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Date:      Tue, 5 Aug 2003 10:07:02 -0400 (EDT)
From:      Kenneth Culver <culverk@yumyumyum.org>
To:        John Walsh <high@bsdmail.org>
Cc:        freebsd-questions@freebsd.org
Subject:   Re: FreeBSD 4.x reboots when high netload
Message-ID:  <20030805100559.F31788@alpha.yumyumyum.org>
In-Reply-To: <20030805120647.9316.qmail@bsdmail.com>
References:  <20030805120647.9316.qmail@bsdmail.com>

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> I have a problem, my FreeBSD server reboots when the netload is high. If
> I transfer large files, or a lot of files it does it. It is configured
> as a gateway, so if the other computers are downloading a lot, it
> reboots. I don't understand why, I recently upgraded from 4.6 to 4.8
> because of this issue, but that hasn't helped. I get this message alot,
> maybe that's is? : arp: 66.169.49.1 moved from 00:03:6c:4b:74:8c to
> 00:03:6c:4b:74:54 on ed0 I hope I didn't remove/add something in my
> kernel that was needed. "/var/log/messages" doesn't give me any info on
> what happened.

That problem means that someone is takin an IP that originally belonged to
another computer. It shouldn't cause your crashes. Generally though, when
you are having crashes in BSD that nobody else has, it's time to suspect
hardware problems.

Ken

>
> Here is my kernel config (rc.conf is at the end):
>
> #
> # 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 ./LINT configuration file. If you are
> # in doubt as to the purpose or necessity of a line, check first in LINT.
> #
> # $FreeBSD: src/sys/i386/conf/GENERIC,v 1.246.2.51.2.2 2003/03/25 23:35:15 jhb Exp $
>
> machine		i386
> #cpu		I386_CPU
> #cpu		I486_CPU
> cpu		I586_CPU
> #cpu		I686_CPU
> ident		USASRV
> maxusers	0
>
> #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 	UFS_DIRHASH		#Improve performance on big directories
> options 	MFS			#Memory 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=15000	#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 	ICMP_BANDLIM		#Rate limit bad replies
> 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.
>
>
> # QUOTA support
> options		QUOTA		# Turn on user quotas
>
> # GATEWAY/FIREWALL support
> options		IPFIREWALL	# Protect network with firewall
> options		IPDIVERT
> options		IPFIREWALL_VERBOSE
> options		IPFIREWALL_FORWARD
> options		IPFILTER
> options		IPFILTER_LOG
> options		IPFIREWALL_VERBOSE_LIMIT=100
> #options	IPFIREWALL_DEFAULT_TO_ACCEPT
> options		MROUTING
> options 	IPSTEALTH	# Hide server from traceroute
> options		ICMP_BANDLIM	# Protect server from D.O.S. attacks
>
> # Some misc options
> options		USER_LDT	# Allow i386 user ldt access
>
>
>
> # To make an SMP kernel, the next two are needed
> #options 	SMP			# Symmetric MultiProcessor Kernel
> #options 	APIC_IO			# Symmetric (APIC) I/O
>
> # To support HyperThreading, HTT is needed in addition to SMP and APIC_IO
> #options 	HTT			# HyperThreading Technology
>
> device		isa
> device		eisa
> device		pci
>
> # Floppy drives
> device		fdc0	at isa? port IO_FD1 irq 6 drq 2
> device		fd0	at fdc0 drive 0
> device		fd1	at fdc0 drive 1
> #
> # If you have a Toshiba Libretto with its Y-E Data PCMCIA floppy,
> # don't use the above line for fdc0 but the following one:
> #device		fdc0
>
> # ATA and ATAPI devices
> device		ata0	at isa? port IO_WD1 irq 14
> device		ata1	at isa? port IO_WD2 irq 15
> 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
>
> # 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)
> #options 	SYM_SETUP_LP_PROBE_MAP=0x40
> 				# Allow ncr to attach legacy NCR devices when
> 				# both sym and ncr are configured
>
> #device		adv0	at isa?
> #device		adw
> #device		bt0	at isa?
> #device		aha0	at isa?
> #device		aic0	at isa?
>
> #device		ncv		## NCR 53C500
> #device		nsp		# Workbit Ninja SCSI-3
> #device		stg		# TMC 18C30/18C50
>
> # 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 interfaced to the SCSI subsystem
> #device		asr		# DPT SmartRAID V, VI and Adaptec SCSI RAID
> #device		dpt		# DPT Smartcache - See LINT for options!
> #device		iir		# Intel Integrated RAID
> #device		mly		# Mylex AcceleRAID/eXtremeRAID
> #device		ciss		# Compaq SmartRAID 5* series
>
> # RAID controllers
> #device		aac		# Adaptec FSA RAID, Dell PERC2/PERC3
> #device		aacp		# SCSI passthrough for aac (requires CAM)
> #device		ida		# Compaq Smart RAID
> #device		amr		# AMI MegaRAID
> #device		mlx		# Mylex DAC960 family
> #device		twe		# 3ware Escalade
>
> # atkbdc0 controls both the keyboard and the PS/2 mouse
> device		atkbdc0	at isa? port IO_KBD
> device		atkbd0	at atkbdc? irq 1 flags 0x1
> device		psm0	at atkbdc? irq 12
>
> device		vga0	at isa?
>
> # splash screen/screen saver
> pseudo-device	splash
>
> # syscons is the default console driver, resembling an SCO console
> device		sc0	at isa? flags 0x100
>
> # Enable this and PCVT_FREEBSD for pcvt vt220 compatible console driver
> #device		vt0	at isa?
> #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
>
> device		agp		# support several AGP chipsets
>
> # Floating point support - do not disable.
> device		npx0	at nexus? port IO_NPX irq 13
>
> # Power management support (see LINT for more options)
> device		apm0	at nexus? disable flags 0x20 # Advanced Power Management
>
> # PCCARD (PCMCIA) support
> #device		card
> #device		pcic0	at isa? irq 0 port 0x3e0 iomem 0xd0000
> #device		pcic1	at isa? irq 0 port 0x3e2 iomem 0xd4000 disable
>
> # Serial (COM) ports
> device		sio0	at isa? port IO_COM1 flags 0x10 irq 4
> device		sio1	at isa? port IO_COM2 irq 3
> device		sio2	at isa? disable port IO_COM3 irq 5
> device		sio3	at isa? disable port IO_COM4 irq 9
>
> # Parallel port
> device		ppc0	at isa? irq 7
> 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 (``Wiseman'')
> 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 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 EtherPower II (83c170 ``EPIC'')
> device		vr		# VIA Rhine, Rhine II
> device		wb		# Winbond W89C840F
> device		xl		# 3Com 3c90x (``Boomerang'', ``Cyclone'')
> device		bge		# Broadcom BCM570x (``Tigon III'')
>
> # ISA Ethernet NICs.
> # 'device ed' requires 'device miibus'
> device		ed0	at isa? disable port 0x280 irq 10 iomem 0xd8000
> device		ex
> device		ep
> device		fe0	at isa? disable port 0x300
> # Xircom Ethernet
> device		xe
> # PRISM I IEEE 802.11b wireless NIC.
> #device		awi
> # 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		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 parameters here.
> #device		an
> # The probe order of these is presently determined by i386/isa/isa_compat.c.
> device		ie0	at isa? disable port 0x300 irq 10 iomem 0xd0000
> #device		le0	at isa? disable port 0x300 irq 5 iomem 0xd0000
> device		lnc0	at isa? disable port 0x280 irq 10 drq 0
> device		cs0	at isa? disable port 0x300
> device		sn0	at isa? disable port 0x300 irq 10
>
> # Pseudo devices - the number indicates how many units to allocate.
> pseudo-device	loop		# Network loopback
> pseudo-device	ether		# Ethernet support
> #pseudo-device	sl	1	# Kernel SLIP
> #pseudo-device	ppp	1	# Kernel PPP
> pseudo-device	tun		# Packet tunnel.
> pseudo-device	pty		# Pseudo-ttys (telnet etc)
> pseudo-device	md		# Memory "disks"
> #pseudo-device	gif		# IPv6 and IPv4 tunneling
> #pseudo-device	faith	1	# IPv6-to-IPv4 relaying (translation)
> pseudo-device	snp	3	# To snoop on users (watch)
>
> # The `bpf' pseudo-device enables the Berkeley Packet Filter.
> # Be aware of the administrative consequences of enabling this!
> pseudo-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		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		uscanner	# Scanners
> #device		urio		# Diamond Rio MP3 Player
> # USB Ethernet, requires mii
> #device		aue		# ADMtek USB ethernet
> #device		cue		# CATC USB ethernet
> #device		kue		# Kawasaki LSI USB ethernet
>
>
>
>
> and here is my rc.conf :
>
>
> # -- sysinstall generated deltas -- # Mon Jul  8 21:07:21 2002
> # Created: Mon Jul  8 21:07:21 2002
> # Enable network daemons for user convenience.
> # Please make all changes to this file, not to /etc/defaults/rc.conf.
> # This file now contains just the overrides from /etc/defaults/rc.conf.
> font8x14="NO"
> font8x16="swiss-8x16"
> font8x8="swiss-8x8"
> inetd_enable="YES"
> kern_securelevel_enable="NO"
> linux_enable="YES"
> saver="blank"
> enable_quotas="NO"	# Need to test this
>
> #**********************************
> #          NETWORK CONFIG         *
> #**********************************
> nfs_client_enable="YES"
> nfs_client_flags="-n 5"         # Flags to nfsiod
> nfs_reserved_port_only="YES"
> nfs_server_enable="YES"
> nfs_server_flags="-t -n 5"   # Flags to nfsd : TCP only, run 5 insts. of nfsd
> sendmail_enable="NO"
> sshd_enable="YES"
> gateway_enable="YES"
> network_interfaces="ed0 xl0 lo0"
> ifconfig_ed0="DHCP"		# internet connection
> ifconfig_xl0="inet 192.168.0.1 netmask 255.255.255.0"	# Internal network
>
>
> #********************************
> #	  NATD & FIREWALL       *
> #********************************
> firewall_enable="YES"	# Turn on firewall ;-)
> firewall_type="OPEN"	# open for now....
> firewall_quiet="NO"	# Be verbose
> natd_enable="YES"	# Turn on natd
> natd_interface="ed0"	# Route internet
> natd_flags="-m -s -f /etc/natd.conf"
>
>
> I hope someone ca help.
>
> Thank you,
> John
>
> --
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