11.0 stuck on high network load

[Slawa Olhovchenkov]

On Thu, Oct 06, 2016 at 09:28:06AM +0200, Julien Charbon wrote:

> 2. thread1:  In tcp_close() the inp is marked with INP_DROPPED flag, the
> process continues and calls INP_WUNLOCK() here:
> 
> https://github.com/freebsd/freebsd/blob/releng/11.0/sys/netinet/tcp_subr.c#L1568

Look also to sys/netinet/tcp_timewait.c:488

And check other locks from r160549