.
Thread 5 (LWP 2455):
#0  0x00007f0ec8351fbd in poll () at ../sysdeps/unix/syscall-template.S:81
No locals.
#1  0x00007f0ec8890fe4 in g_main_context_poll (priority=2147483647, n_fds=2, fds=0x7f0ea80008c0, timeout=3278, context=0xf526e0) at /build/buildd/glib2.0-2.40.0/./glib/gmain.c:4028
        poll_func = 0x7f0ec889fb40 <g_poll>
#2  g_main_context_iterate (context=context@entry=0xf526e0, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at /build/buildd/glib2.0-2.40.0/./glib/gmain.c:3729
        max_priority = 2147483647
        timeout = 3278
        some_ready = <optimized out>
        nfds = 2
        allocated_nfds = 2
        fds = 0x7f0ea80008c0
#3  0x00007f0ec88910ec in g_main_context_iteration (context=0xf526e0, may_block=may_block@entry=1) at /build/buildd/glib2.0-2.40.0/./glib/gmain.c:3795
        retval = <optimized out>
#4  0x00007f0ec8891129 in glib_worker_main (data=<optimized out>) at /build/buildd/glib2.0-2.40.0/./glib/gmain.c:5541
No locals.
#5  0x00007f0ec88b5f15 in g_thread_proxy (data=0xf425e0) at /build/buildd/glib2.0-2.40.0/./glib/gthread.c:764
        thread = 0xf425e0
#6  0x00007f0ec8632182 in start_thread (arg=0x7f0ebab45700) at pthread_create.c:312
        __res = <optimized out>
        pd = 0x7f0ebab45700
        now = <optimized out>
        unwind_buf = {cancel_jmp_buf = {{jmp_buf = {139701238650624, -1353961073071876651, 0, 0, 139701238651328, 139701238650624, 1380554476126475733, 1380444912964736469}, 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"
#7  0x00007f0ec835f30d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:111
No locals.
.
Thread 4 (LWP 2470):
#0  pthread_cond_timedwait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_timedwait.S:238
No locals.
#1  0x00007f0ec88d2cf5 in g_cond_wait_until (cond=cond@entry=0xf1fa08, mutex=mutex@entry=0xf1fa00, end_time=end_time@entry=105786027) at /build/buildd/glib2.0-2.40.0/./glib/gthread-posix.c:898
        ts = {tv_sec = 105, tv_nsec = 786027000}
        status = <optimized out>
#2  0x00007f0ec88671c1 in g_async_queue_pop_intern_unlocked (queue=0xf1fa00, wait=wait@entry=1, end_time=105786027) at /build/buildd/glib2.0-2.40.0/./glib/gasyncqueue.c:422
        retval = <optimized out>
        __FUNCTION__ = "g_async_queue_pop_intern_unlocked"
#3  0x00007f0ec8867788 in g_async_queue_timeout_pop_unlocked (queue=<optimized out>, timeout=timeout@entry=500000) at /build/buildd/glib2.0-2.40.0/./glib/gasyncqueue.c:570
        end_time = <optimized out>
#4  0x00007f0ec88b6872 in g_thread_pool_wait_for_new_task (pool=0xf1f600) at /build/buildd/glib2.0-2.40.0/./glib/gthreadpool.c:262
        task = <optimized out>
#5  g_thread_pool_thread_proxy (data=<optimized out>) at /build/buildd/glib2.0-2.40.0/./glib/gthreadpool.c:296
        task = 0xf2ec30
        pool = 0xf1f600
#6  0x00007f0ec88b5f15 in g_thread_proxy (data=0x1095ad0) at /build/buildd/glib2.0-2.40.0/./glib/gthread.c:764
        thread = 0x1095ad0
#7  0x00007f0ec8632182 in start_thread (arg=0x7f0e9da88700) at pthread_create.c:312
        __res = <optimized out>
        pd = 0x7f0e9da88700
        now = <optimized out>
        unwind_buf = {cancel_jmp_buf = {{jmp_buf = {139700751337216, -1353961073071876651, 0, 0, 139700751337920, 139700751337216, 1380626802838869461, 1380444912964736469}, 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"
#8  0x00007f0ec835f30d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:111
No locals.
.
Thread 3 (LWP 2454):
#0  0x00007f0ec8351fbd in poll () at ../sysdeps/unix/syscall-template.S:81
No locals.
#1  0x00007f0ec8890fe4 in g_main_context_poll (priority=2147483647, n_fds=1, fds=0x7f0eb00010c0, timeout=25000, context=0xf39150) at /build/buildd/glib2.0-2.40.0/./glib/gmain.c:4028
        poll_func = 0x7f0ec889fb40 <g_poll>
#2  g_main_context_iterate (context=context@entry=0xf39150, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at /build/buildd/glib2.0-2.40.0/./glib/gmain.c:3729
        max_priority = 2147483647
        timeout = 25000
        some_ready = <optimized out>
        nfds = 1
        allocated_nfds = 1
        fds = 0x7f0eb00010c0
#3  0x00007f0ec88910ec in g_main_context_iteration (context=0xf39150, may_block=1) at /build/buildd/glib2.0-2.40.0/./glib/gmain.c:3795
        retval = <optimized out>
#4  0x00007f0ec02151ad in ?? () from /tmp/apport_sandbox_tQHMV3/usr/lib/x86_64-linux-gnu/gio/modules/libdconfsettings.so
No symbol table info available.
#5  0x00007f0ec88b5f15 in g_thread_proxy (data=0x7f0eb4004000) at /build/buildd/glib2.0-2.40.0/./glib/gthread.c:764
        thread = 0x7f0eb4004000
#6  0x00007f0ec8632182 in start_thread (arg=0x7f0ebbfff700) at pthread_create.c:312
        __res = <optimized out>
        pd = 0x7f0ebbfff700
        now = <optimized out>
        unwind_buf = {cancel_jmp_buf = {{jmp_buf = {139701260384000, -1353961073071876651, 0, 0, 139701260384704, 139701260384000, 1380551661849155029, 1380444912964736469}, 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"
#7  0x00007f0ec835f30d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:111
No locals.
.
Thread 2 (LWP 2453):
#0  0x00007f0ec8351fbd in poll () at ../sysdeps/unix/syscall-template.S:81
No locals.
#1  0x00007f0ec8890fe4 in g_main_context_poll (priority=2147483647, n_fds=3, fds=0x7f0eb40010c0, timeout=-1, context=0x7f0ebc00b7a0) at /build/buildd/glib2.0-2.40.0/./glib/gmain.c:4028
        poll_func = 0x7f0ec889fb40 <g_poll>
#2  g_main_context_iterate (context=0x7f0ebc00b7a0, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at /build/buildd/glib2.0-2.40.0/./glib/gmain.c:3729
        max_priority = 2147483647
        timeout = -1
        some_ready = <optimized out>
        nfds = 3
        allocated_nfds = 3
        fds = 0x7f0eb40010c0
#3  0x00007f0ec889130a in g_main_loop_run (loop=0x7f0ebc00b730) at /build/buildd/glib2.0-2.40.0/./glib/gmain.c:3928
        __FUNCTION__ = "g_main_loop_run"
#4  0x00007f0ec8e77e16 in gdbus_shared_thread_func (user_data=0x7f0ebc00b770) at /build/buildd/glib2.0-2.40.0/./gio/gdbusprivate.c:273
        data = 0x7f0ebc00b770
#5  0x00007f0ec88b5f15 in g_thread_proxy (data=0xeeded0) at /build/buildd/glib2.0-2.40.0/./glib/gthread.c:764
        thread = 0xeeded0
#6  0x00007f0ec8632182 in start_thread (arg=0x7f0ec0c1b700) at pthread_create.c:312
        __res = <optimized out>
        pd = 0x7f0ec0c1b700
        now = <optimized out>
        unwind_buf = {cancel_jmp_buf = {{jmp_buf = {139701340190464, -1353961073071876651, 0, 0, 139701340191168, 139701340190464, 1380425924534080981, 1380444912964736469}, 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"
#7  0x00007f0ec835f30d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:111
No locals.
.
Thread 1 (LWP 2451):
#0  0x00007f0ea25a35c8 in gsettings_changed_cb (settings=<optimized out>, settings_key=0xecd775 "active", manager=0xf5e2f0) at gsd-media-keys-manager.c:828
        i = 0
        need_flush = 1
#1  0x00007f0ec8b62f29 in g_cclosure_marshal_VOID__STRINGv (closure=0x10144a0, return_value=<optimized out>, instance=<optimized out>, args=<optimized out>, marshal_data=<optimized out>, n_params=<optimized out>, param_types=0xf338d0) at /build/buildd/glib2.0-2.40.0/./gobject/gmarshal.c:1004
        cc = 0x10144a0
        data1 = <optimized out>
        data2 = <optimized out>
        callback = <optimized out>
        arg0 = 0xecd775
        args_copy = {{gp_offset = 32, fp_offset = 48, overflow_arg_area = 0x7fffe2e77ac0, reg_save_area = 0x7fffe2e77a00}}
#2  0x00007f0ec8b605e7 in _g_closure_invoke_va (closure=0x10144a0, return_value=0x0, instance=0xf425c0, args=0x7fffe2e779e8, n_params=1, param_types=0xf338d0) at /build/buildd/glib2.0-2.40.0/./gobject/gclosure.c:831
        marshal = 0x7f0ec8b62ea0 <g_cclosure_marshal_VOID__STRINGv>
        marshal_data = 0x0
        in_marshal = 0
        real_closure = 0x1014480
        __FUNCTION__ = "_g_closure_invoke_va"
#3  0x00007f0ec8b79088 in g_signal_emit_valist (instance=0xf425c0, signal_id=<optimized out>, detail=754, var_args=var_args@entry=0x7fffe2e779e8) at /build/buildd/glib2.0-2.40.0/./gobject/gsignal.c:3215
        return_accu = 0x0
        accu = {g_type = 0, data = {{v_int = 0, v_uint = 0, v_long = 0, v_ulong = 0, v_int64 = 0, v_uint64 = 0, v_float = 0, v_double = 0, v_pointer = 0x0}, {v_int = 0, v_uint = 0, v_long = 0, v_ulong = 0, v_int64 = 0, v_uint64 = 0, v_float = 0, v_double = 0, v_pointer = 0x0}}}
        accumulator = 0x0
        emission = {next = 0x7fffe2e77ee0, instance = 0xf425c0, ihint = {signal_id = 148, detail = 754, run_type = G_SIGNAL_RUN_FIRST}, state = EMISSION_RUN, chain_type = 15592784}
        signal_id = <optimized out>
        instance_type = <optimized out>
        emission_return = {g_type = 0, data = {{v_int = 0, v_uint = 0, v_long = 0, v_ulong = 0, v_int64 = 0, v_uint64 = 0, v_float = 0, v_double = 0, v_pointer = 0x0}, {v_int = 0, v_uint = 0, v_long = 0, v_ulong = 0, v_int64 = 0, v_uint64 = 0, v_float = 0, v_double = 0, v_pointer = 0x0}}}
        rtype = 4
        static_scope = 0
        fastpath_handler = <optimized out>
        closure = 0x10144a0
        run_type = <optimized out>
        l = <optimized out>
        fastpath = <optimized out>
        instance_and_params = <optimized out>
        signal_return_type = <optimized out>
        param_values = <optimized out>
        i = <optimized out>
        n_params = <optimized out>
        __FUNCTION__ = "g_signal_emit_valist"
#4  0x00007f0ec8b79ce2 in g_signal_emit (instance=instance@entry=0xf425c0, signal_id=<optimized out>, detail=<optimized out>) at /build/buildd/glib2.0-2.40.0/./gobject/gsignal.c:3363
        var_args = {{gp_offset = 24, fp_offset = 48, overflow_arg_area = 0x7fffe2e77ac0, reg_save_area = 0x7fffe2e77a00}}
#5  0x00007f0ec8e575ec in g_settings_real_change_event (settings=0xf425c0, keys=<optimized out>, n_keys=1) at /build/buildd/glib2.0-2.40.0/./gio/gsettings.c:277
        key = 0xecd775 "active"
        i = 0
#6  0x00007f0ec4e98adc in ffi_call_unix64 () at ../src/x86/unix64.S:76
No locals.
#7  0x00007f0ec4e9840c in ffi_call (cif=cif@entry=0x7fffe2e77d60, fn=0x7f0ec8e57580 <g_settings_real_change_event>, rvalue=0x7fffe2e77c90, avalue=avalue@entry=0x7fffe2e77c30) at ../src/x86/ffi64.c:522
        classes = {X86_64_INTEGER_CLASS, X86_64_NO_CLASS, 3806821728, 32767}
        stack = 0x7fffe2e77a50 "\300%\364"
        argp = 0x7fffe2e77b00 "\n"
        arg_types = <optimized out>
        gprcount = 4
        ssecount = <optimized out>
        ngpr = 1
        nsse = 0
        i = <optimized out>
        avn = <optimized out>
        ret_in_memory = <optimized out>
        reg_args = 0x7fffe2e77a50
#8  0x00007f0ec8b61055 in g_cclosure_marshal_generic_va (closure=0xedf6f0, return_value=0x7fffe2e77ea0, instance=0xf425c0, args_list=<optimized out>, marshal_data=0x7f0ec8e57580 <g_settings_real_change_event>, n_params=2, param_types=0xedf940) at /build/buildd/glib2.0-2.40.0/./gobject/gclosure.c:1541
        rtype = 0x7f0ec4e98e10 <ffi_type_sint32>
        rvalue = 0x7fffe2e77c90
        n_args = 4
        atypes = 0x7fffe2e77c60
        args = 0x7fffe2e77c30
        storage = 0x7fffe2e77c10
        i = <optimized out>
        cif = {abi = FFI_UNIX64, nargs = 4, arg_types = 0x7fffe2e77c60, rtype = 0x7f0ec4e98e10 <ffi_type_sint32>, bytes = 0, flags = 10}
        cc = 0xedf6f0
        enum_tmpval = <optimized out>
        tmpval_used = 0
        args_copy = {{gp_offset = 40, fp_offset = 48, overflow_arg_area = 0x7fffe2e78080, reg_save_area = 0x7fffe2e77fc0}}
#9  0x00007f0ec8b605e7 in _g_closure_invoke_va (closure=0xedf6f0, return_value=0x7fffe2e77ea0, instance=0xf425c0, args=0x7fffe2e77fa8, n_params=2, param_types=0xedf940) at /build/buildd/glib2.0-2.40.0/./gobject/gclosure.c:831
        marshal = 0x7f0ec8b5eb30 <g_type_class_meta_marshalv>
        marshal_data = 0xa0
        in_marshal = 0
        real_closure = 0xedf6d0
        __FUNCTION__ = "_g_closure_invoke_va"
#10 0x00007f0ec8b79088 in g_signal_emit_valist (instance=0xf425c0, signal_id=<optimized out>, detail=0, var_args=var_args@entry=0x7fffe2e77fa8) at /build/buildd/glib2.0-2.40.0/./gobject/gsignal.c:3215
        return_accu = 0x7fffe2e77ea0
        accu = {g_type = 20, data = {{v_int = 0, v_uint = 0, v_long = 0, v_ulong = 0, v_int64 = 0, v_uint64 = 0, v_float = 0, v_double = 0, v_pointer = 0x0}, {v_int = 0, v_uint = 0, v_long = 0, v_ulong = 0, v_int64 = 0, v_uint64 = 0, v_float = 0, v_double = 0, v_pointer = 0x0}}}
        accumulator = 0xf33910
        emission = {next = 0x0, instance = 0xf425c0, ihint = {signal_id = 149, detail = 0, run_type = G_SIGNAL_RUN_LAST}, state = EMISSION_RUN, chain_type = 15592784}
        signal_id = <optimized out>
        instance_type = <optimized out>
        emission_return = {g_type = 20, data = {{v_int = 0, v_uint = 0, v_long = 0, v_ulong = 0, v_int64 = 0, v_uint64 = 0, v_float = 0, v_double = 0, v_pointer = 0x0}, {v_int = 0, v_uint = 0, v_long = 0, v_ulong = 0, v_int64 = 0, v_uint64 = 0, v_float = 0, v_double = 0, v_pointer = 0x0}}}
        rtype = 20
        static_scope = 0
        fastpath_handler = <optimized out>
        closure = 0xedf6f0
        run_type = <optimized out>
        l = <optimized out>
        fastpath = <optimized out>
        instance_and_params = <optimized out>
        signal_return_type = <optimized out>
        param_values = <optimized out>
        i = <optimized out>
        n_params = <optimized out>
        __FUNCTION__ = "g_signal_emit_valist"
#11 0x00007f0ec8b79ce2 in g_signal_emit (instance=instance@entry=0xf425c0, signal_id=<optimized out>, detail=detail@entry=0) at /build/buildd/glib2.0-2.40.0/./gobject/gsignal.c:3363
        var_args = {{gp_offset = 24, fp_offset = 48, overflow_arg_area = 0x7fffe2e78080, reg_save_area = 0x7fffe2e77fc0}}
#12 0x00007f0ec8e5726e in settings_backend_changed (target=0xf425c0, backend=<optimized out>, key=<optimized out>, origin_tag=<optimized out>) at /build/buildd/glib2.0-2.40.0/./gio/gsettings.c:337
        quark = 754
        settings = 0xf425c0
        ignore_this = 99
        i = <optimized out>
#13 0x00007f0ec8e52dca in g_settings_backend_invoke_closure (user_data=0x7f0eb000f8c0) at /build/buildd/glib2.0-2.40.0/./gio/gsettingsbackend.c:267
        closure = 0x7f0eb000f8c0
#14 0x00007f0ec8890ce5 in g_main_dispatch (context=0xeff7e0) at /build/buildd/glib2.0-2.40.0/./glib/gmain.c:3064
        dispatch = 0x7f0ec888dbc0 <g_idle_dispatch>
        prev_source = 0x0
        was_in_call = 0
        user_data = 0x7f0eb000f8c0
        callback = 0x7f0ec8e52db0 <g_settings_backend_invoke_closure>
        cb_funcs = 0x7f0ec8b4e920 <g_source_callback_funcs>
        cb_data = 0x7f0eb0009910
        need_destroy = <optimized out>
        source = 0x7f0eb00098a0
        current = 0xf1d850
        i = 100
#15 g_main_context_dispatch (context=context@entry=0xeff7e0) at /build/buildd/glib2.0-2.40.0/./glib/gmain.c:3663
No locals.
#16 0x00007f0ec8891048 in g_main_context_iterate (context=0xeff7e0, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at /build/buildd/glib2.0-2.40.0/./glib/gmain.c:3734
        max_priority = 0
        timeout = 0
        some_ready = 1
        nfds = <optimized out>
        allocated_nfds = 8
        fds = 0x105ea60
#17 0x00007f0ec889130a in g_main_loop_run (loop=0xf2e320) at /build/buildd/glib2.0-2.40.0/./glib/gmain.c:3928
        __FUNCTION__ = "g_main_loop_run"
#18 0x00007f0ec92b4b35 in gtk_main () at /build/buildd/gtk+3.0-3.10.7/./gtk/gtkmain.c:1158
        loop = 0xf2e320
#19 0x0000000000403714 in main (argc=1, argv=0x7fffe2e782e8) at main.c:476
No locals.