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Date:      Wed, 27 Aug 2003 10:55:05 -0700
From:      Lee Damon <nomad@castle.org>
To:        current@freebsd.org
Subject:   recent 5.1-CURRENT kernel panics on acd0 probe/attach, IBM T30 laptop
Message-ID:  <200308271755.h7RHt5nx043212@castle.org>

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FreeBSD tylendel.castle.org 5.1-CURRENT FreeBSD 5.1-CURRENT #38: Wed Aug 27 09:05:21 PDT 2003     root@tylendel.castle.org:/users/FreeBSD-5.0/obj/users/FreeBSD-5.0/src/sys/TYLENDEL  i386

The kernel I compiled on 20 AUG recognizes acd0 and loggs the following:

Aug 27 08:24:10 tylendel kernel: acd0: CD-RW <UJDA720 DVD/CDRW> at ata1-master U
DMA33
Aug 27 08:24:10 tylendel kernel: cd0 at ata1 bus 0 target 0 lun 0
Aug 27 08:24:10 tylendel kernel: cd0: <MATSHITA UJDA720 DVD/CDRW 1.03> Removable
 CD-ROM SCSI-0 device 
Aug 27 08:24:10 tylendel kernel: cd0: 33.000MB/s transfers
Aug 27 08:24:10 tylendel kernel: cd0: Attempt to query device size failed: NOT R
EADY, Medium not present - tray closed

However, kernels compiled since Monday's SUP get as far as the initial
discovery of the acd0 device and then panic with:

	fatal trap 12: page fault while in kernel mode
	fault virtual address	= 0x0
	fault code		= supervisor write, page not present
	instruction pointer	= 0x8 :0xc015ca8e
	stack pointer		= 0x10 :0xdd79aaac
	frame pointer		= 0x10 :0xdd79aab8
	code segment		= base 0x0, limit 0xfffff, type 0x1b
				= DPL 0, pres 1, def 32 1, gran 1
	processor eflags	= interrupt enabled, resume, IOPL=0
	current process		= 19 (swi 3: cambio)
	kernel: type 12 trap, code=0
	Stopped at	free_hcb+0x2e:	mov1	%eax,0(xedx)
	
When I remove the DVD/CDRW from the system it boots.

Kernel configuration is the one from R. Kevin Oberman with firewire
turned on.

--cut here for kernel conf--
#
# TYLENDEL -- 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.
#

machine		i386
#cpu		I486_CPU
#cpu		I586_CPU
cpu		I686_CPU
ident		TYLENDEL
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 	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 /, 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=5000		#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_SSE		# For MPlayer and others
options		GEOM_BDE		# Enable encrypted partitions

# 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

# Only the "dc" "fxp" and "sis" devices support this mode of operation at
# the time of this writing.
#options		DEVICE_POLLING

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
device	 	atapicam		# Emulate ATAPI devices as SCSI ditto via CAM
options 	ATA_STATIC_ID		# Static device numbering

# 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 for SCSI)
#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		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		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
# WaveLAN/IEEE 802.11 wireless NICs. Note: the WaveLAN/IEEE really
# exists only as a PCMCIA device, so there is no ISA attachment needed
# and resources will always be dynamically assigned by the pccard code.
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		ucom		# tty stuff
#device		uvisor		# palm pilot
#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!)

#
# from 4.x LINT
#
# Controls all "VOXWARE" driver sound devices.  See Luigi's driver
# below for an alternate which may work better for some cards.
#
#device         snd
#device         pas0    at isa? port 0x388 irq 10 drq 6
#device         sb0     at isa? port 0x220 irq 5 drq 1
#device         sbxvi0  at isa? drq 5
#device         sbmidi0 at isa? port 0x330
#device         awe0    at isa? port 0x620
#device         gus0    at isa? port 0x220 irq 12 drq 1
#device         gus0    at isa? port 0x220 irq 12 drq 1 flags 0x3
#device         mss0    at isa? port 0x530 irq 10 drq 1
#device         css0    at isa? port 0x534 irq 5 drq 1 flags 0x08
#device         sscape0 at isa? port 0x330 irq 9 drq 0
#device         trix0   at isa? port 0x330 irq 6 drq 0
#device         sscape_mss0     at isa? port 0x534 irq 5 drq 1
#device         opl0    at isa? port 0x388
#device         mpu0    at isa? port 0x330 irq 6 drq 0
#device         uart0   at isa? port 0x330 irq 5

# The newpcm driver (use INSTEAD of snd0 and all VOXWARE drivers!).
# Note that motherboard sound devices may require options PNPBIOS.
#
# Supported cards include:
# Creative SoundBlaster ISA PnP/non-PnP
# Supports ESS and Avance ISA chips as well.
# Gravis UltraSound ISA PnP/non-PnP
# Crystal Semiconductor CS461x/428x PCI
# Neomagic 256AV (ac97)
# Most of the more common ISA/PnP sb/mss/ess compatable cards.

# For non-pnp sound cards with no bridge drivers only:
#device         pcm0 at isa? irq 10 drq 1 flags 0x0
#
# For PnP/PCI sound cards
device          pcm

# The bridge drivers for sound cards.  These can be seperately configured
# for providing services to the likes of new-midi (not in the tree yet).
# When used with 'device pcm' they also provide pcm sound services.
#
# sbc:  Creative SoundBlaster ISA PnP/non-PnP
#       Supports ESS and Avance ISA chips as well.
# gusc: Gravis UltraSound ISA PnP/non-PnP
# csa:  Crystal Semiconductor CS461x/428x PCI

## For non-PnP cards:
#device         sbc0    at isa? port 0x220 irq 5 drq 1 flags 0x15
#device         gusc0   at isa? port 0x220 irq 5 drq 1 flags 0x13

## Not controlled by `snd'
#device         pca0 at isa? port IO_TIMER1

# From R. Kevin Oberman's kernel def's
device		ccd
device		ichsmb
device		smb
device		smbus
options		KBD_RESETDELAY=500
options		SC_HISTORY_SIZE=1000
--cut here for kernel conf--


nomad
 -----------
The cry has been that when war is declared, all opposition should
therefore be hushed.  A sentiment more unworthy of a free country could
hardly be propagated.  If the doctrine be admitted, rulers have only to
declare war and they are screened at once from scrutiny ...  In war,
then, as in peace, assert the freedom of speech and of the press.
Cling to this as the bulwark of all our rights and privileges.
                -- William Ellery Channing

 -----------                       - Lee "nomad" Damon -          \
play: nomad@castle.org    or castle!nomad                          \
work: nomad@ee.washington.edu                                       \
                                 				    /\
Seneschal, Castle PAUS.                                            /  \
                "Celebrate Diversity"                             /    \



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