ogre_tools: PointCloud crashes with NULL-pointer dereference if no technique is available (ros-pkg ticket #2829)

[hershwg]

{{{
Ogre::Technique::setSceneBlending (this=0x0, sbt=Ogre::SBT_REPLACE)
at /usr/include/c++/4.3/bits/stl_iterator.h:683
683 __normal_iterator(const _Iterator& __i) : _M_current(__i) { }
(gdb) bt
#0 Ogre::Technique::setSceneBlending (this=0x0, sbt=Ogre::SBT_REPLACE)

at /usr/include/c++/4.3/bits/stl_iterator.h:683

#1 0xb7391fe5 in ogre_tools::setReplace (mat=@0xb3ce0c30)

at /home/mine/ros/pkgs/visualization_common/ogre_tools/src/ogre_tools/point_cloud.cpp:358

#2 0xb73922a0 in ogre_tools::PointCloud::setAlpha (this=0xb3ce0b30, alpha=1)

at /home/mine/ros/pkgs/visualization_common/ogre_tools/src/ogre_tools/point_cloud.cpp:376

#3 0xb7396fb6 in PointCloud (this=0xb3ce0b30)

at /home/mine/ros/pkgs/visualization_common/ogre_tools/src/ogre_tools/point_cloud.cpp:159

#4 0xa65697d6 in PointCloudBase (this=0x8c533c8, name=@0x8c33a38, manager=0x8bfbb00)

at /home/mine/ros/pkgs/visualization/rviz/src/default_plugin/point_cloud_base.cpp:326

#5 0xa6584920 in LaserScanDisplay (this=0x8c533c8, name=@0x8c33a38, manager=0x8bfbb00)

at /home/mine/ros/pkgs/visualization/rviz/src/default_plugin/laser_scan_display.cpp:50

#6 0xa65f6bce in rviz::DisplayCreatorTrviz::LaserScanDisplay::create (this=0x8c194a0,

name=@0x8c33a38, manager=0x8bfbb00)
at /home/mine/ros/pkgs/visualization/rviz/src/rviz/plugin/display_creator.h:54

#7 0xb7ed3a42 in rviz::Plugin::createDisplay (this=0x8c01450, class_name=@0x8c33a40,

name=@0x8c33a38, manager=0x8bfbb00)
at /home/mine/ros/pkgs/visualization/rviz/src/rviz/plugin/plugin.cpp:289

#8 0xb7f35437 in rviz::DisplayWrapper::createDisplay (this=0x8c33a28)

at /home/mine/ros/pkgs/visualization/rviz/src/rviz/display_wrapper.cpp:158

#9 0xb7f15545 in rviz::VisualizationManager::addDisplay (this=0x8bfbb00, wrapper=0x8c33a28,

enabled=true)
at /home/mine/ros/pkgs/visualization/rviz/src/rviz/visualization_manager.cpp:486

#10 0xb7f157f4 in rviz::VisualizationManager::createDisplay (this=0x8bfbb00,

package=@0xbfefe438, class_name=@0xbfefe440, name=@0xbfefe43c, enabled=false)
at /home/mine/ros/pkgs/visualization/rviz/src/rviz/visualization_manager.cpp:754

#11 0xb7efc937 in rviz::DisplaysPanel::onNewDisplay (this=0x87f9268, event=@0xbfefe504)

at /home/mine/ros/pkgs/visualization/rviz/src/rviz/displays_panel.cpp:192

#12 0xb6b81138 in wxAppConsole::HandleEvent () from /usr/lib/libwx_baseu-2.8.so.0
#13 0xb6c1f47a in wxEvtHandler::ProcessEventIfMatches () from /usr/lib/libwx_baseu-2.8.so.0
#14 0xb6c1f606 in wxEvtHandler::SearchDynamicEventTable () from /usr/lib/libwx_baseu-2.8.so.0
#15 0xb6c2076d in wxEvtHandler::ProcessEvent () from /usr/lib/libwx_baseu-2.8.so.0
#16 0xb6e49078 in ?? () from /usr/lib/libwx_gtk2u_core-2.8.so.0
#17 0xb55013d4 in g_cclosure_marshal_VOID__VOID () from /usr/lib/libgobject-2.0.so.0
#18 0xb54f3c4b in g_closure_invoke () from /usr/lib/libgobject-2.0.so.0
#19 0xb550a5d8 in ?? () from /usr/lib/libgobject-2.0.so.0
#20 0xb550b7ac in g_signal_emit_valist () from /usr/lib/libgobject-2.0.so.0
#21 0xb550bc26 in g_signal_emit () from /usr/lib/libgobject-2.0.so.0
#22 0xb57e1eaa in gtk_button_clicked () from /usr/lib/libgtk-x11-2.0.so.0
#23 0xb57e2f58 in ?? () from /usr/lib/libgtk-x11-2.0.so.0
#24 0xb55013d4 in g_cclosure_marshal_VOID__VOID () from /usr/lib/libgobject-2.0.so.0
#25 0xb54f23c9 in ?? () from /usr/lib/libgobject-2.0.so.0
#26 0xb54f3c4b in g_closure_invoke () from /usr/lib/libgobject-2.0.so.0
#27 0xb55098ee in ?? () from /usr/lib/libgobject-2.0.so.0
#28 0xb550b7ac in g_signal_emit_valist () from /usr/lib/libgobject-2.0.so.0
#29 0xb550bc26 in g_signal_emit () from /usr/lib/libgobject-2.0.so.0
#30 0xb57e1f4a in gtk_button_released () from /usr/lib/libgtk-x11-2.0.so.0
#31 0xb57e1f83 in ?? () from /usr/lib/libgtk-x11-2.0.so.0
#32 0xb5896036 in ?? () from /usr/lib/libgtk-x11-2.0.so.0
#33 0xb54f23c9 in ?? () from /usr/lib/libgobject-2.0.so.0
#34 0xb54f3c4b in g_closure_invoke () from /usr/lib/libgobject-2.0.so.0
#35 0xb5509d3d in ?? () from /usr/lib/libgobject-2.0.so.0
#36 0xb550b62b in g_signal_emit_valist () from /usr/lib/libgobject-2.0.so.0
#37 0xb550bc26 in g_signal_emit () from /usr/lib/libgobject-2.0.so.0
#38 0xb59ab33e in ?? () from /usr/lib/libgtk-x11-2.0.so.0
#39 0xb588eb4c in gtk_propagate_event () from /usr/lib/libgtk-x11-2.0.so.0
#40 0xb588fef7 in gtk_main_do_event () from /usr/lib/libgtk-x11-2.0.so.0
#41 0xb572650a in ?? () from /usr/lib/libgdk-x11-2.0.so.0

---Type to continue, or q to quit---
#42 0xb5466718 in g_main_context_dispatch () from /usr/lib/libglib-2.0.so.0
#43 0xb5469dc3 in ?? () from /usr/lib/libglib-2.0.so.0
#44 0xb546a2e2 in g_main_loop_run () from /usr/lib/libglib-2.0.so.0
#45 0xb58903a9 in gtk_main () from /usr/lib/libgtk-x11-2.0.so.0
#46 0xb6df7e95 in wxEventLoop::Run () from /usr/lib/libwx_gtk2u_core-2.8.so.0
#47 0xb6e8e5ce in wxAppBase::MainLoop () from /usr/lib/libwx_gtk2u_core-2.8.so.0
#48 0xb6e8e1a1 in wxAppBase::OnRun () from /usr/lib/libwx_gtk2u_core-2.8.so.0
#49 0xb6bbaa7a in wxEntry () from /usr/lib/libwx_baseu-2.8.so.0
#50 0xb6bbac77 in wxEntry () from /usr/lib/libwx_baseu-2.8.so.0
#51 0x08051590 in main (argc=-1216295736, argv=0x8c2d57c)

at /home/mine/ros/pkgs/visualization/rviz/src/rviz/visualizer_app.cpp:230

}}}

trac data:

• Owner: jfaust
• Reporter: jfaust
• Reported at: Thu Sep 17 13:16:11 2009
• URL: http://code.ros.org/trac/ros-pkg/ticket/2829

[hershwg]

[jfaust] r24139

[hershwg]

Milestone visualization_common-0.9 deleted