For some reasons the udev worker taking care of eth1 is busy and stuck, but the trace doesn't help to know where exactly... Could you show the output of the following commands ? udevadm test-builtin net_setup_link /sys/class/net/eth1 udevadm test-builtin path_id /sys/class/net/eth1 udevadm test-builtin net_id /sys/class/net/eth1 udevadm info /sys/class/net/eth1 Does one of them take time ?