Mavros: Keep dropping Message and said：TX queue overflow， when publish topic to mavros/setpoint_raw/local

Dear team,
Could you guys give some help or advice about this.

I have no idea where to debug this, I am using same code, but this error just appear in second day, seems strange.

Issue details

I am using OFFBOARD mode to control the Drone to fly indoor, I have depth sensor and visual tag as feedback and using speed closeloop control. But when I publish msg to /mavros/setpoint_raw/local at 100hz for several second, the error appeared, and seems the drone can not receive any msgs, I test several publish rate and different pixhawk(2 and 4) the error still exist.
I am complete lost. please give a direction.

My launch procedure:
terminal1: roslaunch mavros px4.launch
terminal2: rosrun offboard drone_control.py

My px4.launch

<launch>
    <!-- vim: set ft=xml noet : -->
    <!-- example launch script for PX4 based FCU's -->

    <arg name="fcu_url" default="/dev/ttyACM0:921600" />
    <arg name="gcs_url" default="" />
    <arg name="tgt_system" default="1" />
    <arg name="tgt_component" default="1" />
    <arg name="log_output" default="screen" />
    <arg name="fcu_protocol" default="v2.0" />
    <arg name="respawn_mavros" default="false" />

    <include file="$(find mavros)/launch/node.launch">
        <arg name="pluginlists_yaml" value="$(find mavros)/launch/px4_pluginlists.yaml" />
        <arg name="config_yaml" value="$(find mavros)/launch/px4_config.yaml" />

        <arg name="fcu_url" value="$(arg fcu_url)" />
        <arg name="gcs_url" value="$(arg gcs_url)" />
        <arg name="tgt_system" value="$(arg tgt_system)" />
        <arg name="tgt_component" value="$(arg tgt_component)" />
        <arg name="log_output" value="$(arg log_output)" />
        <arg name="fcu_protocol" value="$(arg fcu_protocol)" />
        <arg name="respawn_mavros" default="$(arg respawn_mavros)" />
    </include>
</launch>

the main loop of my control code

rospy.init_node('drone_control')
PIDinit()

rc_in = rospy.Subscriber('mavros/rc/in', RCIn, callback_rc, queue_size=1)
sub_state = rospy.Subscriber('mavros/state', State, callback_state, queue_size=1)
subodom = rospy.Subscriber('mavros/local_position/odom', Odometry, callback_odom)
subdepth = rospy.Subscriber('depth', Odometry, callback_depth)
position_pub = rospy.Publisher('mavros/setpoint_raw/local', PositionTarget, queue_size=1)
#rospy.spin()


rate = rospy.Rate(100)  
while not rospy.is_shutdown():


    vel_control = TwistStamped()
    pos_control = PoseStamped()

    scale_x = 0.4
    scale_y = 0.4
    scale_z = 1
    scale_yaw = 1

    pid_x.update(feedback_x)
    output_x = pid_x.output * scale_x
    feedback_x = pos_fuse_x
    pid_x.SetPoint = 0

    pid_y.update(feedback_y)
    output_y = pid_y.output * scale_y
    feedback_y = pos_fuse_y
    pid_y.SetPoint = 0

    pid_z.update(feedback_z)
    output_z = pid_z.output * scale_z
    feedback_z = pos_fuse_z

    if SWITCH == 1:
        pid_z.SetPoint = jump_height
    else:
        pid_z.SetPoint = 0

    feedback_yaw = odom_yaw
    if feedback_yaw - last_feedback_yaw != 0: 
        pid_yaw.update(feedback_yaw)
        output_yaw = pid_yaw.output * scale_yaw
        pid_yaw.SetPoint = tag_yaw



    #for stable
    if output_x > 0.02:
        output_x = 0.02
    elif output_x < -0.02:
        output_x = -0.02

    if output_y > 0.02:
        output_y = 0.02
    elif output_y < -0.02:
        output_y = -0.02

    if output_z > 0.1:
        output_z = 0.1
    elif output_z < -0.05:
        output_z = -0.05

    #output_z = 0
    if Z_FEEDBACK_AVALIABLE == 0:
        output_z = 0
    if XY_FEEDBACK_AVALIABLE == 0:
        output_x = 0
        output_y = 0

    setpoint = Vector3()
    setpoint.x = output_x
    setpoint.y = output_y
    setpoint.z = output_z
    stamp = rospy.get_rostime()

    msg = PositionTarget(coordinate_frame=PositionTarget.FRAME_LOCAL_NED,
                             type_mask=
                                       PositionTarget.IGNORE_PX + PositionTarget.IGNORE_PY + PositionTarget.IGNORE_PZ +
                                       PositionTarget.IGNORE_AFX + PositionTarget.IGNORE_AFY + PositionTarget.IGNORE_AFZ +
                                       PositionTarget.IGNORE_YAW + PositionTarget.IGNORE_YAW_RATE,
                             velocity=setpoint, 

                             yaw = output_yaw)
    msg.header.stamp = stamp
    position_pub.publish(msg)

    print  "z_set:", pid_z.SetPoint, "z_out:", output_z, "z_Feb:", feedback_z,'jump',jump_height 

rate.sleep()

MAVROS version and platform

Mavros: 0.18.4
ROS: Kinetic
Ubuntu: 16.04

Autopilot type and version

PX4, the latest version .
My hardware setup :pixhawk4 -(PX4 1.8.0) and pixhawk2, both have the same issue.

Node logs

eleboss@eleboss:~$ roslaunch mavros px4.launch 
... logging to /home/eleboss/.ros/log/7996cdf2-8a74-11e8-8157-00215caf42cc/roslaunch-eleboss-2176.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 http://eleboss:34437/

SUMMARY
========

CLEAR PARAMETERS
 * /mavros/

PARAMETERS
 * /mavros/cmd/use_comp_id_system_control: False
 * /mavros/conn/heartbeat_rate: 1.0
 * /mavros/conn/system_time_rate: 1.0
 * /mavros/conn/timeout: 10.0
 * /mavros/conn/timesync_rate: 10.0
 * /mavros/distance_sensor/hrlv_ez4_pub/field_of_view: 0.0
 * /mavros/distance_sensor/hrlv_ez4_pub/frame_id: hrlv_ez4_sonar
 * /mavros/distance_sensor/hrlv_ez4_pub/id: 0
 * /mavros/distance_sensor/hrlv_ez4_pub/orientation: PITCH_270
 * /mavros/distance_sensor/hrlv_ez4_pub/send_tf: True
 * /mavros/distance_sensor/hrlv_ez4_pub/sensor_position/x: 0.0
 * /mavros/distance_sensor/hrlv_ez4_pub/sensor_position/y: 0.0
 * /mavros/distance_sensor/hrlv_ez4_pub/sensor_position/z: -0.1
 * /mavros/distance_sensor/laser_1_sub/id: 3
 * /mavros/distance_sensor/laser_1_sub/orientation: PITCH_270
 * /mavros/distance_sensor/laser_1_sub/subscriber: True
 * /mavros/distance_sensor/lidarlite_pub/field_of_view: 0.0
 * /mavros/distance_sensor/lidarlite_pub/frame_id: lidarlite_laser
 * /mavros/distance_sensor/lidarlite_pub/id: 1
 * /mavros/distance_sensor/lidarlite_pub/orientation: PITCH_270
 * /mavros/distance_sensor/lidarlite_pub/send_tf: True
 * /mavros/distance_sensor/lidarlite_pub/sensor_position/x: 0.0
 * /mavros/distance_sensor/lidarlite_pub/sensor_position/y: 0.0
 * /mavros/distance_sensor/lidarlite_pub/sensor_position/z: -0.1
 * /mavros/distance_sensor/sonar_1_sub/id: 2
 * /mavros/distance_sensor/sonar_1_sub/orientation: PITCH_270
 * /mavros/distance_sensor/sonar_1_sub/subscriber: True
 * /mavros/fake_gps/eph: 2.0
 * /mavros/fake_gps/epv: 2.0
 * /mavros/fake_gps/fix_type: 3
 * /mavros/fake_gps/geo_origin/alt: 408.0
 * /mavros/fake_gps/geo_origin/lat: 47.3667
 * /mavros/fake_gps/geo_origin/lon: 8.55
 * /mavros/fake_gps/gps_rate: 5.0
 * /mavros/fake_gps/mocap_transform: True
 * /mavros/fake_gps/satellites_visible: 5
 * /mavros/fake_gps/tf/child_frame_id: fix
 * /mavros/fake_gps/tf/frame_id: map
 * /mavros/fake_gps/tf/listen: False
 * /mavros/fake_gps/tf/rate_limit: 10.0
 * /mavros/fake_gps/tf/send: False
 * /mavros/fake_gps/use_mocap: True
 * /mavros/fake_gps/use_vision: False
 * /mavros/fcu_protocol: v2.0
 * /mavros/fcu_url: /dev/ttyACM0:921600
 * /mavros/gcs_url: 
 * /mavros/global_position/child_frame_id: base_link
 * /mavros/global_position/frame_id: map
 * /mavros/global_position/gps_uere: 1.0
 * /mavros/global_position/rot_covariance: 99999.0
 * /mavros/global_position/tf/child_frame_id: base_link
 * /mavros/global_position/tf/frame_id: map
 * /mavros/global_position/tf/global_frame_id: earth
 * /mavros/global_position/tf/send: False
 * /mavros/global_position/use_relative_alt: True
 * /mavros/image/frame_id: px4flow
 * /mavros/imu/angular_velocity_stdev: 0.000349065850399
 * /mavros/imu/frame_id: base_link
 * /mavros/imu/linear_acceleration_stdev: 0.0003
 * /mavros/imu/magnetic_stdev: 0.0
 * /mavros/imu/orientation_stdev: 1.0
 * /mavros/local_position/frame_id: map
 * /mavros/local_position/tf/child_frame_id: base_link
 * /mavros/local_position/tf/frame_id: map
 * /mavros/local_position/tf/send: False
 * /mavros/local_position/tf/send_fcu: False
 * /mavros/mission/pull_after_gcs: True
 * /mavros/mocap/use_pose: True
 * /mavros/mocap/use_tf: False
 * /mavros/odometry/frame_tf/body_frame_orientation: frd
 * /mavros/odometry/frame_tf/local_frame: vision_ned
 * /mavros/plugin_blacklist: ['safety_area', '...
 * /mavros/plugin_whitelist: []
 * /mavros/px4flow/frame_id: px4flow
 * /mavros/px4flow/ranger_fov: 0.118682389136
 * /mavros/px4flow/ranger_max_range: 5.0
 * /mavros/px4flow/ranger_min_range: 0.3
 * /mavros/safety_area/p1/x: 1.0
 * /mavros/safety_area/p1/y: 1.0
 * /mavros/safety_area/p1/z: 1.0
 * /mavros/safety_area/p2/x: -1.0
 * /mavros/safety_area/p2/y: -1.0
 * /mavros/safety_area/p2/z: -1.0
 * /mavros/setpoint_accel/send_force: False
 * /mavros/setpoint_attitude/reverse_thrust: False
 * /mavros/setpoint_attitude/tf/child_frame_id: target_attitude
 * /mavros/setpoint_attitude/tf/frame_id: map
 * /mavros/setpoint_attitude/tf/listen: False
 * /mavros/setpoint_attitude/tf/rate_limit: 50.0
 * /mavros/setpoint_attitude/use_quaternion: False
 * /mavros/setpoint_position/mav_frame: LOCAL_NED
 * /mavros/setpoint_position/tf/child_frame_id: target_position
 * /mavros/setpoint_position/tf/frame_id: map
 * /mavros/setpoint_position/tf/listen: False
 * /mavros/setpoint_position/tf/rate_limit: 50.0
 * /mavros/setpoint_velocity/mav_frame: LOCAL_NED
 * /mavros/startup_px4_usb_quirk: True
 * /mavros/sys/disable_diag: False
 * /mavros/sys/min_voltage: 10.0
 * /mavros/target_component_id: 1
 * /mavros/target_system_id: 1
 * /mavros/tdr_radio/low_rssi: 40
 * /mavros/time/time_ref_source: fcu
 * /mavros/time/timesync_avg_alpha: 0.6
 * /mavros/time/timesync_mode: MAVLINK
 * /mavros/vibration/frame_id: base_link
 * /mavros/vision_pose/tf/child_frame_id: vision_estimate
 * /mavros/vision_pose/tf/frame_id: map
 * /mavros/vision_pose/tf/listen: False
 * /mavros/vision_pose/tf/rate_limit: 10.0
 * /mavros/vision_speed/listen_twist: True
 * /mavros/vision_speed/twist_cov: True
 * /rosdistro: kinetic
 * /rosversion: 1.12.13

NODES
  /
    mavros (mavros/mavros_node)

auto-starting new master
process[master]: started with pid [2186]
ROS_MASTER_URI=http://localhost:11311

setting /run_id to 7996cdf2-8a74-11e8-8157-00215caf42cc
process[rosout-1]: started with pid [2212]
started core service [/rosout]
process[mavros-2]: started with pid [2234]
[ INFO] [1531909350.225120069]: FCU URL: /dev/ttyACM0:921600
[ INFO] [1531909350.226491699]: serial0: device: /dev/ttyACM0 @ 921600 bps
[ INFO] [1531909350.226820176]: GCS bridge disabled
[ INFO] [1531909350.237634293]: Plugin 3dr_radio loaded
[ INFO] [1531909350.239873558]: Plugin 3dr_radio initialized
[ INFO] [1531909350.239991995]: Plugin actuator_control loaded
[ INFO] [1531909350.244402711]: Plugin actuator_control initialized
[ INFO] [1531909350.247686605]: Plugin adsb loaded
[ INFO] [1531909350.252164477]: Plugin adsb initialized
[ INFO] [1531909350.252287819]: Plugin altitude loaded
[ INFO] [1531909350.253538253]: Plugin altitude initialized
[ INFO] [1531909350.253642790]: Plugin cam_imu_sync loaded
[ INFO] [1531909350.254385422]: Plugin cam_imu_sync initialized
[ INFO] [1531909350.254507458]: Plugin command loaded
[ INFO] [1531909350.260767607]: Plugin command initialized
[ INFO] [1531909350.260882761]: Plugin debug_value loaded
[ INFO] [1531909350.266724238]: Plugin debug_value initialized
[ INFO] [1531909350.266761950]: Plugin distance_sensor blacklisted
[ INFO] [1531909350.266880713]: Plugin fake_gps loaded
[ INFO] [1531909350.285235202]: Plugin fake_gps initialized
[ INFO] [1531909350.285378124]: Plugin ftp loaded
[ INFO] [1531909350.292893777]: Plugin ftp initialized
[ INFO] [1531909350.293056406]: Plugin global_position loaded
[ INFO] [1531909350.316684204]: Plugin global_position initialized
[ INFO] [1531909350.316814783]: Plugin hil loaded
[ INFO] [1531909350.332854567]: Plugin hil initialized
[ INFO] [1531909350.332996072]: Plugin home_position loaded
[ INFO] [1531909350.337255788]: Plugin home_position initialized
[ INFO] [1531909350.337395106]: Plugin imu loaded
[ INFO] [1531909350.349334493]: Plugin imu initialized
[ INFO] [1531909350.349473928]: Plugin local_position loaded
[ INFO] [1531909350.356977561]: Plugin local_position initialized
[ INFO] [1531909350.357114405]: Plugin manual_control loaded
[ INFO] [1531909350.360976164]: Plugin manual_control initialized
[ INFO] [1531909350.361126079]: Plugin mocap_pose_estimate loaded
[ INFO] [1531909350.365655865]: Plugin mocap_pose_estimate initialized
[ INFO] [1531909350.365762619]: Plugin obstacle_distance loaded
[ INFO] [1531909350.368553759]: Plugin obstacle_distance initialized
[ INFO] [1531909350.368653103]: Plugin odom loaded
[ INFO] [1531909350.375619144]: Plugin odom initialized
[ INFO] [1531909350.375787260]: Plugin param loaded
[ INFO] [1531909350.379399807]: Plugin param initialized
[ INFO] [1531909350.379516510]: Plugin px4flow loaded
[ INFO] [1531909350.388167015]: Plugin px4flow initialized
[ INFO] [1531909350.388223705]: Plugin rangefinder blacklisted
[ INFO] [1531909350.388343616]: Plugin rc_io loaded
[ INFO] [1531909350.393300762]: Plugin rc_io initialized
[ INFO] [1531909350.393341683]: Plugin safety_area blacklisted
[ INFO] [1531909350.393454501]: Plugin setpoint_accel loaded
[ INFO] [1531909350.397677023]: Plugin setpoint_accel initialized
[ INFO] [1531909350.397807837]: Plugin setpoint_attitude loaded
[ INFO] [1531909350.412717136]: Plugin setpoint_attitude initialized
[ INFO] [1531909350.412859535]: Plugin setpoint_position loaded
[ INFO] [1531909350.429525693]: Plugin setpoint_position initialized
[ INFO] [1531909350.429714780]: Plugin setpoint_raw loaded
[ INFO] [1531909350.443358052]: Plugin setpoint_raw initialized
[ INFO] [1531909350.443515688]: Plugin setpoint_velocity loaded
[ INFO] [1531909350.454251102]: Plugin setpoint_velocity initialized
[ INFO] [1531909350.454424023]: Plugin sys_status loaded
[ INFO] [1531909350.467968466]: Plugin sys_status initialized
[ INFO] [1531909350.468137527]: Plugin sys_time loaded
[ INFO] [1531909350.481905565]: TM: Timesync mode: MAVLINK
[ INFO] [1531909350.483516225]: Plugin sys_time initialized
[ INFO] [1531909350.483657797]: Plugin trajectory loaded
[ INFO] [1531909350.493581639]: Plugin trajectory initialized
[ INFO] [1531909350.494069993]: Plugin vfr_hud loaded
[ INFO] [1531909350.496142178]: Plugin vfr_hud initialized
[ INFO] [1531909350.496190904]: Plugin vibration blacklisted
[ INFO] [1531909350.496335388]: Plugin vision_pose_estimate loaded
[ INFO] [1531909350.515468449]: Plugin vision_pose_estimate initialized
[ INFO] [1531909350.515643746]: Plugin vision_speed_estimate loaded
[ INFO] [1531909350.521799504]: Plugin vision_speed_estimate initialized
[ INFO] [1531909350.521968502]: Plugin waypoint loaded
[ INFO] [1531909350.538189416]: Plugin waypoint initialized
[ INFO] [1531909350.538386255]: Plugin wind_estimation loaded
[ INFO] [1531909350.539889616]: Plugin wind_estimation initialized
[ INFO] [1531909350.539964946]: Autostarting mavlink via USB on PX4
[ INFO] [1531909350.540088826]: Built-in SIMD instructions: SSE, SSE2
[ INFO] [1531909350.540114338]: Built-in MAVLink package version: 2018.6.6
[ INFO] [1531909350.540150085]: Known MAVLink dialects: common ardupilotmega ASLUAV autoquad icarous matrixpilot paparazzi slugs standard uAvionix ualberta
[ INFO] [1531909350.540186079]: MAVROS started. MY ID 1.240, TARGET ID 1.1
[ INFO] [1531909350.622977431]: IMU: High resolution IMU detected!
[ INFO] [1531909350.770808248]: IMU: Attitude quaternion IMU detected!
[ INFO] [1531909351.510894360]: CON: Got HEARTBEAT, connected. FCU: PX4 Autopilot
[ INFO] [1531909351.524575461]: IMU: High resolution IMU detected!
[ INFO] [1531909351.536849572]: IMU: Attitude quaternion IMU detected!
[ INFO] [1531909352.521216751]: VER: 1.1: Capabilities         0x000000000000e4ef
[ INFO] [1531909352.521527249]: VER: 1.1: Flight software:     010800ff (00000000F3E3ADAE)
[ INFO] [1531909352.521695764]: VER: 1.1: Middleware software: 010800ff (00000000F3E3ADAE)
[ INFO] [1531909352.521851432]: VER: 1.1: OS software:         071600ff (0000000000000000)
[ INFO] [1531909352.522007743]: VER: 1.1: Board hardware:      00000011
[ INFO] [1531909352.522150719]: VER: 1.1: VID/PID:             26ac:0011
[ INFO] [1531909352.522287591]: VER: 1.1: UID:                 3036510831353833
[ WARN] [1531909352.522524746]: CMD: Unexpected command 520, result 0
[ERROR] [1531909354.991362039]: 0: DROPPED Message SET_POSITION_TARGET_LOCAL_NED: MAVConnSerial::send_message: TX queue overflow
[ERROR] [1531909354.991492639]: 0: DROPPED Message SET_POSITION_TARGET_LOCAL_NED: MAVConnSerial::send_message: TX queue overflow
[ERROR] [1531909354.992848484]: 0: DROPPED Message SET_POSITION_TARGET_LOCAL_NED: MAVConnSerial::send_message: TX queue overflow
[ERROR] [1531909354.995085754]: 0: DROPPED Message SET_POSITION_TARGET_LOCAL_NED: MAVConnSerial::send_message: TX queue overflow
[ERROR] [1531909354.995192916]: 0: DROPPED Message SET_POSITION_TARGET_LOCAL_NED: MAVConnSerial::send_message: TX queue overflow
[ERROR] [1531909354.995250845]: 0: DROPPED Message SET_POSITION_TARGET_LOCAL_NED: MAVConnSerial::send_message: TX queue overflow
[ERROR] [1531909354.998997752]: 0: DROPPED Message SET_POSITION_TARGET_LOCAL_NED: MAVConnSerial::send_message: TX queue overflow
[ERROR] [1531909354.999679892]: 0: DROPPED Message SET_POSITION_TARGET_LOCAL_NED: MAVConnSerial::send_message: TX queue overflow
[ERROR] [1531909354.999754820]: 0: DROPPED Message SET_POSITION_TARGET_LOCAL_NED: MAVConnSerial::send_message: TX queue overflow
[ERROR] [1531909355.000055547]: 0: DROPPED Message SET_POSITION_TARGET_LOCAL_NED: MAVConnSerial::send_message: TX queue overflow
[ERROR] [1531909355.002572007]: 0: DROPPED Message SET_POSITION_TARGET_LOCAL_NED: MAVConnSerial::send_message: TX queue overflow
[ERROR] [1531909355.002665214]: 0: DROPPED Message SET_POSITION_TARGET_LOCAL_NED: MAVConnSerial::send_message: TX queue overflow
[ERROR] [1531909355.002730521]: 0: DROPPED Message SET_POSITION_TARGET_LOCAL_NED: MAVConnSerial::send_message: TX queue overflow
[ERROR] [1531909355.002792850]: 0: DROPPED Message SET_POSITION_TARGET_LOCAL_NED: MAVConnSerial::send_message: TX queue overflow
[ERROR] [1531909355.002890051]: 0: DROPPED Message SET_POSITION_TARGET_LOCAL_NED: MAVConnSerial::send_message: TX queue overflow
[ERROR] [1531909355.002958791]: 0: DROPPED Message SET_POSITION_TARGET_LOCAL_NED: MAVConnSerial::send_message: TX queue overflow
[ERROR] [1531909355.003023608]: 0: DROPPED Message SET_POSITION_TARGET_LOCAL_NED: MAVConnSerial::send_message: TX queue overflow
[ERROR] [1531909355.003079069]: 0: DROPPED Message SET_POSITION_TARGET_LOCAL_NED: MAVConnSerial::send_message: TX queue overflow
[ERROR] [1531909355.003137396]: 0: DROPPED Message SET_POSITION_TARGET_LOCAL_NED: MAVConnSerial::send_message: TX queue overflow
[ERROR] [1531909355.003192739]: 0: DROPPED Message SET_POSITION_TARGET_LOCAL_NED: MAVConnSerial::send_message: TX queue overflow
[ERROR] [1531909355.003248728]: 0: DROPPED Message SET_POSITION_TARGET_LOCAL_NED: MAVConnSerial::send_message: TX queue overflow
[ERROR] [1531909355.003375496]: 0: DROPPED Message SET_POSITION_TARGET_LOCAL_NED: MAVConnSerial::send_message: TX queue overflow
[ERROR] [1531909355.003647546]: 0: DROPPED Message SET_POSITION_TARGET_LOCAL_NED: MAVConnSerial::send_message: TX queue overflow
[ERROR] [1531909355.004041463]: 0: DROPPED Message SET_POSITION_TARGET_LOCAL_NED: MAVConnSerial::send_message: TX queue overflow
[ERROR] [1531909355.004533199]: 0: DROPPED Message SET_POSITION_TARGET_LOCAL_NED: MAVConnSerial::send_message: TX queue overflow
[ERROR] [1531909355.005017337]: 0: DROPPED Message SET_POSITION_TARGET_LOCAL_NED: MAVConnSerial::send_message: TX queue overflow
[ERROR] [1531909355.005340368]: 0: DROPPED Message SET_POSITION_TARGET_LOCAL_NED: MAVConnSerial::send_message: TX queue overflow
[ERROR] [1531909355.005722578]: 0: DROPPED Message SET_POSITION_TARGET_LOCAL_NED: MAVConnSerial::send_message: TX queue overflow
[ERROR] [1531909355.006120254]: 0: DROPPED Message SET_POSITION_TARGET_LOCAL_NED: MAVConnSerial::send_message: TX queue overflow
[ERROR] [1531909355.006537709]: 0: DROPPED Message SET_POSITION_TARGET_LOCAL_NED: MAVConnSerial::send_message: TX queue overflow
[ERROR] [1531909355.006987191]: 0: DROPPED Message SET_POSITION_TARGET_LOCAL_NED: MAVConnSerial::send_message: TX queue overflow
[ERROR] [1531909355.007467659]: 0: DROPPED Message SET_POSITION_TARGET_LOCAL_NED: MAVConnSerial::send_message: TX queue overflow
[ERROR] [1531909355.007845275]: 0: DROPPED Message SET_POSITION_TARGET_LOCAL_NED: MAVConnSerial::send_message: TX queue overflow
[ERROR] [1531909355.008362372]: 0: DROPPED Message SET_POSITION_TARGET_LOCAL_NED: MAVConnSerial::send_message: TX queue overflow
[ERROR] [1531909355.008871683]: 0: DROPPED Message SET_POSITION_TARGET_LOCAL_NED: MAVConnSerial::send_message: TX queue overflow
[ERROR] [1531909355.009518278]: 0: DROPPED Message SET_POSITION_TARGET_LOCAL_NED: MAVConnSerial::send_message: TX queue overflow
[ERROR] [1531909355.010015781]: 0: DROPPED Message SET_POSITION_TARGET_LOCAL_NED: MAVConnSerial::send_message: TX queue overflow
[ERROR] [1531909355.010528035]: 0: DROPPED Message SET_POSITION_TARGET_LOCAL_NED: MAVConnSerial::send_message: TX queue overflow

Diagnostics

eleboss@eleboss:~$ rostopic echo /diagnostics 
header: 
  seq: 14
  stamp: 
    secs: 1531909925
    nsecs: 482805514
  frame_id: ''
status: 
  - 
    level: 0
    name: "mavros: FCU connection"
    message: "connected"
    hardware_id: "/dev/ttyACM0:921600"
    values: 
      - 
        key: "Received packets:"
        value: "4799"
      - 
        key: "Dropped packets:"
        value: "0"
      - 
        key: "Buffer overruns:"
        value: "0"
      - 
        key: "Parse errors:"
        value: "0"
      - 
        key: "Rx sequence number:"
        value: "176"
      - 
        key: "Tx sequence number:"
        value: "166"
      - 
        key: "Rx total bytes:"
        value: "222864"
      - 
        key: "Tx total bytes:"
        value: "42088"
      - 
        key: "Rx speed:"
        value: "18536.000000"
      - 
        key: "Tx speed:"
        value: "4120.000000"
  - 
    level: 2
    name: "mavros: GPS"
    message: "No satellites"
    hardware_id: "/dev/ttyACM0:921600"
    values: 
      - 
        key: "Satellites visible"
        value: "0"
      - 
        key: "Fix type"
        value: "0"
      - 
        key: "EPH (m)"
        value: "Unknown"
      - 
        key: "EPV (m)"
        value: "Unknown"
  - 
    level: 0
    name: "mavros: Heartbeat"
    message: "Normal"
    hardware_id: "/dev/ttyACM0:921600"
    values: 
      - 
        key: "Heartbeats since startup"
        value: "12"
      - 
        key: "Frequency (Hz)"
        value: "0.955432"
      - 
        key: "Vehicle type"
        value: "Hexarotor"
      - 
        key: "Autopilot type"
        value: "PX4 Autopilot"
      - 
        key: "Mode"
        value: "MANUAL"
      - 
        key: "System status"
        value: "Standby"
  - 
    level: 0
    name: "mavros: System"
    message: "Normal"
    hardware_id: "/dev/ttyACM0:921600"
    values: 
      - 
        key: "Sensor present"
        value: "0x00000000"
      - 
        key: "Sensor enabled"
        value: "0x00000000"
      - 
        key: "Sensor helth"
        value: "0x00000000"
      - 
        key: "CPU Load (%)"
        value: "55.5"
      - 
        key: "Drop rate (%)"
        value: "0.0"
      - 
        key: "Errors comm"
        value: "0"
      - 
        key: "Errors count #1"
        value: "0"
      - 
        key: "Errors count #2"
        value: "0"
      - 
        key: "Errors count #3"
        value: "0"
      - 
        key: "Errors count #4"
        value: "0"
  - 
    level: 0
    name: "mavros: Battery"
    message: "Normal"
    hardware_id: "/dev/ttyACM0:921600"
    values: 
      - 
        key: "Voltage"
        value: "65.54"
      - 
        key: "Current"
        value: "-0.0"
      - 
        key: "Remaining"
        value: "-1.0"
  - 
    level: 0
    name: "mavros: Time Sync"
    message: "Normal"
    hardware_id: "/dev/ttyACM0:921600"
    values: 
      - 
        key: "Timesyncs since startup"
        value: "44"
      - 
        key: "Frequency (Hz)"
        value: "3.507350"
      - 
        key: "Last RTT (ms)"
        value: "6450.054686"
      - 
        key: "Mean RTT (ms)"
        value: "281.613853"
      - 
        key: "Last remote time (s)"
        value: "702.575705000"
      - 
        key: "Estimated time offset (s)"
        value: "1531909221.221841335"
---