The link to the article.... "When Segmentation offload is on and SACK mechanism is also enabled, due to packet loss and selective retransmission of some packet

The link to the article.... "When Segmentation offload is on and SACK mechanism is also enabled, due to packet loss and selective retransmission of some packets, SKB could end up holding multiple packets, counted by ‘tcp_gso_segs’." Segmentation offload in linux is dependent on checksum offloads per here: https://www.kernel.org/doc/Documentation/networking/segmentation-offloads.txt https://www.kernel.org/doc/Documentation/networking/segmenta...