. Thread 4 (Thread 1295): #0 0x00007f6d8e444093 in poll () from /lib/x86_64-linux-gnu/libc.so.6 No symbol table info available. #1 0x00007f6d8e7551c8 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0 No symbol table info available. #2 0x00007f6d8e7559f2 in g_main_loop_run () from /lib/x86_64-linux-gnu/libglib-2.0.so.0 No symbol table info available. #3 0x00007f6d8f11bb36 in ?? () from /usr/lib/x86_64-linux-gnu/libgio-2.0.so.0 No symbol table info available. #4 0x00007f6d8e77a506 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0 No symbol table info available. #5 0x00007f6d8f5acd8c in start_thread () from /lib/x86_64-linux-gnu/libpthread.so.0 No symbol table info available. #6 0x00007f6d8e4511dd 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 1294): #0 0x00007f6d8f5b1f2b in pthread_cond_timedwait@@GLIBC_2.3.2 () from /lib/x86_64-linux-gnu/libpthread.so.0 No symbol table info available. #1 0x00007f6d8ea024d5 in ?? () from /usr/lib/x86_64-linux-gnu/libgthread-2.0.so.0 No symbol table info available. #2 0x00007f6d8e729eef in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0 No symbol table info available. #3 0x00007f6d8e72a741 in g_async_queue_timed_pop () from /lib/x86_64-linux-gnu/libglib-2.0.so.0 No symbol table info available. #4 0x00007f6d8e77c947 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0 No symbol table info available. #5 0x00007f6d8e77a506 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0 No symbol table info available. #6 0x00007f6d8f5acd8c in start_thread () from /lib/x86_64-linux-gnu/libpthread.so.0 No symbol table info available. #7 0x00007f6d8e4511dd 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 1296): #0 0x00007f6d8e448919 in writev () from /lib/x86_64-linux-gnu/libc.so.6 No symbol table info available. #1 0x00007f6d8a5995c9 in ?? () from /usr/lib/x86_64-linux-gnu/libxcb.so.1 No symbol table info available. #2 0x00007f6d8a599a3f in ?? () from /usr/lib/x86_64-linux-gnu/libxcb.so.1 No symbol table info available. #3 0x00007f6d8a599ac4 in xcb_writev () from /usr/lib/x86_64-linux-gnu/libxcb.so.1 No symbol table info available. #4 0x00007f6d8dbdf3a7 in _XSend () from /usr/lib/x86_64-linux-gnu/libX11.so.6 No symbol table info available. #5 0x00007f6d8dbdf8fb in _XReply () from /usr/lib/x86_64-linux-gnu/libX11.so.6 No symbol table info available. #6 0x00007f6d8dc2f1e1 in XkbGetControls () from /usr/lib/x86_64-linux-gnu/libX11.so.6 No symbol table info available. #7 0x00007f6d7e1495c7 in ?? () from /usr/lib/gnome-settings-daemon-3.0/liba11y-keyboard.so No symbol table info available. #8 0x00007f6d7e1496c0 in ?? () from /usr/lib/gnome-settings-daemon-3.0/liba11y-keyboard.so No symbol table info available. #9 0x00007f6d7e149c5c in ?? () from /usr/lib/gnome-settings-daemon-3.0/liba11y-keyboard.so No symbol table info available. #10 0x00007f6d8ee17e84 in g_closure_invoke () from /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0 No symbol table info available. #11 0x00007f6d8ee2b0fb in ?? () from /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0 No symbol table info available. #12 0x00007f6d8ee34707 in g_signal_emit_valist () from /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0 No symbol table info available. #13 0x00007f6d8ee348d2 in g_signal_emit () from /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0 No symbol table info available. #14 0x00007f6d8f0f91b1 in ?? () from /usr/lib/x86_64-linux-gnu/libgio-2.0.so.0 No symbol table info available. #15 0x00007f6d8bed1a14 in ffi_call_unix64 () from /usr/lib/x86_64-linux-gnu/libffi.so.6 No symbol table info available. #16 0x00007f6d8bed1435 in ffi_call () from /usr/lib/x86_64-linux-gnu/libffi.so.6 No symbol table info available. #17 0x00007f6d8ee18347 in g_cclosure_marshal_generic () from /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0 No symbol table info available. #18 0x00007f6d8ee17e84 in g_closure_invoke () from /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0 No symbol table info available. #19 0x00007f6d8ee2af34 in ?? () from /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0 No symbol table info available. #20 0x00007f6d8ee34596 in g_signal_emit_valist () from /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0 No symbol table info available. #21 0x00007f6d8ee348d2 in g_signal_emit () from /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0 No symbol table info available. #22 0x00007f6d8f0f9e97 in ?? () from /usr/lib/x86_64-linux-gnu/libgio-2.0.so.0 No symbol table info available. #23 0x00007f6d8f0f6cfb in g_settings_backend_changed_tree () from /usr/lib/x86_64-linux-gnu/libgio-2.0.so.0 No symbol table info available. #24 0x00007f6d8613472c in ?? () from /usr/lib/gio/modules/libdconfsettings.so No symbol table info available. #25 0x00007f6d8f0c56d1 in g_simple_async_result_complete () from /usr/lib/x86_64-linux-gnu/libgio-2.0.so.0 No symbol table info available. #26 0x00007f6d8f10d604 in ?? () from /usr/lib/x86_64-linux-gnu/libgio-2.0.so.0 No symbol table info available. #27 0x00007f6d8f0c56d1 in g_simple_async_result_complete () from /usr/lib/x86_64-linux-gnu/libgio-2.0.so.0 No symbol table info available. #28 0x00007f6d8f0c580c in ?? () from /usr/lib/x86_64-linux-gnu/libgio-2.0.so.0 No symbol table info available. #29 0x00007f6d8e754cbd in g_main_context_dispatch () from /lib/x86_64-linux-gnu/libglib-2.0.so.0 No symbol table info available. #30 0x00007f6d8e7554b8 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0 No symbol table info available. #31 0x00007f6d8e7559f2 in g_main_loop_run () from /lib/x86_64-linux-gnu/libglib-2.0.so.0 No symbol table info available. #32 0x00007f6d86133a0b in ?? () from /usr/lib/gio/modules/libdconfsettings.so No symbol table info available. #33 0x00007f6d8e77a506 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0 No symbol table info available. #34 0x00007f6d8f5acd8c in start_thread () from /lib/x86_64-linux-gnu/libpthread.so.0 No symbol table info available. #35 0x00007f6d8e4511dd in clone () from /lib/x86_64-linux-gnu/libc.so.6 No symbol table info available. #36 0x0000000000000000 in ?? () No symbol table info available. . Thread 1 (Thread 1280): #0 0x00007f6d8e39ec55 in raise () from /lib/x86_64-linux-gnu/libc.so.6 No symbol table info available. #1 0x00007f6d8e3a2a06 in abort () from /lib/x86_64-linux-gnu/libc.so.6 No symbol table info available. #2 0x00007f6d8e397715 in __assert_fail () from /lib/x86_64-linux-gnu/libc.so.6 No symbol table info available. #3 0x00007f6d8dbdedae in ?? () from /usr/lib/x86_64-linux-gnu/libX11.so.6 No symbol table info available. #4 0x00007f6d8dbdfaec in _XReply () from /usr/lib/x86_64-linux-gnu/libX11.so.6 No symbol table info available. #5 0x00007f6d8dbdb273 in XSync () from /usr/lib/x86_64-linux-gnu/libX11.so.6 No symbol table info available. #6 0x00007f6d7e14b243 in gsd_a11y_keyboard_manager_stop () from /usr/lib/gnome-settings-daemon-3.0/liba11y-keyboard.so No symbol table info available. #7 0x00000000004050ed in gnome_settings_plugin_info_deactivate () No symbol table info available. #8 0x0000000000403f05 in _start () No symbol table info available.