Diagnose watchdog timeout problem

[Ernie Luzar]

Been getting these error messages since about release 10.0 I think.
Have changed to new hardware box and new cable modem and still having 
the same error messages. Also occurs when I use em0 interface instead of 
vge0. From where i sit this looks like a kernel problem.

Looking for guidance on how to diagnose this problem further.


vge0: flags=8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST>
         metric 0 mtu 1500
	options=389b<RXCSUM,TXCSUM,VLAN_MTU,VLAN_HWTAGGING,VLAN_HWCSUM,
         WOL_UCAST,WOL_MCAST,WOL_MAGIC>
	ether 00:0b:db:19:33:18
	hwaddr 10:00:60:21:00:93
	inet xxx.xxx.xxx.xxx netmask 0xfffff000
         broadcast 255.255.255.255
	nd6 options=29<PERFORMNUD,IFDISABLED,AUTO_LINKLOCAL>
	media: Ethernet autoselect (1000baseT <full-duplex,master>)
	status: active



Oct 30 23:43:38 fbsd kernel: vge0: watchdog timeout
Oct 30 23:43:38 fbsd kernel: vge0: link state changed to DOWN
Oct 30 23:43:42 fbsd kernel: vge0: link state changed to UP
Oct 30 23:58:39 fbsd kernel: vge0: watchdog timeout
Oct 30 23:58:39 fbsd kernel: vge0: link state changed to DOWN
Oct 30 23:58:43 fbsd kernel: vge0: link state changed to UP
Oct 31 01:08:38 fbsd kernel: vge0: watchdog timeout
Oct 31 01:08:38 fbsd kernel: vge0: link state changed to DOWN
Oct 31 01:08:42 fbsd kernel: vge0: link state changed to UP
Oct 31 01:53:39 fbsd kernel: vge0: watchdog timeout
Oct 31 01:53:39 fbsd kernel: vge0: link state changed to DOWN
Oct 31 01:53:43 fbsd kernel: vge0: link state changed to UP
Oct 31 04:58:46 fbsd kernel: vge0: watchdog timeout
Oct 31 04:58:46 fbsd kernel: vge0: link state changed to DOWN
Oct 31 04:58:50 fbsd kernel: vge0: link state changed to UP
Oct 31 05:23:49 fbsd kernel: vge0: watchdog timeout
Oct 31 05:23:49 fbsd kernel: vge0: link state changed to DOWN
Oct 31 05:23:52 fbsd kernel: vge0: link state changed to UP
Oct 31 05:57:40 fbsd kernel: vge0: watchdog timeout
Oct 31 05:57:40 fbsd kernel: vge0: link state changed to DOWN
Oct 31 05:57:43 fbsd kernel: vge0: link state changed to UP
Oct 31 09:21:43 fbsd kernel: vge0: watchdog timeout
Oct 31 09:21:43 fbsd kernel: vge0: link state changed to DOWN
Oct 31 09:21:47 fbsd kernel: vge0: link state changed to UP
Oct 31 09:28:21 fbsd kernel: vge0: watchdog timeout
Oct 31 09:28:21 fbsd kernel: vge0: link state changed to DOWN
Oct 31 09:28:25 fbsd kernel: vge0: link state changed to UP