System drops off net

Chris Miller ctodd at
Tue Apr 8 19:26:09 PDT 2003

I just installed 4.7-RELEASE-p10 on a Dell Poweredge 4350 server with dual
(but only one used) Intel 82555 10/100 nics (fxp driver). Ssh sessions
intermittantly terminate (on the remote side, still alive on the machine)
and the machine becomes unresponsive to new ssh sessions. If I ping the
machine it seems to wake back up and allow new ssh sessions. No errors,
nothing in the logs. I've had ssh sessions that last 24 hours and others
that die after an hour. I didn't see anything in the email archives.
Ideas? Dmesg output below.


Copyright (c) 1992-2002 The FreeBSD Project.
Copyright (c) 1979, 1980, 1983, 1986, 1988, 1989, 1991, 1992, 1993, 1994
        The Regents of the University of California. All rights reserved.
FreeBSD 4.7-RELEASE-p10 #0: Fri Apr  4 13:42:30 PST 2003
    root at localhost:/usr/obj/usr/src/sys/GENERIC
Timecounter "i8254"  frequency 1193182 Hz
CPU: Pentium III/Pentium III Xeon/Celeron (498.75-MHz 686-class CPU)
  Origin = "GenuineIntel"  Id = 0x673  Stepping = 3

real memory  = 536862720 (524280K bytes)
avail memory = 517185536 (505064K bytes)
Preloaded elf kernel "kernel" at 0xc050f000.
Pentium Pro MTRR support enabled
md0: Malloc disk
Using $PIR table, 9 entries at 0xc00fc7c0
npx0: <math processor> on motherboard
npx0: INT 16 interface
pcib0: <Intel 82443GX host to PCI bridge> on motherboard
pci0: <PCI bus> on pcib0
pcib2: <Intel 82443GX (440 GX) PCI-PCI (AGP) bridge> at device 1.0 on pci0
pci1: <PCI bus> on pcib2
pci1: <ATI Mach64-GD graphics accelerator> at 0.0
pcib3: <DEC 21152 PCI-PCI bridge> at device 2.0 on pci0
pci2: <PCI bus> on pcib3
ahc0: <Adaptec aic7860 Ultra SCSI adapter> port 0xec00-0xecff mem
0xf9fff000-0xf9ffffff irq 10 at device 6.0 on pci2
aic7860: Ultra Single Channel A, SCSI Id=7, 3/253 SCBs
pcib4: <PCI to PCI bridge (vendor=8086 device=0960)> at device 13.0 on
pci3: <PCI bus> on pcib4
amr0: <AMI MegaRAID> mem 0xf6c00000-0xf6ffffff irq 5 at device 13.1 on
amr0: <Series 466> Firmware 3.13, BIOS 1.43, 16MB RAM
isab0: <Intel 82371AB PCI to ISA bridge> at device 7.0 on pci0
isa0: <ISA bus> on isab0
atapci0: <Intel PIIX4 ATA33 controller> at device 7.1 on pci0
atapci0: ATA channel disabled by BIOS
uhci0: <Intel 82371AB/EB (PIIX4) USB controller> irq 0 at device 7.2 on
uhci0: Could not map ports
device_probe_and_attach: uhci0 attach returned 6
chip1: <Intel 82371AB Power management controller> port 0x850-0x85f at
device 7.3 on pci0
fxp0: <Intel Pro 10/100B/100+ Ethernet> port 0xdcc0-0xdcff mem
0xfe100000-0xfe1fffff,0xfe201000-0xfe201fff irq 14 at device 8.0 on pci0
fxp0: Ethernet address omitted
inphy0: <i82555 10/100 media interface> on miibus0
inphy0:  10baseT, 10baseT-FDX, 100baseTX, 100baseTX-FDX, auto
fxp1: <Intel Pro 10/100B/100+ Ethernet> port 0xdc80-0xdcbf mem
0xfe000000-0xfe0fffff,0xfe200000-0xfe200fff irq 11 at device 10.0 on pci0
fxp1: Ethernet address omitted
inphy1: <i82555 10/100 media interface> on miibus1
inphy1:  10baseT, 10baseT-FDX, 100baseTX, 100baseTX-FDX, auto
pcib1: <Intel 82443GX host to AGP bridge> on motherboard
pci4: <PCI bus> on pcib1
orm0: <Option ROMs> at iomem 0xc0000-0xc7fff,0xcc000-0xcc7ff on isa0
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
ata0 at port 0x1f0-0x1f7,0x3f6 irq 14 on isa0
ata1 at port 0x170-0x177,0x376 irq 15 on isa0
atkbdc0: <Keyboard controller (i8042)> at port 0x60,0x64 on isa0
atkbd0: <AT Keyboard> flags 0x1 irq 1 on atkbdc0
kbd0 at atkbd0
vga0: <Generic ISA VGA> at port 0x3c0-0x3df iomem 0xa0000-0xbffff on isa0
sc0: <System console> at flags 0x100 on isa0
sc0: VGA <16 virtual consoles, flags=0x300>
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: SMC-like chipset (ECP/EPP/PS2/NIBBLE) in COMPATIBLE mode
ppc0: FIFO with 16/16/8 bytes threshold
plip0: <PLIP network interface> on ppbus0
lpt0: <Printer> on ppbus0
lpt0: Interrupt-driven port
ppi0: <Parallel I/O> on ppbus0
Waiting 15 seconds for SCSI devices to settle
amrd0: <MegaRAID logical drive> on amr0
amrd0: 51834MB (106156032 sectors) RAID 0 (optimal)
Mounting root from ufs:/dev/amrd0s1a
cd0 at ahc0 bus 0 target 5 lun 0
cd0: <NEC CD-ROM DRIVE:466 1.06> Removable CD-ROM SCSI-2 device
cd0: 20.000MB/s transfers (20.000MHz, offset 15)
cd0: Attempt to query device size failed: NOT READY, Medium not present

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