[root@server /usr/src]$ dmesg | grep failure -A 1
[ 3839.116913] eth0: hw csum failure.
[ 3839.116919] Pid: 0, comm: kworker/0:0 Not tainted 3.1.0-2-howes #1
--
[ 3839.617943] eth0: hw csum failure.
[ 3839.617949] Pid: 0, comm: kworker/0:0 Not tainted 3.1.0-2-howes #1
--
[ 4475.790956] eth0: hw csum failure.
[ 4475.790962] Pid: 0, comm: kworker/0:0 Not tainted 3.1.0-2-howes #1
--