From 4a503758d57282adbc61e7f5b156c324bfb33e26 Mon Sep 17 00:00:00 2001 From: Michael Carroll Date: Thu, 6 Aug 2026 12:06:23 -0500 Subject: [PATCH] Disable Fast DDS shared memory transport on Windows Opening a shared memory segment left inconsistent by an abruptly terminated peer faults inside SharedMemGlobal::open_port_internal, killing the test process with an access violation. Signed-off-by: Michael Carroll --- test_launch_ros/test/conftest.py | 24 ++++++++++++++++++++++++ 1 file changed, 24 insertions(+) create mode 100644 test_launch_ros/test/conftest.py diff --git a/test_launch_ros/test/conftest.py b/test_launch_ros/test/conftest.py new file mode 100644 index 00000000..4c6718cf --- /dev/null +++ b/test_launch_ros/test/conftest.py @@ -0,0 +1,24 @@ +# Copyright 2026 Open Source Robotics Foundation, Inc. +# +# Licensed under the Apache License, Version 2.0 (the "License"); +# you may not use this file except in compliance with the License. +# You may obtain a copy of the License at +# +# http://www.apache.org/licenses/LICENSE-2.0 +# +# Unless required by applicable law or agreed to in writing, software +# distributed under the License is distributed on an "AS IS" BASIS, +# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +# See the License for the specific language governing permissions and +# limitations under the License. + +"""Test configuration for test_launch_ros.""" + +import os +import sys + +# Opening a shared memory segment left inconsistent by an abruptly terminated +# peer faults inside Fast DDS. See +# https://github.com/ros2/launch_ros/issues/539 +if sys.platform == 'win32': + os.environ.setdefault('FASTDDS_BUILTIN_TRANSPORTS', 'UDPv4')