.
Thread 4 (Thread 0x7fe455a64700 (LWP 3725)):
#0  0x00007fe46242e901 in __GI___poll (fds=0x138bd00, nfds=1, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29
        resultvar = 18446744073709551100
        sc_cancel_oldtype = 0
#1  0x00007fe461367169 in  () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007fe46136727c in g_main_context_iteration () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fe455a6c46d in  () at /usr/lib/x86_64-linux-gnu/gio/modules/libdconfsettings.so
#4  0x00007fe46138e645 in  () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007fe4632b37fc in start_thread (arg=0x7fe455a64700) at pthread_create.c:465
        pd = 0x7fe455a64700
        now = <optimized out>
        unwind_buf = {cancel_jmp_buf = {{jmp_buf = {140618666231552, -6941553811615173775, 140728376721630, 140728376721631, 140618666231552, 140618666232256, 6945129906624476017, 6945223253705831281}, mask_was_saved = 0}}, priv = {pad = {0x0, 0x0, 0x0, 0x0}, data = {prev = 0x0, cleanup = 0x0, canceltype = 0}}}
        not_first_call = <optimized out>
        pagesize_m1 = <optimized out>
        sp = <optimized out>
        freesize = <optimized out>
        __PRETTY_FUNCTION__ = "start_thread"
#6  0x00007fe46243ab0f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95
.
Thread 3 (Thread 0x7fe45659a700 (LWP 3724)):
#0  0x00007fe46242e901 in __GI___poll (fds=0x133f070, nfds=2, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29
        resultvar = 18446744073709551100
        sc_cancel_oldtype = 0
#1  0x00007fe461367169 in  () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007fe461367502 in g_main_loop_run () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fe460c41b26 in  () at /usr/lib/x86_64-linux-gnu/libgio-2.0.so.0
#4  0x00007fe46138e645 in  () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007fe4632b37fc in start_thread (arg=0x7fe45659a700) at pthread_create.c:465
        pd = 0x7fe45659a700
        now = <optimized out>
        unwind_buf = {cancel_jmp_buf = {{jmp_buf = {140618677987072, -6941553811615173775, 140728376726222, 140728376726223, 140618677987072, 140618677987776, 6945123630603514737, 6945223253705831281}, mask_was_saved = 0}}, priv = {pad = {0x0, 0x0, 0x0, 0x0}, data = {prev = 0x0, cleanup = 0x0, canceltype = 0}}}
        not_first_call = <optimized out>
        pagesize_m1 = <optimized out>
        sp = <optimized out>
        freesize = <optimized out>
        __PRETTY_FUNCTION__ = "start_thread"
#6  0x00007fe46243ab0f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95
.
Thread 2 (Thread 0x7fe456d9b700 (LWP 3718)):
#0  0x00007fe46242e901 in __GI___poll (fds=0x132c000, nfds=1, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29
        resultvar = 18446744073709551100
        sc_cancel_oldtype = 0
#1  0x00007fe461367169 in  () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007fe46136727c in g_main_context_iteration () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fe4613672c1 in  () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007fe46138e645 in  () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007fe4632b37fc in start_thread (arg=0x7fe456d9b700) at pthread_create.c:465
        pd = 0x7fe456d9b700
        now = <optimized out>
        unwind_buf = {cancel_jmp_buf = {{jmp_buf = {140618686379776, -6941553811615173775, 140728376725838, 140728376725839, 140618686379776, 140618686380480, 6945122531628757873, 6945223253705831281}, mask_was_saved = 0}}, priv = {pad = {0x0, 0x0, 0x0, 0x0}, data = {prev = 0x0, cleanup = 0x0, canceltype = 0}}}
        not_first_call = <optimized out>
        pagesize_m1 = <optimized out>
        sp = <optimized out>
        freesize = <optimized out>
        __PRETTY_FUNCTION__ = "start_thread"
#6  0x00007fe46243ab0f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95
.
Thread 1 (Thread 0x7fe4636bb740 (LWP 3715)):
#0  0x00007fe46136c961 in  () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007fe46136d99c in g_log_default_handler () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007fe46136dc2d in g_logv () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fe46136dd9f in g_log () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007fe460c7fbd9 in  () at /usr/lib/x86_64-linux-gnu/libgio-2.0.so.0
#5  0x00007fe460c8021c in  () at /usr/lib/x86_64-linux-gnu/libgio-2.0.so.0
#6  0x00007fe460c83d3f in g_settings_get_value () at /usr/lib/x86_64-linux-gnu/libgio-2.0.so.0
#7  0x00007fe460c84bfb in g_settings_get_string () at /usr/lib/x86_64-linux-gnu/libgio-2.0.so.0
#8  0x00007fe461119e18 in ffi_call_unix64 () at /usr/lib/x86_64-linux-gnu/libffi.so.6
#9  0x00007fe46111987a in ffi_call () at /usr/lib/x86_64-linux-gnu/libffi.so.6
#10 0x00007fe461ae3de4 in  () at /usr/lib/python3/dist-packages/gi/_gi.cpython-36m-x86_64-linux-gnu.so
#11 0x00007fe461ae5998 in  () at /usr/lib/python3/dist-packages/gi/_gi.cpython-36m-x86_64-linux-gnu.so
#12 0x00007fe461ad9c39 in  () at /usr/lib/python3/dist-packages/gi/_gi.cpython-36m-x86_64-linux-gnu.so
#13 0x0000000000459893 in _PyObject_FastCallDict ()
#14 0x000000000054f117 in  ()
#15 0x0000000000553aaf in _PyEval_EvalFrameDefault ()
#16 0x000000000054e4c8 in  ()
#17 0x00000000005582c2 in _PyFunction_FastCallDict ()
#18 0x0000000000459c11 in _PyObject_Call_Prepend ()
#19 0x000000000045969e in PyObject_Call ()
#20 0x00000000004e0b5b in  ()
#21 0x00000000004da8d7 in  ()
#22 0x0000000000459893 in _PyObject_FastCallDict ()
#23 0x000000000054f117 in  ()
#24 0x0000000000553aaf in _PyEval_EvalFrameDefault ()
#25 0x000000000054e4c8 in  ()
#26 0x000000000054f4f6 in  ()
#27 0x0000000000553aaf in _PyEval_EvalFrameDefault ()
#28 0x000000000054efc1 in  ()
#29 0x000000000054ffee in PyEval_EvalCodeEx ()
#30 0x000000000048b786 in  ()
#31 0x000000000045969e in PyObject_Call ()
#32 0x00007fe461ae1b4b in  () at /usr/lib/python3/dist-packages/gi/_gi.cpython-36m-x86_64-linux-gnu.so
#33 0x00007fe461119c0f in ffi_closure_unix64_inner () at /usr/lib/x86_64-linux-gnu/libffi.so.6
#34 0x00007fe461119f80 in ffi_closure_unix64 () at /usr/lib/x86_64-linux-gnu/libffi.so.6
#35 0x00007fe46163ff9d in g_closure_invoke () at /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0
#36 0x00007fe461652758 in  () at /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0
#37 0x00007fe46165b4b5 in g_signal_emit_valist () at /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0
#38 0x00007fe46165becf in g_signal_emit () at /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0
#39 0x00007fe460c159a5 in  () at /usr/lib/x86_64-linux-gnu/libgio-2.0.so.0
#40 0x00007fe460c15bb6 in g_application_run () at /usr/lib/x86_64-linux-gnu/libgio-2.0.so.0
#41 0x00007fe461119e18 in ffi_call_unix64 () at /usr/lib/x86_64-linux-gnu/libffi.so.6
#42 0x00007fe46111987a in ffi_call () at /usr/lib/x86_64-linux-gnu/libffi.so.6
#43 0x00007fe461ae3de4 in  () at /usr/lib/python3/dist-packages/gi/_gi.cpython-36m-x86_64-linux-gnu.so
#44 0x00007fe461ae5998 in  () at /usr/lib/python3/dist-packages/gi/_gi.cpython-36m-x86_64-linux-gnu.so
#45 0x00007fe461ad9c39 in  () at /usr/lib/python3/dist-packages/gi/_gi.cpython-36m-x86_64-linux-gnu.so
#46 0x0000000000459893 in _PyObject_FastCallDict ()
#47 0x000000000054f117 in  ()
#48 0x0000000000553aaf in _PyEval_EvalFrameDefault ()
#49 0x000000000054efc1 in  ()
#50 0x000000000054ff73 in PyEval_EvalCode ()
#51 0x000000000042b3c9 in PyRun_FileExFlags ()
#52 0x000000000042b5b5 in PyRun_SimpleFileExFlags ()
#53 0x000000000044182b in Py_Main ()
#54 0x0000000000421f64 in main ()