.
Thread 3 (Thread 0x7f4be727d700 (LWP 23937)):
#0  0x00007f4bf9a51773 in poll () from /lib/x86_64-linux-gnu/libc.so.6
No symbol table info available.
#1  0x00007f4bfab2b078 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
No symbol table info available.
#2  0x00007f4bfab2b8a2 in g_main_loop_run () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
No symbol table info available.
#3  0x00007f4bf81287b6 in ?? () from /usr/lib/x86_64-linux-gnu/libgio-2.0.so.0
No symbol table info available.
#4  0x00007f4bfab50626 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
No symbol table info available.
#5  0x00007f4befde456c in ?? () from /usr/lib/nvidia-current/libGL.so.1
No symbol table info available.
#6  0x00007f4bfa6c7edc in start_thread () from /lib/x86_64-linux-gnu/libpthread.so.0
No symbol table info available.
#7  0x00007f4bf9a5d89d in clone () from /lib/x86_64-linux-gnu/libc.so.6
No symbol table info available.
#8  0x0000000000000000 in ?? ()
No symbol table info available.
.
Thread 2 (Thread 0x7f4be7a7e700 (LWP 23936)):
#0  0x00007f4bf9a51773 in poll () from /lib/x86_64-linux-gnu/libc.so.6
No symbol table info available.
#1  0x00007f4bfab2b078 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
No symbol table info available.
#2  0x00007f4bfab2b8a2 in g_main_loop_run () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
No symbol table info available.
#3  0x00007f4be7a83c7b in ?? () from /usr/lib/gio/modules/libdconfsettings.so
No symbol table info available.
#4  0x00007f4bfab50626 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
No symbol table info available.
#5  0x00007f4befde456c in ?? () from /usr/lib/nvidia-current/libGL.so.1
No symbol table info available.
#6  0x00007f4bfa6c7edc in start_thread () from /lib/x86_64-linux-gnu/libpthread.so.0
No symbol table info available.
#7  0x00007f4bf9a5d89d in clone () from /lib/x86_64-linux-gnu/libc.so.6
No symbol table info available.
#8  0x0000000000000000 in ?? ()
No symbol table info available.
.
Thread 1 (Thread 0x7f4bfc8459c0 (LWP 23933)):
#0  0x00007f4bea730642 in UnityScreen::~UnityScreen() () from /usr/lib/compiz/libunityshell.so
No symbol table info available.
#1  0x00007f4bea730cb9 in UnityScreen::~UnityScreen() () from /usr/lib/compiz/libunityshell.so
No symbol table info available.
#2  0x00007f4bea73d151 in PluginClassHandler<UnityScreen, CompScreen, 0>::get(CompScreen*) () from /usr/lib/compiz/libunityshell.so
No symbol table info available.
#3  0x00007f4bea73d2dc in CompPlugin::VTableForScreenAndWindow<UnityScreen, UnityWindow>::initScreen(CompScreen*) () from /usr/lib/compiz/libunityshell.so
No symbol table info available.
#4  0x000000000045110a in CompManager::initPlugin(CompPlugin*) ()
No symbol table info available.
#5  0x0000000000452cce in CompPlugin::push(CompPlugin*) ()
No symbol table info available.
#6  0x000000000042e55f in PrivateScreen::updatePlugins() ()
No symbol table info available.
#7  0x000000000042e908 in PrivateScreen::processEvents() ()
No symbol table info available.
#8  0x0000000000455f31 in CompEventSource::callback() ()
No symbol table info available.
#9  0x00007f4bfb0249df in Glib::Source::dispatch_vfunc(_GSource*, int (*)(void*), void*) () from /usr/lib/libglibmm-2.4.so.1
No symbol table info available.
#10 0x00007f4bfab2ab6d in g_main_context_dispatch () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
No symbol table info available.
#11 0x00007f4bfab2b368 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
No symbol table info available.
#12 0x00007f4bfab2b8a2 in g_main_loop_run () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
No symbol table info available.
#13 0x000000000042b846 in CompScreen::eventLoop() ()
No symbol table info available.
#14 0x000000000041f61a in main ()
No symbol table info available.