Ryota Ozaki wrote: > Hi, > > Are there any users of TCP Vestigial Time-Wait (VTW)? > The feature is disabled by default and we need to explicitly > enable via sysctl to use it. > > I just want to know if we should still maintain it.
I wouldn't be unhappy if it just disappeared. It's totally undocumented, and will also cause a panic on archs with larger cache line size because it does some really funky incorrect math that I stared at for a while then gave up on. erlite# sysctl -w net.inet.tcp.vtw.enable=1 15293.7939168] panic: kernel diagnostic assertion "n <= FATP_MAX / 2" failed: file "../../../../netinet/tcp_vtw.c", line 218 Cheers, Simon.
