I had to go back to 2.6.26 since this bug makes any networking unusable on this machine. I saw a bugreport on kernel.org, on which people had the same problems, but they were all running ipsec/vpn so i don't know if its the same problem as i don't run any special networking software just enduser applications (http://bugzilla.kernel.org/show_bug.cgi?id=10996)