irq storm detected on internal NIC since 7.0 upgrade

[Casey Scott]

The servers internal NIC is a Intel 1000 Gigabit card, using the em0 driver. I never 
had an issue with it w/ the 5.x or 6x series or freebsd, so I suspect a buggy 
driver in 7.0 

/var/log/messages contains spams of these messages:
kernel: interrupt storm detected on "irq19:"; throttling interrupt source

Anyone else experiencing this issue?


Casey