Hello, all. I'm trying to use Hokuyo laser scanner(URG-04LX) on gumstix. Although successfully built hokuyo_node package, alignment exception fault occured. but getID and getFirmwareVersion worked find. Device at /dev/ttyACM0 has ID H0907156 Device at /dev/ttyACM0 has FW rev 3.3.00(16/Apr./2008) hokuyo_node produced this kernel error message. Alignment trap: not handling instruction ed868b00 at [<0002f6be>] Unhandled fault: alignment exception (0x801) at 0x000875bb /opt/ros/cturtle/ros/bin/rosrun: line 35: 729 Illegal instruction $exepath "$@ Does anyone who experience this kind of error or know how to handle it? Please let me know. Many thanks in advance. enddl22. -- View this message in context: http://ros-users.122217.n3.nabble.com/Alignment-trap-fault-when-running-hokuyo-node-on-gumstix-tp1838812p1838812.html Sent from the ROS-Users mailing list archive at Nabble.com.