The port security/tor was recently updated to 0.1.0.10. The new 0.1.x series use libevent. FreeBSD ports have libevent-1.1 libevent-1.1 has a bug on FreeBSD when using kqueue (default). This has been worked around in libevent-1.1a... Fix: Upgrade libevent to 1.1a How-To-Repeat: Run a tor server (the bug is not triggered when running as a client).
Responsible Changed From-To: freebsd-ports-bugs->petef Over to libevent maintainer
State Changed From-To: open->closed Fixed, thanks.