. Thread 3 (Thread 1471): #0 0x00007ff02a870f03 in poll () from /lib/x86_64-linux-gnu/libc.so.6 No symbol table info available. #1 0x00007ff02bbac104 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0 No symbol table info available. #2 0x00007ff02bbac9f2 in g_main_loop_run () from /lib/x86_64-linux-gnu/libglib-2.0.so.0 No symbol table info available. #3 0x00007ff0149fe69b in ?? () from /usr/lib/gio/modules/libdconfsettings.so No symbol table info available. #4 0x00007ff02bbd33e4 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0 No symbol table info available. #5 0x00007ff02b4d7d8c in start_thread () from /lib/x86_64-linux-gnu/libpthread.so.0 No symbol table info available. #6 0x00007ff02a87e04d 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 1390): #0 0x00007ff02a870f03 in poll () from /lib/x86_64-linux-gnu/libc.so.6 No symbol table info available. #1 0x00007ff02bbac104 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0 No symbol table info available. #2 0x00007ff02bbac9f2 in g_main_loop_run () from /lib/x86_64-linux-gnu/libglib-2.0.so.0 No symbol table info available. #3 0x00007ff02cbd6d44 in ?? () from /usr/lib/x86_64-linux-gnu/libgio-2.0.so.0 No symbol table info available. #4 0x00007ff02bbd33e4 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0 No symbol table info available. #5 0x00007ff02b4d7d8c in start_thread () from /lib/x86_64-linux-gnu/libpthread.so.0 No symbol table info available. #6 0x00007ff02a87e04d 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 1382): #0 0x00007ff01b20e191 in nux::WindowCompositor::RenderTopViews(bool, std::list, std::allocator > >&, bool, bool) () from /usr/lib/libnux-0.9.so.0 No symbol table info available. #1 0x00007ff01b20f065 in nux::WindowCompositor::Draw(bool, bool) () from /usr/lib/libnux-0.9.so.0 No symbol table info available. #2 0x00007ff01b21276c in nux::WindowThread::RenderInterfaceFromForeignCmd(nux::Rect*) () from /usr/lib/libnux-0.9.so.0 No symbol table info available. #3 0x00007ff01b57c961 in UnityScreen::paintDisplay(CompRegion const&) () from /usr/lib/compiz/libunityshell.so No symbol table info available. #4 0x00007ff01b57ea0f in UnityWindow::glDraw(GLMatrix const&, GLFragment::Attrib&, CompRegion const&, unsigned int) () from /usr/lib/compiz/libunityshell.so No symbol table info available. #5 0x00007ff026852dc0 in GLWindow::glDraw(GLMatrix const&, GLFragment::Attrib&, CompRegion const&, unsigned int) () from /usr/lib/compiz/libopengl.so No symbol table info available. #6 0x00007ff026852c75 in GLWindow::glPaint(GLWindowPaintAttrib const&, GLMatrix const&, CompRegion const&, unsigned int) () from /usr/lib/compiz/libopengl.so No symbol table info available. #7 0x00007ff01d914408 in WallWindow::glPaint(GLWindowPaintAttrib const&, GLMatrix const&, CompRegion const&, unsigned int) () from /usr/lib/compiz/libwall.so No symbol table info available. #8 0x00007ff026852c10 in GLWindow::glPaint(GLWindowPaintAttrib const&, GLMatrix const&, CompRegion const&, unsigned int) () from /usr/lib/compiz/libopengl.so No symbol table info available. #9 0x00007ff01be27d05 in FadeWindow::glPaint(GLWindowPaintAttrib const&, GLMatrix const&, CompRegion const&, unsigned int) () from /usr/lib/compiz/libfade.so No symbol table info available. #10 0x00007ff026852c10 in GLWindow::glPaint(GLWindowPaintAttrib const&, GLMatrix const&, CompRegion const&, unsigned int) () from /usr/lib/compiz/libopengl.so No symbol table info available. #11 0x00007ff026853505 in PrivateGLScreen::paintOutputRegion(GLMatrix const&, CompRegion const&, CompOutput*, unsigned int) () from /usr/lib/compiz/libopengl.so No symbol table info available. #12 0x00007ff0268539b7 in GLScreen::glPaintOutput(GLScreenPaintAttrib const&, GLMatrix const&, CompRegion const&, CompOutput*, unsigned int) () from /usr/lib/compiz/libopengl.so No symbol table info available. #13 0x00007ff01d913be2 in WallScreen::glPaintOutput(GLScreenPaintAttrib const&, GLMatrix const&, CompRegion const&, CompOutput*, unsigned int) () from /usr/lib/compiz/libwall.so No symbol table info available. #14 0x00007ff0268538ed in GLScreen::glPaintOutput(GLScreenPaintAttrib const&, GLMatrix const&, CompRegion const&, CompOutput*, unsigned int) () from /usr/lib/compiz/libopengl.so No symbol table info available. #15 0x00007ff01b57c9ce in UnityScreen::glPaintOutput(GLScreenPaintAttrib const&, GLMatrix const&, CompRegion const&, CompOutput*, unsigned int) () from /usr/lib/compiz/libunityshell.so No symbol table info available. #16 0x00007ff0268538ed in GLScreen::glPaintOutput(GLScreenPaintAttrib const&, GLMatrix const&, CompRegion const&, CompOutput*, unsigned int) () from /usr/lib/compiz/libopengl.so No symbol table info available. #17 0x00007ff026859811 in PrivateGLScreen::paintOutputs(std::list >&, unsigned int, CompRegion const&) () from /usr/lib/compiz/libopengl.so No symbol table info available. #18 0x00007ff026a84d59 in CompositeScreen::paint(std::list >&, unsigned int) () from /usr/lib/compiz/libcomposite.so No symbol table info available. #19 0x00007ff026a86bb0 in CompositeScreen::handlePaintTimeout() () from /usr/lib/compiz/libcomposite.so No symbol table info available. #20 0x0000000000421c2f in CompTimeoutSource::callback() () No symbol table info available. #21 0x000000000042169d in CompTimeoutSource::dispatch(sigc::slot_base*) () No symbol table info available. #22 0x00007ff02c6fbe1f in Glib::Source::dispatch_vfunc(_GSource*, int (*)(void*), void*) () from /usr/lib/libglibmm-2.4.so.1 No symbol table info available. #23 0x00007ff02bbabbcd in g_main_context_dispatch () from /lib/x86_64-linux-gnu/libglib-2.0.so.0 No symbol table info available. #24 0x00007ff02bbac3a8 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0 No symbol table info available. #25 0x00007ff02bbac9f2 in g_main_loop_run () from /lib/x86_64-linux-gnu/libglib-2.0.so.0 No symbol table info available. #26 0x000000000042a32a in CompScreen::eventLoop() () No symbol table info available. #27 0x00000000004231a0 in main () No symbol table info available.