Had problems with these error messages with arch linux, they only occur under heavy networking load. It seems to be someting related to the linux kernel ethernet driver. The one I am using is the 'Intel Corporation Ethernet Connection I217-V (rev 04)'. By disabling TSO the problem disapears. TSO stands for TCP Segmentation Offload, it is a feature built in a NIC to divide large larger data chunks into TCP segments. If TSO is disabled, the CPU performs segmentation for TCP/IP.
Reading many articles on Google I get the impression that disabling TSO is suppressing a driver bug, but anyway ... it works ... and I can not detect any degradation of networking performance.
Disabling TSO can be done as follows: ethtool -K eth0 tso off
My system is running systemd (arch linux), a service file to disable TSO during every boot:
Description=Disables tso for eno1 during startup
ExecStart=/usr/sbin/ethtool -K eno1 tso off