Watchdog Reset

[Phillip Walters]

Hi All,

I've got FreeBSD 5.2 installed on a SunFire v100.  After a seemingly 
random period of time, I always get the following:

Watchdog Reset
Externally Initiated Reset

After this, I'm dropped to the 'ok' prompt where I can boot the machine 
back up.  Anyone have any clue what's going on here?

-bash-2.05b$ dmesg
Copyright (c) 1992-2004 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 5.2-RELEASE #0: Sun Jan 11 06:09:12 GMT 2004
     root at bobbi.cse.buffalo.edu:/usr/obj/usr/src/sys/GENERIC
Preloaded elf kernel "/boot/kernel/kernel" at 0xc0452000.
Timecounter "tick" frequency 500000000 Hz quality 0
real memory  = 2147483648 (2048 MB)
avail memory = 2082471936 (1986 MB)
cpu0: Sun Microsystems UltraSparc-IIe Processor (500.00 MHz CPU)
nexus0: <OpenFirmware Nexus device>
pcib0: <U2P UPA-PCI bridge> on nexus0
pcib0: Sabre, impl 0, version 0, ign 0x7c0, bus A
pcib0: [FAST]
pcib0: [FAST]
DVMA map: 0x60000000 to 0x63ffffff
pci0: <OFW PCI bus> on pcib0
isab0: <PCI-ISA bridge> at device 7.0 on pci0
isa0: <ISA bus> on isab0
pci0: <old, non-VGA display device> at device 3.0 (no driver attached)
pci0: <old, non-VGA display device> at device 3.0 (no driver attached)
dc0: <Davicom DM9102A 10/100BaseTX> port 0x10000-0x100ff at device 12.0 
on pci0
dc0: Ethernet address: 00:00:00:00:00:00
miibus0: <MII bus> on dc0
ukphy0: <Generic IEEE 802.3u media interface> on miibus0
ukphy0:  10baseT, 10baseT-FDX, 100baseTX, 100baseTX-FDX, auto
dc1: <Davicom DM9102A 10/100BaseTX> port 0x10100-0x101ff mem 
0x2000-0x20ff at d0
dc1: Ethernet address: 00:00:00:00:00:00
miibus1: <MII bus> on dc1
ukphy1: <Generic IEEE 802.3u media interface> on miibus1
ukphy1:  10baseT, 10baseT-FDX, 100baseTX, 100baseTX-FDX, auto
pci0: <serial bus, USB> at device 10.0 (no driver attached)
atapci0: <AcerLabs Aladdin UDMA66 controller> port 
0x10220-0x1022f,0x10208-0x100
atapci0: [MPSAFE]
ata2: at 0x10200 on atapci0
ata2: [MPSAFE]
ata3: at 0x10210 on atapci0
ata3: [MPSAFE]
Timecounters tick every 10.000 msec
GEOM: create disk ad0 dp=0xfffff80000b168a0
ad0: 38166MB <ST340016A> [77545/16/63] at ata3-master UDMA66
acd0: CDRW <CD-224E> at ata3-slave PIO4
Mounting root from ufs:/dev/ad0a
warning: no time-of-day clock registered, system time will not be set 
accurately
dc0: failed to force tx and rx to idle state
dc0: failed to force tx and rx to idle state
dc0: failed to force tx and rx to idle state
dc0: failed to force tx and rx to idle state
dc0: failed to force tx and rx to idle state
dc0: failed to force tx and rx to idle state


-Phil