Subject: Re: TCP always advertises zero window.

From: Andi Kleen <[email-masked]>
Date: Mon, 25 Oct 2010 20:18:14 +0200

Li Yu <[email-masked]> writes:
>
> 	According to source code, only MTU probing success and receive some non-zero length of L7 payload could grow tcp_sock->rcv_ssthresh. Because of we turn off MTU probing and TCP only received some zero-window probe from another end, so it seem that we have not any chance to update tcp_sock->rcv_ssthresh at all, so a dead loop come here.

The question is why are you turning off MTU probing?

-Andi