Date: Sun, 13 Jun 1999 20:07:48 -0700 (PDT) From: Thomas Dean <tomdean@ix.netcom.com> To: freebsd-current@FreeBSD.ORG Subject: Very Strange Local Network Behavior Message-ID: <199906140307.UAA31932@ix.netcom.com>
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I am running 4.0-current SMP as of yesterday.
Since the make world and rebuilding the kernel, the local network is
very strange.
I changed the local network to be two machines, connected with a 10
foot coax, properly terminated. Ping starts off OK, a little slow. I
seem to recall it being ~1ms for this setup. Then, it changes to take
> 1 second. Pinging my ISP via ppp takes ~190ms, about normal.
I have attached the output of ping and dmesg.
tomdean
==============================
# ping tddti
PING tddti.tddhome (192.168.1.2): 56 data bytes
64 bytes from 192.168.1.2: icmp_seq=0 ttl=32 time=4.810 ms
64 bytes from 192.168.1.2: icmp_seq=1 ttl=32 time=7.483 ms
64 bytes from 192.168.1.2: icmp_seq=2 ttl=32 time=6.774 ms
64 bytes from 192.168.1.2: icmp_seq=3 ttl=32 time=18.802 ms
64 bytes from 192.168.1.2: icmp_seq=4 ttl=32 time=5.451 ms
64 bytes from 192.168.1.2: icmp_seq=5 ttl=32 time=3.111 ms
64 bytes from 192.168.1.2: icmp_seq=6 ttl=32 time=87.740 ms
64 bytes from 192.168.1.2: icmp_seq=7 ttl=32 time=4.245 ms
64 bytes from 192.168.1.2: icmp_seq=8 ttl=32 time=4.702 ms
64 bytes from 192.168.1.2: icmp_seq=9 ttl=32 time=3.673 ms
64 bytes from 192.168.1.2: icmp_seq=10 ttl=32 time=8.894 ms
64 bytes from 192.168.1.2: icmp_seq=11 ttl=32 time=6.028 ms
64 bytes from 192.168.1.2: icmp_seq=12 ttl=32 time=4.990 ms
64 bytes from 192.168.1.2: icmp_seq=13 ttl=32 time=3.107 ms
64 bytes from 192.168.1.2: icmp_seq=14 ttl=32 time=27.055 ms
64 bytes from 192.168.1.2: icmp_seq=15 ttl=32 time=4.181 ms
64 bytes from 192.168.1.2: icmp_seq=16 ttl=32 time=4.713 ms
64 bytes from 192.168.1.2: icmp_seq=17 ttl=32 time=3.650 ms
64 bytes from 192.168.1.2: icmp_seq=18 ttl=32 time=5.951 ms
64 bytes from 192.168.1.2: icmp_seq=19 ttl=32 time=141.150 ms
64 bytes from 192.168.1.2: icmp_seq=20 ttl=32 time=1011.133 ms
64 bytes from 192.168.1.2: icmp_seq=21 ttl=32 time=1011.119 ms
64 bytes from 192.168.1.2: icmp_seq=22 ttl=32 time=1011.110 ms
64 bytes from 192.168.1.2: icmp_seq=23 ttl=32 time=1011.130 ms
64 bytes from 192.168.1.2: icmp_seq=24 ttl=32 time=1011.091 ms
64 bytes from 192.168.1.2: icmp_seq=25 ttl=32 time=1011.127 ms
64 bytes from 192.168.1.2: icmp_seq=26 ttl=32 time=1011.106 ms
64 bytes from 192.168.1.2: icmp_seq=27 ttl=32 time=1011.161 ms
64 bytes from 192.168.1.2: icmp_seq=28 ttl=32 time=1011.091 ms
64 bytes from 192.168.1.2: icmp_seq=29 ttl=32 time=1011.164 ms
64 bytes from 192.168.1.2: icmp_seq=30 ttl=32 time=1011.131 ms
^C
--- tddti.tddhome ping statistics ---
32 packets transmitted, 31 packets received, 3% packet loss
round-trip min/avg/max/stddev = 3.107/370.286/1011.164/476.031 ms
=== dmesg ======================
# dmesg
Copyright (c) 1992-1999 The FreeBSD Project.
Copyright (c) 1982, 1986, 1989, 1991, 1993
The Regents of the University of California. All rights reserved.
FreeBSD 4.0-CURRENT #0: Sat Jun 12 14:22:28 PDT 1999
tomdean@celebris:/usr/src/sys/compile/CELEBRIS-SMP
Timecounter "i8254" frequency 1193182 Hz
CPU: Pentium/P54C (586-class CPU)
Origin = "GenuineIntel" Id = 0x525 Stepping=5
Features=0x3bf<FPU,VME,DE,PSE,TSC,MSR,MCE,CX8,APIC>
real memory = 100663296 (98304K bytes)
avail memory = 94887936 (92664K bytes)
Programming 16 pins in IOAPIC #0
FreeBSD/SMP: Multiprocessor motherboard
cpu0 (BSP): apic id: 0, version: 0x00030010, at 0xfee00000
cpu1 (AP): apic id: 1, version: 0x00030010, at 0xfee00000
io0 (APIC): apic id: 2, version: 0x000f0011, at 0xfec00000
Preloaded elf kernel "kernel" at 0xc02c7000.
Intel Pentium detected, installing workaround for F00F bug
npx0: <math processor> on motherboard
npx0: INT 16 interface
pcib0: <PCI host bus adapter> on motherboard
pci0: <PCI bus> on pcib0
chip0: <Intel 82434NX (Neptune) PCI cache memory controller> at device 0.0 on pci0
ncr0: <ncr 53c810 fast10 scsi> irq 11 at device 1.0 on pci0
isab0: <Intel 82378IB PCI to ISA bridge> at device 2.0 on pci0
vga-pci0: <Matrox MGA 2064W graphics accelerator> irq 9 at device 6.0 on pci0
de0: <Digital 21041 Ethernet> irq 10 at device 8.0 on pci0
de0: DEC DE450-CA 21041 [10Mb/s] pass 1.1
de0: address 00:00:f8:02:76:db
isa0: <ISA bus> on motherboard
fdc0: <NEC 72065B or clone> at port 0x3f0-0x3f7 irq 6 drq 2 on isa0
fdc0: FIFO enabled, 8 bytes threshold
fd0: <1440-KB 3.5" drive> at fdc0 drive 0
atkbdc0: <keyboard controller (i8042)> at port 0x60-0x6f on isa0
atkbd0: <AT Keyboard> irq 1 on atkbdc0
psm0: <PS/2 Mouse> irq 12 on atkbdc0
psm0: model Generic PS/2 mouse, device ID 0
vga0: <Generic ISA VGA> on isa0
sc0: <System console> on isa0
sc0: VGA color <16 virtual consoles, flags=0x0>
sio0 at port 0x3f8-0x3ff irq 4 flags 0x10 on isa0
sio0: type 16550A
sio1 at port 0x2f8-0x2ff irq 3 on isa0
sio1: type 16550A
ppc0 at port 0x378-0x37f irq 7 on isa0
ppc0: PC87334 chipset (PS2/NIBBLE) in COMPATIBLE mode
lpt0: <generic printer> on ppbus 0
lpt0: Interrupt-driven port
APIC_IO: Testing 8254 interrupt delivery
APIC_IO: routing 8254 via pin 2
Waiting 10 seconds for SCSI devices to settle
SMP: AP CPU #1 Launched!
da0 at ncr0 bus 0 target 0 lun 0
da0: <QUANTUM FIREBALL1080S 1Q09> Fixed Direct Access SCSI-2 device
da0: 10.000MB/s transfers (10.000MHz, offset 8)
da0: 1042MB (2134305 512 byte sectors: 255H 63S/T 132C)
cd0 at ncr0 bus 0 target 5 lun 0
cd0: <TOSHIBA CD-ROM XM-5401TA 3605> Removable CD-ROM SCSI-2 device
cd0: 4.237MB/s transfers (4.237MHz, offset 8)
cd0: cd present [59444 x 2048 byte records]
da2 at ncr0 bus 0 target 2 lun 0
da2: <QUANTUM EMPIRE_1080S 1240> Fixed Direct Access SCSI-2 device
da2: 10.000MB/s transfers (10.000MHz, offset 8), Tagged Queueing Enabled
da2: 1029MB (2109376 512 byte sectors: 255H 63S/T 131C)
da1 at ncr0 bus 0 target 1 lun 0
da1: <QUANTUM FIREBALL ST3.2S 0F0C> Fixed Direct Access SCSI-2 device
da1: 10.000MB/s transfers (10.000MHz, offset 8), Tagged Queueing Enabled
da1: 3090MB (6328861 512 byte sectors: 255H 63S/T 393C)
changing root device to da1s1a
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