crash_with_sf10a

Warning [parser.cc:778] XML Element[robotNamespace], child of element[sensor] not defined in SDF. Ignoring[robotNamespace]. You may have an incorrect SDF file, or an sdformat version that doesn't support this element.
[tcsetpgrp failed in terminal_inferior: Inappropriate ioctl for device]
[Wrn] [gazebo_lidar_plugin.cpp:96] [gazebo_lidar_plugin] Please specify a robotNamespace.
[Wrn] [RaySensor.cc:359] ranges not constructed yet (zero sized)
[tcsetpgrp failed in terminal_inferior: Inappropriate ioctl for device]
[INFO] [1487005540.771210, 0.148000]: Spawn status: SpawnModel: Successfully spawned model
[tcsetpgrp failed in terminal_inferior: Inappropriate ioctl for device]
[ INFO] [1487005540.799034569, 0.148000000]: Physics dynamic reconfigure ready.
[Thread 0x7fffabfff700 (LWP 8387) exited]
[Wrn] [gazebo_lidar_plugin.cpp:96] [gazebo_lidar_plugin] Please specify a robotNamespace.

Thread 1 "gzserver" received signal SIGSEGV, Segmentation fault.
0x00007ffff71e7410 in std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >::_M_assign(std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&) ()
   from /usr/lib/x86_64-linux-gnu/libstdc++.so.6
(gdb) 
(gdb) [vehicle_spawn_Kabir_MacBookPro_8225_4634662316344043090-5] process has finished cleanly
log file: /home/kabir/.ros/log/a18a8f42-f20e-11e6-9c6c-c0cecdec0bd1/vehicle_spawn_Kabir_MacBookPro_8225_4634662316344043090-5*.log

(gdb) bt
#0  0x00007ffff71e7410 in std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >::_M_assign(std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&) ()
   from /usr/lib/x86_64-linux-gnu/libstdc++.so.6
#1  0x00007ffff5c61a32 in std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >::assign (
    __str=<error reading variable: Cannot create a lazy string with address 0x0, and a non-zero length.>, this=0x2d9a1a8)
    at /usr/include/c++/5/bits/basic_string.h:1095
#2  std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >::operator= (
    __str=<error reading variable: Cannot create a lazy string with address 0x0, and a non-zero length.>, this=0x2d9a1a8)
    at /usr/include/c++/5/bits/basic_string.h:551
#3  gazebo::transport::Node::Init (this=0x2d9a190, 
    _space=<error reading variable: Cannot create a lazy string with address 0x0, and a non-zero length.>)
    at /build/gazebo-nhSAPd/gazebo-7.0.0+dfsg/gazebo/transport/Node.cc:90
#4  0x00007fff78c9090e in gazebo::RayPlugin::Load(std::shared_ptr<gazebo::sensors::Sensor>, std::shared_ptr<sdf::Element>) ()
   from /home/kabir/catkin_ws/devel/lib/libgazebo_lidar_plugin.so
#5  0x00007ffff688495d in gazebo::sensors::Sensor::LoadPlugin (
    this=this@entry=0x7fff60267430, 
---Type <return> to continue, or q <return> to quit---
    _sdf=std::shared_ptr (count 4, weak 1) 0x7fff607f2e50)
    at /build/gazebo-nhSAPd/gazebo-7.0.0+dfsg/gazebo/sensors/Sensor.cc:312
#6  0x00007ffff6887458 in gazebo::sensors::Sensor::Init (
    this=this@entry=0x7fff60267430)
    at /build/gazebo-nhSAPd/gazebo-7.0.0+dfsg/gazebo/sensors/Sensor.cc:131
#7  0x00007ffff687ca50 in gazebo::sensors::RaySensor::Init (
    this=0x7fff60267430)
    at /build/gazebo-nhSAPd/gazebo-7.0.0+dfsg/gazebo/sensors/RaySensor.cc:126
#8  0x00007ffff688de88 in gazebo::sensors::SensorManager::Update (
    this=this@entry=0x7ffff6ae5480 <SingletonT<gazebo::sensors::SensorManager>::GetInstance()::t>, _force=_force@entry=false)
    at /build/gazebo-nhSAPd/gazebo-7.0.0+dfsg/gazebo/sensors/SensorManager.cc:125
#9  0x00007ffff6882f3a in gazebo::sensors::run_once (_force=_force@entry=false)
    at /build/gazebo-nhSAPd/gazebo-7.0.0+dfsg/gazebo/sensors/SensorsIface.cc:118
#10 0x00007ffff7ba4e10 in gazebo::Server::Run (this=this@entry=0x68a730)
    at /build/gazebo-nhSAPd/gazebo-7.0.0+dfsg/gazebo/Server.cc:562
#11 0x0000000000402ce8 in main (argc=11, argv=0x7fffffffd788)
    at /build/gazebo-nhSAPd/gazebo-7.0.0+dfsg/gazebo/server_main.cc:40
(gdb)