Dear Josh,

I'm running ros-cturtle from the debs on Ubuntu 10.04. I've updated them regularly. I ran rosmake --pre-clean just in case it was some build problem.

After more experimentations yesterday I found out that my C++ node was still crashing each time I closed the python node.

Do you want me to send you a tarball containing the code to reproduce that?

Cheers,

Ugo

On 12/10/10 19:53, Josh Faust wrote:

This shouldn't be crashing the C++ node in either case. I just tried reproducing this without any luck, both against the latest cturtle debs and ROS trunk.

I'm guessing this is related to https://code.ros.org/trac/ros-pkg/ticket/4461, which I've also so far been unable to reproduce.

What version of ROS are you running, on what OS?

Josh

On Tue, Oct 12, 2010 at 5:41 AM, Ugo Cupcic <ugo@shadowrobot.com> wrote:

Hey,

I found the problem. If you overload the __del__(self) function in your
class, then something bad happens when closing the node...

Cheers,

Ugo

On 12/10/10 12:02, Ugo Cupcic wrote:
> Hi all,
>
> I have a really weird behaviour in rospy.
> If I create a publisher to an existing topic of a custom C++ node, run
> rospy.spin in a separate node, then do nothing and close the python
> node, the C++ node crashes:
> [shadowhand-5] process has died [pid 5903, exit code -11].
>
> The simple code in python can be found here:
> http://pastebin.com/xwZiKn3R
>
> If I replace the publisher by a subscriber then my C++ node doesn't
> crash. What's really weird is that my C++ node seems to be pretty stable
> (I often kept it running for one day without any trouble). When I run
> the C++ node in gdb then it doesn't crash...
>
> Is there a call made to the node when a publisher to this node is deleted?
>
> Any help greatly appreciated.
>
> Cheers,
>
> Ugo
>

--
Ugo Cupcic | Shadow Robot Company | ugo@shadowrobot.com
Software Engineer | 251 Liverpool Road |
need a Hand? | London N1 1LX | +44 20 7700 2487
http://www.shadowrobot.com/hand/ @shadowrobot

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-- 
Ugo Cupcic         |  Shadow Robot Company | ugo@shadowrobot.com
Software Engineer  |    251 Liverpool Road |
need a Hand?       |    London  N1 1LX     | +44 20 7700 2487
http://www.shadowrobot.com/hand/              @shadowrobot