Hello, I have an intermittent problem on one of my firewalls. It has worked well for years with different openbsd-releases but a few days after installing a snapshot a few months ago it sometimes just stops taking traffic on the internal nic. And all you get at the console is "watchdog timeout on re1". I have upgraded the snapshot and have swapped to another re-nic, but to no avail. I can see in the archives that there has been some similar issues with the re-driver in the past but nothing to say what to actually do to fix it.
$ ifconfig lo0: flags=8049<UP,LOOPBACK,RUNNING,MULTICAST> mtu 33200 priority: 0 groups: lo inet 127.0.0.1 netmask 0xff000000 inet6 ::1 prefixlen 128 inet6 fe80::1%lo0 prefixlen 64 scopeid 0x5 re0: flags=8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> mtu 1500 lladdr 00:17:3f:99:ff:20 description: notinuse priority: 0 media: Ethernet autoselect (none) status: no carrier inet 8.13.17.226 netmask 0xfffffff0 broadcast 8.13.17.239 inet6 fe80::217:3fff:fe99:ff20%re0 prefixlen 64 scopeid 0x1 re1: flags=8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> mtu 1500 lladdr 00:17:3f:9b:cf:d5 priority: 0 media: Ethernet autoselect (1000baseT full-duplex,master,rxpause,txpause) status: active inet 192.168.16.252 netmask 0xffffff00 broadcast 255.255.255.0 inet6 fe80::217:3fff:fe9b:cfd5%re1 prefixlen 64 scopeid 0x2 re2: flags=8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> mtu 1500 lladdr 00:17:3f:9b:d3:e3 description: external priority: 0 groups: egress media: Ethernet autoselect (100baseTX full-duplex,rxpause,txpause) status: active inet 8.14.18.134 netmask 0xfffffffc broadcast 8.14.18.135 inet6 fe80::217:3fff:fe9b:d3e3%re2 prefixlen 64 scopeid 0x3 enc0: flags=41<UP,RUNNING> mtu 1536 priority: 0 tun0: flags=11<UP,POINTOPOINT> mtu 1500 priority: 0 groups: tun media: Ethernet autoselect status: no carrier pflog0: flags=141<UP,RUNNING,PROMISC> mtu 33200 priority: 0 groups: pflog $ dmesg OpenBSD 4.6-current (GENERIC) #442: Sun Nov 29 23:02:05 MST 2009 dera...@i386.openbsd.org:/usr/src/sys/arch/i386/compile/GENERIC cpu0: Intel Pentium III ("GenuineIntel" 686-class) 931 MHz cpu0: FPU,V86,DE,PSE,TSC,MSR,PAE,MCE,CX8,SEP,MTRR,PGE,MCA,CMOV,PAT,PSE36,MMX,FXSR,S SE real mem = 267743232 (255MB) avail mem = 250806272 (239MB) mainbus0 at root bios0 at mainbus0: AT/286+ BIOS, date 11/28/00, BIOS32 rev. 0 @ 0xfda74, SMBIOS rev. 2.3 @ 0xf0ea0 (49 entries) bios0: vendor Intel Corp. version "A06" date 11/28/2000 bios0: Dell Computer Corporation XPS-Z apm0 at bios0: Power Management spec V1.2 apm0: AC on, battery charge unknown acpi at bios0 function 0x0 not configured pcibios0 at bios0: rev 2.1 @ 0xf0000/0x10000 pcibios0: PCI IRQ Routing Table rev 1.0 @ 0xf2c40/224 (12 entries) pcibios0: PCI Interrupt Router at 000:31:0 ("Intel 82371FB ISA" rev 0x00) pcibios0: PCI bus #2 is the last bus bios0: ROM list: 0xc0000/0x9400 cpu0 at mainbus0: (uniprocessor) pci0 at mainbus0 bus 0: configuration mode 1 (bios) pchb0 at pci0 dev 0 function 0 "Intel 82815 Host" rev 0x02 intelagp0 at pchb0 agp0 at intelagp0: aperture at 0xf8000000, size 0x2400000 ppb0 at pci0 dev 1 function 0 "Intel 82815 AGP" rev 0x02 pci1 at ppb0 bus 1 vga1 at pci1 dev 0 function 0 "NVIDIA Vanta" rev 0x15 wsdisplay0 at vga1 mux 1: console (80x25, vt100 emulation) wsdisplay0: screen 1-5 added (80x25, vt100 emulation) ppb1 at pci0 dev 30 function 0 "Intel 82801BA Hub-to-PCI" rev 0x02 pci2 at ppb1 bus 2 re0 at pci2 dev 10 function 0 "Realtek 8169" rev 0x10: RTL8110S (0x0400), irq 3, address 00:17:3f:99:ff:20 rgephy0 at re0 phy 7: RTL8169S/8110S PHY, rev. 0 re1 at pci2 dev 11 function 0 "Realtek 8169" rev 0x10: RTL8110S (0x0400), irq 11, address 00:17:3f:9b:cf:d5 rgephy1 at re1 phy 7: RTL8169S/8110S PHY, rev. 0 re2 at pci2 dev 12 function 0 "Realtek 8169" rev 0x10: RTL8110S (0x0400), irq 9, address 00:17:3f:9b:d3:e3 rgephy2 at re2 phy 7: RTL8169S/8110S PHY, rev. 0 ichpcib0 at pci0 dev 31 function 0 "Intel 82801BA LPC" rev 0x02: 24-bit timer at 3579545Hz pciide0 at pci0 dev 31 function 1 "Intel 82801BA IDE" rev 0x02: DMA, channel 0 wired to compatibility, channel 1 wired to compatibility wd0 at pciide0 channel 0 drive 0: <QUANTUM FIREBALLlct20 20> wd0: 8-sector PIO, LBA, 19470MB, 39876480 sectors wd0(pciide0:0:0): using PIO mode 4, Ultra-DMA mode 5 atapiscsi0 at pciide0 channel 1 drive 0 scsibus0 at atapiscsi0: 2 targets cd0 at scsibus0 targ 0 lun 0: <LG, CD-ROM CRD-8482B, 1.05> ATAPI 5/cdrom removable atapiscsi1 at pciide0 channel 1 drive 1 scsibus1 at atapiscsi1: 2 targets sd0 at scsibus1 targ 0 lun 0: <IOMEGA, ZIP 100, 14.A> ATAPI 0/direct removable sd0: drive offline cd0(pciide0:1:0): using PIO mode 4, Ultra-DMA mode 2 sd0(pciide0:1:1): using PIO mode 0 uhci0 at pci0 dev 31 function 2 "Intel 82801BA USB" rev 0x02: irq 10 ichiic0 at pci0 dev 31 function 3 "Intel 82801BA SMBus" rev 0x02: irq 9 iic0 at ichiic0 spdmem0 at iic0 addr 0x51: 128MB SDRAM non-parity PC133CL2 spdmem1 at iic0 addr 0x52: 128MB SDRAM non-parity PC133CL2 isa0 at ichpcib0 isadma0 at isa0 com0 at isa0 port 0x3f8/8 irq 4: ns16550a, 16 byte fifo pckbc0 at isa0 port 0x60/5 pcppi0 at isa0 port 0x61 midi0 at pcppi0: <PC speaker> spkr0 at pcppi0 lpt0 at isa0 port 0x378/4 irq 7 npx0 at isa0 port 0xf0/16: reported by CPUID; using exception 16 fdc0 at isa0 port 0x3f0/6 irq 6 drq 2 fd0 at fdc0 drive 0: 1.44MB 80 cyl, 2 head, 18 sec usb0 at uhci0: USB revision 1.0 uhub0 at usb0 "Intel UHCI root hub" rev 1.00/1.00 addr 1 biomask f767 netmask ff6f ttymask ffff mtrr: Pentium Pro MTRR support uhidev0 at uhub0 port 1 configuration 1 interface 0 "Dell Dell USB Keyboard" rev 1.10/3.06 addr 2 uhidev0: iclass 3/1 ukbd0 at uhidev0: 8 modifier keys, 6 key codes wskbd0 at ukbd0: console keyboard, using wsdisplay0 vscsi0 at root scsibus2 at vscsi0: 256 targets softraid0 at root sd0(atapiscsi1:0:0): Check Condition (error 0x70) on opcode 0x1b SENSE KEY: Not Ready ASC/ASCQ: Medium Not Present root on wd0a swap on wd0b dump on wd0b re1: watchdog timeout re1: watchdog timeout re1: watchdog timeout re1: watchdog timeout re1: watchdog timeout re1: watchdog timeout re1: watchdog timeout re1: watchdog timeout re1: watchdog timeout re1: watchdog timeout re1: watchdog timeout re1: watchdog timeout re1: watchdog timeout re1: watchdog timeout re1: watchdog timeout re1: watchdog timeout re1: watchdog timeout re1: watchdog timeout re1: watchdog timeout re1: watchdog timeout re1: watchdog timeout re1: watchdog timeout re1: watchdog timeout re1: watchdog timeout syncing disks... done rebooting... OpenBSD 4.6-current (GENERIC) #442: Sun Nov 29 23:02:05 MST 2009 dera...@i386.openbsd.org:/usr/src/sys/arch/i386/compile/GENERIC cpu0: Intel Pentium III ("GenuineIntel" 686-class) 931 MHz cpu0: FPU,V86,DE,PSE,TSC,MSR,PAE,MCE,CX8,SEP,MTRR,PGE,MCA,CMOV,PAT,PSE36,MMX,FXSR,S SE real mem = 267743232 (255MB) avail mem = 250806272 (239MB) mainbus0 at root bios0 at mainbus0: AT/286+ BIOS, date 11/28/00, BIOS32 rev. 0 @ 0xfda74, SMBIOS rev. 2.3 @ 0xf0ea0 (49 entries) bios0: vendor Intel Corp. version "A06" date 11/28/2000 bios0: Dell Computer Corporation XPS-Z apm0 at bios0: Power Management spec V1.2 apm0: AC on, battery charge unknown acpi at bios0 function 0x0 not configured pcibios0 at bios0: rev 2.1 @ 0xf0000/0x10000 pcibios0: PCI IRQ Routing Table rev 1.0 @ 0xf2c40/224 (12 entries) pcibios0: PCI Interrupt Router at 000:31:0 ("Intel 82371FB ISA" rev 0x00) pcibios0: PCI bus #2 is the last bus bios0: ROM list: 0xc0000/0x9400 cpu0 at mainbus0: (uniprocessor) pci0 at mainbus0 bus 0: configuration mode 1 (bios) pchb0 at pci0 dev 0 function 0 "Intel 82815 Host" rev 0x02 intelagp0 at pchb0 agp0 at intelagp0: aperture at 0xf8000000, size 0x2400000 ppb0 at pci0 dev 1 function 0 "Intel 82815 AGP" rev 0x02 pci1 at ppb0 bus 1 vga1 at pci1 dev 0 function 0 "NVIDIA Vanta" rev 0x15 wsdisplay0 at vga1 mux 1: console (80x25, vt100 emulation) wsdisplay0: screen 1-5 added (80x25, vt100 emulation) ppb1 at pci0 dev 30 function 0 "Intel 82801BA Hub-to-PCI" rev 0x02 pci2 at ppb1 bus 2 re0 at pci2 dev 10 function 0 "Realtek 8169" rev 0x10: RTL8110S (0x0400), irq 3, address 00:17:3f:99:ff:20 rgephy0 at re0 phy 7: RTL8169S/8110S PHY, rev. 0 re1 at pci2 dev 11 function 0 "Realtek 8169" rev 0x10: RTL8110S (0x0400), irq 11, address 00:17:3f:9b:cf:d5 rgephy1 at re1 phy 7: RTL8169S/8110S PHY, rev. 0 re2 at pci2 dev 12 function 0 "Realtek 8169" rev 0x10: RTL8110S (0x0400), irq 9, address 00:17:3f:9b:d3:e3 rgephy2 at re2 phy 7: RTL8169S/8110S PHY, rev. 0 ichpcib0 at pci0 dev 31 function 0 "Intel 82801BA LPC" rev 0x02: 24-bit timer at 3579545Hz pciide0 at pci0 dev 31 function 1 "Intel 82801BA IDE" rev 0x02: DMA, channel 0 wired to compatibility, channel 1 wired to compatibility wd0 at pciide0 channel 0 drive 0: <QUANTUM FIREBALLlct20 20> wd0: 8-sector PIO, LBA, 19470MB, 39876480 sectors wd0(pciide0:0:0): using PIO mode 4, Ultra-DMA mode 5 atapiscsi0 at pciide0 channel 1 drive 0 scsibus0 at atapiscsi0: 2 targets cd0 at scsibus0 targ 0 lun 0: <LG, CD-ROM CRD-8482B, 1.05> ATAPI 5/cdrom removable atapiscsi1 at pciide0 channel 1 drive 1 scsibus1 at atapiscsi1: 2 targets sd0 at scsibus1 targ 0 lun 0: <IOMEGA, ZIP 100, 14.A> ATAPI 0/direct removable sd0: drive offline cd0(pciide0:1:0): using PIO mode 4, Ultra-DMA mode 2 sd0(pciide0:1:1): using PIO mode 0 uhci0 at pci0 dev 31 function 2 "Intel 82801BA USB" rev 0x02: irq 10 ichiic0 at pci0 dev 31 function 3 "Intel 82801BA SMBus" rev 0x02: irq 9 iic0 at ichiic0 spdmem0 at iic0 addr 0x51: 128MB SDRAM non-parity PC133CL2 spdmem1 at iic0 addr 0x52: 128MB SDRAM non-parity PC133CL2 isa0 at ichpcib0 isadma0 at isa0 com0 at isa0 port 0x3f8/8 irq 4: ns16550a, 16 byte fifo pckbc0 at isa0 port 0x60/5 pcppi0 at isa0 port 0x61 midi0 at pcppi0: <PC speaker> spkr0 at pcppi0 lpt0 at isa0 port 0x378/4 irq 7 npx0 at isa0 port 0xf0/16: reported by CPUID; using exception 16 fdc0 at isa0 port 0x3f0/6 irq 6 drq 2 fd0 at fdc0 drive 0: 1.44MB 80 cyl, 2 head, 18 sec usb0 at uhci0: USB revision 1.0 uhub0 at usb0 "Intel UHCI root hub" rev 1.00/1.00 addr 1 biomask f767 netmask ff6f ttymask ffff mtrr: Pentium Pro MTRR support uhidev0 at uhub0 port 1 configuration 1 interface 0 "Dell Dell USB Keyboard" rev 1.10/3.06 addr 2 uhidev0: iclass 3/1 ukbd0 at uhidev0: 8 modifier keys, 6 key codes wskbd0 at ukbd0: console keyboard, using wsdisplay0 vscsi0 at root scsibus2 at vscsi0: 256 targets softraid0 at root sd0(atapiscsi1:0:0): Check Condition (error 0x70) on opcode 0x1b SENSE KEY: Not Ready ASC/ASCQ: Medium Not Present root on wd0a swap on wd0b dump on wd0b re1: watchdog timeout re1: watchdog timeout re1: watchdog timeout