ROS Resources: Documentation | Support | Discussion Forum | Index | Service Status | ros @ Robotics Stack Exchange
Ask Your Question

Walltimer destroyed immediately after creation

asked 2011-08-24 06:08:41 -0500

Aroarus gravatar image

updated 2014-01-28 17:10:17 -0500

ngrennan gravatar image

Hi! I've been using turtlebot software and things are generally working well for me, but I get a recurring warning often when I am running programs. The warning is about a Walltimer that is destroyed immediately after creation. I have not seen this warning in the tutorials I have been reading. Also, I wonder why there is often a lot more text generated on my screen and the process seems to restart several times before working. The output is below:

turtlebot@turtlebot-laptop:~$ roslaunch turtlebot_bringup kinect.launch

... logging to /home/turtlebot/.ros/log/96cb21b2-ce78-11e0-89ae-485d607f80f5/roslaunch-turtlebot-laptop-616.log

Checking log directory for disk usage. This may take awhile.

Press Ctrl-C to interrupt

Done checking log file disk usage. Usage is <1GB.

started roslaunch server



  • /kinect_laser/max_height

  • /openni_camera/depth_rgb_rotation

  • /rosdistro

  • /openni_camera/image_mode

  • /openni_camera/image_time_offset

  • /openni_camera/projector_depth_baseline

  • /kinect_laser_narrow/output_frame_id

  • /openni_camera/depth_mode

  • /kinect_laser_narrow/max_height

  • /openni_camera/depth_frame_id

  • /openni_camera/depth_time_offset

  • /kinect_laser/output_frame_id

  • /rosversion

  • /openni_camera/depth_registration

  • /openni_camera/debayering

  • /openni_camera/depth_rgb_translation

  • /kinect_laser/min_height

  • /pointcloud_throttle/max_rate

  • /openni_camera/shift_offset

  • /kinect_laser_narrow/min_height

  • /openni_camera/rgb_frame_id


kinect_breaker_enabler (turtlebot_node/

openni_manager (nodelet/nodelet)

openni_camera (nodelet/nodelet)

pointcloud_throttle (nodelet/nodelet)

kinect_laser (nodelet/nodelet)

kinect_laser_narrow (nodelet/nodelet)


core service [/rosout] found

process[kinect_breaker_enabler-1]: started with pid [634]

process[openni_manager-2]: started with pid [635]

process[openni_camera-3]: started with pid [637]

process[pointcloud_throttle-4]: started with pid [638]

process[kinect_laser-5]: started with pid [639]

process[kinect_laser_narrow-6]: started with pid [649]

devices to be connected

[kinect_breaker_enabler-1] process has finished cleanly.

log file: /home/turtlebot/.ros/log/96cb21b2-ce78-11e0-89ae-485d607f80f5/kinect_breaker_enabler-1*.log

edit retag flag offensive close merge delete

1 Answer

Sort by ยป oldest newest most voted

answered 2011-08-24 08:18:24 -0500

updated 2011-08-24 08:25:40 -0500

dornhege gravatar image

I get the Walltimer message too, it seems to be a known issue. AFAICT it's benign, and probably not related to the other issues you're having (which from your description are not very clear -- I think you need to elaborate more on the restarting).

edit flag offensive delete link more

Question Tools


Asked: 2011-08-24 06:08:41 -0500

Seen: 398 times

Last updated: Aug 24 '11