Date: Wed, 29 Jul 1998 07:57:30 +0200 From: Andreas Klemm <andreas@klemm.gtn.com> To: hm@hcs.de Cc: current@FreeBSD.ORG Subject: Re: something new in current, that might create a leased line ? Message-ID: <19980729075730.A1480@klemm.gtn.com> In-Reply-To: <m0z1OHb-0000f3C@hcswork.hcs.de>; from Hellmuth Michaelis on Wed, Jul 29, 1998 at 06:56:11AM %2B0200 References: <19980728230947.A3455@klemm.gtn.com> <m0z1OHb-0000f3C@hcswork.hcs.de>
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On Wed, Jul 29, 1998 at 06:56:11AM +0200, Hellmuth Michaelis wrote:
> >From the keyboard of Andreas Klemm:
>
> > The name server requests doesn't stop, so the ISDN line stays up.
> > Look at the bad cksum lines ...
> > Current / make world from yesterday ...
> >
> > 23:06:24.775498 pppak04.gtn.com.1048 > a.root-servers.net.domain: 23139 (45)
> > (ttl 64, id 2698)
> > 23:06:25.232311 248.17.235.100 > a.root-servers.net: (frag 17664:-27@1272)
> > [tos 0x3] (ttl 146, bad cksum 4000!, optlen=40[|ip])
>
> You didn't switch on VJ compression (link0) by accident ?
No.
isppp0: flags=2851<UP,POINTOPOINT,RUNNING,SIMPLEX,LINK1> mtu 1500
inet 194.231.123.169 --> 194.231.123.161 netmask
Btw, I got a reply from
Stefan Schmidt <sts@mediaintegration.com>
indicating an "off-by-4 error in i4b_isppp.c around line 600.
I don't know which changes he made exactly, but he told me, that
after the change the errors went away.
And these are my kernel settings:
#
# ISDN kernel
#
machine "i386"
cpu "I686_CPU"
ident ISDNSMP
# rse's recommendations for heavily users apache servers
maxusers 256
#options SOMAXCONN="256"
#options "NMBCLUSTER=4096"
#options "CHILD_MAX=512"
#options "OPEN_MAX=512"
# Options for the VM subsystem
#options PQ_NOOPT # No coloring
#options PQ_LARGECACHE # color for 512k/16k cache
options PQ_HUGECACHE # color for 1024k/16k cache
options SMP # Symmetric MultiProcessor Kernel
options APIC_IO # Symmetric (APIC) I/O
options INCLUDE_CONFIG_FILE # Include this file in kernel
#options USERCONFIG #boot -c editor
#options VISUAL_USERCONFIG #visual boot -c editor
options DDB
options KTRACE #kernel tracing
options SHOW_BUSYBUFS # busy buffers on shutdown ?
options INET #InterNETworking
options IPFIREWALL #firewall
options IPFIREWALL_VERBOSE #print information about dropped packets
options "IPFIREWALL_VERBOSE_LIMIT=500" #limit verbosity
options IPDIVERT #divert sockets
#options IPFILTER #kernel ipfilter support
#options IPFILTER_LOG #ipfilter logging
options "P1003_1B"
options "_KPOSIX_PRIORITY_SCHEDULING"
options "_KPOSIX_VERSION=199309L"
options FFS #Berkeley Fast Filesystem
#options NFS #Network File System
options MFS #Memory File System
#options UNION #Union filesystem
options "CD9660" #ISO 9660 filesystem
options MSDOSFS #MS DOS File System
options PROCFS #Process filesystem
options NSWAPDEV=3 #Allow this many swap-devices.
#options QUOTA #enable disk quotas
options SOFTUPDATES #Kirk McKusick's code
# DEVFS and SLICE are experimental but work.
# SLICE disables too much old code so enabling it in LINT would be bad
#options DEVFS #devices filesystem
#options SLICE #devfs based disk handling
# misc options
options "COMPAT_43" #Compatible with BSD 4.3 [KEEP THIS!]
options UCONSOLE #Allow users to grab the console
options SYSVSHM,SYSVSEM,SYSVMSG #shared memory (X11)
options COMPAT_LINUX # Linux Binary compatibility
#options USER_LDT # for Wine
options "MD5"
#options "VM86"
config kernel root on sd1
# ISA and PCI BUS support
controller isa0
controller pci0
# Floppy Disk Controller
controller fdc0 at isa? port "IO_FD1" bio irq 6 drq 2 vector fdintr
disk fd0 at fdc0 drive 0
# SCSI Devices
# AHA 2940U
controller ahc0
controller scbus0 at ahc0
disk sd0 at scbus0 target 0 unit 0
disk sd3 at scbus0 target 1 unit 0
tape st0 at scbus0 target 4
device worm0 at scbus0 target 5
device cd0 at scbus0 target 6
# AHA 2940
controller ahc1
controller scbus1 at ahc1
disk sd1 at scbus1 target 1 unit 0
disk sd2 at scbus1 target 2 unit 0
device pt0 at scbus1 target 6 unit 0
options SCSI_DELAY=15 # Be pessimistic about Joe SCSI device
options "CD9660_ROOTDELAY=8"
options AHC_TAGENABLE # tagged command queueing
options AHC_ALLOW_MEMIO
options AHC_SCBPAGING_ENABLE
options SCSI_REPORT_GEOMETRY
# SCO compatible system console
device sc0 at isa? port "IO_KBD" tty irq 1 vector scintr
options MAXCONS=4 # number of virtual consoles
options SC_HISTORY_SIZE=200 # number of history buffer lines
# The pcvt console driver (vt220 compatible).
#device vt0 at isa? port "IO_KBD" tty irq 1 vector pcrint
#options XSERVER # support for running an X server.
#options FAT_CURSOR # start with block cursor
# floating point unit
device npx0 at isa? port "IO_NPX" flags 0x1 irq 13 vector npxintr
# serial devices on mainboard
# `flags' for serial drivers that support consoles (only for sio now):
# 0x10 enable console support for this unit. The other console flags
# are ignored unless this is set. Enabling console support does
# not make the unit the preferred console - boot with -h or set
# the 0x20 flag for that. Currently, at most one unit can have
# console support; the first one (in config file order) with
# this flag set is preferred. Setting this flag for sio0 gives
# the old behaviour.
# 0x20 force this unit to be the console (unless there is another
# higher priority console). This replaces the COMCONSOLE option.
# 0x40 reserve this unit for low level console operations. Do not
#
device sio0 at isa? port "IO_COM1" tty irq 4 flags 0x20 vector siointr
device sio1 at isa? port "IO_COM2" tty irq 3 vector siointr
options BREAK_TO_DEBUGGER #a BREAK on a comconsole goes to DDB,
#if available.
options CONSPEED=38400 #default speed for serial console
#(default 9600)
# parallel device on mainboard
device lpt0 at isa? port? tty irq 7 vector lptintr
# PS/2 mouse on mainboard
device psm0 at isa? port "IO_KBD" conflicts tty irq 12 vector psmintr
options "PSM_ACCEL=1" # PS/2 mouse acceleration
# Joystick
#device joy0 at isa? port "IO_GAME"
# Network 3COM PCI
device vx0
#device ed0 at isa? port 0x280 net irq 10 iomem 0xd0000 vector edintr
# Soundblaster 16
# SoundBlaster DSP driver - for SB, SB Pro, SB16, PAS(emulating SB)
# SoundBlaster 16 DSP driver - for SB16 - requires sb0 device
# SoundBlaster 16 MIDI - for SB16 - requires sb0 device
# Yamaha OPL-2/OPL-3 FM - for SB, SB Pro, SB16, PAS
# controller snd0
# device sb0 at isa? port 0x220 irq 5 conflicts drq 1 vector sbintr
# device sbxvi0 at isa? port? irq? drq 5 conflicts
# device sbmidi0 at isa? port 0x330 irq? conflicts
# device opl0 at isa? port 0x388 conflicts
# pcm: PCM audio through various sound cards.
# New Sound code
device pcm0 at isa? port ? tty irq 5 drq 1 flags 0x15 vector pcmintr
# Pseudo devices
pseudo-device loop #Network loopback device
pseudo-device ether #Generic Ethernet
pseudo-device vn 1 #Vnode driver (turns a file into a dev.)
pseudo-device snp 3 #Snoop device - to look at pty/vty/etc..
pseudo-device disc #Discard device
pseudo-device bpfilter 4 #Berkeley packet filter
pseudo-device pty 16 #Pseudo ttys - can go as high as 256
pseudo-device gzip # Exec gzipped a.out's
pseudo-device ccd 4 #Concatenated disk driver
pseudo-device tun 1 #Tunnel driver (user process ppp(8))
#pseudo-device ppp 1 #Point-to-point protocol
#options PPP_BSDCOMP #PPP BSD-compress support
#options PPP_DEFLATE #PPP zlib/deflate/gzip support
#options PPP_FILTER #enable bpf filtering (needs bpfilter)
# Size of the kernel message buffer. Should be N * pagesize.
options "MSGBUF_SIZE=40960"
## BISDN
#options IPI_VJ # Van Jacobsen header compression support
##options "IPI_DIPA=3" # send ip accounting packets every 3 seconds
#options TELES_HAS_MEMCPYB # bisdn 0.97
#
## Teles S0/16.3 ################################################### IRQ 9 ##
#controller tel0 at isa? port 0xd80 net irq 9 vector telintr
#pseudo-device disdn
#pseudo-device isdn
#pseudo-device ipi 4
#pseudo-device ispy 4
#pseudo-device itel 1
options "I4B_SMP_WORKAROUND"
# i4b passive ISDN cards support (isic - I4b Siemens Isdn Chipset driver)
# Teles S0/16.3
options "TEL_S0_16_3"
device isic0 at isa? port 0xd80 net irq 9 flags 0x04 vector isicintr
# i4b passive cards D channel handling
# Q.921
pseudo-device "i4bq921"
# Q.931
pseudo-device "i4bq931"
# common passive and active layer 4
# layer 4
pseudo-device "i4b"
# userland driver to do ISDN tracing (for passive cards oly)
pseudo-device "i4btrc" 4
# userland driver to control the whole thing
pseudo-device "i4bctl"
# userland driver for access to raw B channel
pseudo-device "i4brbch" 4
# userland driver for telephony
pseudo-device "i4btel" 2
# network driver for IP over raw HDLC ISDN
pseudo-device "i4bipr" 4
# enable VJ header compression detection for ipr i/f
options IPR_VJ
# network driver for sync PPP over ISDN
pseudo-device "i4bisppp" 4
pseudo-device sppp 4
--
Andreas Klemm http://www.FreeBSD.ORG/~andreas
What gives you 90% more speed, for example, in kernel compilation ?
http://www.FreeBSD.ORG/~fsmp/SMP/akgraph-a/graph1.html
"NT = Not Today" (Maggie Biggs) ``powered by FreeBSD SMP''
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