process has died, exit code -11 Segmentation fault

[Manit-Chan]

Once I have used this great library octomap_mapping in hector_quadrotor with Velodyne VLP16 project to show Marker array on Rviz and it work perfectly.

But when i go to another project and need to apt full-upgrade, our hector_quadrotor project cann't work again.

We remove and reinstall ros and its dependencies after that hector_quadrotor project work again but octomap_mapping not.

When we use"roslaunch octomap_server octomap_mapping.launch" it say octomap_server: "process has died, exit code -11".

With gdb, we get more detail of error

Thread 1 "octomap_server_" received signal SIGSEGV, Segmentation fault

sysdeps/x86_64/multiarch/memmove-vec-unaligned-erms.S: No such file or directory

This is octomap_mapping.launch

`

	<!-- fixed map frame (set to 'map' if SLAM or localization running!) -->
	<param name="frame_id" type="string" value="world" />
	
	<!-- maximum range to integrate (speedup!) -->
	<param name="sensor_model/max_range" value="5.0" />
	
	<!-- data source to integrate (PointCloud2) -->
	<!-- <remap from="cloud_in" to="/narrow_stereo/points_filtered2" /> -->

</node>

`

(point cloud topic (sensor_msgs/PointCloud2) is already published on /cloud_in so we dont need to remap)

Our environment

• Ubuntu 20
• Ros noetic
• PCL 1.10

I tried to search about "Segmentation fault" and it tend to be something wrong with PCL.

[wxmerkt]

Are you using the Velodyne Gazebo plugin by any chance? We recently saw the error above coming from the Pointcloud-from-message conversion in another package and it was due to malformed LidarScans of the Velodyne Gazebo plugin. In this case compiling the latest Velodyne Gazebo plugin from source fixed it.

[Manit-Chan]

Thank you wxmerkt After i install Velodyne Gazebo plugin from source, It work again and now Marker array are shown on Rviz.

[wxmerkt]

Great, thanks for the feedback. I'll go ahead and will close the issue.