``` Tor 0.3.3.7 (git-035a35178c92da94) running on SunOS with Libevent 2.1.8-stable, OpenSSL 1.0.2o, Zlib 1.2.11, Liblzma N/A, and Libzstd N/A. ``` (this error was also observed under tor 0.3.3.6 for about two weeks, no change with updating to 0.3.3.7) every 10-20 minutes (sometimes longer) the process crashes with: ``` [err] Error from libevent: evport.c:425: Assertion evpd->ed_pending[i] == fd failed in evport_del ``` Contrary to tor crashes no libevent stacktrace is provided in default output. The OS-Project under which the Service is running should have sufficent fd-ulimits: ``` ulimit -n 65536 ``` Service privileges for the running User are pretty standard: ``` privileges='basic,net_privaddr' ``` **Trac**: **Username**: ruebezahl