I've started to see my Exit node restart itself. There is a warning in the log pointing to a problem with OpenSSL but I don't know how to proceed.
Jun 21 03:07:03.000 [notice] Tor 0.2.9.10 (git-1f6c8eda0073f464) opening new log file. Jun 21 03:07:03.619 [warn] OpenSSL version from headers does not match the version we're running with. If you get weird crashes, that might be why. (Compiled with 1000105f: OpenSSL 1.0.1e 11 Feb 2013; running with 1000105f: OpenSSL 1.0.1e-fips 11 Feb 2013). Jun 21 03:07:03.647 [notice] Tor 0.2.9.10 (git-1f6c8eda0073f464) running on Linux with Libevent 2.0.21-stable, OpenSSL 1.0.1e- ips and Zlib 1.2.7. Jun 21 03:07:03.647 [notice] Tor can't help you if you use it wrong! Learn how to be safe at https://www.torproject.org/download/download#warning Jun 21 03:07:03.647 [notice] Read configuration file "/usr/share/tor/defaults-torrc". Jun 21 03:07:03.647 [notice] Read configuration file "/etc/tor/torrc". Jun 21 03:07:03.650 [notice] Based on detected system memory, MaxMemInQueues is set to 1464 MB. You can override this by setting MaxMemInQueues by hand. Jun 21 03:07:03.650 [warn] Tor is running as an exit relay. If you did not want this behavior, please set the ExitRelay option to 0. If you do want to run an exit Relay, please set the ExitRelay option to 1 to disable this warning, and for forward compatibility. Jun 21 03:07:03.650 [notice] Opening Socks listener on 127.0.0.1:9050 Jun 21 03:07:03.650 [notice] Opening Control listener on 127.0.0.1:9051 Jun 21 03:07:03.650 [notice] Opening OR listener on 0.0.0.0:8081 Jun 21 03:07:03.651 [notice] Opening Directory listener on 0.0.0.0:8080 Jun 21 03:07:03.000 [notice] Not disabling debugger attaching for unprivileged users. Jun 21 03:07:03.000 [notice] Parsing GEOIP IPv4 file /usr/share/tor/geoip. Jun 21 03:07:03.000 [notice] Parsing GEOIP IPv6 file /usr/share/tor/geoip6. Jun 21 03:07:03.000 [notice] Configured to measure statistics. Look for the *-stats files that will first be written to the data directory in 24 hours from now. Jun 21 03:07:03.000 [warn] Fixing permissions on directory /var/lib/tor Jun 21 03:07:03.000 [notice] We were built to run on a 64-bit CPU, with OpenSSL 1.0.1 or later, but with a version of OpenSSL that apparently lacks accelerated support for the NIST P-224 and P-256 groups. Building openssl with such support (using the enable-ec_nistp_64_gcc_128 option when configuring it) would make ECD H much faster.