Added handler for uncaught exceptions to make sure those get logged

src/octoprint/server/__init__.py

@@ -216,6 +216,8 @@ class Server():
 		from tornado.ioloop import IOLoop
 		from tornado.web import Application
 
+		import sys
+
 		debug = self._debug
 
 		# first initialize the settings singleton and make sure it uses given configfile and basedir if available
@@ -224,6 +226,9 @@ class Server():
 		# then initialize logging
 		self._initLogging(self._debug, self._logConf)
 		logger = logging.getLogger(__name__)
+		def exception_logger(exc_type, exc_value, exc_tb):
+			logger.error("Uncaught exception", exc_info=(exc_type, exc_value, exc_tb))
+		sys.excepthook = exception_logger
 		logger.info("Starting OctoPrint %s" % DISPLAY_VERSION)
 
 		# then initialize the plugin manager