kern/122928: [em] interface watchdog timeouts and stops receiving packets

[Neil Hoggarth]

On Sun, 20 Apr 2008, vwe at FreeBSD.org wrote:

> Neil: Please additionally provide output of `ifconfig em0' and `sysctl hw.em'

The output of "ifconfig em0" looks like this:

em0: flags=8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> metric 0 mtu 1500
 	options=9b<RXCSUM,TXCSUM,VLAN_MTU,VLAN_HWTAGGING,VLAN_HWCSUM>
 	ether 00:0e:0c:06:c2:3a
 	inet 10.0.0.7 netmask 0xff000000 broadcast 10.255.255.255
 	media: Ethernet autoselect (1000baseTX <full-duplex>)
 	status: active


"sysctl hw.em" gives an "unknown oid" error. "sysctl dev.em" gives:

dev.em.0.%desc: Intel(R) PRO/1000 Network Connection Version - 6.7.3
dev.em.0.%driver: em
dev.em.0.%location: slot=9 function=0
dev.em.0.%pnpinfo: vendor=0x8086 device=0x100e subvendor=0x8086 subdevice=0x002e class=0x020000
dev.em.0.%parent: pci2
dev.em.0.debug: -1
dev.em.0.stats: -1
dev.em.0.rx_int_delay: 0
dev.em.0.tx_int_delay: 66
dev.em.0.rx_abs_int_delay: 66
dev.em.0.tx_abs_int_delay: 66
dev.em.0.rx_processing_limit: 100