Please do not top post on netdev mailing list On Fri, Jun 24, 2016 at 4:38 AM, Arjun V. <ar...@chelsio.com> wrote: > Eric, > We are seeing skb's with length(skb->len) greater than 65536 coming into our > ndo_start_xmit() callback routine. > We can add a check in our eth_xmit() routine to skip those packets, but it > will be better if you fix this in kernel. > > > I have attached pcap file obtained from tcpdump. In the pcap file there are 2 > such packets(I used tcpdump filter to extract out those packets). > > Let us know if you need anything else. >
Beats me really. At retransmit time, we only can eventually reduce packet sizes (assuming GSO is used, because we might coalesce sub-mss packets in tcp_retrans_try_collapse()) So why are you seeing too big packets at retransmit, I really have no idea. MIght be some bug related to MSS computation, overflowing somehow ?
