On Thu, 2016-04-07 at 03:21 -0700, Eric Dumazet wrote: > Please do not send patches before really understanding the issue you > have. > > Having a backlog of 12506206 bytes is ridiculous. Dropping packets is > absolutely fine if this ever happens. > > Something is really wrong on your host, or the sender simply does not > comply with TCP protocol (not caring of receiver window at all) > > Since you added a trace of truesize, please also trace skb->len >
BTW, have you played with /proc/sys/net/ipv4/tcp_adv_win_scale ?