Date: Mon, 27 Mar 2000 13:04:42 -0500 (EST) From: Howard Leadmon <howardl@account.abs.net> To: freebsd-stable@freebsd.org, freebsd-hackers@freebsd.org Subject: Troubles with network & buffers.. Any Ideas?? Message-ID: <200003271804.NAA94040@account.abs.net>
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Hello, I am running a 4.0-STABLE machine which is being used to host an
Undernet IRC server, and the machine keeps dying at times, or should I say
the networking side of it is at least dying. At first I thought it might
have been related to the dc (DEC Chip) based drivers, so I replaced it with
a EEpro board using the fxp driver, but the same results.
I have also set MNBCLUSTERS to 20480, and when I do a netstat I see in
general plenty of free clusters, but suspect I must be running out of some
other resource. If I do a netstat -m, I see info like this:
u2$ netstat -m
1697/2144/81920 mbufs in use (current/peak/max):
498 mbufs allocated to data
1199 mbufs allocated to packet headers
221/514/20480 mbuf clusters in use (current/peak/max)
1296 Kbytes allocated to network (50% in use)
0 requests for memory denied
0 requests for memory delayed
0 calls to protocol drain routines
When the machine last froze, the Kbytes allocated to the network was 99% in
use, and the mbufs were up to about 20K of the 80K allocated, but I saw no
calls for memory denied or delayed.
Still after a few hours of uptime, I start seeing errors like this, and then
the machines network interface dies and I have to reboot to get everything
back in operation:
Mar 27 12:39:00 u2 /kernel: fxp0: device timeout
Mar 27 12:39:00 u2 syslogd: sendto: No buffer space available
Mar 27 12:39:38 u2 last message repeated 2 times
Mar 27 12:41:32 u2 last message repeated 6 times
Mar 27 12:44:15 u2 syslogd: sendto: No buffer space available
Mar 27 12:44:04 u2 last message repeated 8 times
Not sure what other information to send, but here is a dmesg on the machine,
and if anyone has any ideas, or needs more info please let me know. It's
very annoying to have to reboot this machine daily, sometimes more often.. :(
Copyright (c) 1992-2000 The FreeBSD Project.
Copyright (c) 1982, 1986, 1989, 1991, 1993
The Regents of the University of California. All rights reserved.
FreeBSD 4.0-STABLE #8: Wed Mar 22 18:31:51 EST 2000
howardl@u2.abs.net:/usr/src/sys/compile/U2
Timecounter "i8254" frequency 1193182 Hz
CPU: Pentium II/Pentium II Xeon/Celeron (551.25-MHz 686-class CPU)
Origin = "GenuineIntel" Id = 0x665 Stepping = 5
Features=0x183fbff<FPU,VME,DE,PSE,TSC,MSR,PAE,MCE,CX8,APIC,SEP,MTRR,PGE,MCA,CMOV,PAT,PSE36,MMX,FXSR>
real memory = 402587648 (393152K bytes)
config> q
avail memory = 387022848 (377952K bytes)
Programming 24 pins in IOAPIC #0
IOAPIC #0 intpin 2 -> irq 0
FreeBSD/SMP: Multiprocessor motherboard
cpu0 (BSP): apic id: 0, version: 0x00040011, at 0xfee00000
cpu1 (AP): apic id: 1, version: 0x00040011, at 0xfee00000
io0 (APIC): apic id: 2, version: 0x00170011, at 0xfec00000
Preloaded elf kernel "kernel" at 0xc02c8000.
Preloaded userconfig_script "/boot/kernel.conf" at 0xc02c809c.
Pentium Pro MTRR support enabled
md0: Malloc disk
npx0: <math processor> on motherboard
npx0: INT 16 interface
pcib0: <Intel 82443BX (440 BX) host to PCI bridge> on motherboard
pci0: <PCI bus> on pcib0
pcib1: <Intel 82443BX (440 BX) PCI-PCI (AGP) bridge> at device 1.0 on pci0
pci1: <PCI bus> on pcib1
isab0: <Intel 82371AB PCI to ISA bridge> at device 7.0 on pci0
isa0: <ISA bus> on isab0
atapci0: <Intel PIIX4 ATA33 controller> port 0xf000-0xf00f at device 7.1 on pci0
ata0: at 0x1f0 irq 14 on atapci0
pci0: <Intel 82371AB/EB (PIIX4) USB controller> at 7.2 irq 5
Timecounter "PIIX" frequency 3579545 Hz
chip1: <Intel 82371AB Power management controller> port 0x5000-0x500f at device 7.3 on pci0
fxp0: <Intel EtherExpress Pro 10/100B Ethernet> port 0xd400-0xd41f mem 0xd5400000-0xd54fffff,0xd5510000-0xd5510fff irq 17 at device 13.0 on pci0
fxp0: Ethernet address 00:a0:c9:c7:fb:ff
pci0: <Trident model 9660 VGA-compatible display device> at 15.0 irq 16
atapci1: <HighPoint HPT366 ATA66 controller> port 0xe000-0xe0ff,0xdc00-0xdc03,0xd800-0xd807 irq 18 at device 19.0 on pci0
atapci2: <HighPoint HPT366 ATA66 controller> port 0xec00-0xecff,0xe800-0xe803,0xe400-0xe407 irq 18 at device 19.1 on pci0
fdc0: <NEC 72065B or clone> at port 0x3f0-0x3f5,0x3f7 irq 6 drq 2 on isa0
fdc0: FIFO enabled, 8 bytes threshold
fd0: <1440-KB 3.5" drive> on fdc0 drive 0
atkbdc0: <keyboard controller (i8042)> at port 0x60-0x6f on isa0
atkbd0: <AT Keyboard> irq 1 on atkbdc0
vga0: <Generic ISA VGA> at port 0x3c0-0x3df iomem 0xa0000-0xbffff on isa0
sc0: <System console> on isa0
sc0: VGA <16 virtual consoles, flags=0x200>
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: <Parallel port> at port 0x378-0x37f irq 7 on isa0
ppc0: Generic chipset (EPP/NIBBLE) in COMPATIBLE mode
ppi0: <Parallel I/O> on ppbus0
lpt0: <Printer> on ppbus0
lpt0: Interrupt-driven port
plip0: <PLIP network interface> on ppbus0
APIC_IO: Testing 8254 interrupt delivery
APIC_IO: routing 8254 via IOAPIC #0 intpin 2
SMP: AP CPU #1 Launched!
ad0: 8693MB <ST39140A> [17662/16/63] at ata0-master using UDMA33
Mounting root from ufs:/dev/ad0s1a
---
Howard Leadmon - howardl@abs.net - http://www.abs.net
ABSnet Internet Services - Phone: 410-361-8160 - FAX: 410-361-8162
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