. Thread 4 (Thread 0x7f5664b02700 (LWP 24078)): #0 0x00007f566c200303 in poll () from /lib/x86_64-linux-gnu/libc.so.6 No symbol table info available. #1 0x00007f566aa60d84 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0 No symbol table info available. #2 0x00007f566aa611e2 in g_main_loop_run () from /lib/x86_64-linux-gnu/libglib-2.0.so.0 No symbol table info available. #3 0x00007f56668874a6 in ?? () from /usr/lib/x86_64-linux-gnu/libgio-2.0.so.0 No symbol table info available. #4 0x00007f566aa84645 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0 No symbol table info available. #5 0x00007f566bf02e9a in start_thread () from /lib/x86_64-linux-gnu/libpthread.so.0 No symbol table info available. #6 0x00007f566c20bcbd 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 3 (Thread 0x7f5665938700 (LWP 24076)): #0 0x00007f566c200303 in poll () from /lib/x86_64-linux-gnu/libc.so.6 No symbol table info available. #1 0x00007f566aa60d84 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0 No symbol table info available. #2 0x00007f566aa60ea4 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0 No symbol table info available. #3 0x00007f566617b4ad in ?? () from /usr/lib/x86_64-linux-gnu/gio/modules/libdconfsettings.so No symbol table info available. #4 0x00007f566aa84645 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0 No symbol table info available. #5 0x00007f566bf02e9a in start_thread () from /lib/x86_64-linux-gnu/libpthread.so.0 No symbol table info available. #6 0x00007f566c20bcbd 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 0x7f5668a2e700 (LWP 24073)): #0 0x00007f566c200303 in poll () from /lib/x86_64-linux-gnu/libc.so.6 No symbol table info available. #1 0x00007f566aa60d84 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0 No symbol table info available. #2 0x00007f566aa60ea4 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0 No symbol table info available. #3 0x00007f566aa60ef1 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0 No symbol table info available. #4 0x00007f566aa84645 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0 No symbol table info available. #5 0x00007f566bf02e9a in start_thread () from /lib/x86_64-linux-gnu/libpthread.so.0 No symbol table info available. #6 0x00007f566c20bcbd 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 0x7f566cea3780 (LWP 24072)): #0 0x00007f5669ac469c in g_type_check_instance_is_a () from /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0 No symbol table info available. #1 0x00007f565bc713d6 in unity::launcher::BamfLauncherIcon::UpdateIconGeometries(std::vector, std::allocator > >) () from /usr/lib/compiz/libunityshell.so No symbol table info available. #2 0x00007f565bc72002 in unity::launcher::BamfLauncherIcon::UpdateDesktopQuickList() () from /usr/lib/compiz/libunityshell.so No symbol table info available. #3 0x0000000000000000 in ?? () No symbol table info available.