Bug report

Hi, I have compiled natively ros2 crystal on a raspberry pi 3b and seems that there is a bug somewhere, when I try to launch a demo talker I get a bus error, seems something related with some Alignment trap. I open this issue in rcl repo because the exception is raised when rcl_get_zero_initialized_context is called.

Required Info:

• Operating System:
  • 2018-11-13-raspbian-stretch-full
• Installation type:
  • from sources, native build
• Version or commit hash:
  • 657d9e8
• DDS implementation:
  • Fast-RTPS
• Client library (if applicable):
  • rcl

Steps to reproduce issue

colcon build --symlink-install --packages-ignore qt_gui_cpp rqt_gui_cpp --packages-up-to demo_nodes_cpp --executor sequential --cmake-args " -DBUILD_TESTING=OFF" --event-handlers console_direct+
# source ros2 install
./build/demo_nodes_cpp/talker

Expected behavior

demo_nodes_cpp talker should be launch

Actual behavior

An exception is raised: "Bus error"
gdb output:

gdb ./build/demo_nodes_cpp/talker
r
Program received signal SIGBUS, Bus error.
0x76edb80c in rcl_get_zero_initialized_context () from /home/pi/ros2_ws/install/rcl/lib/librcl.so

journalctl will output the next:

dic 19 17:57:53 raspberrypi kernel: Alignment trap: not handling instruction e1b20f9f at [<ffff0f70>]
dic 19 17:57:53 raspberrypi kernel: Unhandled fault: alignment exception (0x001) at 0x7691f83c
dic 19 17:57:53 raspberrypi kernel: pgd = b9314000