required process rgbslam-26 has died, exit code -11

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after sucessfully building RGBDSLAM_v2 indigo, i tried to launch with roslaunch rgbdslam openni+rgbdslam.launch. But it failed with error output:

================================================================================REQUIRED process [rgbdslam-26] has died!
process has died [pid 4218, exit code -11, cmd /home/khoa/rgbdslam_indigo_catkin_ws/devel/lib/rgbdslam/rgbdslam __name:=rgbdslam __log:=/home/khoa/.ros/log/659caba0-1bcc-11e6-aa49-e840f2a81ea6/rgbdslam-26.log].
log file: /home/khoa/.ros/log/659caba0-1bcc-11e6-aa49-e840f2a81ea6/rgbdslam-26*.log
Initiating shutdown!
================================================================================
[rgbdslam-26] killing on exit
[camera_base_link3-25] killing on exit

Somehow the process is found dead right after being successfully started. The exit code is -11. Log file rgbdslam-26*never existed. I looked for answer to similar questions on the interwebz but no luck. I just built the package with catkin_make, so it has never been successfully run before.

Relevant info in the log file roslaunch-*.log:

[roslaunch][INFO] 2016-05-17 10:12:18,640: ... successfully launched [camera_base_link3-25]
[roslaunch][INFO] 2016-05-17 10:12:18,640: ... preparing to launch node of type [rgbdslam/rgbdslam]
[roslaunch][INFO] 2016-05-17 10:12:18,640: create_node_process: package[rgbdslam] type[rgbdslam] machine[Machine(name[] env_loader[None] address[localhost] ssh_port[22] user[None] assignable[True] timeout[10.0])] master_uri[http://localhost:11311]
[roslaunch][INFO] 2016-05-17 10:12:18,640: process[rgbdslam-26]: env[{'LC_NUMERIC': 'ja_JP.UTF-8', 'WINDOWID': '79691788', 'QT_QPA_PLATFORMTHEME': 'appmenu-qt5', 'ROS_DISTRO': 'jade', [too long, I truncated], 'XDG_SEAT': 'seat0'}]
[roslaunch][INFO] 2016-05-17 10:12:18,653: process[rgbdslam-26]: args[[u'/home/khoa/rgbdslam_indigo_catkin_ws/devel/lib/rgbdslam/rgbdslam', u'__name:=rgbdslam']]
[roslaunch][INFO] 2016-05-17 10:12:18,653: ... created process [rgbdslam-26]
[roslaunch.pmon][INFO] 2016-05-17 10:12:18,654: ProcessMonitor.register[rgbdslam-26]
[roslaunch.pmon][INFO] 2016-05-17 10:12:18,654: ProcessMonitor.register[rgbdslam-26] complete
[roslaunch][INFO] 2016-05-17 10:12:18,654: ... registered process [rgbdslam-26]
[roslaunch][INFO] 2016-05-17 10:12:18,654: process[rgbdslam-26]: starting os process
[roslaunch][INFO] 2016-05-17 10:12:18,654: process[rgbdslam-26]: start w/ args [[u'/home/khoa/rgbdslam_indigo_catkin_ws/devel/lib/rgbdslam/rgbdslam', u'__name:=rgbdslam', u'__log:=/home/khoa/.ros/log/659caba0-1bcc-11e6-aa49-e840f2a81ea6/rgbdslam-26.log']]
[roslaunch][INFO] 2016-05-17 10:12:18,655: process[rgbdslam-26]: cwd will be [/home/khoa/rgbdslam_indigo_catkin_ws/devel/lib/rgbdslam]
[roslaunch][INFO] 2016-05-17 10:12:18,762: process[rgbdslam-26]: started with pid [4218]
[roslaunch][INFO] 2016-05-17 10:12:18,762: ... successfully launched [rgbdslam-26]
[roslaunch][INFO] 2016-05-17 10:12:18,762: ... launch_nodes complete
[roslaunch.pmon][INFO] 2016-05-17 10:12:18,762: registrations completed <ProcessMonitor(ProcessMonitor-1, started daemon 140574065043200)>
[roslaunch.parent][INFO] 2016-05-17 10:12:18,762: ... roslaunch parent running, waiting for process exit
[roslaunch][INFO] 2016-05-17 10:12:18,763: spin
[roslaunch][ERROR] 2016-05-17 10:12:22,033: ================================================================================REQUIRED process [rgbdslam-26] has died!
process has died [pid 4218, exit code -11, cmd /home/khoa/rgbdslam_indigo_catkin_ws/devel/lib/rgbdslam/rgbdslam __name:=rgbdslam __log:=/home/khoa/.ros/log/659caba0-1bcc-11e6-aa49-e840f2a81ea6/rgbdslam-26.log].
log file: /home/khoa/.ros/log/659caba0-1bcc-11e6-aa49-e840f2a81ea6/rgbdslam-26*.log
Initiating shutdown!
================================================================================

Exit code -11 seems to be segmentation fault. But I can't know any further on how why and where the error occurred. Does anyone know why? Please help...