. Thread 3 (Thread 0x7f5816b4a700 (LWP 2829)): #0 0x00007f58299ae433 in poll () from /lib/x86_64-linux-gnu/libc.so.6 No symbol table info available. #1 0x00007f582aa87ac8 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0 No symbol table info available. #2 0x00007f582aa882f2 in g_main_loop_run () from /lib/x86_64-linux-gnu/libglib-2.0.so.0 No symbol table info available. #3 0x00007f5828089516 in ?? () from /usr/lib/x86_64-linux-gnu/libgio-2.0.so.0 No symbol table info available. #4 0x00007f582aaad086 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0 No symbol table info available. #5 0x00007f582a3a0edc in start_thread () from /lib/x86_64-linux-gnu/libpthread.so.0 No symbol table info available. #6 0x00007f58299ba55d in clone () from /lib/x86_64-linux-gnu/libc.so.6 No symbol table info available. #7 0x0000000000000000 in ?? () No symbol table info available. . Thread 2 (Thread 0x7f581734b700 (LWP 2828)): #0 0x00007f58299ae433 in poll () from /lib/x86_64-linux-gnu/libc.so.6 No symbol table info available. #1 0x00007f582aa87ac8 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0 No symbol table info available. #2 0x00007f582aa882f2 in g_main_loop_run () from /lib/x86_64-linux-gnu/libglib-2.0.so.0 No symbol table info available. #3 0x00007f5817350a0b in ?? () from /usr/lib/gio/modules/libdconfsettings.so No symbol table info available. #4 0x00007f582aaad086 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0 No symbol table info available. #5 0x00007f582a3a0edc in start_thread () from /lib/x86_64-linux-gnu/libpthread.so.0 No symbol table info available. #6 0x00007f58299ba55d in clone () from /lib/x86_64-linux-gnu/libc.so.6 No symbol table info available. #7 0x0000000000000000 in ?? () No symbol table info available. . Thread 1 (Thread 0x7f582c79c9c0 (LWP 2827)): #0 0x00007f5819bc4055 in SimpleLauncherIcon::ReloadIcon() () from /usr/lib/compiz/libunityshell.so No symbol table info available. #1 0x00007f58276dbe94 in g_closure_invoke () from /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0 No symbol table info available. #2 0x00007f58276ef13b in ?? () from /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0 No symbol table info available. #3 0x00007f58276f8757 in g_signal_emit_valist () from /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0 No symbol table info available. #4 0x00007f58276f8922 in g_signal_emit () from /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0 No symbol table info available. #5 0x00007f582b2d5832 in ?? () from /usr/lib/libgtk-3.so.0 No symbol table info available. #6 0x00007f582b2d5906 in ?? () from /usr/lib/libgtk-3.so.0 No symbol table info available. #7 0x00007f5819b63c77 in LauncherIcon::TextureFromSpecificGtkTheme(_GtkIconTheme*, char const*, int, bool, bool) () from /usr/lib/compiz/libunityshell.so No symbol table info available. #8 0x00007f5819b63db0 in LauncherIcon::TextureFromGtkTheme(char const*, int, bool) () from /usr/lib/compiz/libunityshell.so No symbol table info available. #9 0x00007f5819bc4a47 in SimpleLauncherIcon::GetTextureForSize(int) () from /usr/lib/compiz/libunityshell.so No symbol table info available. #10 0x00007f5819b48c91 in unity::ui::IconRenderer::RenderIcon(nux::GraphicsEngine&, unity::ui::RenderArg const&, nux::Rect const&, nux::Rect const&) () from /usr/lib/compiz/libunityshell.so No symbol table info available. #11 0x00007f5819b58327 in Launcher::DrawContent(nux::GraphicsEngine&, bool) () from /usr/lib/compiz/libunityshell.so No symbol table info available. #12 0x00007f58197775b8 in nux::View::ProcessDraw(nux::GraphicsEngine&, bool) () from /usr/lib/libnux-1.0.so.0 No symbol table info available. #13 0x00007f581977d4f7 in nux::Layout::ProcessDraw(nux::GraphicsEngine&, bool) () from /usr/lib/libnux-1.0.so.0 No symbol table info available. #14 0x00007f5819743dd2 in nux::BaseWindow::DrawContent(nux::GraphicsEngine&, bool) () from /usr/lib/libnux-1.0.so.0 No symbol table info available. #15 0x00007f58197775b8 in nux::View::ProcessDraw(nux::GraphicsEngine&, bool) () from /usr/lib/libnux-1.0.so.0 No symbol table info available. #16 0x00007f58197f1d59 in nux::WindowCompositor::RenderTopViewContent(nux::BaseWindow*, bool) () from /usr/lib/libnux-1.0.so.0 No symbol table info available. #17 0x00007f58197f52e2 in nux::WindowCompositor::RenderTopViews(bool, std::list, std::allocator > >&, bool) () from /usr/lib/libnux-1.0.so.0 No symbol table info available. #18 0x00007f58197f617a in nux::WindowCompositor::Draw(bool, bool) () from /usr/lib/libnux-1.0.so.0 No symbol table info available. #19 0x00007f58197fd69e in nux::WindowThread::RenderInterfaceFromForeignCmd(nux::Rect*) () from /usr/lib/libnux-1.0.so.0 No symbol table info available. #20 0x00007f5819be9013 in UnityScreen::paintDisplay(CompRegion const&, GLMatrix const&, unsigned int) () from /usr/lib/compiz/libunityshell.so No symbol table info available. #21 0x00007f5819be95df in UnityWindow::glDraw(GLMatrix const&, GLFragment::Attrib&, CompRegion const&, unsigned int) () from /usr/lib/compiz/libunityshell.so No symbol table info available. #22 0x00007f581ffed697 in GLWindow::glDraw(GLMatrix const&, GLFragment::Attrib&, CompRegion const&, unsigned int) () from /usr/lib/compiz/libopengl.so No symbol table info available. #23 0x00007f581ffedabd in GLWindow::glPaint(GLWindowPaintAttrib const&, GLMatrix const&, CompRegion const&, unsigned int) () from /usr/lib/compiz/libopengl.so No symbol table info available. #24 0x00007f581b1d4c68 in WallWindow::glPaint(GLWindowPaintAttrib const&, GLMatrix const&, CompRegion const&, unsigned int) () from /usr/lib/compiz/libwall.so No symbol table info available. #25 0x00007f581ffeda5f in GLWindow::glPaint(GLWindowPaintAttrib const&, GLMatrix const&, CompRegion const&, unsigned int) () from /usr/lib/compiz/libopengl.so No symbol table info available. #26 0x00007f581a4ac635 in FadeWindow::glPaint(GLWindowPaintAttrib const&, GLMatrix const&, CompRegion const&, unsigned int) () from /usr/lib/compiz/libfade.so No symbol table info available. #27 0x00007f581ffeda5f in GLWindow::glPaint(GLWindowPaintAttrib const&, GLMatrix const&, CompRegion const&, unsigned int) () from /usr/lib/compiz/libopengl.so No symbol table info available. #28 0x00007f581ffedf95 in PrivateGLScreen::paintOutputRegion(GLMatrix const&, CompRegion const&, CompOutput*, unsigned int) () from /usr/lib/compiz/libopengl.so No symbol table info available. #29 0x00007f581ffee497 in GLScreen::glPaintOutput(GLScreenPaintAttrib const&, GLMatrix const&, CompRegion const&, CompOutput*, unsigned int) () from /usr/lib/compiz/libopengl.so No symbol table info available. #30 0x00007f581ffee3cc in GLScreen::glPaintOutput(GLScreenPaintAttrib const&, GLMatrix const&, CompRegion const&, CompOutput*, unsigned int) () from /usr/lib/compiz/libopengl.so No symbol table info available. #31 0x00007f581b1ce802 in WallScreen::glPaintOutput(GLScreenPaintAttrib const&, GLMatrix const&, CompRegion const&, CompOutput*, unsigned int) () from /usr/lib/compiz/libwall.so No symbol table info available. #32 0x00007f581ffee3cc in GLScreen::glPaintOutput(GLScreenPaintAttrib const&, GLMatrix const&, CompRegion const&, CompOutput*, unsigned int) () from /usr/lib/compiz/libopengl.so No symbol table info available. #33 0x00007f5819be978e in UnityScreen::glPaintOutput(GLScreenPaintAttrib const&, GLMatrix const&, CompRegion const&, CompOutput*, unsigned int) () from /usr/lib/compiz/libunityshell.so No symbol table info available. #34 0x00007f581ffee3cc in GLScreen::glPaintOutput(GLScreenPaintAttrib const&, GLMatrix const&, CompRegion const&, CompOutput*, unsigned int) () from /usr/lib/compiz/libopengl.so No symbol table info available. #35 0x00007f581fff011c in PrivateGLScreen::paintOutputs(std::list >&, unsigned int, CompRegion const&) () from /usr/lib/compiz/libopengl.so No symbol table info available. #36 0x00007f5820210d29 in CompositeScreen::paint(std::list >&, unsigned int) () from /usr/lib/compiz/libcomposite.so No symbol table info available. #37 0x00007f58202122ef in CompositeScreen::handlePaintTimeout() () from /usr/lib/compiz/libcomposite.so No symbol table info available. #38 0x000000000042210b in CompTimer::triggerCallback() () No symbol table info available. #39 0x0000000000422242 in CompTimeoutSource::callback() () No symbol table info available. #40 0x000000000042173d in CompTimeoutSource::dispatch(sigc::slot_base*) () No symbol table info available. #41 0x00007f582af7e8af in Glib::Source::dispatch_vfunc(_GSource*, int (*)(void*), void*) () from /usr/lib/libglibmm-2.4.so.1 No symbol table info available. #42 0x00007f582aa875bd in g_main_context_dispatch () from /lib/x86_64-linux-gnu/libglib-2.0.so.0 No symbol table info available. #43 0x00007f582aa87db8 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0 No symbol table info available. #44 0x00007f582aa882f2 in g_main_loop_run () from /lib/x86_64-linux-gnu/libglib-2.0.so.0 No symbol table info available. #45 0x000000000042b5fa in CompScreen::eventLoop() () No symbol table info available. #46 0x000000000041f5fa in main () No symbol table info available.