Re: How to compile tcp fast open client app with kernel tfo client support ?

Hi Vincent,

Note that MSG_FASTOPEN flag should be used only once. Subsequent
sendto(MSG_FASTOPEN) == connect() on connected sockets. You can verify
if the fast open is successful by checking a bit in TCP_INFO.
http://patchwork.o zlabs.org/patch/192883/ if you are running a fresh
netdev build.

I'll submit a patch to update the man page on MSG_FASTOPEN too.

Yuchung

I have tried to run fresh build net-next, for some reason the build
stops ssh service from starting up, tried 3.7.0-rc4 too, same issue. I
don't know if it is new kernel bug or ubuntu upstart bug, but that is
another issue.

I will study the tcp fast open more, thanks.

Vincent