Date: Wed, 13 Oct 2004 15:11:16 -0400 From: Robert Huff <roberthuff@rcn.com> To: current@freebsd.org Subject: network slowness/freez-up since update 10/11 Message-ID: <16749.32212.87961.64500@jerusalem.litteratus.org>
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I updated my system on Sunday. Since then there have been
network problems: first the network is slow (even within a few
minutes after booting) and eventually (12-18 hours later) the
network - but not the rest of the system - just locks up (can't ping
outside own machine). Rebooting fixes things ... temporarily.
(Dmesg and config file are appended.)
I've seen this before - I think I've _had_ this before - but
can't find it in the mailing-list archives.
Further symptoms:
huff@> netstat -rn
Internet:
Destination Gateway Flags Refs Use Netif Expire
default 209.6.197.1 UGS 0 84429 de0
10 link#2 UC 0 0 de1
10.0.0.1 00:c0:95:f8:09:c1 UHLW 0 34483 lo0
10.0.0.2 00:20:78:b0:49:2f UHLW 0 1179 de1 974
10.255.255.255 ff:ff:ff:ff:ff:ff UHLWb 0 194 de1
127.0.0.1 127.0.0.1 UH 1 7843 lo0
209.6.197 link#1 UC 0 0 de0
209.6.197.1 link#1 UHLW 1 189 de0
209.6.197.67 127.0.0.1 UGHS 0 9 lo0
209.6.197.255 ff:ff:ff:ff:ff:ff UHLWb 0 288 de0
209.6.197.1 is the "other side" of my cable modem.
Normally, the ping looks something like:
huff@>> ping 209.6.197.67
PING 209.6.197.67 (209.6.197.67): 56 data bytes
64 bytes from 209.6.197.67: icmp_seq=0 ttl=64 time=0.086 ms
64 bytes from 209.6.197.67: icmp_seq=1 ttl=64 time=0.084 ms
64 bytes from 209.6.197.67: icmp_seq=2 ttl=64 time=0.111 ms
huff@>> ping 209.6.197.1
PING 209.6.197.1 (209.6.197.1): 56 data bytes
64 bytes from 209.6.197.1: icmp_seq=0 ttl=255 time=1556.512 ms
64 bytes from 209.6.197.1: icmp_seq=1 ttl=255 time=1067.135 ms
64 bytes from 209.6.197.1: icmp_seq=2 ttl=255 time=2026.246 ms
But when things slow down:
huff@> ping 209.6.197.1
PING 209.6.197.1 (209.6.197.1): 56 data bytes
64 bytes from 209.6.197.1: icmp_seq=0 ttl=255 time=23030.490 ms
64 bytes from 209.6.197.1: icmp_seq=1 ttl=255 time=23238.238 ms
64 bytes from 209.6.197.1: icmp_seq=2 ttl=255 time=23139.243 ms
64 bytes from 209.6.197.1: icmp_seq=3 ttl=255 time=23236.930 ms
And eventually:
huff@> ping 209.6.197.1
PING 209.6.197.1 (209.6.197.1): 56 data bytes
ping: sendto: No buffer space available
ping: sendto: No buffer space available
ping: sendto: No buffer space available
However:
huff@>netstat -m
265 mbufs in use
104/17088 mbuf clusters in use (current/max)
0/4/4528 sfbufs in use (current/peak/max)
274 KBytes allocated to network
0 requests for sfbufs denied
0 requests for sfbufs delayed
0 requests for I/O initiated by sendfile
173 calls to protocol drain routines
I'm not familiar with buffer usage, but that doesn't look out
of line for a very lightly loaded system.
Robert Huff
Copyright (c) 1979, 1980, 1983, 1986, 1988, 1989, 1991, 1992, 1993, 1994
The Regents of the University of California. All rights reserved.
FreeBSD 6.0-CURRENT #0: Mon Oct 11 18:23:23 EDT 2004
huff@jerusalem.litteratus.org:/usr/obj/usr/src/sys/JERUSALEM
WARNING: WITNESS option enabled, expect reduced performance.
Timecounter "i8254" frequency 1193182 Hz quality 0
CPU: Intel(R) Pentium(R) 4 CPU 2.26GHz (2266.76-MHz 686-class CPU)
Origin = "GenuineIntel" Id = 0xf24 Stepping = 4
Features=0x3febfbff<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>
real memory = 536854528 (511 MB)
avail memory = 515690496 (491 MB)
npx0: [FAST]
npx0: <math processor> on motherboard
npx0: INT 16 interface
acpi0: <ASUS P4S533> on motherboard
acpi0: Power Button (fixed)
Timecounter "ACPI-safe" frequency 3579545 Hz quality 1000
acpi_timer0: <24-bit timer at 3.579545MHz> port 0xe408-0xe40b on acpi0
cpu0: <ACPI CPU> on acpi0
acpi_button0: <Power Button> on acpi0
pcib0: <ACPI Host-PCI bridge> port 0xcf8-0xcff on acpi0
pci0: <ACPI PCI bus> on pcib0
agp0: <SiS 645DX host to AGP bridge> mem 0xf4000000-0xf7ffffff at device 0.0 on pci0
pcib1: <ACPI PCI-PCI bridge> at device 1.0 on pci0
pci1: <ACPI PCI bus> on pcib1
drm0: <Matrox G400/G450 (AGP)> mem 0xf3000000-0xf37fffff,0xf3800000-0xf3803fff,0xfc000000-0xfdffffff irq 11 at device 0.0 on pci1
info: [drm] AGP at 0xf4000000 64MB
info: [drm] Initialized mga 3.1.0 20021029 on minor 0
isab0: <PCI-ISA bridge> at device 2.0 on pci0
isa0: <ISA bus> on isab0
ohci0: <SiS 5571 USB controller> mem 0xf2800000-0xf2800fff irq 14 at device 2.2 on pci0
ohci0: [GIANT-LOCKED]
usb0: OHCI version 1.0, legacy support
usb0: SMM does not respond, resetting
usb0: <SiS 5571 USB controller> on ohci0
usb0: USB revision 1.0
uhub0: SiS OHCI root hub, class 9/0, rev 1.00/1.00, addr 1
uhub0: 3 ports with 3 removable, self powered
uhub1: Texas Instruments TUSB2046 hub, class 9/0, rev 1.10/1.25, addr 2
uhub1: 4 ports with 4 removable, bus powered
ums0: Microsoft Microsoft IntelliMouse\M-. Explorer, rev 1.10/1.14, addr 3, iclass 3/1
ums0: 5 buttons and Z dir.
ukbd0: Logitech Logitech USB Keyboard, rev 1.10/15.00, addr 4, iclass 3/1
kbd0 at ukbd0
ugen0: American Power Conversion Back-UPS RS 1500 FW:8.g8 .D USB FW:g8, rev 1.10/1.06, addr 5
ohci1: <SiS 5571 USB controller> mem 0xf2000000-0xf2000fff irq 5 at device 2.3 on pci0
ohci1: [GIANT-LOCKED]
usb1: OHCI version 1.0, legacy support
usb1: SMM does not respond, resetting
usb1: <SiS 5571 USB controller> on ohci1
usb1: USB revision 1.0
uhub2: SiS OHCI root hub, class 9/0, rev 1.00/1.00, addr 1
uhub2: 3 ports with 3 removable, self powered
pci0: <mass storage, ATA> at device 2.5 (no driver attached)
pcm0: <CMedia CMI8738> port 0xa800-0xa8ff at device 5.0 on pci0
ahc0: <Adaptec 2940 Ultra2 SCSI adapter> port 0xa400-0xa4ff mem 0xf1000000-0xf1000fff irq 10 at device 9.0 on pci0
ahc0: [GIANT-LOCKED]
aic7890/91: Ultra2 Wide Channel A, SCSI Id=7, 32/253 SCBs
de0: <Digital 21140 Fast Ethernet> port 0xa000-0xa07f mem 0xf0800000-0xf080007f at device 11.0 on pci0
de0: [GIANT-LOCKED]
de0: ZNYX ZX34X 21140 [10-100Mb/s] pass 1.1
de0: Ethernet address: 00:c0:95:f8:17:af
de0: if_start running deferred for Giant
de1: <Digital 21140 Fast Ethernet> port 0x9800-0x987f mem 0xf0000000-0xf000007f at device 12.0 on pci0
de1: [GIANT-LOCKED]
de1: ZNYX ZX34X 21140 [10-100Mb/s] pass 1.2
de1: Ethernet address: 00:c0:95:f8:09:c1
de1: if_start running deferred for Giant
fdc0: <floppy drive controller> port 0x3f7,0x3f2-0x3f5 irq 6 drq 2 on acpi0
fdc0: [FAST]
fd0: <1440-KB 3.5" drive> on fdc0 drive 0
ppc0 port 0x778-0x77b,0x378-0x37f irq 7 drq 3 on acpi0
ppc0: SMC-like chipset (ECP/EPP/PS2/NIBBLE) in COMPATIBLE mode
ppc0: FIFO with 16/16/16 bytes threshold
ppbus0: <Parallel port bus> on ppc0
plip0: <PLIP network interface> on ppbus0
lpt0: <Printer> on ppbus0
lpt0: Interrupt-driven port
ppi0: <Parallel I/O> on ppbus0
sio0 port 0x3f8-0x3ff irq 4 on acpi0
sio0: type 16550A
sio1 port 0x2f8-0x2ff irq 3 on acpi0
sio1: type 16550A
orm0: <ISA Option ROMs> at iomem 0xcc000-0xd17ff,0xc8000-0xcbfff,0xc0000-0xc7fff on isa0
sc0: <System console> on isa0
sc0: VGA <16 virtual consoles, flags=0x200>
vga0: <Generic ISA VGA> at port 0x3c0-0x3df iomem 0xa0000-0xbffff on isa0
Timecounter "TSC" frequency 2266758464 Hz quality 800
Timecounters tick every 10.000 msec
IPv6 packet filtering initialized, default to accept, logging limited to 100 packets/entry
ipfw2 initialized, divert enabled, rule-based forwarding disabled, default to deny, logging limited to 100 packets/entry by default
witness_get: witness exhausted
acpi_cpu: throttling enabled, 8 steps (100% to 12.5%), currently 100.0%
de0: enabling 100baseTX port
de1: enabling 100baseTX port
de0: link down: cable problem?
sa0 at ahc0 bus 0 target 2 lun 0
sa0: <DEC DLT2000 15/30 GB 840B> Removable Sequential Access SCSI-2 device
sa0: 5.000MB/s transfers (5.000MHz, offset 15)
cd0 at ahc0 bus 0 target 3 lun 0
cd0: <TOSHIBA DVD-ROM SD-M1711 1005> Removable CD-ROM SCSI-2 device
cd0: 10.000MB/s transfers (10.000MHz, offset 16)
cd0: Attempt to query device size failed: NOT READY, Medium not present
da1 at ahc0 bus 0 target 4 lun 0
da1: <SEAGATE SX150176LC BA11> Fixed Direct Access SCSI-2 device
da1: 80.000MB/s transfers (40.000MHz, offset 15, 16bit), Tagged Queueing Enabled
da1: 47702MB (97693755 512 byte sectors: 255H 63S/T 6081C)
da0 at ahc0 bus 0 target 0 lun 0
da0: <IBM DDRS-34560D DC1B> Fixed Direct Access SCSI-2 device
da0: 80.000MB/s transfers (40.000MHz, offset 15, 16bit), Tagged Queueing Enabled
da0: 4357MB (8925000 512 byte sectors: 255H 63S/T 555C)
Mounting root from ufs:/dev/da0s1a
de0: link down: cable problem?
de0: link down: cable problem?
de0: enabling 10baseT port
de1: enabling 100baseTX port
#
# JERUSALEM
#
# For more information read the handbook part System Administration ->
# Configuring the FreeBSD Kernel -> The Configuration File.
# The handbook is available in /usr/share/doc/handbook or online as
# latest version from the FreeBSD World Wide Web server
# <URL:http://www.FreeBSD.ORG/>;
#
# An exhaustive list of options and more detailed explanations of the
# device lines is present in the ./LINT configuration file. If you are
# in doubt as to the purpose or necessity of a line, check first in LINT.
#
# $Id: GENERIC,v 1.125 1998/10/16 01:30:11 obrien Exp $
machine i386
#cpu "I386_CPU"
#cpu "I486_CPU"
#cpu "I586_CPU"
cpu I686_CPU
ident JERUSALEM
maxusers 0
options CPU_ENABLE_SSE
#options MATH_EMULATE #Support for x87 emulation
options SCHED_ULE
options INET #InterNETworking
options INET6 #IPv6 communications protocols
options MAXDSIZ="(1024*1024*1024)"
options MAXSSIZ="(256*1024*1024)"
#options IPX
#options NCP #NetWare Core protocol
options FFS #Berkeley Fast Filesystem
options MSDOSFS #MSDOS Filesystem
options CD9660 #ISO 9660 Filesystem
#options NWFS #NetWare 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 SCSI_DELAY=100 #Be pessimistic about Joe SCSI
# note: value is in milliseconds
#options SAFETY
# Debugging for use in -current
options KDB # Enable kernel debugger support.
options DDB #Enable the kernel debugger
makeoptions DEBUG=-g
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
options COMPAT_43 #Compatible with BSD 4.3 [KEEP THIS!]
options COMPAT_FREEBSD4 #Compatible with FreeBSD4
options SYSVSHM #SYSV-style shared memory
options SYSVMSG #SYSV-style message queues
options SYSVSEM #SYSV-style semaphores
options COMPAT_AOUT
# see java/62837
#options COMPAT_LINUX
#options LINPROCFS
options PROCFS
options PSEUDOFS
# For StarOffice
#options P1003_1B
#options _KPOSIX_PRIORITY_SCHEDULING
#options _KPOSIX_VERSION=199309L
#options MD5
# For Mars-nwe NetWare server
#options IPX
# for WINE
#options USER_LDT #allow user-level control of i386 ldt
#
#
#config kernel root on da0
device isa
device eisa
device pci
#device fdc0 at isa? port IO_FD1 irq 6 drq 2c
device fdc
#device fd at fdc drive 0
#disk fd1 at fdc drive 1
# Unless you know very well what you're doing, leave ft0 at drive 2, or
# remove the line entirely if you don't need it. Trying to configure
# it on another unit might cause surprises, see PR kern/7176.
#tape ft0 at fdc0 drive 2
#options "CMD640" # work around CMD640 chip deficiency
#controller wdc0 at isa? port "IO_WD1" bio irq 14 vector wdintr
#disk wd0 at wdc0 drive 0
#disk wd1 at wdc0 drive 1
#controller wdc1 at isa? port "IO_WD2" bio irq 15 vector wdintr
#disk wd2 at wdc1 drive 0
#disk wd3 at wdc1 drive 1
#options ATAPI #Enable ATAPI support for IDE bus
#options ATAPI_STATIC #Don't do it as an LKM
#device wcd0 #IDE CD-ROM
#device wfd0 #IDE Floppy (e.g. LS-120)
# A single entry for any of these controllers (ncr, ahb, ahc, amd) is
# sufficient for any number of installed devices.
#controller ncr0
#controller amd0
#controller ahb0
device ahc
#controller isp0
# This controller offers a number of configuration options, too many to
# document here - see the LINT file in this directory and look up the
# dpt0 entry there for much fuller documentation on this.
#controller dpt0
#controller adv0 at isa? port ? cam irq ?
#controller adw0
#controller bt0 at isa? port ? cam irq ?
#controller aha0 at isa? port ? cam irq ?
#controller uha0 at isa? port "IO_UHA0" bio irq ? drq 5 vector uhaintr
#controller aic0 at isa? port 0x340 bio irq 11 vector aicintr
#controller nca0 at isa? port 0x1f88 bio irq 10 vector ncaintr
#controller nca1 at isa? port 0x350 bio irq 5 vector ncaintr
#controller sea0 at isa? bio irq 5 iomem 0xc8000 iosiz 0x2000 vector seaintr
device scbus
device da # SCSI disk
device sa # SCSI tape
device pass
device cd # Only need one of these, the code dynamically grows
#device wt0 at isa? port 0x300 bio irq 5 drq 1 vector wtintr
#device mcd0 at isa? port 0x300 bio irq 10 vector mcdintr
#controller matcd0 at isa? port 0x230 bio
#device scd0 at isa? port 0x230 bio
# syscons is the default console driver, resembling an SCO console
#device sc at isa? flags 0x100
device sc
# at isa? port "IO_KBD" conflicts tty irq 1 vector scintr
# Enable this and PCVT_FREEBSD for pcvt vt220 compatible console driver
## 2/3/1999: new model console stuff
#device atkbdc
#device atkbd
#device vt
device vga
device mgadrm
device agp
#device vt0 at isa? port "IO_KBD" conflicts tty irq 1 vector pcrint
options XSERVER # support for X server
#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 npx
#
# Laptop support (see LINT for more options)
#
#device apm0 at isa? disable flags 0x31 # Advanced Power Management
# PCCARD (PCMCIA) support
#controller card0
#device pcic0 at card?
#device pcic1 at card?
device sio
#device lpt0 at isa? port? tty irq 7 vector lptintr
# Parallel-Port Bus
#
# Parallel port bus support is provided by the `ppbus' device.
# Multiple devices may be attached to the parallel port, devices
# are automatically probed and attached when found.
#
# Supported devices:
# vpo Iomega Zip Drive
# Requires SCSI disk support ('scbus' and 'da'), best
# performance is achieved with ports in EPP 1.9 mode.
# nlpt Parallel Printer, use _instead_ of lpt0
# plip Parallel network interface
# ppi General-purpose I/O ("Geek Port")
# pps Pulse per second Timing Interface
# lpbb Philips official parallel port I2C bit-banging interface
#
# Supported interfaces:
# ppc ISA-bus parallel port interfaces.
#
device ppc
device ppbus
device lpt
device plip
device ppi
############
# USB support
device uhci
device ohci
device usb
device ugen
#device uhid
device ukbd
options KBD_INSTALL_CDEV
device ums
#device uscanner
############
#device psm at isa? port "IO_KBD" conflicts tty irq 12 vector psmintr
#device psm
# Order is important here due to intrusive probes, do *not* alphabetize
# this list of network interfaces until the probes have been fixed.
# Right now it appears that the ie0 must be probed before ep0. See
# revision 1.20 of this file.
device de
#device de0
#device de1
#device fxp0
#device tl0
#device tx0
#device vx0
#device xl0
#device ed0 at isa? port 0x380 net irq 9 iomem 0xd8000 vector edintr
#device ie0 at isa? port 0x300 net irq 10 iomem 0xd0000 vector ieintr
#device ep0 at isa? port 0x300 net irq 10 vector epintr
#device ex0 at isa? port? net irq? vector exintr
#device fe0 at isa? port 0x300 net irq ? vector feintr
#device le0 at isa? port 0x300 net irq 5 iomem 0xd0000 vector le_intr
#device lnc0 at isa? port 0x280 net irq 10 drq 0 vector lncintr
#device ze0 at isa? port 0x300 net irq 10 iomem 0xd8000 vector zeintr
#device zp0 at isa? port 0x300 net irq 10 iomem 0xd8000 vector zpintr
#device cs0 at isa? port 0x300 net irq ? vector csintr
#
# see /usr/src/UPDATING
#
device mem # Memory and kernel memory devices
device io # I/O device
#device null # Null and zero devices
device random
device bpf
device loop # Network loopback
device ether
#device sl 1
#device ppp 0
device tun
device gif
device pty
#device gzip # Exec gzipped a.out's
#
# for IPFW/natd
#
options IPFIREWALL #firewall
options IPFIREWALL_VERBOSE #print information about
# dropped packets
#options IPFIREWALL_FORWARD #enable xparent proxy support
options IPFIREWALL_VERBOSE_LIMIT=100 #limit verbosity
options IPDIVERT #divert sockets
#
# IPv6
#
options IPV6FIREWALL #firewall for IPv6
options IPV6FIREWALL_VERBOSE
options IPV6FIREWALL_VERBOSE_LIMIT=100
options IPV6FIREWALL_DEFAULT_TO_ACCEPT
#
# sound driver
#
#device pcm
device sound
device snd_cmi
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