The attached kernel panic occurs when a connection is made that
would pass through an ipfw pipe configured as:
ipfw add 1000 pipe 1 tcp from any 119 to any out
ipfw add 1001 pipe 2 tcp from any to any 119 in
ipfw pipe 1 config bw 64Kbit/s
ipfw pipe 2 config bw 64Kbit/s
I can reproduce this at will (and have the vmcore), so if anyone needs
more details, just let me know.
This is -current of a few days ago (18th Nov 2000, if I recall correctly).
-Russell
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This GDB was configured as "i386-unknown-freebsd"...
IdlePTD 4771840
initial pcb at 3de1e0
panicstr: page fault
panic messages:
---
Fatal trap 12: page fault while in kernel mode
fault virtual address = 0x7f7b1028
fault code = supervisor write, page not present
instruction pointer = 0x8:0xc0248899
stack pointer = 0x10:0xc7098be4
frame pointer = 0x10:0xc7098c30
code segment = base 0x0, limit 0xfffff, type 0x1b
= DPL 0, pres 1, def32 1, gran 1
processor eflags = interrupt enabled, resume, IOPL = 0
current process = 12 (swi6: clock)
trap number = 12
panic: page fault
syncing disks... 5 5
done
Uptime: 1m27s
dumping to dev #ad/1, offset 131072
dump ata0: resetting devices .. done
64 63 62 61 60 59 58 57 56 55 54 53 52 51 50 49 48 47 46 45 44 43 42 41 40 39 38 37 36
35 34 33 32 31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6
5 4 3 2 1
---
#0 dumpsys () at /b/src/sys/kern/kern_shutdown.c:477
477 if (dumping++) {
(kgdb) where
#0 dumpsys () at /b/src/sys/kern/kern_shutdown.c:477
#1 0xc01e26b3 in boot (howto=256) at /b/src/sys/kern/kern_shutdown.c:320
#2 0xc01e2ad8 in poweroff_wait (junk=0xc039e68f, howto=-966215744)
at /b/src/sys/kern/kern_shutdown.c:568
#3 0xc03386b8 in trap_fatal (frame=0xc7098ba4, eva=2138771496)
at /b/src/sys/i386/i386/trap.c:941
#4 0xc033843d in trap_pfault (frame=0xc7098ba4, usermode=0, eva=2138771496)
at /b/src/sys/i386/i386/trap.c:855
#5 0xc0337ef7 in trap (frame={tf_fs = 16, tf_es = 16, tf_ds = 16, tf_edi = 0,
tf_esi = 0, tf_ebp = -955675600, tf_isp = -955675696, tf_ebx = 1,
tf_edx = 2138771456, tf_ecx = -24083, tf_eax = -1063531204,
tf_trapno = 12, tf_err = 2, tf_eip = -1071347559, tf_cs = 8,
tf_eflags = 66118, tf_esp = -1054004288, tf_ss = -1054027776})
at /b/src/sys/i386/i386/trap.c:438
#6 0xc0248899 in ip_output (m0=0xc09bcd00, opt=0x0, ro=0xc12d2be4, flags=0,
imo=0x0) at /b/src/sys/netinet/ip_output.c:806
#7 0xc023e526 in transmit_event (pipe=0xc12cd000)
at /b/src/sys/netinet/ip_dummynet.c:394
#8 0xc023e72b in ready_event (q=0xc12c2100)
at /b/src/sys/netinet/ip_dummynet.c:525
#9 0xc023f467 in dummynet_io (pipe_nr=1, dir=1, m=0xc09bcd00, ifp=0xc09ae400,
ro=0xc7098d98, dst=0xc12729d0, rule=0xc123a3a0, flags=0)
at /b/src/sys/netinet/ip_dummynet.c:1062
#10 0xc024858b in ip_output (m0=0xc09bcd00, opt=0x0, ro=0xc7098d98, flags=0,
imo=0x0) at /b/src/sys/netinet/ip_output.c:497
#11 0xc024f00c in tcp_respond (tp=0x0, ipgen=0xc09bcd3c, th=0xc09bcd50,
m=0xc09bcd00, ack=2736966641, seq=0, flags=20)
at /b/src/sys/netinet/tcp_subr.c:458
#12 0xc024cfc3 in tcp_input (m=0xc09bcd00, off0=20, proto=6)
at /b/src/sys/netinet/tcp_input.c:2303
#13 0xc0244dd8 in ip_input (m=0xc09bcd00) at /b/src/sys/netinet/ip_input.c:729
#14 0xc023e53a in transmit_event (pipe=0xc12cef00)
at /b/src/sys/netinet/ip_dummynet.c:399
#15 0xc023e72b in ready_event (q=0xc12c2180)
at /b/src/sys/netinet/ip_dummynet.c:525
#16 0xc023eb63 in dummynet (unused=0x0) at /b/src/sys/netinet/ip_dummynet.c:660
#17 0xc01e9ad4 in softclock (dummy=0x0) at /b/src/sys/kern/kern_timeout.c:134
#18 0xc01d95cd in sithd_loop (dummy=0x0) at /b/src/sys/kern/kern_intr.c:227
(kgdb) quit
#
# 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/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 NOTES configuration file. 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 1.278 2000/09/20 17:30:20 wpaul Exp $
machine i386
cpu I586_CPU
cpu I686_CPU
ident RV
maxusers 128
#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 MATH_EMULATE #Support for x87 emulation
options INET #InterNETworking
options INET6 #IPv6 communications protocols
options FFS #Berkeley Fast Filesystem
options FFS_ROOT #FFS usable as root device [keep this!]
options SOFTUPDATES #Enable FFS soft updates support
options MFS #Memory Filesystem
#options DEVFS #Device Filesystem
options MD_ROOT #MD is a potential root device
options NFS #Network Filesystem
options NFS_ROOT #NFS usable as root device, NFS required
options MSDOSFS #MSDOS Filesystem
options CD9660 #ISO 9660 Filesystem
options CD9660_ROOT #CD-ROM usable as root, CD9660 required
options PROCFS #Process filesystem
options COMPAT_43 #Compatible with BSD 4.3 [KEEP THIS!]
options SCSI_DELAY=1000 #Delay (in ms) before probing SCSI
options UCONSOLE #Allow users to grab the console
options USERCONFIG #boot -c editor
options VISUAL_USERCONFIG #visual boot -c editor
options KTRACE #ktrace(1) support
options SYSVSHM #SYSV-style shared memory
options SYSVMSG #SYSV-style message queues
options SYSVSEM #SYSV-style semaphores
options P1003_1B #Posix P1003_1B real-time extensions
options _KPOSIX_PRIORITY_SCHEDULING
options KBD_INSTALL_CDEV # install a CDEV entry in /dev
# To make an SMP kernel, the next two are needed
#options SMP # Symmetric MultiProcessor Kernel
#options APIC_IO # Symmetric (APIC) I/O
# Optionally these may need tweaked, (defaults shown):
#options NCPU=2 # number of CPUs
#options NBUS=8 # number of busses
#options NAPIC=1 # number of IO APICs
#options NINTR=24 # number of INTs
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
options ATA_STATIC_ID #Static device numbering
#options ATA_ENABLE_ATAPI_DMA #Enable DMA on ATAPI devices
# SCSI Controllers
device ahb # EISA AHA1742 family
device ahc # AHA2940 and onboard AIC7xxx devices
device amd # AMD 53C974 (Teckram DC-390(T))
device isp # Qlogic family
#device ncr # NCR/Symbios Logic
device sym # NCR/Symbios Logic (newer chipsets + those of `ncr')
device adv
device adw
device bt
device aha 1
device aic
# RAID controllers interfaced to the SCSI subsystem
device asr # DPT SmartRAID V, VI and Adaptec SCSI RAID
device dpt # DPT Smartcache III, IV - See NOTES for options!
device mly # Mylex AcceleRAID/eXtremeRAID
# SCSI peripherals
device scbus # SCSI bus (required)
device da # Direct Access (disks)
device sa # Sequential Access (tape etc)
device cd # CD
device pass # Passthrough device (direct SCSI access)
# RAID controllers
device aac # Adaptec FSA RAID
device ida # Compaq Smart RAID
device amr # AMI MegaRAID
device mlx # Mylex DAC960 family
# atkbdc0 controls both the keyboard and the PS/2 mouse
device atkbdc 1
device atkbd
device psm
device vga
# splash screen/screen saver
device splash
# syscons is the default console driver, resembling an SCO console
device sc 1
# 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
# If you have a ThinkPAD, uncomment this along with the rest of the PCVT lines
#options PCVT_SCANSET=2 # IBM keyboards are non-std
# Floating point support - do not disable.
device npx
# Power management support (see NOTES for more options)
device apm
# PCCARD (PCMCIA) support
device card
device pcic
# Serial (COM) ports
device sio
# 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 fxp # Intel EtherExpress PRO/100B (82557, 82558)
device wx # Intel Gigabit Ethernet Card (``Wiseman'')
# PCI Ethernet NICs that use the common MII bus controller code.
device miibus # MII bus support
device dc # DEC/Intel 21143 and various workalikes
device pcn # AMD Am79C79x PCI 10/100 NICs
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 tl # Texas Instruments ThunderLAN
device tx # SMC 9432TX (83c170 ``EPIC'')
device vr # VIA Rhine, Rhine II
device wb # Winbond W89C840F
device xl # 3Com 3c90x (``Boomerang'', ``Cyclone'')
# ISA Ethernet NICs.
device ed
device ex
device ep
device fe
device cs
device sn
# WaveLAN/IEEE 802.11 wireless NICs. Note: the WaveLAN/IEEE really
# exists only as a PCMCIA device, so there is no ISA attatement needed
# and resources will always be dynamically assigned by the pccard code.
device wi
# Aironet 4500/4800 802.11 wireless NICs. Note: the declaration below will
# work for PCMCIA and PCI cards, as well as ISA cards set to ISA PnP
# mode (the factory default). If you set the switches on your ISA
# card for a manually chosen I/O address and IRQ, you must specify
# those paremeters here.
device an
# BayStack 660 and others
device awi
# Xircom pccard ethernet
device xe
# Pseudo devices - the number indicates how many units to allocated.
device random # Entropy device
device loop # Network loopback
device ether # Ethernet support
device sl # Kernel SLIP
device ppp 1 # Kernel PPP
device tun # Packet tunnel.
device pty # Pseudo-ttys (telnet etc)
device md # Memory "disks"
device gif 4 # IPv6 and IPv4 tunneling
device faith 1 # 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
# USB Ethernet, requires mii
device aue # ADMtek USB ethernet
device cue # CATC USB ethernet
device kue # Kawasaki LSI USB ethernet
# Local mods
options DUMMYNET
options MROUTING # Multicast routing
options IPFIREWALL #firewall
options IPFIREWALL_VERBOSE #print information about
# dropped packets
options IPFIREWALL_FORWARD #enable transparent proxy support
options IPFIREWALL_VERBOSE_LIMIT=100 #limit verbosity
options IPFIREWALL_DEFAULT_TO_ACCEPT #allow everything by default
options IPV6FIREWALL #firewall for IPv6
options IPV6FIREWALL_VERBOSE
options IPV6FIREWALL_VERBOSE_LIMIT=100
options IPV6FIREWALL_DEFAULT_TO_ACCEPT
options IPDIVERT #divert sockets
