Some strange behaviour. Here is the 170 byte payload request and also why is the serial buffer filling up so often?
[ WARN] [1333652619.496448447]: diagnostic_updater: No HW_ID was set. This is probably a bug. Please report it. For devices that do not have a HW_ID, set this value to 'none'. This warning only occurs once all diagnostics are OK so it is okay to wait until the device is open before calling setHardwareID.
[ INFO] [1333652619.594795983]: DiffDriveBase : using odom_frame_id [odom_combined][/kobuki/mobile_base].
[ INFO] [1333652619.598861560]: DiffDriveBase : using base_frame_id [base_footprint][/kobuki/mobile_base].
[ WARN] [1333652621.062831327]: kobuki_node : serial buffer filling up, clearing [44 bytes]
[ WARN] [1333652621.102770648]: kobuki_node : serial buffer filling up, clearing [46 bytes]
[ INFO] [1333652624.621039157]: Mobile Base : configured a differential drive platform [/kobuki/mobile_base]
[ WARN] [1333652626.202768009]: kobuki_node : serial buffer filling up, clearing [37 bytes]
[ WARN] [1333652637.542795507]: Packet Handler : abnormally sized payload retrieved, clearing [64][170]
[ WARN] [1333652639.035271114]: kobuki_node : serial buffer filling up, clearing [31 bytes]
[ WARN] [1333652639.076779963]: kobuki_node : serial buffer filling up, clearing [44 bytes]
[ WARN] [1333652645.232780532]: kobuki_node : serial buffer filling up, clearing [47 bytes]