
#pcmcia*	at tcic? controller ? socket ?

# ISA PCMCIA controllers
#pcic0	at isa? port 0x3e0 iomem 0xd0000 iosiz 0x4000
#pcic1	at isa? port 0x3e2 iomem 0xd4000 iosiz 0x4000
#tcic0	at isa? port 0x240 iomem 0xd0000 iosiz 0x4000

# PCI PCMCIA controllers
#pcic0	at pci? dev? function ?

# ISA Plug-and-Play bus support
#isapnp0	at isa?

# ISA Plug-and-Play PCMCIA controllers
#pcic*	at isapnp?

# Coprocessor Support

# Math Coprocessor support
npx0	at isa? port 0xf0 irq 13	# x86 math coprocessor


# Console Devices

# ISA console.  You can only configure one of these!
#pc0	at isa? port 0x60 irq 1		# pccons generic PC console driver
#vt0	at isa? port 0x60 irq 1		# PCVT console driver

# Keyboard layout configuration for pccons
#options 	FRENCH_KBD
#options 	FINNISH_KBD
#options 	GERMAN_KBD
#options 	NORWEGIAN_KBD

# wscons
pckbc0		at isa?			# pc keyboard controller
pckbd*		at pckbc?		# PC keyboard
# "opms" should not be enabled together with "pms" or "pmsi"
pms*		at pckbc?		# PS/2 mouse for wsmouse
pmsi*		at pckbc?		# PS/2 "Intelli"mouse for wsmouse
#opms*		at pckbc?		# backwards compatible PS/2 mouse
#vga0		at isa?
vga*		at pci?
#pcdisplay0	at isa?			# CGA, MDA, EGA, HGA
wsdisplay*	at vga? console ?
#wsdisplay*	at pcdisplay? console ?
wskbd* 		at pckbd? console ?
wsmouse*	at pms? mux 0
wsmouse*	at pmsi? mux 0

pcppi0	at isa?
sysbeep0	at pcppi?

# Serial Devices

# PCI serial interfaces
#com*	at puc? port ?			# 16x50s on "universal" comm boards
#cy*	at pci? dev ? function ?	# Cyclades Cyclom-Y serial boards

# ISA Plug-and-Play serial interfaces
#com*	at isapnp?			# Modems and serial boards

# PCMCIA serial interfaces
#com*	at pcmcia? function ?		# Modems and serial cards

#pcmcom*	at pcmcia? function ?		# PCMCIA multi-port serial cards
#com*	at pcmcom? slave ?		# ...and the slave devices

# ISA serial interfaces
#options 	COM_HAYESP		# adds Hayes ESP serial board support
#com0	at isa? port 0x3f8 irq 4	# Standard PC serial ports
#com1	at isa? port 0x2f8 irq 3
#com2	at isa? port 0x3e8 irq 5
#com3	at isa? port 0x2e8 irq 9
#ast0	at isa? port 0x1a0 irq 5	# AST 4-port serial cards
#com*	at ast? slave ?
#boca0	at isa? port 0x100 irq 5	# BOCA 8-port serial cards
#boca0	at isa? port 0x100 irq 5	# BOCA 16-port serial cards (BB2016)
#boca1	at isa? port 0x140 irq 5	# this line is also needed for BB2016
#com*	at boca? slave ?
#tcom0	at isa? port 0x100 irq 7	# TC-800 8-port serial cards
#com*	at tcom? slave ?
#rtfps0	at isa? port 0x1230 irq 10	# RT 4-port serial cards
#com*	at rtfps? slave ?
#cy0	at isa? iomem 0xd4000 irq 12	# Cyclades serial cards


# Parallel Printer Interfaces

# PCI parallel printer interfaces
#lpt*	at puc? port ?			# || ports on "universal" comm boards

# ISA parallel printer interfaces
#lpt0	at isa? port 0x378 irq 7	# standard PC parallel ports
#lpt1	at isa? port 0x278
#lpt2	at isa? port 0x3bc


# SCSI Controllers and Devices

# PCI SCSI controllers
#adv*	at pci? dev ? function ?	# AdvanSys 1200[A,B], 9xx[U,UA] SCSI
#adw*	at pci? dev ? function ?	# AdvanSys 9xxUW SCSI
#options 	ADW_WDTR_DISABLE	# 	disable Wide Data Tranfer
#options 	ADW_SDTR_DISABLE	# 	disable Syncronous Data Transfer
#options 	ADW_TAGQ_DISABLE	# 	disable Tag Queuing
ahc*	at pci? dev ? function ?	# Adaptec [23]94x, aic78x0 SCSI
#bha*	at pci? dev ? function ?	# BusLogic 9xx SCSI
#dpt*	at pci? dev ? function ?	# DPT SmartCache/SmartRAID
#isp*	at pci? dev ? function ?	# Qlogic ISP [12]0x0 SCSI/FibreChannel
#ncr*	at pci? dev ? function ?	# NCR 53c8xx SCSI
#pcscp*	at pci? dev ? function ?	# AMD 53c974 PCscsi-PCI SCSI

# EISA SCSI controllers
#ahb*	at eisa? slot ?			# Adaptec 174[02] SCSI
#ahc*	at eisa? slot ?			# Adaptec 274x, aic7770 SCSI
#bha*	at eisa? slot ?			# BusLogic 7xx SCSI
#dpt*	at eisa? slot ?			# DPT EATA SCSI
#uha*	at eisa? slot ?			# UltraStor 24f SCSI

# PCMCIA SCSI controllers
#aic*	at pcmcia? function ?		# Adaptec APA-1460 SCSI

# ISA Plug-and-Play SCSI controllers
#aha*	at isapnp? 			# Adaptec AHA-154[02
#aic*	at isapnp?			# Adaptec AHA-1520B

# ISA SCSI controllers
#adv0	at isa? port ? irq ? drq ?	# AdvanSys APB-514[02]
#aha0	at isa? port 0x330 irq ? drq ?	# Adaptec 154[02] SCSI
#aha1	at isa? port 0x334 irq ? drq ?
#ahc0	at isa? port ? irq ?		# Adaptec 284x SCSI
#aic0	at isa? port 0x340 irq 11	# Adaptec 152[02] SCSI
#bha0	at isa? port 0x330 irq ? drq ?	# BusLogic [457]4X SCSI
#bha1	at isa? port 0x334 irq ? drq ?
# The "nca" probe might give false hits or hang your machine.
#nca0	at isa? port 0x360 irq 15	# Port-mapped NCR 53C80 contoller
#nca1	at isa? iomem 0xd8000 irq 5	# Memory-mapped controller (T128, etc.)
#sea0	at isa? iomem 0xc8000 irq 5	# Seagate/Future Domain SCSI
#uha0	at isa? port 0x330 irq ? drq ?	# UltraStor [13]4f SCSI
#uha1	at isa? port 0x340 irq ? drq ?
#wds0	at isa? port 0x350 irq 15 drq 6	# WD7000 and TMC-7000 controllers
#wds1	at isa? port 0x358 irq 11 drq 5

# SCSI bus support
#scsibus* at adv?
#scsibus* at adw?
#scsibus* at aha?
#scsibus* at ahb?
scsibus* at ahc?
#scsibus* at aic?
#scsibus* at bha?
#scsibus* at dpt?
#scsibus* at isp?
##scsibus* at nca?
#scsibus* at ncr?
#scsibus* at pcscp?
#scsibus* at sea?
#scsibus* at uha?
#scsibus* at wds?

# SCSI devices
sd*	at scsibus? target ? lun ?	# SCSI disk drives
st*	at scsibus? target ? lun ?	# SCSI tape drives
cd*	at scsibus? target ? lun ?	# SCSI CD-ROM drives
ch*	at scsibus? target ? lun ?	# SCSI autochangers
ss*	at scsibus? target ? lun ?	# SCSI scanners
uk*	at scsibus? target ? lun ?	# SCSI unknown


# IDE and related devices
# PCI IDE controllers - see pciide(4) for supported hardware.
# The 0x0001 flag force the driver to use DMA, even if the driver doesn't know
# how to set up DMA modes for this chip. This may work, or may cause
# a machine hang with some controllers.
pciide* at pci ? dev ? function ? flags 0x0000

# ISA Plug-and-Play IDE controllers
#wdc*	at isapnp? 

# PCMCIA IDE controllers
#wdc*	at pcmcia? function ?

# ISA ST506, ESDI, and IDE controllers
# Use flags 0x01 if you want to try to use 32bits data I/O (the driver will
# fall back to 16bits I/O if 32bits I/O are not functional).
# Some controllers pass the initial 32bit test, but will fail later.
#wdc0	at isa? port 0x1f0 irq 14 flags 0x00
#wdc1	at isa? port 0x170 irq 15 flags 0x00

# IDE drives
# Flags are used only with controllers that support DMA operations
# and mode settings (e.g. some pciide controllers)
# The lowest order four bits (rightmost digit) of the flags define the PIO
# mode to use, the next set of four bits the DMA mode and the third set the
# UltraDMA mode. For each set of four bits, the 3 lower bits define the mode
# to use, and the last bit must be 1 for this setting to be used.
# For DMA and UDMA, 0xf (1111) means 'disable'.
# 0x0fac means 'use PIO mode 4, DMA mode 2, disable UltraDMA'.
# (0xc=1100, 0xa=1010, 0xf=1111)
# 0x0000 means "use whatever the drive claims to support".
#wd*	at wdc? channel ? drive ? flags 0x0000
wd*	at pciide? channel ? drive ? flags 0x0000

# ATAPI bus support
#atapibus* at wdc? channel ?
atapibus* at pciide? channel ?

# ATAPI devices
# flags have the same meaning as for IDE drives.
cd*	at atapibus? drive ? flags 0x0000	# ATAPI CD-ROM drives
sd*	at atapibus? drive ? flags 0x0000	# ATAPI disk drives
uk*	at atapibus? drive ? flags 0x0000	# ATAPI unknown


# Miscellaneous mass storage devices

# ISA floppy
fdc0	at isa? port 0x3f0 irq 6 drq 2	# standard PC floppy controllers
#fdc1	at isa? port 0x370 irq ? drq ?
fd*	at fdc? drive ?			# the drives themselves
# some machines need you to do this instead of fd*
#fd0	at fdc0 drive 0

# ISA CD-ROM devices
#mcd0	at isa? port 0x300 irq 10	# Mitsumi CD-ROM drives

# ISA tape devices
# note: the wt driver conflicts unpleasantly with SMC boards at the
# same I/O address. The probe reprograms their EEPROMs. Don't
# uncomment it unless you are actually using it.
#wt0	at isa? port 0x308 irq 5 drq 1	# Archive and Wangtek QIC tape drives


# Network Interfaces

# PCI network interfaces
de*	at pci? dev ? function ?	# DEC 21x4x-based Ethernet
en*	at pci? dev ? function ?	# ENI/Adaptec ATM
ep*	at pci? dev ? function ?	# 3Com 3c59x
ex*	at pci? dev ? function ?	# 3Com 90x[B]
epic*	at pci? dev ? function ?	# SMC EPIC/100 Ethernet
esh*	at pci? dev ? function ?	# Essential HIPPI card
fpa*	at pci? dev ? function ?	# DEC DEFPA FDDI
fxp*	at pci? dev ? function ?	# Intel EtherExpress PRO 10+/100B
le*	at pci? dev ? function ?	# PCnet-PCI Ethernet
ne*	at pci? dev ? function ?	# NE2000-compatible Ethernet
ntwoc*	at pci? dev ? function ?	# Riscom/N2 PCI Sync Serial
sip*	at pci? dev ? function ?	# SiS 900 Ethernet
tl*	at pci? dev ? function ?	# ThunderLAN-based Ethernet
tlp*	at pci? dev ? function ?	# DECchip 21x4x (and clones) Ethernet
#options 	TLP_MATCH_21040
#options 	TLP_MATCH_21041
#options 	TLP_MATCH_21140
#options 	TLP_MATCH_21142
vr*	at pci? dev ? function ?	# VIA Rhine Fast Ethernet
lmc*	at pci? dev ? function ?	# Lan Media Corp SSI/HSSI/DS3
rl*	at pci? dev ? function ?	# Realtek 8129/8139

# EISA network interfaces
#ep*	at eisa? slot ?			# 3Com 3c579 Ethernet
#fea*	at eisa? slot ?			# DEC DEFEA FDDI
#tlp*	at eisa? slot ?			# DEC DE-425 Ethernet

# ISA Plug-and-Play network interfaces
#ep*	at isapnp?			# 3Com 3c509 Ethernet
#ne*	at isapnp?			# NE2000-compatible Ethernet
#tr*	at isapnp?			# IBM/3COM TROPIC Token-Ring

# PCMCIA network interfaces
#awi*	at pcmcia? function ?		# BayStack 650 (802.11FH)
#cnw*	at pcmcia? function ?		# Xircom/Netwave AirSurfer
#ep*	at pcmcia? function ?		# 3Com 3c589 and 3c562 Ethernet
#mbe*	at pcmcia? function ?		# MB8696x based Ethernet
#ne*	at pcmcia? function ?		# NE2000-compatible Ethernet
#sm*	at pcmcia? function ?		# Megahertz Ethernet
#wi*	at pcmcia? function ?		# Lucent WaveLan IEEE (802.11)

#mhzc*	at pcmcia? function ?		# Megahertz Ethernet/Modem combo cards
#com*	at mhzc?
#sm*	at mhzc?

# ISA network interfaces
#ate0	at isa? port 0x2a0 irq ?		# AT1700
#cs0	at isa? port 0x300 iomem ? irq ? drq ?	# CS8900 Ethernet
#ec0	at isa? port 0x250 iomem 0xd8000 irq 9	# 3Com 3c503 Ethernet
#eg0	at isa? port 0x280 irq 9		# 3C505 ethernet cards
#el0	at isa? port 0x300 irq 9		# 3C501 ethernet cards
#ep0	at isa? port ? irq ?			# 3C509 ethernet cards
#ef0	at isa? port 0x360 iomem 0xd0000 irq 7	# 3C507
#ai0	at isa? port 0x360 iomem 0xd0000 irq 7	# StarLAN
#fmv0	at isa? port 0x2a0 irq ?		# FMV-180 series
#ix0	at isa? port 0x300 irq 10		# EtherExpress/16
#iy0	at isa? port 0x360 irq ?		# EtherExpress PRO 10 ISA
#lc0	at isa? port 0x320 iomem ? irq ?	# DEC EtherWORKS III (LEMAC)
#depca0	at isa? port 0x300 iomem 0xc8000 iosiz 0x8000 irq 5	# DEPCA
#le*	at depca?
#nele0	at isa? port 0x320 irq 9 drq 7		# NE2100
#ntwoc0	at isa? port 0x300 irq 5 iomem 0xc8000 flags 1	# Riscom/N2 sync serial
#le*	at nele?
#bicc0	at isa? port 0x320 irq 10 drq 7		# BICC IsoLan
#le*	at bicc?
#ne0	at isa? port 0x280 irq 9		# NE[12]000 ethernet cards
#ne1	at isa? port 0x300 irq 10
#sm0	at isa? port 0x300 irq 10		# SMC91C9x Ethernet
#tr0	at isa? port 0xa20 iomem 0xd8000 irq ?  # IBM TROPIC based Token-Ring
#tr1	at isa? port 0xa24 iomem 0xd0000 irq ?  # IBM TROPIC based Token-Ring
#tr*	at isa? port ? irq ?			# 3COM TROPIC based Token-Ring
#we0	at isa? port 0x280 iomem 0xd0000 irq 9	# WD/SMC Ethernet
#we1	at isa? port 0x300 iomem 0xcc000 irq 10

# MII/PHY support
exphy*	at mii? phy ?			# 3Com internal PHYs
icsphy*	at mii? phy ?			# Integrated Circuit Systems ICS1890
inphy*	at mii? phy ?			# Intel 82555 PHYs
iophy*	at mii? phy ?			# Intel 82553 PHYs
lxtphy*	at mii? phy ?			# Level One LXT-970 PHYs
nsphy*	at mii? phy ?			# NS83840 PHYs
nsphyter* at mii? phy ?			# NS83843 PHYs
qsphy*	at mii? phy ?			# Quality Semiconductor QS6612 PHYs
sqphy*	at mii? phy ?			# Seeq 80220/80221/80223 PHYs
tlphy*	at mii? phy ?			# ThunderLAN PHYs
tqphy*	at mii? phy ?			# TDK Semiconductor PHYs
ukphy*	at mii? phy ?			# generic unknown PHYs

# USB Controller and Devices

# PCI USB controllers
uhci*	at pci?	dev ? function ?	# Universal Host Controller (Intel)
#ohci*	at pci?	dev ? function ?	# Open Host Controller

# USB bus support
usb*	at uhci?
#usb*	at ohci?

# USB Hubs
uhub*	at usb?
uhub*	at uhub? port ? configuration ? interface ?

# USB Mice
ums*	at uhub? port ? configuration ? interface ?
wsmouse*	at ums? mux 0

# USB Keyboards
ukbd*	at uhub? port ? configuration ? interface ?
wskbd*	at ukbd? console ? mux 1

# USB Generic HID devices
uhid*	at uhub? port ? configuration ? interface ?

# USB Printer
ulpt*	at uhub? port ? configuration ? interface ?

# USB Modem
umodem*	at uhub? port ? configuration ?

# USB Mass Storage
umass*	at uhub? port ? configuration ? interface ?
scsibus* at umass? channel ?

# USB audio
uaudio*	at uhub? port ? configuration ?

# USB Generic driver
ugen*	at uhub? port ?


# Plug-and-Play BIOS and attached devices

pnpbios0 at mainbus0
com*	at pnpbios? index ?
lpt*	at pnpbios? index ?

# mainboard audio chips
#sb*	at pnpbios0 index ?	# NeoMagic 256AV in sb mode
#wss*	at pnpbios0 index ?	# NeoMagic 256AV in wss mode
#ym*	at pnpbios0 index ?	# OPL3-SA3

# com port
#com*	at pnpbios0 index ?

# parallel port
#lpt*	at pnpbios0 index ?

# IDE controller on Toshiba Portege 3000 series (crippled PCI device)
#pciide* at pnpbios0 index ?


# Audio Devices
clcs*	at pci? dev ? function ?	# Cirrus Logic CS4280

# PCI audio devices
eap*	at pci? dev ? function ?	# Ensoniq AudioPCI
eso*	at pci? dev ? function ?	# ESS Solo-1 PCI AudioDrive
fms*	at pci? dev ? function ?	# Forte Media FM801
sv*	at pci? dev ? function ?	# S3 SonicVibes

# ISA Plug-and-Play audio devices
#ess*	at isapnp?			# ESS Tech ES1887, ES1888, ES888 audio
#guspnp*	at isapnp?			# Gravis Ultra Sound PnP audio
#sb*	at isapnp?			# SoundBlaster-compatible audio
#wss*	at isapnp?			# Windows Sound System
#ym*	at isapnp?			# Yamaha OPL3-SA3 audio

# ISA audio devices
# the "aria" probe might give false hits
#aria0	at isa? port 0x290 irq 10 		# Aria
#ess0	at isa? port 0x220 irq 5 drq 1 drq2 5	# ESS 18XX
gus0	at isa? port 0x220 irq 7 drq 1 drq2 6	# Gravis Ultra Sound
pas0	at isa? port 0x220 irq 7 drq 1		# ProAudio Spectrum
pss0	at isa? port 0x220 irq 7 drq 6  	# Personal Sound System
sp0	at pss0 port 0x530 irq 10 drq 0		# 	sound port driver
sb0	at isa? port 0x220 irq 5 drq 1 drq2 5	# SoundBlaster
wss0	at isa? port 0x530 irq 10 drq 0	drq2 1	# Windows Sound System

# OPL[23] FM synthesizers
#opl0	at isa? port 0x388	# use only if not attached to sound card
opl*	at eso?
#opl*	at ess?
opl*	at fms?
opl*	at sb?
opl*	at sv?
opl*	at wss?
#opl*	at ym?

audio*	at clcs?
# Audio support
#audio*	at aria?
audio*	at eap?
audio*	at eso?
#audio*	at ess?
audio*	at fms?
audio*	at gus?
#audio*	at guspnp?
audio*	at pas?
audio*	at sb?
audio*	at sp?
audio*	at sv?
audio*	at uaudio?
audio*	at wss?
#audio*	at ym?

# MPU 401 UARTs
#mpu*	at isa? port 0x330 irq 9        # MPU401 or compatible card
mpu*	at eso?
mpu*	at fms?
mpu*	at sb?
#mpu*	at ym?

# MIDI support
midi*	at eap?			# 137[01] MIDI port
midi*	at mpu?			# MPU 401
midi*	at opl?			# OPL FM synth
midi*	at pcppi?		# MIDI interface to the PC speaker
midi*	at sb?			# SB1 MIDI port

# The spkr driver provides a simple tone interface to the built in speaker.
#spkr0	at pcppi?		# PC speaker


# Mice

# ISA busmice
#lms0	at isa? port 0x23c irq 5	# Logitech bus mouse
#lms1	at isa? port 0x238 irq 5
#mms0	at isa? port 0x23c irq 5	# Microsoft InPort mouse
#mms1	at isa? port 0x238 irq 5
#wsmouse*	at lms? mux 0
#wsmouse*	at mms? mux 0
# backwards compatible versions
#olms0	at isa? port 0x23c irq 5	# Logitech bus mouse
#olms1	at isa? port 0x238 irq 5
#omms0	at isa? port 0x23c irq 5	# Microsoft InPort mouse
#omms1	at isa? port 0x238 irq 5
#opms0	at pc? irq 12		# PS/2 auxiliary port mouse
#opms0	at vt? irq 12		# PS/2 auxiliary port mouse


# Joysticks

# ISA Plug-and-Play joysticks
#joy*	at isapnp?			# Game ports (usually on audio cards)

# ISA joysticks. Probe is a little strange; add only if you have one.
#joy0	at isa? port 0x201


# Miscellaneous Devices

# Planetconnect Satellite receiver driver.
#satlink0 at isa? port 0x300 drq 1


# Pull in optional local configuration
include	"arch/i386/conf/GENERIC.local"


# Pseudo-Devices

# disk/mass storage pseudo-devices
#pseudo-device	ccd		4	# concatenated/striped disk devices
#pseudo-device	raid		4	# RAIDframe disk driver
#pseudo-device	md		1	# memory disk device (ramdisk)
pseudo-device	vnd		4	# disk-like interface to files

# network pseudo-devices
pseudo-device	bpfilter	8	# Berkeley packet filter
#pseudo-device	ipfilter		# IP filter (firewall) and NAT
pseudo-device	loop			# network loopback
#pseudo-device	ppp		2	# Point-to-Point Protocol
#pseudo-device	sl		2	# Serial Line IP
#pseudo-device	strip		2	# Starmode Radio IP (Metricom)
#pseudo-device	tun		2	# network tunneling over tty
#pseudo-device	gre		2	# generic L3 over IP tunnel
#pseudo-device	ipip		2	# IP Encapsulation within IP (RFC 2003)
#pseudo-device	gif		4	# IPv[46] over IPv[46] tunnel (RFC1933)
#pseudo-device	faith		1	# IPv[46] tcp relay translation i/f

# miscellaneous pseudo-devices
pseudo-device	pty		64	# pseudo-terminals
#pseudo-device	tb		1	# tablet line discipline
#pseudo-device	sequencer	1	# MIDI sequencer
# rnd works; RND_COM does not on port i386 yet.
pseudo-device	rnd			# /dev/random and in-kernel generator
#options 	RND_COM			# use "com" randomness as well (BROKEN)

# a pseudo device needed for Coda	# also needs CODA (above)
#pseudo-device	vcoda		4	# coda minicache <-> venus comm.

# mouse & keyboard multiplexor pseudo-devices
pseudo-device	wsmux		2
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