On 31/10/2007, at 6:16 AM, Jack Vogel wrote:

> This morning I had an idea about what the source of the watchdog
> problem is. Also, we have repro'd at least one type of watchdog
> inhouse.
> One question, is this problem only happening for those running
> STABLE with the 6.6.6 merged driver?
> We found the problem does not seem to happen on 7.0.

Sorry to burst your bubble, but it just happened to me on a 7.0-BETA1
machine running 6.5.3. This machine (Supermicro P4SC8 board) had been
running without problems for almost a year previously.

It's still happening often on a 6.2-STABLE machine (as previously

Was doing around 40Mbit/sec of Rsync traffic at the time. Again, em0
shares an interrupt (this time with atapci, not uhci)


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FreeBSD 7.0-BETA1 #0: Mon Oct 29 23:34:49 NZDT 2007
Timecounter "i8254" frequency 1193182 Hz quality 0
CPU: Intel(R) Pentium(R) 4 CPU 3.20GHz (3194.56-MHz 686-class CPU)
Origin = "GenuineIntel" Id = 0xf41 Stepping = 1

real memory = 1072562176 (1022 MB)
avail memory = 1035980800 (987 MB)
ioapic0 irqs 0-23 on motherboard
ioapic1 irqs 24-47 on motherboard
kbd1 at kbdmux0
ath_hal: (AR5210, AR5211, AR5212, RF5111, RF5112, RF2413,
acpi0: on motherboard
acpi0: [ITHREAD]
acpi0: Power Button (fixed)
acpi0: reservation of 0, a0000 (3) failed
acpi0: reservation of 100000, 3fde0000 (3) failed
Timecounter "ACPI-fast" frequency 3579545 Hz quality 1000
acpi_timer0: <24-bit timer at 3.579545MHz> port 0x408-0x40b on acpi0
cpu0: on acpi0
p4tcc0: on cpu0
acpi_button0: on acpi0
pcib0: port 0xcf8-0xcff on acpi0
pci0: on pcib0
pcib1: at device 3.0 on pci0
pci1: on pcib1
em0: port
0xc000-0xc01f mem 0xf2100000-0xf211ffff irq 18 at device 1.0 on pci1
em0: Ethernet address: 00:30:48:81:e1:9e
em0: [FILTER]
pcib2: at device 28.0 on pci0
pci2: on pcib2
pcib3: at device 1.0 on pci2
pci3: on pcib3
> mem 0xf2010000-0xf2010fff irq 26 at device 14.0 on pci3
ARECA RAID ADAPTER0: Driver Version 2007-2-05
arcmsr0: [ITHREAD]
uhci0: port 0xe100-0xe11f irq 16 at
device 29.0 on pci0
uhci0: [ITHREAD]
usb0: on uhci0
usb0: USB revision 1.0
uhub0: on usb0
uhub0: 2 ports with 2 removable, self powered
uhci1: port 0xe000-0xe01f irq 19 at
device 29.1 on pci0
uhci1: [ITHREAD]
usb1: on uhci1
usb1: USB revision 1.0
uhub1: on usb1
uhub1: 2 ports with 2 removable, self powered
pci0: at device 29.4 (no driver attached)
ehci0: mem 0xf2200000-0xf22003ff
irq 23 at device 29.7 on pci0
ehci0: [ITHREAD]
usb2: EHCI version 1.0
usb2: companion controllers, 2 ports each: usb0 usb1
usb2: on ehci0
usb2: USB revision 2.0
uhub2: on usb2
uhub2: 4 ports with 4 removable, self powered
pcib4: at device 30.0 on pci0
pci4: on pcib4
vgapci0: port 0xd000-0xd0ff mem
0xf0000000-0xf0ffffff,0xf1040000-0xf1040fff irq 16 at device 9.0 on pci4
em1: port
0xd100-0xd13f mem 0xf1000000-0xf101ffff irq 19 at device 10.0 on pci4
em1: Ethernet address: 00:30:48:81:e1:9f
em1: [FILTER]
isab0: at device 31.0 on pci0
isa0: on isab0
atapci0: port
0x1f0-0x1f7,0x3f6,0x170-0x177,0x376,0xf000-0xf00f at device 31.1 on pci0
ata0: on atapci0
ata0: [ITHREAD]
ata1: on atapci0
ata1: [ITHREAD]
atapci1: port
irq 18 at device 31.2 on pci0
atapci1: [ITHREAD]
ata2: on atapci1
ata2: [ITHREAD]
ata3: on atapci1
ata3: [ITHREAD]
pci0: at device 31.3 (no driver attached)
acpi_tz0: on acpi0
fdc0: port 0x3f0-0x3f5,0x3f7 irq 6 drq 2 on
fdc0: [FILTER]
sio0: <16550A-compatible COM port> port 0x3f8-0x3ff irq 4 flags 0x10
on acpi0
sio0: type 16550A
sio0: [FILTER]
sio1: <16550A-compatible COM port> port 0x2f8-0x2ff irq 3 on acpi0
sio1: type 16550A
sio1: [FILTER]
atkbdc0: port 0x60,0x64 irq 1 on acpi0
atkbd0: irq 1 on atkbdc0
kbd0 at atkbd0
atkbd0: [GIANT-LOCKED]
atkbd0: [ITHREAD]
pmtimer0 on isa0
orm0: at iomem 0xc0000-0xc7fff pnpid ORM0000 on isa0
ppc0: at port 0x378-0x37f irq 7 on isa0
ppc0: Generic chipset (NIBBLE-only) in COMPATIBLE mode
ppbus0: on ppc0
ppi0: on ppbus0
plip0: on ppbus0
lpt0: on ppbus0
lpt0: Interrupt-driven port
ppc0: [ITHREAD]
sc0: at flags 0x100 on isa0
sc0: VGA <16 virtual consoles, flags=0x300>
vga0: at port 0x3c0-0x3df iomem 0xa0000-0xbffff on
Timecounter "TSC" frequency 3194562256 Hz quality 800
Timecounters tick every 1.000 msec
Waiting 5 seconds for SCSI devices to settle
acd0: CDROM at ata0-master UDMA33
da0 at arcmsr0 bus 0 target 0 lun 0
da0: Fixed Direct Access SCSI-3 device
da0: 166.666MB/s transfers (83.333MHz, offset 32, 16bit)
da0: 76293MB (156249600 512 byte sectors: 255H 63S/T 9726C)
da1 at arcmsr0 bus 0 target 0 lun 1
da1: Fixed Direct Access SCSI-3 device
da1: 166.666MB/s transfers (83.333MHz, offset 32, 16bit)
da1: 2784728MB (5703123456 512 byte sectors: 255H 63S/T 355003C)
GEOM_JOURNAL: Journal 490099366: da1p1 contains data.
GEOM_JOURNAL: Journal 490099366: da1p1 contains journal.
Trying to mount root from ufs:/dev/da0s1a
WARNING: / was not properly dismounted
GEOM_JOURNAL: Journal da1p1 consistent.
WARNING: /tmp was not properly dismounted
WARNING: /usr was not properly dismounted
WARNING: /var was not properly dismounted
arplookup failed: host is not on local network
ichsmb0: port 0x500-0x51f irq
17 at device 31.3 on pci0
ichsmb0: [GIANT-LOCKED]
ichsmb0: [ITHREAD]
smbus0: on ichsmb0
smb0: on smbus0
em0: watchdog timeout -- resetting
em0: link state changed to DOWN
em0: link state changed to UP

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