Query: python systemd crash core dump gunicorn

Relevant code:
def post_worker_init(worker):
    """Hook into Gunicorn to display message after launching.

    This mimics the behaviour of Django's stock runserver command.
    """
    quit_command = 'CTRL-BREAK' if sys.platform == 'win32' else 'CONTROL-C'
    sys.stdout.write(
        "Django version {djangover}, Gunicorn version {gunicornver}, "
        "using settings {settings!r}\n"
        "Starting development server at {urls}\n"
        "Quit the server with {quit_command}.\n".format(
            djangover=django.get_version(),
            gunicornver=gunicorn.__version__,
            settings=os.environ.get('DJANGO_SETTINGS_MODULE'),
            urls=', '.join('http://{0}/'.format(b) for b in worker.cfg.bind),
            quit_command=quit_command,
        ),
    )

Similar but not relevant code:
def start(args):
    """Run server with provided command line arguments.
    """
    application = tornado.web.Application([(r"/run", run.get_handler(args)),
                                           (r"/status", run.StatusHandler)])
    application.runmonitor = RunMonitor()
    application.listen(args.port)
    tornado.ioloop.IOLoop.instance().start()

Similar but not relevant code:
def restart(self, reset=False):
        """
        Quit and Restart Spyder application.

        If reset True it allows to reset spyder on restart.
        """
        # Get start path to use in restart script
        spyder_start_directory = get_module_path('spyder')
        restart_script = osp.join(spyder_start_directory, 'app', 'restart.py')

        # Get any initial argument passed when spyder was started
        # Note: Variables defined in bootstrap.py and spyder/app/start.py
        env = os.environ.copy()
        bootstrap_args = env.pop('SPYDER_BOOTSTRAP_ARGS', None)
        spyder_args = env.pop('SPYDER_ARGS')

        # Get current process and python running spyder
        pid = os.getpid()
        python = sys.executable

        # Check if started with bootstrap.py
        if bootstrap_args is not None:
            spyder_args = bootstrap_args
            is_bootstrap = True
        else:
            is_bootstrap = False

        # Pass variables as environment variables (str) to restarter subprocess
        env['SPYDER_ARGS'] = spyder_args
        env['SPYDER_PID'] = str(pid)
        env['SPYDER_IS_BOOTSTRAP'] = str(is_bootstrap)
        env['SPYDER_RESET'] = str(reset)

        if DEV:
            if os.name == 'nt':
                env['PYTHONPATH'] = ';'.join(sys.path)
            else:
                env['PYTHONPATH'] = ':'.join(sys.path)

        # Build the command and popen arguments depending on the OS
        if os.name == 'nt':
            # Hide flashing command prompt
            startupinfo = subprocess.STARTUPINFO()
            startupinfo.dwFlags |= subprocess.STARTF_USESHOWWINDOW
            shell = False
        else:
            startupinfo = None
            shell = True

        command = '"{0}" "{1}"'
        command = command.format(python, restart_script)

        try:
            if self.closing(True):
                subprocess.Popen(command, shell=shell, env=env,
                                 startupinfo=startupinfo)
                self.console.quit()
        except Exception as error:
            # If there is an error with subprocess, Spyder should not quit and
            # the error can be inspected in the internal console
            print(error)  # spyder: test-skip
            print(command)

Similar but not relevant code:
def go_to_background():
    """ Daemonize the running process. """
    try:
        if os.fork():
            sys.exit()
    except OSError as errmsg:
        LOGGER.error('Fork failed: {0}'.format(errmsg))
        sys.exit('Fork failed')

Similar but not relevant code:
def _run_parallel_process_with_profiling(self, start_path, stop_path, queue, filename):
        """
        wrapper for usage of profiling
        """
        runctx('Engine._run_parallel_process(self,  start_path, stop_path, queue)', globals(), locals(), filename)

Similar but not relevant code:
def execute_in_background(self):
        """Executes a (shell) command in the background

        :return: the process' pid
        """
        # http://stackoverflow.com/questions/1605520
        args = shlex.split(self.cmd)
        p = Popen(args)
        return p.pid