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From: Harry Coin <harrycoin@quietfountain.com>
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Subject: i386/78929: atapicam prevents boot, system hangs
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>Number:         78929
>Category:       i386
>Synopsis:       atapicam prevents boot, system hangs
>Confidential:   no
>Severity:       critical
>Priority:       high
>Responsible:    freebsd-i386
>State:          open
>Quarter:        
>Keywords:       
>Date-Required:
>Class:          sw-bug
>Submitter-Id:   current-users
>Arrival-Date:   Wed Mar 16 19:00:08 GMT 2005
>Closed-Date:
>Last-Modified:
>Originator:     Harry Coin
>Release:        5.3 release, 5.4 pre1, 5.4 pre 2
>Organization:
self
>Environment:
Copyright (c) 1992-2004 The FreeBSD Project.
Copyright (c) 1979, 1980, 1983, 1986, 1988, 1989, 1991, 1992, 1993, 1994
	The Regents of the University of California. All rights reserved.
FreeBSD 5.3-RELEASE-p5 #10: Wed Mar 16 11:22:54 CST 2005
 
>Description:
Bootup locks under 5.3 release, 5.4 pre1 and 5.4 pre2 if atapicam is included, and is normal if atapicam is not included.  The lock occurs 
right after this line in the dmesg

ata4-master SATA150
ad10: 35304MB <WDC WD360GD-00FNA0/35.06K35> [71730/16/63] at ata5-master SATA150

The line never seen is 

SMP: AP CPU #1 Launched!

The error message is that an interrupt storm was detected on int18: em0 and uhci2++.  I can still use the scroll lock to scan up and down, but the system never moves on from that point -- ever.

The system is an ASUS P4C800-E with a P4 2.8Ghz.  The only unusual aspects are that there is no AGP video, but 3 dual head PCI cards.  Also there are some digital camera reader 'disk' slots on one of the USB ports.  What follows is the dmesg of a sucessful boot, then the kernel conf file.  To make it crash, put ATAPICAM in.  To make it work, take ATAPICAM out.

Copyright (c) 1992-2004 The FreeBSD Project.
Copyright (c) 1979, 1980, 1983, 1986, 1988, 1989, 1991, 1992, 1993, 1994
	The Regents of the University of California. All rights reserved.
FreeBSD 5.3-RELEASE-p5 #10: Wed Mar 16 11:22:54 CST 2005
    root@development.quietfountain.com:/usr/obj/usr/src/sys/DEVELOPMENT
Timecounter "i8254" frequency 1193182 Hz quality 0
CPU: Intel(R) Pentium(R) 4 CPU 2.80GHz (2798.67-MHz 686-class CPU)
  Origin = "GenuineIntel"  Id = 0xf29  Stepping = 9
  Features=0xbfebfbff<FPU,VME,DE,PSE,TSC,MSR,PAE,MCE,CX8,APIC,SEP,MTRR,PGE,MCA,CMOV,PAT,PSE36,CLFLUSH,DTS,ACPI,MMX,FXSR,SSE,SSE2,SS,HTT,TM,PBE>
  Hyperthreading: 2 logical CPUs
real memory  = 2146631680 (2047 MB)
avail memory = 2090983424 (1994 MB)
ACPI APIC Table: <A M I  OEMAPIC >
FreeBSD/SMP: Multiprocessor System Detected: 2 CPUs
 cpu0 (BSP): APIC ID:  0
 cpu1 (AP): APIC ID:  1
ioapic0 <Version 2.0> irqs 0-23 on motherboard
npx0: [FAST]
npx0: <math processor> on motherboard
npx0: INT 16 interface
acpi0: <A M I OEMXSDT> on motherboard
acpi0: Power Button (fixed)
Timecounter "ACPI-fast" frequency 3579545 Hz quality 1000
acpi_timer0: <24-bit timer at 3.579545MHz> port 0x808-0x80b on acpi0
cpu0: <ACPI CPU> on acpi0
cpu1: <ACPI CPU> on acpi0
pcib0: <ACPI Host-PCI bridge> port 0xcf8-0xcff on acpi0
pci0: <ACPI PCI bus> on pcib0
agp0: <Intel 82875P host to AGP bridge> mem 0xfe800000-0xfebfffff at device 0.0 on pci0
pcib1: <ACPI PCI-PCI bridge> at device 1.0 on pci0
pcib1: could not get PCI interrupt routing table for \\_SB_.PCI0.P0P1 - AE_NOT_FOUND
pci1: <ACPI PCI bus> on pcib1
pcib2: <ACPI PCI-PCI bridge> at device 3.0 on pci0
pci2: <ACPI PCI bus> on pcib2
em0: <Intel(R) PRO/1000 Network Connection, Version - 1.7.35> port 0xcf80-0xcf9f mem 0xf84e0000-0xf84fffff irq 18 at device 1.0 on pci2
em0: Ethernet address: 00:0c:6e:79:79:24
em0:  Speed:N/A  Duplex:N/A
uhci0: <Intel 82801EB (ICH5) USB controller USB-A> port 0xeec0-0xeedf irq 16 at device 29.0 on pci0
uhci0: [GIANT-LOCKED]
usb0: <Intel 82801EB (ICH5) USB controller USB-A> on uhci0
usb0: USB revision 1.0
uhub0: Intel UHCI root hub, class 9/0, rev 1.00/1.00, addr 1
uhub0: 2 ports with 2 removable, self powered
uhci1: <Intel 82801EB (ICH5) USB controller USB-B> port 0xef00-0xef1f irq 19 at device 29.1 on pci0
uhci1: [GIANT-LOCKED]
usb1: <Intel 82801EB (ICH5) USB controller USB-B> on uhci1
usb1: USB revision 1.0
uhub1: Intel UHCI root hub, class 9/0, rev 1.00/1.00, addr 1
uhub1: 2 ports with 2 removable, self powered
uhid0: American Power Conversion Back-UPS RS 1500 FW:8.g4 .D USB FW:g4, rev 1.10/1.06, addr 2, iclass 3/0
uhci2: <Intel 82801EB (ICH5) USB controller USB-C> port 0xef20-0xef3f irq 18 at device 29.2 on pci0
uhci2: [GIANT-LOCKED]
usb2: <Intel 82801EB (ICH5) USB controller USB-C> on uhci2
usb2: USB revision 1.0
uhub2: Intel UHCI root hub, class 9/0, rev 1.00/1.00, addr 1
uhub2: 2 ports with 2 removable, self powered
umass0: Y-E DATA Silicon Media R/W, rev 1.10/1.03, addr 2
uhci3: <Intel 82801EB (ICH5) USB controller USB-D> port 0xef40-0xef5f irq 16 at device 29.3 on pci0
uhci3: [GIANT-LOCKED]
usb3: <Intel 82801EB (ICH5) USB controller USB-D> on uhci3
usb3: USB revision 1.0
uhub3: Intel UHCI root hub, class 9/0, rev 1.00/1.00, addr 1
uhub3: 2 ports with 2 removable, self powered
pci0: <serial bus, USB> at device 29.7 (no driver attached)
pcib3: <ACPI PCI-PCI bridge> at device 30.0 on pci0
pci3: <ACPI PCI bus> on pcib3
pci3: <multimedia, audio> at device 9.0 (no driver attached)
pci3: <input device> at device 9.1 (no driver attached)
nvidia0: <GeForce FX 5200> mem 0xf0000000-0xf7ffffff,0xfd000000-0xfdffffff irq 22 at device 10.0 on pci3
nvidia0: [GIANT-LOCKED]
nvidia1: <GeForce FX 5200> mem 0xe8000000-0xefffffff,0xfc000000-0xfcffffff irq 23 at device 11.0 on pci3
nvidia1: [GIANT-LOCKED]
nvidia2: <GeForce FX 5200> mem 0xe0000000-0xe7ffffff,0xfb000000-0xfbffffff irq 20 at device 12.0 on pci3
nvidia2: [GIANT-LOCKED]
pcib4: <PCI-PCI bridge> at device 13.0 on pci3
pci4: <PCI bus> on pcib4
pci4: <multimedia> at device 4.0 (no driver attached)
pci4: <multimedia> at device 8.0 (no driver attached)
fwohci0: <Texas Instruments TSB12LV26> mem 0xf85f8000-0xf85fbfff,0xf85ff000-0xf85ff7ff irq 21 at device 12.0 on pci4
fwohci0: OHCI version 1.0 (ROM=1)
fwohci0: No. of Isochronous channels is 4.
fwohci0: EUI64 00:30:8d:0f:00:b1:54:28
fwohci0: Phy 1394a available S400, 3 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)
isab0: <PCI-ISA bridge> at device 31.0 on pci0
isa0: <ISA bus> on isab0
atapci0: <Intel ICH5 UDMA100 controller> port 0xef90-0xef9f,0xefa8-0xefab,0xefa0-0xefa7,0xefac-0xefaf,0xefe0-0xefe7 irq 18 at device 31.1 on pci0
ata2: channel #0 on atapci0
ata3: channel #1 on atapci0
atapci1: <Intel ICH5 SATA150 controller> port 0xee60-0xee6f,0xef80-0xef83,0xef68-0xef6f,0xef84-0xef87,0xef88-0xef8f irq 18 at device 31.2 on pci0
ata4: channel #0 on atapci1
ata5: channel #1 on atapci1
pci0: <serial bus, SMBus> at device 31.3 (no driver attached)
pcm0: <Intel ICH5 (82801EB)> port 0xee80-0xeebf,0xe800-0xe8ff mem 0xfe7ff000-0xfe7ff0ff,0xfe7ff400-0xfe7ff5ff irq 17 at device 31.5 on pci0
pcm0: [GIANT-LOCKED]
pcm0: <Analog Devices AD1985 AC97 Codec>
acpi_button0: <Power Button> 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> irq 12 on atkbdc0
psm0: [GIANT-LOCKED]
psm0: model IntelliMouse, device ID 3
sio0: configured irq 4 not in bitmap of probed irqs 0
sio0: port may not be enabled
sio0: <16550A-compatible COM port> port 0x3f8-0x3ff irq 4 flags 0x10 on acpi0
sio0: type 16550A
sio1: configured irq 3 not in bitmap of probed irqs 0
sio1: port may not be enabled
sio1: <16550A-compatible COM port> port 0x2f8-0x2ff irq 3 on acpi0
sio1: type 16550A
fdc0: <floppy drive controller (FDE)> port 0x3f7,0x3f0-0x3f5 irq 6 drq 2 on acpi0
fdc0: [FAST]
fd0: <1440-KB 3.5" drive> on fdc0 drive 0
pmtimer0 on isa0
sc0: <System console> at flags 0x100 on isa0
sc0: VGA <16 virtual consoles, flags=0x300>
vga0: <Generic ISA VGA> at port 0x3c0-0x3df iomem 0xa0000-0xbffff on isa0
ata0 at port 0x3f6,0x1f0-0x1f7 irq 14 on isa0
ata1 at port 0x376,0x170-0x177 irq 15 on isa0
ppc0: parallel port not found.
Timecounters tick every 10.000 msec
em0: Link is up 1000 Mbps Full Duplex
ad4: 238475MB <WDC WD2500JB-32EVA0/15.05R15> [484521/16/63] at ata2-master UDMA100
acd0: DVDR <Memorex DVD+/-RW Dual-X1/1.05> at ata3-master UDMA33
ad8: 35304MB <WDC WD360GD-00FNA0/35.06K35> [71730/16/63] at ata4-master SATA150
ad10: 35304MB <WDC WD360GD-00FNA0/35.06K35> [71730/16/63] at ata5-master SATA150
SMP: AP CPU #1 Launched!
da0 at umass-sim0 bus 0 target 0 lun 0
da0: <Y-E DATA CF Card Reader 1.03> Removable Direct Access SCSI-2 device 
da0: 1.000MB/s transfers
da0: Attempt to query device size failed: NOT READY, Medium not present
da1 at umass-sim0 bus 0 target 0 lun 1
da1: <Y-E DATA SM Card Reader 1.03> Removable Direct Access SCSI-2 device 
da1: 1.000MB/s transfers
da1: Attempt to query device size failed: NOT READY, Medium not present
da2 at umass-sim0 bus 0 target 0 lun 2
da2: <Y-E DATA MS Card Reader 1.03> Removable Direct Access SCSI-2 device 
da2: 1.000MB/s transfers
da2: Attempt to query device size failed: NOT READY, Medium not present
da3 at umass-sim0 bus 0 target 0 lun 3
da3: <Y-E DATA SD Card Reader 1.03> Removable Direct Access SCSI-2 device 
da3: 1.000MB/s transfers
da3: Attempt to query device size failed: NOT READY, Medium not present
(da0:umass-sim0:0:0:0): READ CAPACITY. CDB: 25 0 0 0 0 0 0 0 0 0 
(da0:umass-sim0:0:0:0): CAM Status: SCSI Status Error
(da0:umass-sim0:0:0:0): SCSI Status: Check Condition
(da0:umass-sim0:0:0:0): NOT READY asc:3a,0
(da0:umass-sim0:0:0:0): Medium not present
(da0:umass-sim0:0:0:0): Unretryable error
Opened disk da0 -> 6
(da0:umass-sim0:0:0:0): READ CAPACITY. CDB: 25 0 0 0 0 0 0 0 0 0 
(da0:umass-sim0:0:0:0): CAM Status: SCSI Status Error
(da0:umass-sim0:0:0:0): SCSI Status: Check Condition
(da0:umass-sim0:0:0:0): NOT READY asc:3a,0
(da0:umass-sim0:0:0:0): Medium not present
(da0:umass-sim0:0:0:0): Unretryable error
Opened disk da0 -> 6
(da0:umass-sim0:0:0:0): READ CAPACITY. CDB: 25 0 0 0 0 0 0 0 0 0 
(da0:umass-sim0:0:0:0): CAM Status: SCSI Status Error
(da0:umass-sim0:0:0:0): SCSI Status: Check Condition
(da0:umass-sim0:0:0:0): NOT READY asc:3a,0
(da0:umass-sim0:0:0:0): Medium not present
(da0:umass-sim0:0:0:0): Unretryable error
Opened disk da0 -> 6
(da1:umass-sim0:0:0:1): READ CAPACITY. CDB: 25 20 0 0 0 0 0 0 0 0 
(da1:umass-sim0:0:0:1): CAM Status: SCSI Status Error
(da1:umass-sim0:0:0:1): SCSI Status: Check Condition
(da1:umass-sim0:0:0:1): NOT READY asc:3a,0
(da1:umass-sim0:0:0:1): Medium not present
(da1:umass-sim0:0:0:1): Unretryable error
Opened disk da1 -> 6
(da1:umass-sim0:0:0:1): READ CAPACITY. CDB: 25 20 0 0 0 0 0 0 0 0 
(da1:umass-sim0:0:0:1): CAM Status: SCSI Status Error
(da1:umass-sim0:0:0:1): SCSI Status: Check Condition
(da1:umass-sim0:0:0:1): NOT READY asc:3a,0
(da1:umass-sim0:0:0:1): Medium not present
(da1:umass-sim0:0:0:1): Unretryable error
Opened disk da1 -> 6
(da1:umass-sim0:0:0:1): READ CAPACITY. CDB: 25 20 0 0 0 0 0 0 0 0 
(da1:umass-sim0:0:0:1): CAM Status: SCSI Status Error
(da1:umass-sim0:0:0:1): SCSI Status: Check Condition
(da1:umass-sim0:0:0:1): NOT READY asc:3a,0
(da1:umass-sim0:0:0:1): Medium not present
(da1:umass-sim0:0:0:1): Unretryable error
Opened disk da1 -> 6
(da2:umass-sim0:0:0:2): READ CAPACITY. CDB: 25 40 0 0 0 0 0 0 0 0 
(da2:umass-sim0:0:0:2): CAM Status: SCSI Status Error
(da2:umass-sim0:0:0:2): SCSI Status: Check Condition
(da2:umass-sim0:0:0:2): NOT READY asc:3a,0
(da2:umass-sim0:0:0:2): Medium not present
(da2:umass-sim0:0:0:2): Unretryable error
Opened disk da2 -> 6
(da2:umass-sim0:0:0:2): READ CAPACITY. CDB: 25 40 0 0 0 0 0 0 0 0 
(da2:umass-sim0:0:0:2): CAM Status: SCSI Status Error
(da2:umass-sim0:0:0:2): SCSI Status: Check Condition
(da2:umass-sim0:0:0:2): NOT READY asc:3a,0
(da2:umass-sim0:0:0:2): Medium not present
(da2:umass-sim0:0:0:2): Unretryable error
Opened disk da2 -> 6
(da2:umass-sim0:0:0:2): READ CAPACITY. CDB: 25 40 0 0 0 0 0 0 0 0 
(da2:umass-sim0:0:0:2): CAM Status: SCSI Status Error
(da2:umass-sim0:0:0:2): SCSI Status: Check Condition
(da2:umass-sim0:0:0:2): NOT READY asc:3a,0
(da2:umass-sim0:0:0:2): Medium not present
(da2:umass-sim0:0:0:2): Unretryable error
Opened disk da2 -> 6
(da3:umass-sim0:0:0:3): READ CAPACITY. CDB: 25 60 0 0 0 0 0 0 0 0 
(da3:umass-sim0:0:0:3): CAM Status: SCSI Status Error
(da3:umass-sim0:0:0:3): SCSI Status: Check Condition
(da3:umass-sim0:0:0:3): NOT READY asc:3a,0
(da3:umass-sim0:0:0:3): Medium not present
(da3:umass-sim0:0:0:3): Unretryable error
Opened disk da3 -> 6
(da3:umass-sim0:0:0:3): READ CAPACITY. CDB: 25 60 0 0 0 0 0 0 0 0 
(da3:umass-sim0:0:0:3): CAM Status: SCSI Status Error
(da3:umass-sim0:0:0:3): SCSI Status: Check Condition
(da3:umass-sim0:0:0:3): NOT READY asc:3a,0
(da3:umass-sim0:0:0:3): Medium not present
(da3:umass-sim0:0:0:3): Unretryable error
Opened disk da3 -> 6
(da3:umass-sim0:0:0:3): READ CAPACITY. CDB: 25 60 0 0 0 0 0 0 0 0 
(da3:umass-sim0:0:0:3): CAM Status: SCSI Status Error
(da3:umass-sim0:0:0:3): SCSI Status: Check Condition
(da3:umass-sim0:0:0:3): NOT READY asc:3a,0
(da3:umass-sim0:0:0:3): Medium not present
(da3:umass-sim0:0:0:3): Unretryable error
Opened disk da3 -> 6
Mounting root from ufs:/dev/ad8s1a
em0: Link is up 1000 Mbps Full Duplex
em0: Link is up 1000 Mbps Full Duplex


conf file.  With atapicam it crashes, without it does not.  I need atapicam to use k3b, which only knows how to deal with SCSI DVD burners.


#
# 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 1.413.2.6.2.2 2004/10/24 18:02:52 scottl Exp $

machine		i386
#cpu		I486_CPU
#cpu		I586_CPU
cpu		I686_CPU
ident		DEVELOPMENT

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

options		SMP

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 	GEOM_GPT		# GUID Partition Tables.
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 	ADAPTIVE_GIANT		# Giant mutex is adaptive.

device		apic		# I/O APIC

# Bus support.  Do not remove isa, even if you have no isa slots
device		isa
device		eisa
device		pci

# Floppy drives
device		fdc

# ATA and ATAPI devices
device		ata
device		atadisk		# ATA disk drives
#device		ataraid		# ATA RAID drives
device		atapicd		# ATAPI CDROM drives
#device		atapifd		# ATAPI floppy drives
#device		atapicam	# emulate atapi as cam for dvd burning
#device		atapist		# ATAPI tape drives
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

# 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 interfaced to the SCSI subsystem
#device		amr		# AMI MegaRAID
#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		hptmv		# Highpoint RocketRAID 182x
#device		iir		# Intel Integrated RAID
#device		ips		# IBM (Adaptec) ServeRAID
#device		mly		# Mylex AcceleRAID/eXtremeRAID
#device		twa		# 3ware 9000 series PATA/SATA RAID

# RAID controllers
#device		aac		# Adaptec FSA RAID
#device		aacp		# SCSI passthrough for aac (requires CAM)
#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		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

# If you've got a "dumb" serial or parallel PCI card that is
# supported by the puc(4) glue driver, uncomment the following
# line to enable it (connects to the sio and/or ppc drivers):
#device         puc

# PCI Ethernet NICs.
#device		de		# DEC/Intel DC21x4x (``Tulip'')
device		em		# Intel PRO/1000 adapter Gigabit Ethernet Card
#device		ixgb		# Intel PRO/10GbE 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		bfe		# Broadcom BCM440x 10/100 Ethernet
#device		bge		# Broadcom BCM570xx Gigabit Ethernet
#device		dc		# DEC/Intel 21143 and various workalikes
#device		fxp		# Intel EtherExpress PRO/100B (82557, 82558)
#device		lge		# Level 1 LXT1001 gigabit ethernet
#device		nge		# NatSemi DP83820 gigabit ethernet
#device		pcn		# AMD Am79C97x PCI 10/100 (precedence over 'lnc')
#device		re		# RealTek 8139C+/8169/8169S/8110S
#device		rl		# RealTek 8129/8139
#device		sf		# Adaptec AIC-6915 (``Starfire'')
#device		sis		# Silicon Integrated Systems SiS 900/SiS 7016
#device		sk		# SysKonnect SK-984x & SK-982x gigabit Ethernet
#device		ste		# Sundance ST201 (D-Link DFE-550TX)
#device		ti		# Alteon Networks Tigon I/II gigabit Ethernet
#device		tl		# Texas Instruments ThunderLAN
#device		tx		# SMC EtherPower II (83c170 ``EPIC'')
#device		vge		# VIA VT612x gigabit ethernet
#device		vr		# VIA Rhine, Rhine II
#device		wb		# Winbond W89C840F
#device		xl		# 3Com 3c90x (``Boomerang'', ``Cyclone'')

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

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

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

# Pseudo devices.
device		loop		# Network loopback
device		mem		# Memory and kernel memory devices
device		io		# I/O device
device		random		# Entropy device
device		ether		# Ethernet support
device		sl		# Kernel SLIP
device		ppp		# Kernel PPP
device		tun		# Packet tunnel.
device		pty		# Pseudo-ttys (telnet etc)
device		md		# Memory "disks"
device		gif		# IPv6 and IPv4 tunneling
device		faith		# IPv6-to-IPv4 relaying (translation)

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

# USB support
device		uhci		# UHCI PCI->USB interface
device		ohci		# OHCI PCI->USB interface
device		usb		# USB Bus (required)
#device		udbp		# USB Double Bulk Pipe devices
device		ugen		# Generic
device		uhid		# "Human Interface Devices"
device		ukbd		# Keyboard
device		ulpt		# Printer
device		umass		# Disks/Mass storage - Requires scbus and da
device		ums		# Mouse
device		urio		# Diamond Rio 500 MP3 player
device		uscanner	# Scanners
# USB Ethernet, requires mii
device		aue		# ADMtek USB Ethernet
device		axe		# ASIX Electronics USB Ethernet
device		cue		# CATC USB Ethernet
device		kue		# Kawasaki LSI USB Ethernet
device		rue		# RealTek RTL8150 USB Ethernet

# FireWire support
device		firewire	# FireWire bus code
#device		sbp		# SCSI over FireWire (Requires scbus and da)

device		sound
device		"snd_ad1816"
device		snd_ich


# device		fwe		# Ethernet over FireWire (non-standard!)

>How-To-Repeat:
Just boot with ATAPICAM in the above conf file.  Happens every time.

>Fix:
Wish I knew.  Saw back in 4.3 someone ran across this, they thought a patch to restore the interrupt level ought to be in the a system fork routine somewhere.  HTH.


>Release-Note:
>Audit-Trail:
>Unformatted: