.
Thread 3 (Thread 0x7f5649092700 (LWP 1840)):
#0  0x00007f565d0d6773 in __GI___poll (fds=<optimized out>, nfds=<optimized out>, timeout=<optimized out>) at ../sysdeps/unix/sysv/linux/poll.c:87
        resultvar = <optimized out>
        oldtype = 0
        result = <optimized out>
#1  0x00007f565c6e3408 in g_main_context_poll (n_fds=3, fds=0x130ca40, timeout=-1, context=0x1309c10, priority=<optimized out>) at /build/buildd/glib2.0-2.29.16/./glib/gmain.c:3399
        poll_func = 0x7f565c6f19b0 <g_poll>
#2  g_main_context_iterate (context=0x1309c10, block=<optimized out>, dispatch=1, self=<optimized out>) at /build/buildd/glib2.0-2.29.16/./glib/gmain.c:3081
        max_priority = 2147483647
        timeout = -1
        some_ready = <optimized out>
        nfds = 3
        allocated_nfds = <optimized out>
        fds = 0x130ca40
#3  0x00007f565c6e3c32 in g_main_loop_run (loop=0x1309bc0) at /build/buildd/glib2.0-2.29.16/./glib/gmain.c:3294
        __PRETTY_FUNCTION__ = "g_main_loop_run"
#4  0x00007f5658ba3bd6 in gdbus_shared_thread_func (user_data=<optimized out>) at /build/buildd/glib2.0-2.29.16/./gio/gdbusprivate.c:276
        data = 0x1309be0
#5  0x00007f565c7089a6 in g_thread_create_proxy (data=0x1309d00) at /build/buildd/glib2.0-2.29.16/./glib/gthread.c:1962
        thread = 0x1309d00
        __PRETTY_FUNCTION__ = "g_thread_create_proxy"
#6  0x00007f565cbb5edc in start_thread () from /lib/x86_64-linux-gnu/libpthread.so.0
No symbol table info available.
#7  0x00007f565d0e289d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
No locals.
#8  0x0000000000000000 in ?? ()
No symbol table info available.
.
Thread 2 (Thread 0x7f5649893700 (LWP 1839)):
#0  0x00007f565cbba3ab in pthread_cond_timedwait@@GLIBC_2.3.2 () from /lib/x86_64-linux-gnu/libpthread.so.0
No symbol table info available.
#1  0x00007f565a9624d5 in g_cond_timed_wait_posix_impl (cond=<optimized out>, entered_mutex=<optimized out>, abs_time=<optimized out>) at /build/buildd/glib2.0-2.29.16/./gthread/gthread-posix.c:242
        result = <optimized out>
        end_time = {tv_sec = 1314653491, tv_nsec = 55520000}
        timed_out = <optimized out>
        __PRETTY_FUNCTION__ = "g_cond_timed_wait_posix_impl"
#2  0x00007f565c6b748f in g_async_queue_pop_intern_unlocked (queue=0x12d4f50, try=0, end_time=0x7f56498927b0) at /build/buildd/glib2.0-2.29.16/./glib/gasyncqueue.c:415
        retval = <optimized out>
        __PRETTY_FUNCTION__ = "g_async_queue_pop_intern_unlocked"
#3  0x00007f565c70af01 in g_thread_pool_wait_for_new_task (pool=0x1300760) at /build/buildd/glib2.0-2.29.16/./glib/gthreadpool.c:274
        end_time = {tv_sec = 1314653491, tv_usec = 55520}
        task = <optimized out>
#4  g_thread_pool_thread_proxy (data=<optimized out>) at /build/buildd/glib2.0-2.29.16/./glib/gthreadpool.c:308
        task = 0x12faaf0
        pool = 0x1300760
#5  0x00007f565c7089a6 in g_thread_create_proxy (data=0x12fa8a0) at /build/buildd/glib2.0-2.29.16/./glib/gthread.c:1962
        thread = 0x12fa8a0
        __PRETTY_FUNCTION__ = "g_thread_create_proxy"
#6  0x00007f565cbb5edc in start_thread () from /lib/x86_64-linux-gnu/libpthread.so.0
No symbol table info available.
#7  0x00007f565d0e289d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
No locals.
#8  0x0000000000000000 in ?? ()
No symbol table info available.
.
Thread 1 (Thread 0x7f565f11bdc0 (LWP 1752)):
#0  0x00007f565dbb1152 in QConf::notify(char const*) () from /usr/lib/libdconf-qt.so.0
No symbol table info available.
#1  0x00007f565a2da826 in ?? () from /usr/lib/libdconf-dbus-1.so.0
No symbol table info available.
#2  0x00007f56558a940a in ?? () from /lib/x86_64-linux-gnu/libdbus-1.so.3
No symbol table info available.
#3  0x00007f56558ac69a in dbus_connection_dispatch () from /lib/x86_64-linux-gnu/libdbus-1.so.3
No symbol table info available.
#4  0x00007f565a4fa6a9 in ?? () from /usr/lib/x86_64-linux-gnu/libQtDBus.so.4
No symbol table info available.
#5  0x00007f565a53d7d4 in ?? () from /usr/lib/x86_64-linux-gnu/libQtDBus.so.4
No symbol table info available.
#6  0x00007f565df3c9fe in QObject::event(QEvent*) () from /usr/lib/x86_64-linux-gnu/libQtCore.so.4
No symbol table info available.
#7  0x00007f565e454154 in QApplicationPrivate::notify_helper(QObject*, QEvent*) () from /usr/lib/x86_64-linux-gnu/libQtGui.so.4
No symbol table info available.
#8  0x00007f565e458fc1 in QApplication::notify(QObject*, QEvent*) () from /usr/lib/x86_64-linux-gnu/libQtGui.so.4
No symbol table info available.
#9  0x00007f565df25b5c in QCoreApplication::notifyInternal(QObject*, QEvent*) () from /usr/lib/x86_64-linux-gnu/libQtCore.so.4
No symbol table info available.
#10 0x00007f565df2957f in QCoreApplicationPrivate::sendPostedEvents(QObject*, int, QThreadData*) () from /usr/lib/x86_64-linux-gnu/libQtCore.so.4
No symbol table info available.
#11 0x00007f565df50a83 in ?? () from /usr/lib/x86_64-linux-gnu/libQtCore.so.4
No symbol table info available.
#12 0x00007f565c6e2efd in g_main_dispatch (context=0x11b0c30) at /build/buildd/glib2.0-2.29.16/./glib/gmain.c:2439
        dispatch = 0x7f565df50a70
        was_in_call = 0
        user_data = 0x0
        callback = 0
        cb_funcs = 0x0
        cb_data = 0x0
        current_source_link = {data = 0x1264a00, next = 0x0}
        need_destroy = <optimized out>
        source = 0x1264a00
        current = 0x11f9d00
        i = <optimized out>
#13 g_main_context_dispatch (context=0x11b0c30) at /build/buildd/glib2.0-2.29.16/./glib/gmain.c:3008
No locals.
#14 0x00007f565c6e36f8 in g_main_context_iterate (context=0x11b0c30, block=<optimized out>, dispatch=1, self=<optimized out>) at /build/buildd/glib2.0-2.29.16/./glib/gmain.c:3086
        max_priority = 0
        timeout = 0
        some_ready = 1
        nfds = 8
        allocated_nfds = <optimized out>
        fds = <optimized out>
#15 0x00007f565c6e38c9 in g_main_context_iteration (context=0x11b0c30, may_block=1) at /build/buildd/glib2.0-2.29.16/./glib/gmain.c:3149
        retval = <optimized out>
#16 0x00007f565df50ee6 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQtCore.so.4
No symbol table info available.
#17 0x00007f565e4fb7ae in ?? () from /usr/lib/x86_64-linux-gnu/libQtGui.so.4
No symbol table info available.
#18 0x00007f565df24d52 in QEventLoop::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQtCore.so.4
No symbol table info available.
#19 0x00007f565df24f57 in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQtCore.so.4
No symbol table info available.
#20 0x00007f565df297e9 in QCoreApplication::exec() () from /usr/lib/x86_64-linux-gnu/libQtCore.so.4
No symbol table info available.
#21 0x0000000000403cf9 in main ()
No symbol table info available.