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kernel/1448: kernel page fault trap on STABLE/i386




>Number:         1448
>Category:       kernel
>Synopsis:       kernel drops to ddb with page fault trap on STABLE/i386
>Confidential:   yes
>Severity:       critical
>Priority:       medium
>Responsible:    bugs
>State:          open
>Class:          sw-bug
>Submitter-Id:   net
>Arrival-Date:   Sat Oct 14 09:00:01 MDT 2000
>Last-Modified:
>Originator:     Charlie Root
>Organization:
net
>Release:        OpenBSD (stable)
>Environment:
	
	System      : OpenBSD 2.7
	Architecture: OpenBSD.i386
	Machine     : i386

Configuration information from /usr/src/sys/conf (profiling kernel):

  #option		INSECURE	# default to secure

  option		TIMEZONE=0	# time zone to adjust RTC time by
  option		DST=0		# daylight savings time used by RTC
  option		NTP		# hooks supporting the Network Time Protocol

  option		SWAPPAGER	# paging; REQUIRED
  option		DEVPAGER	# mmap() of devices

  option		DDB		# in-kernel debugger
  #option		DDB_SAFE_CONSOLE # allow break into ddb during boot
  makeoptions	DEBUG="-g"	# compile full symbol table
  #makeoptions	PROF="-pg"	# build profiled kernel
  #option		GPROF		# kernel profiling, kgmon(8)
  option		DIAGNOSTIC	# internal consistency checks
  option		KTRACE		# system call tracing, a la ktrace(1)
  option		KMEMSTATS	# collect malloc(9) statistics

  option		CRYPTO		# Cryptographic framework

  option		SYSVMSG		# System V-like message queues
  option		SYSVSEM		# System V-like semaphores
  option		SYSVSHM		# System V-like memory sharing

  option		UVM_SWAP_ENCRYPT# support encryption of pages going to swap

  #option		COMPAT_09	# Kernel compatibility with NetBSD 0.9,
  #option		COMPAT_10	# NetBSD 1.0,
  #option		COMPAT_11	# NetBSD 1.1,
  #option		COMPAT_43	# and 4.3BSD
  #option		TCP_COMPAT_42	# TCP bug compatibility with 4.2BSD

  option		LKM		# loadable kernel modules

  #option		MACHINE_NONCONTIG	# allow for non-contiguous memory
  #option		RAM_DISK_HOOKS	# machine dep. functions

  option		FFS		# UFS
  option		QUOTA		# UFS quotas
  #option		LFS		# log-structured file system
  option		EXT2FS		# Second Extended Filesystem
  option		EXT2FS_SYSTEM_FLAGS	# affects APPEND and IMMUTABLE flags;
  					# see chflags(1)
  #option		MFS		# memory file system
  #option		XFS		# xfs filesystem

  option		TCP_SACK	# Selective Acknowledgements for TCP
  option		TCP_FACK	# Forward Acknowledgements for TCP
  option		TCP_SIGNATURE	# TCP MD5 Signatures, for BGP routing sessions

  option		NFS		# Network File System
  option		NFSCLIENT	# Network File System client
  option		NFSSERVER	# Network File System server

  option		CD9660		# ISO 9660 + Rock Ridge file system
  option		MSDOSFS		# MS-DOS file system
  option		FDESC		# /dev/fd
  option		FIFO		# FIFOs; RECOMMENDED
  option		KERNFS		# /kern
  option		NULLFS		# loopback file system
  #option		PORTAL		# dynamically created filesystem objects
  option		PROCFS		# /proc
  option		UMAPFS		# NULLFS + uid and gid remapping
  #option		UNION		# union file system

  option		GATEWAY		# packet forwarding
  #option		MROUTING	# IP multicast routers
  option		INET		# IP + ICMP + TCP + UDP
  #option		INET6		# IPv6 (needs INET)
  option		IPSEC		# IPsec
  option		KEY		# PF_KEY (implied by IPSEC)
  option		ENCDEBUG	# net.ipsec.encap.encdebug; see sysctl(8)
  #option		NS		# XNS
  #option		NSIP		# XNS tunneling over IP
  #option		IPX		# IPX+SPX
  #option		IPXIP		# IPX tunneling over IP
  #option		ISO,TPIP	# OSI
  #option		EON		# OSI tunneling over IP
  #option		NETATALK	# AppleTalk
  #option		CCITT,LLC,HDLC	# X.25
  option		IPFILTER	# IP packet filter for security
  option		IPFILTER_LOG	# use /dev/ipl to log IPF
  option		IPFILTER_DEFAULT_BLOCK	# block unmatched packets
  option		PPP_BSDCOMP	# PPP BSD compression
  option		PPP_DEFLATE
  option		PPP_FILTER	# pcap(3) based filtering

  #option		PCVT_NSCREENS = 12
  option		PCVT_CTRL_ALT_DEL	# set machdep.kbdreset to 1

  option		SCSIDEBUG

  pseudo-device	loop	2	# network loopback
  pseudo-device	bpfilter 8	# packet filter
  pseudo-device	sl	2	# CSLIP
  pseudo-device	ppp	2	# PPP
  pseudo-device	sppp		# Sync PPP/HDLC
  pseudo-device	tun	2	# network tunneling over tty
  pseudo-device	enc	4	# IPSEC needs the encapsulation interface
  #pseudo-device	strip	1	# Starmode Radio IP interface

  pseudo-device	pty	128	# pseudo-terminals
  pseudo-device	tb	1	# tablet line discipline
  pseudo-device	vnd	4	# paging to files
  pseudo-device	ccd	4	# concatenated disk devices
  pseudo-device	ksyms	1	# kernel symbols device
  pseudo-device	bridge	2	# network bridging support
  #pseudo-device	vlan 	2	# IEEE 802.1Q VLAN 
  pseudo-device	gre	1	# GRE encapsulation interface

  option		BOOT_CONFIG	# add support for boot -c

Configuration information from /usr/src/sys/arch/i386/conf (profiling kernel):

  machine		i386		# architecture, used by config; REQUIRED

  include "../../../conf/LOCAL_CONFIGURATION"

  option		I386_CPU	# CPU classes; at least one is REQUIRED
  option		I486_CPU
  option		I586_CPU
  option		I686_CPU
  option		GPL_MATH_EMULATE	# floating point emulation

  option		UVM		# use the UVM virtual memory system

  #option		VM86		# Virtual 8086 emulation
  #option		USER_LDT	# user-settable LDT; used by WINE
  #option		XSERVER		# diddle with console driver
  #option		APERTURE	# in-kernel aperture driver for XFree86

  #option		DUMMY_NOPS	# speed hack; recommended

  option		FFS_SOFTUPDATES	# Soft updates

  #option		COMPAT_SVR4	# binary compatibility with SVR4
  #option		COMPAT_IBCS2	# binary compatibility with SCO and ISC
  #option		COMPAT_LINUX	# binary compatibility with Linux
  #option		COMPAT_FREEBSD	# binary compatibility with FreeBSD
  #option		COMPAT_BSDOS	# binary compatibility with BSD/OS
  #option		COMPAT_NOMID	# binary compatibility with a.out
  #				# executables lacking machine ID

  maxusers	32		# estimated number of users

  config		bsd	swap generic

  mainbus0 at root

  bios0	at mainbus0
  apm0	at bios0

  isa0	at mainbus0
  isa0	at pcib?
  #eisa0	at mainbus0
  pci*	at mainbus0 bus ?

  option		PCIVERBOSE
  option		EISAVERBOSE
  option		PCMCIAVERBOSE
  option		USBVERBOSE

  pchb*	at pci? dev ? function ?	# PCI-Host bridges
  #ppb*	at pci? dev ? function ?	# PCI-PCI bridges
  #pci*	at ppb? bus ?
  #pci*	at pchb? bus ?
  pcib*	at pci? dev ? function ?	# PCI-ISA bridges (do nothing)

  # ISA PCMCIA controllers
  #pcic0	at isa? port 0x3e0 iomem 0xd0000 iosiz 0x10000
  #pcic1	at isa? port 0x3e2 iomem 0xe0000 iosiz 0x4000
  #pcic2	at isa? port 0x3e4 iomem 0xe0000 iosiz 0x4000

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

  # CardBus bus support (also see NOTE below)
  #cardbus*	at cardslot?
  #pcmcia*		at cardslot?
  #cbb*		at pci? dev ? function ?
  #cardslot*	at cbb?

  # NOTE: You may need to uncomment the following line for CardBus to work
  #option	BIOS32,PCIBIOS,PCIBIOS_INTR_FIXUP,PCIBIOS_BUS_FIXUP

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

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

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

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

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

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

  # USB Modems
  #umodem*	at uhub? port ? configuration ?
  #ucom*	at umodem?

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

  # USB Ethernet adapters
  #aue*	at uhub? port ?			# ADMtek AN986 Pegasus based adapters
  #cue*	at uhub? port ?			# CATC USB-EL1201A based adapters
  #kue*	at uhub? port ?			# Kawasaki KL5KUSB101B based adapters

  # Diamond Multimedia Rio 500
  #urio*	at uhub? port ?

  # USB Generic driver
  #ugen*	at uhub? port ? configuration ? interface ?

  #puc*	at pci?				# PCI "universal" communication device

  npx0	at isa? port 0xf0 irq 13	# math coprocessor
  isadma0	at isa?
  isapnp0	at isa?

  #pc0	at isa? port 0x60 irq 1		# generic PC console device
  vt0	at isa? port 0x60 irq 1

  pcppi0	at isa?
  sysbeep0	at pcppi?

  pccom0	at isa? port 0x3f8 irq 4	# standard PC serial ports
  pccom1	at isa? port 0x2f8 irq 3
  pccom2	at isa? port 0x3e8 irq 7
  #pccom3	at isa? port 0x2e8 irq 9	# (conflicts with some video cards)
  #ast0	at isa? port 0x1a0 irq 5	# AST 4-port serial card
  #ast1	at isa? port 0x2a0 irq 6	# 2nd AST 4-port serial card
  #pccom*	at ast? slave ?
  #boca0	at isa? port 0x100 irq 5	# BOCA 8-port serial cards
  #pccom*	at boca? slave ?
  #rtfps0	at isa? port 0x1230 irq 10	# RT 4-port serial cards
  #pccom*	at rtfps? slave ?
  #hsq0	at isa? port 0x140 irq 10	# Hostess 4-port serial card
  #pccom*	at hsq? slave ?
  #pccom*	at pcmcia? function ?		# PCMCIA modems/serial ports
  #pccom*	at isapnp?
  #pccom*	at puc? port ?

  # option for using CD1400 handshaking for incoming data
  # requires a special cable that exchanges the RTS and DTR lines
  # options CY_HW_RTS
  #cy0	at isa? iomem 0xd4000 irq 12	# ISA cyclom serial card
  #cy*	at pci?				# PCI cyclom serial card

  #lpt0	at isa? port 0x378 irq 7	# standard PC parallel ports
  #lpt1	at isa? port 0x278
  #lpt2	at isa? port 0x3bc
  #lpt*	at puc? port ?

  #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
  #pms0	at pckbd? irq 12		# PS/2 auxiliary port mouse

  #bt0	at isa? port 0x330 irq ? drq ?	# BusLogic [57]4X SCSI controllers
  #bt1	at isa? port 0x334 irq ? drq ?	# BusLogic [57]4X SCSI controllers
  #bt2	at isa? port ? irq ?
  #scsibus* at bt?
  #aha0	at isa? port 0x330 irq ? drq ?	# Adaptec 154[02] SCSI controllers
  #aha1	at isa? port 0x334 irq ? drq ?	# Adaptec 154[02] SCSI controllers
  #aha*	at isapnp?
  #scsibus* at aha?
  #ahb*	at eisa? slot ?			# Adaptec 174[024] SCSI controllers
  #scsibus* at ahb?
  #ahc0	at isa? port ? irq ?		# Adaptec 284x SCSI controllers
  #ahc*	at eisa? slot ?			# Adaptec 274x, aic7770 SCSI controllers
  #ahc*	at pci? dev ? function ?	# Adaptec 2940 SCSI controllers
  #scsibus* at ahc?
  #dpt*	at pci? dev ? function ?        # DPT SmartCache/SmartRAID PCI
  #dpt*	at eisa? slot ?			# DPT SmartCache/SmartRAID EISA
  #scsibus* at dpt?
  #gdt*	at pci? dev ? function ?	# ICP Vortex GDT RAID controllers
  #scsibus* at gdt?
  #isp*	at pci? dev ? function ?	# Qlogic ISP [12]0x0 SCSI/FibreChannel
  #scsibus* at isp?
  #aic0	at isa? port 0x340 irq 11	# Adaptec 152[02] SCSI controllers
  #aic*	at pcmcia? function ?		# PCMCIA based aic SCSI controllers
  #scsibus* at aic?
  #ncr*	at pci? dev ? function ?	# NCR 538XX SCSI controllers
  #scsibus* at ncr?
  #adv*	at pci? dev ? function ?	# AdvanSys 1200A/B and ULTRA SCSI
  #scsibus* at adv?
  #adw*	at pci? dev ? function ?	# AdvanSys ULTRA WIDE SCSI
  #scsibus* at adw?
  #sea0	at isa? iomem 0xc8000 irq 5     # Seagate ST0[12] SCSI controllers
  #scsibus* at sea?
  #uha0	at isa? port 0x330 irq ? drq ?	# UltraStor [13]4f SCSI controllers
  #uha1	at isa? port 0x334 irq ? drq ?	# UltraStor [13]4f SCSI controllers
  #uha*	at eisa? slot ?			# UltraStor 24f SCSI controllers
  #scsibus* at uha?
  #wds0	at isa? port 0x350 irq 15 drq 6	# WD7000 and TMC-7000 controllers
  #wds1	at isa? port 0x358 irq 11 drq 5
  #scsibus* at wds?

  #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 ?	# unknown SCSI

  fdc0	at isa? port 0x3f0 irq 6 drq 2	# standard PC floppy controllers
  #fdc1	at isa? port 0x370 irq ? drq ?
  fd*	at fdc? drive ?

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

  # IDE controllers
  pciide* at pci ? dev ? function ? flags 0x0000

  #wdc0	at isa? port 0x1f0 irq 14 flags 0x00
  #wdc1	at isa? port 0x170 irq 15 flags 0x00
  #wdc*	at pcmcia? function ?
  wdc*	at isapnp?

  # IDE hard drives
  #wd*	at wdc? channel ? drive ? flags 0x0000
  wd*	at pciide? channel ? drive ? flags 0x0000

  # ATAPI<->SCSI
  #atapiscsi* at wdc? channel ?
  atapiscsi* at pciide? channel ?
  scsibus* at atapiscsi?

  #wt0	at isa? port 0x308 irq 5 drq 1	# Archive and Wangtek QIC tape drives

  # Networking devices
  #we0	at isa? port 0x280 iomem 0xd0000 irq 9	# WD/SMC 80x3 ethernet
  #we1	at isa? port 0x300 iomem 0xcc000 irq 10	#
  #we2	at isa? port 0x280 iomem 0xd0000 irq 3	# WD/SMC 80x3 ethernet
  #we*	at isapnp?
  #ec0	at isa? port 0x250 iomem 0xd8000 irq 9	# 3C503 ethernet
  #ne0	at isa? port 0x240 irq 9		# NE[12]000 ethernet
  #ne1	at isa? port 0x300 irq 10		# NE[12]000 ethernet
  #ne2	at isa? port 0x280 irq 9		# NE[12]000 ethernet
  #ne*	at isapnp?				# NE[12]000 PnP ethernet
  #eg0	at isa? port 0x310 irq 5		# 3C505/Etherlink+ ethernet
  #el0	at isa? port 0x300 irq 9		# 3C501 ethernet
  #ep0	at isa? port ? irq ?			# 3C509 ethernet
  #ep*	at isapnp?				# 3C509 PnP ethernet
  #ep*	at isa? port ? irq ?			# 3C509 ethernet
  #ef*	at isapnp?				# 3C515 PnP ethernet
  #ie0	at isa? port 0x360 iomem 0xd0000 irq 7	# StarLAN and 3C507
  #ie1	at isa? port 0x300 irq 10		# EtherExpress
  #le0	at isa? port 0x360 irq 15 drq 6		# IsoLan, NE2100, and DEPCA
  #ex0	at isa? port 0x320 irq 5		# Intel EtherExpress PRO/10
  #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
  #ep0	at eisa? slot ?
  #ep*	at eisa? slot ?				# 3C579 ethernet
  #fea*	at eisa? slot ?				# DEC DEFEA FDDI
  #lmc*	at pci? dev ? function ?		# Lan Media Corp SSI/T3/HSSI
  #le*	at pci? dev ? function ?		# PCnet-PCI based ethernet
  #le*	at isapnp?
  #de*	at pci? dev ? function ?		# DC21X4X-based ethernet
  fxp*	at pci? dev ? function ?		# EtherExpress 10/100B ethernet
  #ne*	at pci? dev ? function ?		# NE2000-compat ethernet
  #ep0	at pci? dev ? function ?		# 3C59x ethernet
  #ep*	at pci? dev ? function ?		# 3C59x ethernet
  #ne*	at pcmcia? function ?			# PCMCIA based NE2000 ethernet
  #ep*	at pcmcia? function ?			# PCMCIA based 3C5xx ethernet
  #sm*	at pcmcia? function ?			# PCMCIA based sm ethernet
  #xe*	at pcmcia? function ?			# Xircom ethernet
  #fpa*	at pci? dev ? function ?		# DEC DEFPA FDDI
  #xl*	at pci? dev ? function ?		# 3c9xx ethernet
  #xl*	at cardbus? dev ? function ?		# 3c575 ethernet
  #rl*	at pci? dev ? function ?		# RealTek 81[23]9 ethernet
  #tx*	at pci? dev ? function ?		# SMC 83C170 EPIC ethernet
  #tl*	at pci? dev ? function ?		# Compaq Thunderlan ethernet
  #vr*	at pci? dev ? function ?		# VIA Rhine ethernet
  #wb*	at pci? dev ? function ?		# Winbond W89C840F ethernet
  #ti*	at pci? dev ? function ?		# Alteon Tigon 1Gb ethernet
  #sf*	at pci? dev ? function ?		# Adaptec AIC-6915 ethernet
  #sis*	at pci? dev ? function ?		# SiS 900/7016 ethernet
  #ste*	at pci? dev ? function ?		# Sundance ST201 ethernet
  #dc*	at pci? dev ? function ?		# 21143, "tulip" clone ethernet
  #skc*	at pci? dev ? function ?		# SysKonnect GEnesis 984x
  #sk*	at skc?					#  each port of above
  #wx*	at pci? dev ? function ?		# Intel Pro/1000 ethernet

  # Wireless network cards
  #wi*	at pcmcia? function ?			# WaveLAN IEEE 802.11DS
  #awi*	at pcmcia? function ?			# Bay Networks IEEE 802.11FH
  #an*	at pci? dev ? function ?		# Aironet IEEE 802.11DS
  #an*	at pcmcia? function ?			# Aironet IEEE 802.11DS
  #cnw*	at pcmcia? function ?			# Xircom Netwave
  #ray*	at pcmcia? function ?			# Raylink Aviator2.4/Pro 802.11FH

  # Media Independent Interface (mii) drivers
  #exphy*	at mii? phy ?				# 3Com internal PHYs
  inphy*	at mii? phy ?				# Intel 82555 PHYs
  #iophy*	at mii? phy ?				# Intel 82553 PHYs
  #icsphy*	at mii? phy ?				# ICS 1890 PHYs
  #lxtphy*	at mii? phy ?			# Level1 LXT970 PHYs
  nsphy*	at mii? phy ?				# NS and compatible PHYs
  #qsphy*	at mii? phy ?				# Quality Semi QS6612 PHYs
  #sqphy*	at mii? phy ?				# Seeq 8x220 PHYs
  #rlphy* at mii? phy ?				# RealTek 8139 internal PHYs
  #mtdphy*	at mii? phy ?			# Myson MTD972 PHYs
  #dcphy*	at mii? phy ?				# Digital Clone PHYs
  #ukphy*	at mii? phy ?				# "unknown" PHYs

  #pss0	at isa? port 0x220 irq 7 drq 6		# Personal Sound System
  #sp0	at pss0 port 0x530 irq 10 drq 0		# sound port driver

  #eap*	at pci? dev ? function ?		# Ensoniq AudioPCI S5016
  #eso*	at pci? dev ? function ?		# ESS Solo-1 PCI AudioDrive
  #sv*	at pci? dev ? function ?		# S3 SonicVibes (S3 617)
  #neo*	at pci? dev ? function ?		# NeoMagic 256AV/ZX
  #cmpci*	at pci? dev ? function ?		# C-Media CMI8338/8738
  sb0	at isa? port 0x220 irq 5 drq 1		# SoundBlaster
  sb*	at isapnp?
  #ess*	at isapnp?				# ESS Tech ES188[78], ES888
  #wss0	at isa? port 0x530 irq 10 drq 0		# Windows Sound System
  #wss*	at isapnp?
  #pas0	at isa? port 0x220 irq 7 drq 1		# ProAudio Spectrum
  #gus0	at isa? port 0x220 irq 7 drq 1 drq2 6	# Gravis UltraSound (drq2 is record drq)
  #ym*	at isapnp?
  #mpu*	at isapnp?

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

  # MIDI support
  midi*	at pcppi?		# MIDI interface to the PC speaker
  midi*	at sb?			# SB MPU401 port
  midi*	at opl?			# OPL FM synth
  #midi*	at ym?
  #midi*	at mpu?

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

  #Audio Support
  audio*  at sb?
  #audio*  at gus?
  #audio*  at pas?
  #audio*  at sp?
  #audio*	at ess?
  #audio*  at wss?
  #audio*  at ym?
  #audio*  at eap?
  #audio*	at eso?
  #audio*  at sv?
  #audio*	at neo?
  #audio*	at cmpci?
  #audio*	at uaudio?

  #bktr0   at pci? dev ? function ?

  # Joystick driver. Probe is a little strange; add only if you have one.
  #joy0	at isa? port 0x201
  joy*	at isapnp?

  #wdt0	at pci? dev ? function ?	# Ind Computer Source PCI-WDT50x driver

  # crypto support
  #hifn*	at pci? dev ? function ?	# Hi/fn 7751 crypto card

  pseudo-device	pctr		1
  pseudo-device	mtrr		1	# Memory range attributes control
  pseudo-device	sequencer	1
  #pseudo-device	raid		4	# RAIDframe disk driver
  # for IPv6
  pseudo-device	gif		4
  #pseudo-device	faith		1

  option DEBUG_ISAPNP

>Description:
	
uvm_fault(0xe73c1008,0x0,0,1) -> 1
kernel: page fault trap, code=0
Stopped at _syscall+0x14: movl 0x38(%ebp),%eax
ddb>

ddb> show registers
es 0x10
ds 0x10
edi 0x5d8000
esi 0x5d8800
ebp 0xe73bbfa8 _end+0x7101570
ebx 0
edb 0xdfbfd0bc
ecx 0xe0100f99 syscall1+0x1f
eax 0xe0225bba _syscall+0xe
eip 0xe0225bc0 _syscall+0x14
cs 0x8
eflags 0x10202
esp 0xe73bbf50 _end+0x7101518
ss 0xe73b0010 _end+0x70f55d8
_syscall+0x14: movl 0x38(%ebp),%eax

ddb> show map
MAP 0xe0225bc0: [0xc45589c0->0x8908558d]
  #ent=-959939199, sz=1946157056, ref=-1875907817, version=392494977, flags=0x9090901a
uvm_fault(0xe73c1008, 0x83384000, 0, 1) -> 1
kernel: page fault trap, code=0
Faulted in DDB; continuing...
ddb> show map
MAP 0xe0225bc0: [0xc45589c0->0x8908558d]
  #ent=-959939199, sz=1946157056, ref=-1875907817, version=392494977, flags=0x9090901a
uvm_fault(0xe73c1008, 0x83384000, 0, 1) -> 1
kernel: page fault trap, code=0
Faulted in DDB; continuing...
ddb> show object
OBJECT 0xe0225bc0: pgops=0xf88303e0, npages=-387964325, refs=-1015592
ddb> show all procs
[abbreviated]:

  cap_mkdb, make[wait], sh[pause], sh[pause], make[wait], sh[pause], sh[pause], make[wait], sh[pause], getty[ttyin], getty[ttyin], less [nanosleep], ksh[pause], sshd[select], make[wait], piperd[tee], ksh[pause], ksh[pause], sshd[select], tail[nanosleep], ksh[pause], tail[nanosleep], ksh[pause], sshd[select], sshd[select], sleep[nanosleep], sshd[select], sleep[nanosleep], tail[nanosleep], ksh[pause], sleep[nanosleep], sleep[nanosleep], getty[ttyin], getty[ttyin], getty[ttyin], cron[nanosleep], sshd[select], inetd[select], portmap[select], ipmon[nanosleep], syslogd, apm0[apmev], update[syncer], pagedaemon[daemon_sl], init[wait], swapper[scheduler]

ddb> trace
_syscall() at _syscall+0x14
- --- syscall (number 3) ---
0x40084193:

ddb> continue
[ok]

Output of system build continues:

===> share/termtypes
/usr/src/share/termtypes/../../usr.bin/tic/obj/tic -I -x /usr/src/share/termtypes/termtypes.master | sed  -e 's,/usr/share/lib/tabset,/usr/share/tabset,g'  -e 's,/usr/lib/tabset,/usr/share/tabset,g'  > terminfo.src
cap_mkdb -i -f terminfo terminfo.src
cap_mkdb: ignored duplicate: any ansi terminal with pessimistic assumptions
cap_mkdb: Record not tc expanded: vt220d|DEC VT220 in vt100 mode with DEC function key labeling
cap_mkdb: ignored duplicate: xterm terminal emulator (XFree86 4.0 Window System)
cap_mkdb: ignored duplicate: xterm terminal emulator (X Window System)
cap_mkdb: ignored duplicate: NCSA Telnet 2.7 for Macintosh in vt220-8 mode
cap_mkdb: ignored duplicate: NCSA Telnet 2.6 for Macintosh in vt220-8 mode
cap_mkdb: ignored duplicate: SONY NEWS vt100 emulator common entry
cap_mkdb: ignored duplicate: old sony vt100 emulator 33 lines
cap_mkdb: ignored duplicate: wyse 520 with 48 data lines
cap_mkdb: ignored duplicate: wyse 520 with 36 data lines and EPC keyboard
cap_mkdb: ignored duplicate: wyse 520 with 48 data lines and EPC keyboard
cap_mkdb: ignored duplicate: IBM 6153 Black & White display
cap_mkdb: ignored duplicate: IBM 6153 Black & White display
cap_mkdb: ignored duplicate: NCR Intecolor emulation of the 2900_260C with an ANSI keyboard
[here the kernel was brought into ddb]
/usr/src/share/termtypes/../../usr.bin/tic/obj/tic -C -x /usr/src/share/termtypes/termtypes.master | sed  -e 's,/usr/share/lib/tabset,/usr/share/tabset,g'  -e 's,/usr/lib/tabset,/usr/share/tabset,g'  > termcap.src
warning: hds200 entry is 1133 bytes long
cap_mkdb -f termcap termcap.src
cap_mkdb: ignored duplicate: any ansi terminal with pessimistic assumptions
cap_mkdb: Record not tc expanded: vt220d|DEC VT220 in vt100 mode with DEC function key labeling
cap_mkdb: ignored duplicate: xterm terminal emulator (XFree86 4.0 Window System)
cap_mkdb: ignored duplicate: xterm terminal emulator (X Window System)
cap_mkdb: ignored duplicate: NCSA Telnet 2.7 for Macintosh in vt220-8 mode
cap_mkdb: ignored duplicate: NCSA Telnet 2.6 for Macintosh in vt220-8 mode
cap_mkdb: ignored duplicate: SONY NEWS vt100 emulator common entry
cap_mkdb: ignored duplicate: old sony vt100 emulator 33 lines
...

Also, it has been commonplace for me to receive kernel messages of the
following nature (not sure why these occur):

Oct 14 04:39:14 /bsd: arpresolve: can't allocate llinfo
Oct 14 05:06:14 /bsd: arpresolve: can't allocate llinfo
Oct 14 05:33:14 /bsd: arpresolve: can't allocate llinfo
Oct 14 06:00:14 /bsd: arpresolve: can't allocate llinfo

Here is the entry for the fault traps:

Oct 14 08:47:03 /bsd: uvm_fault(0xe73c1008, 0x0, 0, 1) -> 1
Oct 14 08:47:14 /bsd: uvm_fault(0xe73c1008, 0x83384000, 0, 1) -> 1

>How-To-Repeat:
	
	Essentially the system was being built as indicated above `make build';
	particularly; cap_mkdb.  Still the problem occured during the middle of
	the execution of that command, and there is no clear reason why cap_mkdb
	is the problem (although this was the only computationally-intensive task
	running at the time).

>Fix:
	
	After entering `continue' at the ddb prompt, the system continued operation;
	however, I rebooted anyway.

Michael Lee Crogan -- <mcrogan@purdue.edu> -- Purdue University

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