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Date:      Fri, 28 Apr 2000 09:49:20 +0200
From:      Olivier Cortes <olive@deep-ocean.net>
To:        freebsd-questions@freebsd.org
Subject:   looutput: mbuf allocation problem
Message-ID:  <20000428094920.A939@syrenna.deep-ocean.net>

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Hello everybody !
i'm new to the list.

i encouter this problem every day, when my server decides it. Somtimes it is whem the uptime is about 20h.
It can't wait any longer: when i log on the server, it says every machine i try to connect to is down:

ping pozeidon.deep-ocean.net: Host is down

of course they are not.
all network connections fail from the server to other computers and vice-versa.
I must reboot. Knowing the fact that it is my SERVER, you'll think (like me) it's not very funny !

so do you know where this "looutput: mbuf allocation failed" is coming from ?
is it a hardware memory problem ? could it be a daemon who doesn't release the memory it takes ? do you need some details to solve the problem ? Here are some:

Computer:
Celeron 500Mhz
128Mo SDRAM
10+8Go IDE (DMA) disks
Banshee 16 Mo
IBM EtherJet 10/100 Mo3Com Etherlink 10Mbps (don't remember exact name)
SCSI Tekram DC 310 (Sym 810a)

i use these softs intensively:

Custom kernel (file included)
--- don't use ipfw (just allow any to any) because it runs on a dedicated machine (P133) whose uptime is 20days...)
Apache + php 1.3.12 - 3.0.15 recompiled with postgreSQL support
Squid 32Mo Max mem use, conifgured to release mem when it doesn't need it
postgreSQL 6.5.3 (standard port)
sendmail standard installed (custom config file)
popa3d (standard port, no special compil options)
proftpd 1.2p10 (standard port)
ssh standard installed ( connections are slow to establish, even on my local net, sometimes it takes 5 to 10 seconds to validate the password)          

thanks if you can help.
best regards
Olivier
olive@deep-ocean.net 

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Content-Disposition: attachment; filename=SYRENNA

#
# SYRENNA -- kernel configuration file for FreeBSD/i386 on Syrenna Server 
#
# $FreeBSD: src/sys/i386/conf/GENERIC,v 1.246 2000/03/09 16:32:55 jlemon Exp $

machine		"i386"
cpu		"I686_CPU"
ident		"SYRENNA"
maxusers	64

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

options 	INET			#InterNETworking
options 	FFS			#Berkeley Fast Filesystem
options 	FFS_ROOT		#FFS usable as root device [keep this!]
options 	KERNFS			#Kernel filesystem

options		"EXT2FS"
options 	MFS			#Memory Filesystem
options 	MD_ROOT			#MD is a potential root device
options 	NFS			#Network Filesystem
options 	MSDOSFS			#MSDOS Filesystem
options 	"CD9660"		#ISO 9660 Filesystem
options 	PROCFS			#Process filesystem

options 	"COMPAT_43"		#Compatible with BSD 4.3 [KEEP THIS!]
options 	SCSI_DELAY=1500		#Delay (in ms) before probing SCSI

options 	UCONSOLE		#Allow users to grab the console
options 	USERCONFIG		#boot -c editor

options		QUOTA

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 extentions
options 	_KPOSIX_PRIORITY_SCHEDULING
options 	MD5

device		isa0
device		eisa0
device		pci0

device		fdc0	at isa? port IO_FD1 irq 6 drq 2
device		fd0	at fdc0 drive 0
#device		fd1	at fdc0 drive 1

# ATA and ATAPI devices
#device		ata0	at isa? port IO_WD1 irq 14
#device		ata1	at isa? port IO_WD2 irq 15
device		ata 2
device		atadisk0			# ATA disk drives
device		atadisk1			# ATA disk drives
device		atadisk2			# ATA disk drives
device		atadisk3			# ATA disk drives
#device		atapicd0			# ATAPI CDROM drives
options 	ATA_STATIC_ID		#Static device numbering
options 	ATA_ENABLE_ATAPI_DMA	#Enable DMA on ATAPI devices

device		sym0		# NCR/Symbios Logic (newer chipsets)

# SCSI peripherals
device		scbus0		# SCSI bus (required)
device		da		# Direct Access (disks)
device		sa		# Sequential Access (tape etc)
device		cd 2		# CD
device		pass0		# Passthrough device (direct SCSI access)

# atkbdc0 controls both the keyboard and the PS/2 mouse
device		atkbdc0	at isa? port IO_KBD
device		atkbd0	at atkbdc? irq 1
device		psm0	at atkbdc? irq 12

device		vga0	at isa?
pseudo-device	splash
device		sc0	at isa?
options 	SC_HISTORY_SIZE=200	# number of history buffer lines
#device		vt0	at isa?
options 	XSERVER			# support for X server on a vt console
#options 	FAT_CURSOR		# start with block cursor

device		npx0	at nexus? port IO_NPX irq 13
device		apm0    at nexus? disable flags 0x20

device		sio0	at isa? port IO_COM1 flags 0x10 irq 4
device		sio1	at isa? port IO_COM2 irq 3
device		ppc0	at isa? irq 7
device		ppbus0		# Parallel port bus (required)
device		lpt0		# Printer
device		ppi0		# Parallel port interface device
device		vpo0		# Requires scbus and da


# PCI Ethernet NICs.
device		miibus0
device		fxp0		# Intel EtherExpress PRO/100B (82557, 82558)
device		xl0		# 3Com 3c90x (``Boomerang'', ``Cyclone'')

# Pseudo devices - the number indicates how many units to allocated.
pseudo-device	loop		# Network loopback
pseudo-device	ether		# Ethernet support
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	bpf		#Berkeley packet filter
options 	PPP_BSDCOMP		#PPP BSD-compress support
options 	PPP_DEFLATE		#PPP zlib/deflate/gzip support
options 	PPP_FILTER		#enable bpf filtering (needs bpf)

options 	IPFIREWALL		#firewall
#options 	IPFILTER		#ipfilter support
#options 	IPFILTER_LOG		#ipfilter logging
options 	IPDIVERT		#divert sockets
options 	IPSTEALTH		#support for stealth forwarding
options 	IPFIREWALL_VERBOSE	#print information about dropped pkts
options 	IPFIREWALL_VERBOSE_LIMIT=10
options 	IPFIREWALL_FORWARD	#enable transparent proxy support

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

device		sbc
device		pcm
options 	SYM_SETUP_PCI_PARITY	#-PCI parity checking






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