I reported similar behaviour in Bug #87320. I have a Gigabyte GA-965P-DS3 motherboard with a gigabit network interface - using the sky2 driver.
-- BUG: soft lockup detected on CPU#0! https://launchpad.net/bugs/83009 -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
