Hi, thank you very much for the time spend! Before starting to hack I swapped all cards in the machine, and now it works. I think this was a "simple" interrupt conflict, but I was blinded by the change to the SMP kernel, so I was convinced that there is something bigger lurking in the dark... --Orm - : send the line "unsubscribe linux-net" in the body of a message to majordomo@vger.rutgers.edu