.
Thread 4 (Thread 2852):
#0  0x00007f6db52c2093 in poll () from /lib/x86_64-linux-gnu/libc.so.6
No symbol table info available.
#1  0x00007f6db57f11c8 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
No symbol table info available.
#2  0x00007f6db57f19f2 in g_main_loop_run () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
No symbol table info available.
#3  0x00007f6d9b1dba0b in ?? () from /usr/lib/gio/modules/libdconfsettings.so
No symbol table info available.
#4  0x00007f6db5816506 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
No symbol table info available.
#5  0x00007f6db5595d8c in start_thread () from /lib/x86_64-linux-gnu/libpthread.so.0
No symbol table info available.
#6  0x00007f6db52cf1dd 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 2854):
#0  0x00007f6db52c2093 in poll () from /lib/x86_64-linux-gnu/libc.so.6
No symbol table info available.
#1  0x00007f6db57f11c8 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
No symbol table info available.
#2  0x00007f6db57f19f2 in g_main_loop_run () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
No symbol table info available.
#3  0x00007f6db5fb3b36 in ?? () from /usr/lib/x86_64-linux-gnu/libgio-2.0.so.0
No symbol table info available.
#4  0x00007f6db5816506 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
No symbol table info available.
#5  0x00007f6db5595d8c in start_thread () from /lib/x86_64-linux-gnu/libpthread.so.0
No symbol table info available.
#6  0x00007f6db52cf1dd 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 2855):
#0  0x00007f6db559af2b in pthread_cond_timedwait@@GLIBC_2.3.2 () from /lib/x86_64-linux-gnu/libpthread.so.0
No symbol table info available.
#1  0x00007f6db5a9e4d5 in ?? () from /usr/lib/x86_64-linux-gnu/libgthread-2.0.so.0
No symbol table info available.
#2  0x00007f6db57c5eef in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
No symbol table info available.
#3  0x00007f6db57c6741 in g_async_queue_timed_pop () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
No symbol table info available.
#4  0x00007f6db5818947 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
No symbol table info available.
#5  0x00007f6db5816506 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
No symbol table info available.
#6  0x00007f6db5595d8c in start_thread () from /lib/x86_64-linux-gnu/libpthread.so.0
No symbol table info available.
#7  0x00007f6db52cf1dd 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 2851):
#0  0x00007f6da51206ea in ?? () from /usr/lib/control-center-1/panels/libbluetooth.so
No symbol table info available.
#1  0x00007f6db5cafe84 in g_closure_invoke () from /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0
No symbol table info available.
#2  0x00007f6db5cc30fb in ?? () from /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0
No symbol table info available.
#3  0x00007f6db5ccc707 in g_signal_emit_valist () from /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0
No symbol table info available.
#4  0x00007f6db5ccc8d2 in g_signal_emit () from /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0
No symbol table info available.
#5  0x00007f6db5cb3057 in ?? () from /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0
No symbol table info available.
#6  0x00007f6db5cb53f0 in g_object_notify () from /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0
No symbol table info available.
#7  0x00007f6da4f0d3d2 in ?? () from /usr/lib/libgnome-bluetooth.so.8
No symbol table info available.
#8  0x00007f6db5cafe84 in g_closure_invoke () from /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0
No symbol table info available.
#9  0x00007f6db5cc30fb in ?? () from /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0
No symbol table info available.
#10 0x00007f6db5ccc707 in g_signal_emit_valist () from /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0
No symbol table info available.
#11 0x00007f6db5ccc8d2 in g_signal_emit () from /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0
No symbol table info available.
#12 0x00007f6db70c4fc4 in ?? () from /usr/lib/libgtk-3.so.0
No symbol table info available.
#13 0x00007f6db70c86e0 in ?? () from /usr/lib/libgtk-3.so.0
No symbol table info available.
#14 0x00007f6db6f9d073 in ?? () from /usr/lib/libgtk-3.so.0
No symbol table info available.
#15 0x00007f6db5cafe84 in g_closure_invoke () from /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0
No symbol table info available.
#16 0x00007f6db5cc2f34 in ?? () from /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0
No symbol table info available.
#17 0x00007f6db5ccc596 in g_signal_emit_valist () from /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0
No symbol table info available.
#18 0x00007f6db5ccc8d2 in g_signal_emit () from /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0
No symbol table info available.
#19 0x00007f6db70e2ca9 in ?? () from /usr/lib/libgtk-3.so.0
No symbol table info available.
#20 0x00007f6db6f9c88a in gtk_propagate_event () from /usr/lib/libgtk-3.so.0
No symbol table info available.
#21 0x00007f6db6f9cc4b in gtk_main_do_event () from /usr/lib/libgtk-3.so.0
No symbol table info available.
#22 0x00007f6db6bfd472 in ?? () from /usr/lib/libgdk-3.so.0
No symbol table info available.
#23 0x00007f6db57f0cbd in g_main_context_dispatch () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
No symbol table info available.
#24 0x00007f6db57f14b8 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
No symbol table info available.
#25 0x00007f6db57f19f2 in g_main_loop_run () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
No symbol table info available.
#26 0x00007f6db6f9c0ad in gtk_main () from /usr/lib/libgtk-3.so.0
No symbol table info available.
#27 0x00007f6db5f8a71e in g_application_run () from /usr/lib/x86_64-linux-gnu/libgio-2.0.so.0
No symbol table info available.
#28 0x00007f6db78c63d0 in main ()
No symbol table info available.