when i run rgbdslam i change the param in rgbdslam.launch ,the param named "config/topic_points" is changed value to ""(empty), because it cost much bandwith when i use multiply machine to run rgbdslam ,and if that param is empty the poincloud will be reconstructed from image and depth . during the running time, the rgbdslam suddenly died. and the message is

REQUIRED process [rgbdslam - 1] has died!

process has died [pid 13791, exit code -11,cmd /home/tom/fuerteworkspace/sandbox/rgbdslamfreiburg/rgbdslam/bin/rgbdslam _name:=rgbdslam _log:=/home/tom/.ros/log/4a606af4-e584-11e4-b84f-dc85de6b47f0/rgbdslam-1.log].

log file:....

initiating shut down

its that because the reconstruction cost to much memory and my computer's memory is not enough or something else?