core dump whenever exiting Python MoveIt script

[pirobot]

I am using the Python moveit_commander API (ROS Hydro Debian install and Ubuntu 12.04). My scripts run fine but they always exit with the following core dump message:

python: /usr/include/boost/thread/pthread/pthread_mutex_scoped_lock.hpp:26: boost::pthread::pthread_mutex_scoped_lock::pthread_mutex_scoped_lock(pthread_mutex_t*): Assertion `!pthread_mutex_lock(m)' failed.

Aborted (core dumped)

Is this something I should worry about?

[pirobot]

I discovered that if I add the following line to the end of my script, the error goes away:

moveit_commander.os._exit(0)

[acornacorn]

This is an annoying bug and we need to fix it, but I think it is benign and you can ignore it for now.

[pirobot]

OK, thanks!

[AzureViolin]

Hi, Acorn, How's things going now? I rebuilt Moveit from source recently and still got this bug even when I run tutorial roslaunch pr2_moveit_tutorials move_group_interface_tutorial

[cmaestre]

Hi! I am just having the same problem in CPP when using MoveGroup (for example, moveit::planning_interface::MoveGroup group("right_arm"));

As this makes my program to be killed when exiting I cannot use Valgrind to seek for memory leaks. Any solutions?

[e1000i]

@cmaestre I'm started to notice this same problem in cpp this week. But as commander package is not invoked when using cpp interfaces. In order to avoid mixing things and keep them clear we should report the problem to the moveit_core package,there is where cpp interfaces resides.

I did not report it yet because i was thinking it could be unrelated to moveit and I had no time to furder investaget it. If you discarted other origins pleas report there the issue, i will try to add some more information to your publication there.

[cmaestre]

Hi,

I already found this problem reported and open here:

https://github.com/ros-planning/moveit_ros/issues/392

Best Carlos

On 1 August 2014 10:52, Emili Boronat Roselló notifications@github.com wrote:

@cmaestre https://github.com/cmaestre I'm started to notice this same problem in cpp this week. But as commander package is not invoked when using cpp interfaces. In order to avoid mixing things and keep them clear we should report the problem to the moveit_core package,there is where cpp interfaces resides.

I did not report it yet because i was thinking it could be unrelated to moveit and I had no time to furder investaget it. If you discarted other origins pleas report there the issue, i will try to add some more information to your publication there.

— Reply to this email directly or view it on GitHub https://github.com/ros-planning/moveit_commander/issues/15#issuecomment-50862914 .

[v4hn]

I don't see this issue anymore in current indigo-devel. moveit_commander_cmdline.py as well as move_group_interface_tutorial terminate without errors. I'll therefore close this issue. If anyone experiences the problem again, feel free to open a new request with an updated test case.