Panic and LOR
Pete Curry
mail at petecurry.net
Sun Sep 9 13:05:10 PDT 2007
Hi,
I've been getting a very reproducable panic in -CURRENT with moderate
network traffic (including same-machine traffic, and especially
with ssh), and a LOR on boot.
kiwi# uname -a
FreeBSD kiwi.petecurry.net 7.0-CURRENT FreeBSD 7.0-CURRENT #1: Sun
Sep 9 11:01:03 CDT 2007 root@:/usr/obj/usr/src/sys/KIWIKERN amd64
The source is from about 10:00 this morning, and my kernel config
and dmesg output is attached. It's been happening for at least a
few weeks, about as long as I've been running -CURRENT and had this
machine.
The LOR message is:
Sep 9 11:16:00 kiwi kernel: lock order reversal: (sleepable after non-sleepable)
Sep 9 11:16:00 kiwi kernel: 1st 0xffffffff807781a8 PFil hook read/write mutex (PFil hook read/write mutex) @ /usr/src/sys/net/pfil.c:73
Sep 9 11:16:00 kiwi kernel: 2nd 0xffffffffb1e2f840 ipf filter load/unload mutex (ipf filter load/unload mutex) @ /usr/src/sys/modules/ipfilter/../../contrib/ipfilter/netinet/fil.c:2419
Sep 9 11:16:00 kiwi kernel: KDB: stack backtrace:
Sep 9 11:16:00 kiwi kernel: db_trace_self_wrapper() at db_trace_self_wrapper+0x2a
Sep 9 11:16:00 kiwi kernel: witness_checkorder() at witness_checkorder+0x5f8
Sep 9 11:16:00 kiwi kernel: _sx_slock() at _sx_slock+0x51
Sep 9 11:16:00 kiwi kernel: fr_check() at fr_check+0x61
Sep 9 11:16:00 kiwi kernel: pfil_run_hooks() at pfil_run_hooks+0xc0
Sep 9 11:16:00 kiwi kernel: ip_output() at ip_output+0x37d
Sep 9 11:16:00 kiwi kernel: udp_send() at udp_send+0x350
Sep 9 11:16:00 kiwi kernel: sosend_dgram() at sosend_dgram+0x21a
Sep 9 11:16:00 kiwi kernel: kern_sendit() at kern_sendit+0x122
Sep 9 11:16:00 kiwi kernel: sendit() at sendit+0xdc
Sep 9 11:16:00 kiwi kernel: sendto() at sendto+0x4d
Sep 9 11:16:00 kiwi kernel: syscall() at syscall+0x1ce
Sep 9 11:16:00 kiwi kernel: Xfast_syscall() at Xfast_syscall+0xab
Sep 9 11:16:00 kiwi kernel: --- syscall (133, FreeBSD ELF64, sendto), rip = 0x800c57f6c, rsp = 0x7fffffffec18, rbp = 0x14705c8 ---
The panic and backtrace messages are (hand-copied, hopefully accurate):
panic: Trying sleep, but thread marked as sleeping prohibited
cpuid = 0
KDB: enter: panic
[thread pid 20 tid 100012 ]
Stopped at kdb_enter+0x31: leave
db> bt
Tracing pid 20 tid 100012 td 0xffffff0001102000
kdb_enter() at kdb_enter+0x31
panic() at panic+0x173
sleepq_add() at sleepq_add_0x2c1
_sx_xlock_hard() at _sx_xlock_kard+0x19d
_sx_xlock() at _sx_xlock+0xb8
fr_check() at fr_check+0xc05
pfil_run_hooks() at pfil_run_hooks+0xc0
ip_output() at ip_output+037d
tcp_output() at tcp_output+0xad6
tcp_timer_delack+0xcc
softclock() at softclock+0x297
ithread_loop() at ithread_loop+0xe0
fork_exit() at fork_exit+0x12a
fork_trampoline() at fork_tramoline+0xe
--- trap 0, rip= 0, rsp = 0xffffffffabeb1d30, rbp = 0 ---
db>
I've got a crash dump, but kgdb reports:
kiwi# cd /usr/obj/usr/src/sys/KIWIKERN/
kiwi# kgdb kernel.debug /var/crash/vmcore.0
kgdb: kvm_read: invalid address (0x6461657268742074)
kgdb: kvm_read: invalid address (0x7320676e69797254)
[GDB will not be able to debug user-mode threads: /usr/lib/libthread_db.so: Undefined symbol "ps_pglobal_lookup"]
GNU gdb 6.1.1 [FreeBSD]
Copyright 2004 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 "amd64-marcel-freebsd".
Cannot access memory at address 0x1464
(kgdb) bt
#0 0x0000000000000000 in ?? ()
Cannot access memory at address 0x0
(kgdb)
Please let me know what other information that I can provide or
anything that I can do to help with this issue.
Thanks,
- Pete Curry
-------------- next part --------------
Copyright (c) 1992-2007 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 7.0-CURRENT #1: Sun Sep 9 11:01:03 CDT 2007
root@:/usr/obj/usr/src/sys/KIWIKERN
WARNING: WITNESS option enabled, expect reduced performance.
Timecounter "i8254" frequency 1193182 Hz quality 0
CPU: Intel(R) Xeon(R) CPU E5335 @ 2.00GHz (2004.99-MHz K8-class CPU)
Origin = "GenuineIntel" Id = 0x6f7 Stepping = 7
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>
Features2=0x4e33d<SSE3,RSVD2,MON,DS_CPL,VMX,TM2,SSSE3,CX16,xTPR,PDCM,DCA>
AMD Features=0x20100800<SYSCALL,NX,LM>
AMD Features2=0x1<LAHF>
Cores per package: 4
usable memory = 8574763008 (8177 MB)
avail memory = 8263880704 (7881 MB)
ACPI APIC Table: <INTEL S5000PSL>
FreeBSD/SMP: Multiprocessor System Detected: 8 CPUs
cpu0 (BSP): APIC ID: 0
cpu1 (AP): APIC ID: 1
cpu2 (AP): APIC ID: 2
cpu3 (AP): APIC ID: 3
cpu4 (AP): APIC ID: 4
cpu5 (AP): APIC ID: 5
cpu6 (AP): APIC ID: 6
cpu7 (AP): APIC ID: 7
ioapic0 <Version 2.0> irqs 0-23 on motherboard
ioapic1 <Version 2.0> irqs 24-47 on motherboard
lapic0: Forcing LINT1 to edge trigger
kbd1 at kbdmux0
acpi0: <INTEL S5000PSL> on motherboard
acpi0: [ITHREAD]
acpi_hpet0: <High Precision Event Timer> iomem 0xfed00000-0xfed003ff on acpi0
Timecounter "HPET" frequency 14318180 Hz quality 900
acpi0: Power Button (fixed)
acpi0: reservation of 0, a0000 (3) failed
Timecounter "ACPI-fast" frequency 3579545 Hz quality 1000
acpi_timer0: <24-bit timer at 3.579545MHz> port 0x408-0x40b on acpi0
cpu0: <ACPI CPU> on acpi0
device_attach: acpi_perf0 attach returned 6
device_attach: acpi_perf0 attach returned 6
coretemp0: <CPU On-Die Thermal Sensors> on cpu0
p4tcc0: <CPU Frequency Thermal Control> on cpu0
cpu1: <ACPI CPU> on acpi0
device_attach: acpi_perf1 attach returned 6
device_attach: acpi_perf1 attach returned 6
coretemp1: <CPU On-Die Thermal Sensors> on cpu1
p4tcc1: <CPU Frequency Thermal Control> on cpu1
cpu2: <ACPI CPU> on acpi0
device_attach: acpi_perf2 attach returned 6
device_attach: acpi_perf2 attach returned 6
coretemp2: <CPU On-Die Thermal Sensors> on cpu2
p4tcc2: <CPU Frequency Thermal Control> on cpu2
cpu3: <ACPI CPU> on acpi0
device_attach: acpi_perf3 attach returned 6
device_attach: acpi_perf3 attach returned 6
coretemp3: <CPU On-Die Thermal Sensors> on cpu3
p4tcc3: <CPU Frequency Thermal Control> on cpu3
cpu4: <ACPI CPU> on acpi0
device_attach: acpi_perf4 attach returned 6
device_attach: acpi_perf4 attach returned 6
coretemp4: <CPU On-Die Thermal Sensors> on cpu4
p4tcc4: <CPU Frequency Thermal Control> on cpu4
cpu5: <ACPI CPU> on acpi0
device_attach: acpi_perf5 attach returned 6
device_attach: acpi_perf5 attach returned 6
coretemp5: <CPU On-Die Thermal Sensors> on cpu5
p4tcc5: <CPU Frequency Thermal Control> on cpu5
cpu6: <ACPI CPU> on acpi0
device_attach: acpi_perf6 attach returned 6
device_attach: acpi_perf6 attach returned 6
coretemp6: <CPU On-Die Thermal Sensors> on cpu6
p4tcc6: <CPU Frequency Thermal Control> on cpu6
cpu7: <ACPI CPU> on acpi0
device_attach: acpi_perf7 attach returned 6
device_attach: acpi_perf7 attach returned 6
coretemp7: <CPU On-Die Thermal Sensors> on cpu7
p4tcc7: <CPU Frequency Thermal Control> on cpu7
acpi_button0: <Sleep Button> on acpi0
acpi_button1: <Power Button> on acpi0
pcib0: <ACPI Host-PCI bridge> port 0xca2,0xca3,0xcf8-0xcff on acpi0
pci0: <ACPI PCI bus> on pcib0
pcib1: <ACPI PCI-PCI bridge> at device 2.0 on pci0
pci1: <ACPI PCI bus> on pcib1
pcib2: <ACPI PCI-PCI bridge> irq 16 at device 0.0 on pci1
pci2: <ACPI PCI bus> on pcib2
pcib3: <ACPI PCI-PCI bridge> irq 16 at device 0.0 on pci2
pci3: <ACPI PCI bus> on pcib3
pcib4: <ACPI PCI-PCI bridge> irq 18 at device 2.0 on pci2
pci4: <ACPI PCI bus> on pcib4
em0: <Intel(R) PRO/1000 Network Connection Version - 6.5.3> port 0x3020-0x303f mem 0xb9420000-0xb943ffff,0xb9000000-0xb93fffff irq 18 at device 0.0 on pci4
em0: Ethernet address: 00:15:17:2f:e1:54
em0: [FILTER]
em1: <Intel(R) PRO/1000 Network Connection Version - 6.5.3> port 0x3000-0x301f mem 0xb9400000-0xb941ffff,0xb8c00000-0xb8ffffff irq 19 at device 0.1 on pci4
em1: Ethernet address: 00:15:17:2f:e1:55
em1: [FILTER]
pcib5: <ACPI PCI-PCI bridge> at device 0.3 on pci1
pci5: <ACPI PCI bus> on pcib5
twe0: <3ware Storage Controller. Driver version 1.50.01.002> port 0x2000-0x200f mem 0xb8800000-0xb880000f,0xb8000000-0xb87fffff irq 26 at device 2.0 on pci5
twe0: [GIANT-LOCKED]
twe0: [ITHREAD]
twe0: 2 ports, Firmware FE8S 1.05.00.068, BIOS BE7X 1.08.00.048
pcib6: <PCI-PCI bridge> at device 3.0 on pci0
pci6: <PCI bus> on pcib6
pcib7: <ACPI PCI-PCI bridge> at device 4.0 on pci0
pci7: <ACPI PCI bus> on pcib7
pcib8: <ACPI PCI-PCI bridge> at device 5.0 on pci0
pci8: <ACPI PCI bus> on pcib8
pcib9: <ACPI PCI-PCI bridge> at device 6.0 on pci0
pci9: <ACPI PCI bus> on pcib9
pcib10: <PCI-PCI bridge> at device 7.0 on pci0
pci10: <PCI bus> on pcib10
pci0: <base peripheral> at device 8.0 (no driver attached)
pcib11: <ACPI PCI-PCI bridge> irq 16 at device 28.0 on pci0
pci11: <ACPI PCI bus> on pcib11
uhci0: <UHCI (generic) USB controller> port 0x40a0-0x40bf irq 23 at device 29.0 on pci0
uhci0: [GIANT-LOCKED]
uhci0: [ITHREAD]
usb0: <UHCI (generic) USB controller> on uhci0
usb0: USB revision 1.0
uhub0: <Intel UHCI root hub, class 9/0, rev 1.00/1.00, addr 1> on usb0
uhub0: 2 ports with 2 removable, self powered
uhci1: <UHCI (generic) USB controller> port 0x4080-0x409f irq 22 at device 29.1 on pci0
uhci1: [GIANT-LOCKED]
uhci1: [ITHREAD]
usb1: <UHCI (generic) USB controller> on uhci1
usb1: USB revision 1.0
uhub1: <Intel UHCI root hub, class 9/0, rev 1.00/1.00, addr 1> on usb1
uhub1: 2 ports with 2 removable, self powered
uhci2: <UHCI (generic) USB controller> port 0x4060-0x407f irq 23 at device 29.2 on pci0
uhci2: [GIANT-LOCKED]
uhci2: [ITHREAD]
usb2: <UHCI (generic) USB controller> on uhci2
usb2: USB revision 1.0
uhub2: <Intel UHCI root hub, class 9/0, rev 1.00/1.00, addr 1> on usb2
uhub2: 2 ports with 2 removable, self powered
uhci3: <UHCI (generic) USB controller> port 0x4040-0x405f irq 22 at device 29.3 on pci0
uhci3: [GIANT-LOCKED]
uhci3: [ITHREAD]
usb3: <UHCI (generic) USB controller> on uhci3
usb3: USB revision 1.0
uhub3: <Intel UHCI root hub, class 9/0, rev 1.00/1.00, addr 1> on usb3
uhub3: 2 ports with 2 removable, self powered
ehci0: <EHCI (generic) USB 2.0 controller> mem 0xb9700400-0xb97007ff irq 23 at device 29.7 on pci0
ehci0: [GIANT-LOCKED]
ehci0: [ITHREAD]
usb4: EHCI version 1.0
usb4: companion controllers, 2 ports each: usb0 usb1 usb2 usb3
usb4: <EHCI (generic) USB 2.0 controller> on ehci0
usb4: USB revision 2.0
uhub4: <Intel EHCI root hub, class 9/0, rev 2.00/1.00, addr 1> on usb4
uhub4: 8 ports with 8 removable, self powered
pcib12: <ACPI PCI-PCI bridge> at device 30.0 on pci0
pci12: <ACPI PCI bus> on pcib12
vgapci0: <VGA-compatible display> port 0x1000-0x10ff mem 0xb0000000-0xb7ffffff,0xb9600000-0xb960ffff irq 17 at device 12.0 on pci12
isab0: <PCI-ISA bridge> at device 31.0 on pci0
isa0: <ISA bus> on isab0
atapci0: <Intel 63XXESB2 UDMA100 controller> port 0x1f0-0x1f7,0x3f6,0x170-0x177,0x376,0x40c0-0x40cf irq 20 at device 31.1 on pci0
ata0: <ATA channel 0> on atapci0
ata0: [ITHREAD]
ata1: <ATA channel 1> on atapci0
ata1: [ITHREAD]
atapci1: <Intel 63XXESB2 SATA300 controller> port 0x40d8-0x40df,0x40f4-0x40f7,0x40d0-0x40d7,0x40f0-0x40f3,0x4020-0x403f mem 0xb9700000-0xb97003ff irq 20 at device 31.2 on pci0
atapci1: [ITHREAD]
atapci1: AHCI Version 01.10 controller with 6 ports detected
ata2: <ATA channel 0> on atapci1
ata2: [ITHREAD]
ata3: <ATA channel 1> on atapci1
ata3: [ITHREAD]
ata4: <ATA channel 2> on atapci1
ata4: [ITHREAD]
ata5: <ATA channel 3> on atapci1
ata5: [ITHREAD]
ata6: <ATA channel 4> on atapci1
ata6: [ITHREAD]
ata7: <ATA channel 5> on atapci1
ata7: [ITHREAD]
pci0: <serial bus, SMBus> at device 31.3 (no driver attached)
atkbdc0: <Keyboard controller (i8042)> port 0x60,0x64 irq 1 on acpi0
atkbd0: <AT Keyboard> irq 1 on atkbdc0
kbd0 at atkbd0
atkbd0: [GIANT-LOCKED]
atkbd0: [ITHREAD]
sio0: configured irq 4 not in bitmap of probed irqs 0
sio0: port may not be enabled
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
sio0: [FILTER]
sio1: configured irq 3 not in bitmap of probed irqs 0
sio1: port may not be enabled
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
sio1: [FILTER]
orm0: <ISA Option ROMs> at iomem 0xc0000-0xc8fff,0xc9000-0xc9fff,0xca800-0xcb7ff,0xcb800-0xcc7ff on isa0
ppc0: cannot reserve I/O port range
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
ukbd0: <Microsoft Microsoft Wireless Optical Desktop\M-. 1.00, class 0/0, rev 2.00/73.73, addr 2> on uhub0
kbd2 at ukbd0
uhid0: <Microsoft Microsoft Wireless Optical Desktop\M-. 1.00, class 0/0, rev 2.00/73.73, addr 2> on uhub0
ugen0: <American Power Conversion Smart-UPS 1000 FW:600.3.D USB FW:8.1, class 0/0, rev 1.10/0.06, addr 2> on uhub1
Timecounters tick every 1.000 msec
acd0: DVDR <SONY DVD RW DW-Q120A/PYS1> at ata0-master UDMA66
twed0: <Unit 0, TwinStor, Normal> on twe0
twed0: 70910MB (145224064 sectors)
lapic3: Forcing LINT1 to edge trigger
SMP: AP CPU #3 Launched!
lapic1: Forcing LINT1 to edge trigger
SMP: AP CPU #1 Launched!
lapic2: Forcing LINT1 to edge trigger
SMP: AP CPU #2 Launched!
lapic4: Forcing LINT1 to edge trigger
SMP: AP CPU #4 Launched!
lapic7: Forcing LINT1 to edge trigger
SMP: AP CPU #7 Launched!
lapic5: Forcing LINT1 to edge trigger
SMP: AP CPU #5 Launched!
lapic6: Forcing LINT1 to edge trigger
SMP: AP CPU #6 Launched!
WARNING: WITNESS option enabled, expect reduced performance.
Trying to mount root from ufs:/dev/twed0s1a
WARNING: / was not properly dismounted
WARNING: /usr was not properly dismounted
/usr: mount pending error: blocks 11280 files 250
WARNING: /var was not properly dismounted
/var: mount pending error: blocks 16 files 3
WARNING: ZFS is considered to be an experimental feature in FreeBSD.
ZFS filesystem version 6
ZFS storage pool version 6
IP Filter: v4.1.23 initialized. Default = pass all, Logging = enabled
em0: link state changed to UP
lock order reversal: (sleepable after non-sleepable)
1st 0xffffffff807781a8 PFil hook read/write mutex (PFil hook read/write mutex) @ /usr/src/sys/net/pfil.c:73
2nd 0xffffffffb1e2f840 ipf filter load/unload mutex (ipf filter load/unload mutex) @ /usr/src/sys/modules/ipfilter/../../contrib/ipfilter/netinet/fil.c:2419
KDB: stack backtrace:
db_trace_self_wrapper() at db_trace_self_wrapper+0x2a
witness_checkorder() at witness_checkorder+0x5f8
_sx_slock() at _sx_slock+0x51
fr_check() at fr_check+0x61
pfil_run_hooks() at pfil_run_hooks+0xc0
ip_input() at ip_input+0x2c1
ether_demux() at ether_demux+0x1d9
ether_input() at ether_input+0x1d6
em_handle_rxtx() at em_handle_rxtx+0x245
taskqueue_run() at taskqueue_run+0x94
taskqueue_thread_loop() at taskqueue_thread_loop+0x53
fork_exit() at fork_exit+0x12a
fork_trampoline() at fork_trampoline+0xe
--- trap 0, rip = 0, rsp = 0xffffffffabec7d30, rbp = 0 ---
TCP: [192.168.1.103]:58860 to [192.168.1.4]:22 tcpflags 0x18<PUSH,ACK>; syncache_expand: Segment failed SYNCOOKIE authentication, segment rejected (probably spoofed)
TCP: [192.168.1.103]:65516 to [192.168.1.4]:22 tcpflags 0x18<PUSH,ACK>; syncache_expand: Segment failed SYNCOOKIE authentication, segment rejected (probably spoofed)
TCP: [192.168.1.103]:65516 to [192.168.1.4]:22 tcpflags 0x18<PUSH,ACK>; syncache_expand: Segment failed SYNCOOKIE authentication, segment rejected (probably spoofed)
TCP: [192.168.1.103]:65516 to [192.168.1.4]:22 tcpflags 0x18<PUSH,ACK>; syncache_expand: Segment failed SYNCOOKIE authentication, segment rejected (probably spoofed)
TCP: [192.168.1.103]:65516 to [192.168.1.4]:22 tcpflags 0x18<PUSH,ACK>; syncache_expand: Segment failed SYNCOOKIE authentication, segment rejected (probably spoofed)
TCP: [192.168.1.103]:65516 to [192.168.1.4]:22 tcpflags 0x18<PUSH,ACK>; syncache_expand: Segment failed SYNCOOKIE authentication, segment rejected (probably spoofed)
TCP: [192.168.1.103]:65516 to [192.168.1.4]:22 tcpflags 0x18<PUSH,ACK>; syncache_expand: Segment failed SYNCOOKIE authentication, segment rejected (probably spoofed)
TCP: [192.168.1.103]:65516 to [192.168.1.4]:22 tcpflags 0x18<PUSH,ACK>; syncache_expand: Segment failed SYNCOOKIE authentication, segment rejected (probably spoofed)
TCP: [192.168.1.103]:65516 to [192.168.1.4]:22 tcpflags 0x18<PUSH,ACK>; syncache_expand: Segment failed SYNCOOKIE authentication, segment rejected (probably spoofed)
TCP: [192.168.1.103]:65516 to [192.168.1.4]:22 tcpflags 0x18<PUSH,ACK>; syncache_expand: Segment failed SYNCOOKIE authentication, segment rejected (probably spoofed)
TCP: [192.168.1.103]:65516 to [192.168.1.4]:22 tcpflags 0x18<PUSH,ACK>; syncache_expand: Segment failed SYNCOOKIE authentication, segment rejected (probably spoofed)
TCP: [192.168.1.103]:65516 to [192.168.1.4]:22 tcpflags 0x18<PUSH,ACK>; syncache_expand: Segment failed SYNCOOKIE authentication, segment rejected (probably spoofed)
TCP: [192.168.1.103]:65516 to [192.168.1.4]:22 tcpflags 0x18<PUSH,ACK>; syncache_expand: Segment failed SYNCOOKIE authentication, segment rejected (probably spoofed)
TCP: [192.168.1.103]:50111 to [192.168.1.4]:22 tcpflags 0x18<PUSH,ACK>; syncache_expand: Segment failed SYNCOOKIE authentication, segment rejected (probably spoofed)
-------------- next part --------------
cpu HAMMER
ident KIWIKERN
makeoptions DEBUG=-g # Build kernel with gdb(1) debug symbols
options SCHED_ULE # ULE scheduler
options PREEMPTION # Enable kernel thread preemption
options INET # InterNETworking
options INET6 # IPv6 communications protocols
options SCTP # Stream Transmission Control Protocol
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 UFS_GJOURNAL # Enable gjournal-based UFS journaling
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 NTFS # NT File System
options MSDOSFS # MSDOS Filesystem
options CD9660 # ISO 9660 Filesystem
options PROCFS # Process filesystem (requires PSEUDOFS)
options PSEUDOFS # Pseudo-filesystem framework
options GEOM_PART_GPT # GUID Partition Tables.
options GEOM_LABEL # Provides labelization
options COMPAT_43TTY # BSD 4.3 TTY compat [KEEP THIS!]
options COMPAT_IA32 # Compatible with i386 binaries
options COMPAT_FREEBSD4 # Compatible with FreeBSD4
options COMPAT_FREEBSD5 # Compatible with FreeBSD5
options COMPAT_FREEBSD6 # Compatible with FreeBSD6
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 ADAPTIVE_GIANT # Giant mutex is adaptive.
options STOP_NMI # Stop CPUS using NMI instead of IPI
options AUDIT # Security event auditing
# Debugging for use in -current
options KDB # Enable kernel debugger support.
options DDB # Support DDB.
options GDB # Support remote GDB.
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
# Make an SMP-capable kernel by default
options SMP # Symmetric MultiProcessor Kernel
# CPU frequency control
device cpufreq
device coretemp
# Bus support.
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 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)
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 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 # support several AGP chipsets
# 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
device uart # Generic UART driver
# 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 sio, uart and/or ppc drivers):
#device puc
# PCI Ethernet NICs.
device em # Intel PRO/1000 adapter Gigabit Ethernet Card
# Pseudo devices.
device loop # Network loopback
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)
device firmware # firmware assist module
# The `bpf' device enables the Berkeley Packet Filter.
# Be aware of the administrative consequences of enabling this!
# Note that 'bpf' is required for DHCP.
device bpf # Berkeley packet filter
# USB support
device uhci # UHCI PCI->USB interface
device ohci # OHCI PCI->USB interface
device ehci # EHCI PCI->USB interface (USB 2.0)
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
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