panic: vm_page_unwire: invalid wire count: 0

Frank Mayhar frank at exit.com
Sat Dec 29 11:39:58 PST 2007


This is on a very recent -stable (like, as of just a couple of days
ago).  Doing nothing in particular, ZERO_COPY_SOCKETS _not_ specified in
the config.  This has happened twice this morning; if it happens again
I'll drop back to my older kernel, built back in May.

I've attached my config and dmesg; the stack trace is here:

#20 0xffffffff80273e73 in doadump () at /usr/src/sys/kern/kern_shutdown.c:243
#21 0xffffffff80274485 in boot (howto=260)
    at /usr/src/sys/kern/kern_shutdown.c:409
#22 0xffffffff80274b95 in panic (fmt=0xffffff005488f000 "")
    at /usr/src/sys/kern/kern_shutdown.c:565
#23 0xffffffff803b4f9b in vm_page_unwire (m=0xffffff007d61f308, 
    activate=2118678981) at /usr/src/sys/vm/vm_page.c:1275
#24 0xffffffff802cf366 in vfs_vmio_release (bp=0xffffffffa18fdf88)
    at /usr/src/sys/kern/vfs_bio.c:1489
#25 0xffffffff802d2a76 in getnewbuf (slpflag=0, slptimeo=0, size=0, 
    maxsize=16384) at /usr/src/sys/kern/vfs_bio.c:1798
#26 0xffffffff802d2eb4 in getblk (vp=0xffffff007a7431f0, blkno=0, size=2048, 
    slpflag=0, slptimeo=0, flags=0) at /usr/src/sys/kern/vfs_bio.c:2516
#27 0xffffffff802d496c in breadn (vp=0xffffff007a7431f0, 
    blkno=107449315523013, size=0, rablkno=0x0, rabsize=0x0, cnt=0, cred=0x0, 
    bpp=0x61b97e48a90e) at /usr/src/sys/kern/vfs_bio.c:742
#28 0xffffffff802d4dae in bread (vp=0xa, blkno=107449315523013, size=0, 
    cred=0x61b97e48cf58, bpp=0xffffff005488f000)
    at /usr/src/sys/kern/vfs_bio.c:723
#29 0xffffffff8038514c in ffs_blkatoff (vp=0xa, offset=0, res=0x0, 
    bpp=0xffffffffb5ae4690) at /usr/src/sys/ufs/ffs/ffs_subr.c:87
#30 0xffffffff80391aa2 in ufs_lookup (ap=0xffffffffb5ae4780)
    at /usr/src/sys/ufs/ufs/ufs_lookup.c:259
#31 0xffffffff80426aba in VOP_CACHEDLOOKUP_APV (vop=0x61b97e48a90e, 
    a=0x61b97e4879c5) at vnode_if.c:150
#32 0xffffffff802d6730 in vfs_cache_lookup (ap=0xa) at vnode_if.h:82
#33 0xffffffff804277fe in VOP_LOOKUP_APV (vop=0xffffffff805b7000, 
    a=0xffffffffb5ae4880) at vnode_if.c:99
#34 0xffffffff802db19b in lookup (ndp=0xffffffffb5ae4990) at vnode_if.h:56
#35 0xffffffff802dbf4b in namei (ndp=0xffffffffb5ae4990)
    at /usr/src/sys/kern/vfs_lookup.c:216
#36 0xffffffff802eda9b in kern_lstat (td=0xffffff005488f000, 
    path=0x61b97e4879c5 <Address 0x61b97e4879c5 out of bounds>, 
    pathseg=UIO_USERSPACE, sbp=0xffffffffb5ae4af0)
    at /usr/src/sys/kern/vfs_syscalls.c:2127
#37 0xffffffff802edf5a in lstat (td=0xa, uap=0xffffffffb5ae4bc0)
    at /usr/src/sys/kern/vfs_syscalls.c:2110
#38 0xffffffff803dea02 in syscall (frame=
      {tf_rdi = 8049928, tf_rsi = 7588984, tf_rdx = 4407994, tf_rcx = 0, tf_r8 = 410, tf_r9 = 0, tf_rax = 190, tf_rbx = 10, tf_rbp = 7589160, tf_r10 = 6625968, tf_r11 = 8044136, tf_r12 = 140737488350360, tf_r13 = 0, tf_r14 = 0, tf_r15 = 0, tf_trapno = 22, tf_addr = 0, tf_flags = 7588928, tf_err = 2, tf_rip = 1084076476, tf_cs = 43, tf_rflags = 582, tf_rsp = 7588944, tf_ss = 35})
    at /usr/src/sys/amd64/amd64/trap.c:807
#39 0xffffffff803c4d98 in Xfast_syscall ()
    at /usr/src/sys/amd64/amd64/exception.S:287

I'm happy to provide any other information requested.
-- 
Frank Mayhar frank at exit.com     http://www.exit.com/
Exit Consulting                 http://www.gpsclock.com/
                                http://www.exit.com/blog/frank/
                                http://www.zazzle.com/fmayhar*
-------------- next part --------------
Copyright (c) 1992-2008 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 is a registered trademark of The FreeBSD Foundation.
FreeBSD 6.3-PRERELEASE #8: Thu Dec 27 15:34:56 PST 2007
    root at jill.exit.com:/usr/obj/usr/src/sys/JILL
ACPI APIC Table: <A M I  OEMAPIC >
Timecounter "i8254" frequency 1193182 Hz quality 0
CPU: AMD Opteron(tm) Processor 248 (2190.72-MHz K8-class CPU)
  Origin = "AuthenticAMD"  Id = 0x20f51  Stepping = 1
  Features=0x78bfbff<FPU,VME,DE,PSE,TSC,MSR,PAE,MCE,CX8,APIC,SEP,MTRR,PGE,MCA,CMOV,PAT,PSE36,CLFLUSH,MMX,FXSR,SSE,SSE2>
  AMD Features=0xe0500800<SYSCALL,NX,MMX+,LM,3DNow!+,3DNow!>
real memory  = 2147418112 (2047 MB)
avail memory = 2063601664 (1968 MB)
FreeBSD/SMP: Multiprocessor System Detected: 2 CPUs
 cpu0 (BSP): APIC ID:  0
 cpu1 (AP): APIC ID:  1
MADT: Forcing active-low polarity and level trigger for SCI
ioapic0 <Version 1.1> irqs 0-23 on motherboard
ioapic1 <Version 1.1> irqs 24-27 on motherboard
ioapic2 <Version 1.1> irqs 28-31 on motherboard
kbd1 at kbdmux0
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 0x1008-0x100b on acpi0
acpi_hpet0: <High Precision Event Timer> iomem 0xfec01000-0xfec013ff on acpi0
Timecounter "HPET" frequency 14318180 Hz quality 900
cpu0: <ACPI CPU> on acpi0
acpi_throttle0: <ACPI CPU Throttling> on cpu0
cpu1: <ACPI CPU> on acpi0
pcib0: <ACPI Host-PCI bridge> port 0xcf8-0xcff on acpi0
pci0: <ACPI PCI bus> on pcib0
pcib1: <ACPI PCI-PCI bridge> at device 6.0 on pci0
pci3: <ACPI PCI bus> on pcib1
ohci0: <OHCI (generic) USB controller> mem 0xfeafc000-0xfeafcfff irq 19 at device 0.0 on pci3
ohci0: [GIANT-LOCKED]
usb0: OHCI version 1.0, legacy support
usb0: <OHCI (generic) USB controller> on ohci0
usb0: USB revision 1.0
uhub0: AMD OHCI root hub, class 9/0, rev 1.00/1.00, addr 1
uhub0: 3 ports with 3 removable, self powered
ohci1: <OHCI (generic) USB controller> mem 0xfeafd000-0xfeafdfff irq 19 at device 0.1 on pci3
ohci1: [GIANT-LOCKED]
usb1: OHCI version 1.0, legacy support
usb1: <OHCI (generic) USB controller> on ohci1
usb1: USB revision 1.0
uhub1: AMD OHCI root hub, class 9/0, rev 1.00/1.00, addr 1
uhub1: 3 ports with 3 removable, self powered
ohci2: <NEC uPD 9210 USB controller> mem 0xfeafa000-0xfeafafff irq 16 at device 4.0 on pci3
ohci2: [GIANT-LOCKED]
usb2: OHCI version 1.0
usb2: <NEC uPD 9210 USB controller> on ohci2
usb2: USB revision 1.0
uhub2: NEC OHCI root hub, class 9/0, rev 1.00/1.00, addr 1
uhub2: 3 ports with 3 removable, self powered
ohci3: <NEC uPD 9210 USB controller> mem 0xfeafb000-0xfeafbfff irq 17 at device 4.1 on pci3
ohci3: [GIANT-LOCKED]
usb3: OHCI version 1.0
usb3: <NEC uPD 9210 USB controller> on ohci3
usb3: USB revision 1.0
uhub3: NEC OHCI root hub, class 9/0, rev 1.00/1.00, addr 1
uhub3: 2 ports with 2 removable, self powered
ehci0: <NEC uPD 720100 USB 2.0 controller> mem 0xfeafe800-0xfeafe8ff irq 18 at device 4.2 on pci3
ehci0: [GIANT-LOCKED]
usb4: EHCI version 0.95
usb4: companion controllers, 3 ports each: usb2 usb3
usb4: <NEC uPD 720100 USB 2.0 controller> on ehci0
usb4: USB revision 2.0
uhub4: NEC EHCI root hub, class 9/0, rev 2.00/1.00, addr 1
uhub4: 5 ports with 5 removable, self powered
uhub5: vendor 0x0409 product 0x005a, class 9/0, rev 2.00/1.00, addr 2
uhub5: single transaction translator
uhub5: 4 ports with 4 removable, self powered
uhub6: vendor 0x0409 product 0x005a, class 9/0, rev 2.00/1.00, addr 3
uhub6: single transaction translator
uhub6: 4 ports with 4 removable, self powered
umass0: Prolific Technology Inc. ATAPI-6 Bridge Controller, rev 2.00/0.01, addr 4
atapci0: <SiI SiI 3114 SATA150 controller> port 0xbc00-0xbc07,0xb880-0xb883,0xb800-0xb807,0xac00-0xac03,0xa880-0xa88f mem 0xfeafec00-0xfeafefff irq 19 at device 5.0 on pci3
ata2: <ATA channel 0> on atapci0
ata3: <ATA channel 1> on atapci0
ata4: <ATA channel 2> on atapci0
ata5: <ATA channel 3> on atapci0
pci3: <display, VGA> at device 6.0 (no driver attached)
isab0: <PCI-ISA bridge> at device 7.0 on pci0
isa0: <ISA bus> on isab0
atapci1: <AMD 8111 UDMA133 controller> port 0x1f0-0x1f7,0x3f6,0x170-0x177,0x376,0xffa0-0xffaf at device 7.1 on pci0
ata0: <ATA channel 0> on atapci1
ata1: <ATA channel 1> on atapci1
pci0: <serial bus, SMBus> at device 7.2 (no driver attached)
pci0: <bridge> at device 7.3 (no driver attached)
pcib2: <ACPI PCI-PCI bridge> at device 10.0 on pci0
pci2: <ACPI PCI bus> on pcib2
ahd0: <Adaptec AIC7902 Ultra320 SCSI adapter> port 0x8000-0x80ff,0x7800-0x78ff mem 0xfc8dc000-0xfc8ddfff irq 24 at device 6.0 on pci2
ahd0: [GIANT-LOCKED]
aic7902: Ultra320 Wide Channel A, SCSI Id=7, PCI 33 or 66Mhz, 512 SCBs
ahd1: <Adaptec AIC7902 Ultra320 SCSI adapter> port 0x8800-0x88ff,0x8400-0x84ff mem 0xfc8de000-0xfc8dffff irq 25 at device 6.1 on pci2
ahd1: [GIANT-LOCKED]
aic7902: Ultra320 Wide Channel B, SCSI Id=7, PCI 33 or 66Mhz, 512 SCBs
bge0: <Broadcom BCM5704 A3, ASIC rev. 0x2003> mem 0xfc810000-0xfc81ffff,0xfc800000-0xfc80ffff irq 24 at device 9.0 on pci2
miibus0: <MII bus> on bge0
brgphy0: <BCM5704 10/100/1000baseTX PHY> on miibus0
brgphy0:  10baseT, 10baseT-FDX, 100baseTX, 100baseTX-FDX, 1000baseT, 1000baseT-FDX, auto
bge0: Ethernet address: 00:e0:81:33:7e:9a
bge1: <Broadcom BCM5704 A3, ASIC rev. 0x2003> mem 0xfc8c0000-0xfc8cffff,0xfc830000-0xfc83ffff irq 25 at device 9.1 on pci2
miibus1: <MII bus> on bge1
brgphy1: <BCM5704 10/100/1000baseTX PHY> on miibus1
brgphy1:  10baseT, 10baseT-FDX, 100baseTX, 100baseTX-FDX, 1000baseT, 1000baseT-FDX, auto
bge1: Ethernet address: 00:e0:81:33:7e:9b
pcib3: <ACPI PCI-PCI bridge> at device 11.0 on pci0
pci1: <ACPI PCI bus> on pcib3
amr0: <LSILogic MegaRAID 1.53> mem 0xff4f0000-0xff4fffff irq 29 at device 1.0 on pci1
amr0: Using 64-bit DMA
amr0: delete logical drives supported by controller
amr0: <LSILogic MegaRAID SATA 150-4D> Firmware 713G, BIOS G117, 64MB RAM
acpi_button0: <Power Button> on acpi0
atkbdc0: <Keyboard controller (i8042)> port 0x60,0x64 irq 1 on acpi0
atkbd0: <AT Keyboard> flags 0x100 irq 1 on atkbdc0
kbd0 at atkbd0
atkbd0: [GIANT-LOCKED]
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, console
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 0x3f0-0x3f5,0x3f7 irq 6 drq 2 on acpi0
fdc0: [FAST]
orm0: <ISA Option ROMs> at iomem 0xc0000-0xc7fff,0xc8000-0xcc7ff on isa0
sc0: <System console> at flags 0x100 on isa0
sc0: VGA <16 virtual consoles, flags=0x100>
vga0: <Generic ISA VGA> at port 0x3c0-0x3df iomem 0xa0000-0xbffff on isa0
ucom0: vendor 0x067b product 0x2303, rev 1.10/2.02, addr 2
uhub7: ALCOR Generic USB Hub, class 9/0, rev 1.10/3.12, addr 2
uhub7: 4 ports with 4 removable, self powered
ucom1: Prolific Technology Inc. USB-Serial Controller, rev 1.10/3.00, addr 3
ucom2: Prolific Technology Inc. USB-Serial Controller, rev 1.10/3.00, addr 4
ucom3: Prolific Technology Inc. USB-Serial Controller, rev 1.10/3.00, addr 5
ucom4: Prolific Technology Inc. USB-Serial Controller, rev 1.10/3.00, addr 6
Timecounters tick every 1.000 msec
Waiting 10 seconds for SCSI devices to settle
ad4: 190782MB <Seagate ST3200822AS 3.01> at ata2-master SATA150
amr0: delete logical drives supported by controller
amrd0: <LSILogic MegaRAID logical drive> on amr0
amrd0: 1144647MB (2344237056 sectors) RAID 5 (optimal)
GEOM_LABEL: Label for provider ad4s1g is ufs/amanda.
GEOM_LABEL: Label for provider ad4s1h is ufs/misc.
GEOM_LABEL: Label for provider amrd0s1d is ufs/home.
GEOM_LABEL: Label for provider amrd0s1e is ufs/archive.
GEOM_LABEL: Label for provider amrd0s1f is ufs/mmedia.
(probe8:ahd0:0:8:0): Got CHECK CONDITION
(probe8:ahd0:0:8:0): MODE SENSE(06). CDB: 1a 0 a 0 14 0 
(probe8:ahd0:0:8:0): UNIT ATTENTION asc:29,2
(probe8:ahd0:0:8:0): Scsi bus reset occurred field replaceable unit: 2
(probe8:ahd0:0:8:0): camperiphscsisenseerror ccb_h status cc ccb_h flags 40 csio status 2 action 10105 retry 3
da0 at ahd0 bus 0 target 0 lun 0
da0: <QUANTUM ATLAS_V_36_WLS 0230> Fixed Direct Access SCSI-3 device 
da0: 80.000MB/s transfers (40.000MHz, offset 63, 16bit), Tagged Queueing Enabled
da0: 35020MB (71722776 512 byte sectors: 255H 63S/T 4464C)
da1 at ahd0 bus 0 target 8 lun 0
da1: <SEAGATE SX173404LC BD0A> Fixed Direct Access SCSI-3 device 
da1: 80.000MB/s transfers (40.000MHz, offset 63, 16bit), Tagged Queueing Enabled
da1: 70007MB (143374738 512 byte sectors: 255H 63S/T 8924C)
SMP: AP CPU #1 Launched!
(cd0:umass-sim0:0:0:0): Got CHECK CONDITION
(cd0:umass-sim0:0:0:0): READ CD RECORDED CAPACITY. CDB: 25 0 0 0 0 0 0 0 0 0 
(cd0:umass-sim0:0:0:0): NOT READY asc:3a,0
(cd0:umass-sim0:0:0:0): Medium not present
(cd0:umass-sim0:0:0:0): camperiphscsisenseerror ccb_h status 8c ccb_h flags 40 csio status 2 action 20006 retry 1
cd0 at umass-sim0 bus 0 target 0 lun 0
cd0: <_NEC DVD_RW ND-2510A 2.15> Removable CD-ROM SCSI-0 device 
cd0: 40.000MB/s transfers
cd0: Attempt to query device size failed: NOT READY, Medium not present
(cd0:umass-sim0:0:0:0): Got CHECK CONDITION
(cd0:umass-sim0:0:0:0): READ CD RECORDED CAPACITY. CDB: 25 0 0 0 0 0 0 0 0 0 
(cd0:umass-sim0:0:0:0): NOT READY asc:3a,0
(cd0:umass-sim0:0:0:0): Medium not present
(cd0:umass-sim0:0:0:0): camperiphscsisenseerror ccb_h status 8c ccb_h flags 40 csio status 2 action 20006 retry 1
(cd0:umass-sim0:0:0:0): Got CHECK CONDITION
(cd0:umass-sim0:0:0:0): READ CD RECORDED CAPACITY. CDB: 25 0 0 0 0 0 0 0 0 0 
(cd0:umass-sim0:0:0:0): NOT READY asc:3a,0
(cd0:umass-sim0:0:0:0): Medium not present
(cd0:umass-sim0:0:0:0): camperiphscsisenseerror ccb_h status 8c ccb_h flags 40 csio status 2 action 20006 retry 1
(cd0:umass-sim0:0:0:0): Got CHECK CONDITION
(cd0:umass-sim0:0:0:0): READ CD RECORDED CAPACITY. CDB: 25 0 0 0 0 0 0 0 0 0 
(cd0:umass-sim0:0:0:0): NOT READY asc:3a,0
(cd0:umass-sim0:0:0:0): Medium not present
(cd0:umass-sim0:0:0:0): camperiphscsisenseerror ccb_h status 8c ccb_h flags 40 csio status 2 action 20006 retry 1
(cd0:umass-sim0:0:0:0): Got CHECK CONDITION
(cd0:umass-sim0:0:0:0): READ CD RECORDED CAPACITY. CDB: 25 0 0 0 0 0 0 0 0 0 
(cd0:umass-sim0:0:0:0): NOT READY asc:3a,0
(cd0:umass-sim0:0:0:0): Medium not present
(cd0:umass-sim0:0:0:0): camperiphscsisenseerror ccb_h status 8c ccb_h flags 40 csio status 2 action 20006 retry 1
GEOM_LABEL: Label for provider da0s1e is ufs/src.
GEOM_LABEL: Label for provider da0s1f is ufs/cvs.
GEOM_LABEL: Label for provider da0s1g is ufs/mnt.
GEOM_LABEL: Label for provider da1s1e is ufs/obj.
GEOM_LABEL: Label for provider da1s1f is ufs/ports.
GEOM_LABEL: Label for provider da1s1g is ufs/spare.
Trying to mount root from ufs:/dev/ad4s1a
WARNING: / was not properly dismounted
WARNING: /usr was not properly dismounted
WARNING: /var was not properly dismounted
/var: mount pending error: blocks 21836 files 2
WARNING: /usr/local was not properly dismounted
WARNING: /amanda was not properly dismounted
WARNING: /misc was not properly dismounted
WARNING: /usr/src was not properly dismounted
WARNING: /cvs was not properly dismounted
WARNING: /mnt was not properly dismounted
WARNING: /usr/obj was not properly dismounted
WARNING: /usr/ports was not properly dismounted
WARNING: /spare was not properly dismounted
WARNING: /home was not properly dismounted
/home: mount pending error: blocks 16 files 4
WARNING: /archive was not properly dismounted
WARNING: /mmedia was not properly dismounted
bge0: link state changed to UP
-------------- next part --------------
#
# GENERIC -- Generic kernel configuration file for FreeBSD/i386
#

machine		amd64
cpu		HAMMER			# aka K8, aka Opteron & Athlon64
ident		REALTIME

maxusers	512

makeoptions	DEBUG=-g		# Build kernel with gdb(1) debug symbols

options		HZ=1000
options 	SCHED_4BSD		# 4BSD scheduler
options 	PREEMPTION		# 4BSD scheduler
options 	INET			# InterNETworking
options 	FFS			# Berkeley Fast Filesystem
options 	SOFTUPDATES		# Enable FFS soft updates support
options 	UFS_EXTATTR
options 	UFS_EXTATTR_AUTOSTART
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=10000	# 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 	ADAPTIVE_GIANT		# Giant mutex is adaptive.

# Debugging for use in -current
options		KDB			# Enable kernel debugger support.
options		KDB_UNATTENDED
options		DDB			# Support DDB.
options		GDB			# Support remote GDB.
options		BREAK_TO_DEBUGGER
#options		INVARIANTS
#options		INVARIANT_SUPPORT
#options		WITNESS
#options		WITNESS_SKIPSPIN

#options		KTR
#options		KTR_ENTRIES=524288
#options		KTR_COMPILE=(KTR_INTR|KTR_PROC)
#options		KTR_MASK=(KTR_GEN|KTR_DEV|KTR_INTR|KTR_IO|KTR_EVH|KTR_VFS|KTR_CALLOUT|KTR_GEOM|KTR_BUF|KTR_CT1|KTR_CT2|KTR_CT3|KTR_CT4|KTR_CT5|KTR_CT6|KTR_CT7|KTR_CT8)
#options		KTR_CPUMASK=0x3
#options		KTR_VERBOSE

options 	COMPAT_IA32
options 	COMPAT_LINUX32
options 	LINPROCFS		# Cannot be a module yet.

options 	LIBICONV

#options		IPSEC			#IP security
#options		IPSEC_ESP		#IP security (crypto; define w/ IPSEC)

options		MAXDSIZ=(1024UL*1024*1024)
options		MAXSSIZ=(512UL*1024*1024)
options		DFLDSIZ=(1024UL*1024*1024)

# To make an SMP kernel, the next two are needed
options 	SMP		# Symmetric MultiProcessor Kernel

device		acpi
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		atapist		# ATAPI tape drives
options 	ATA_STATIC_ID	# Static device numbering

# SCSI Controllers
device		sym		# NCR/Symbios Logic (newer chipsets + those of `ncr')
options 	SYM_SETUP_MAX_LUN=64

# 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		# SCSI CD-ROMs
device		ses		# SCSI Environmental Services (and SAF-TE)
device		pt		# SCSI processor
device		targ		# SCSI Target Mode Code
device		targbh		# SCSI Target Mode Blackhole Device
device		pass		# CAM passthrough driver

options		CAMDEBUG

# 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		kbdmux		# keyboard multiplexer

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

device		agp

# 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		ppi		# Parallel port interface device

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


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