.
Thread 4 (Thread 0x7fac88f79940 (LWP 3253)):
#0  0x00007fac86cf2b03 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  0x00007fac87010aa4 in g_main_context_poll (n_fds=5, fds=0x12599c0, timeout=32955, context=0x1020080, priority=<optimized out>) at /build/buildd/glib2.0-2.33.2/./glib/gmain.c:3440
        poll_func = 0x7fac8701e930 <g_poll>
#2  g_main_context_iterate (context=0x1020080, block=block@entry=1, dispatch=dispatch@entry=1, self=<error reading variable: Unhandled dwarf expression opcode 0xfa>) at /build/buildd/glib2.0-2.33.2/./glib/gmain.c:3141
        max_priority = 2147483647
        timeout = 32955
        some_ready = <optimized out>
        nfds = 5
        allocated_nfds = <optimized out>
        fds = 0x12599c0
#3  0x00007fac87010f02 in g_main_loop_run (loop=0x10fe1a0) at /build/buildd/glib2.0-2.33.2/./glib/gmain.c:3340
        __PRETTY_FUNCTION__ = "g_main_loop_run"
#4  0x00007fac88639c15 in gtk_main () at /build/buildd/gtk+3.0-3.5.4/./gtk/gtkmain.c:1162
        loop = 0x10fe1a0
#5  0x0000000000404fc2 in main (argc=1, argv=0x7fff409939a8) at /build/buildd/unity-5.12/services/panel-main.c:431
        service = 0x10eb000
        owner_id = 2
        __PRETTY_FUNCTION__ = "main"
.
Thread 3 (Thread 0x7fac7eff2700 (LWP 3265)):
#0  0x00007fac86cf2b03 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  0x00007fac87010aa4 in g_main_context_poll (n_fds=1, fds=0x7fac780010e0, timeout=-1, context=0xfee060, priority=<optimized out>) at /build/buildd/glib2.0-2.33.2/./glib/gmain.c:3440
        poll_func = 0x7fac8701e930 <g_poll>
#2  g_main_context_iterate (context=0xfee060, block=block@entry=1, dispatch=dispatch@entry=1, self=<error reading variable: Unhandled dwarf expression opcode 0xfa>) at /build/buildd/glib2.0-2.33.2/./glib/gmain.c:3141
        max_priority = 2147483647
        timeout = -1
        some_ready = <optimized out>
        nfds = 1
        allocated_nfds = <optimized out>
        fds = 0x7fac780010e0
#3  0x00007fac87010f02 in g_main_loop_run (loop=0x7fac780010c0) at /build/buildd/glib2.0-2.33.2/./glib/gmain.c:3340
        __PRETTY_FUNCTION__ = "g_main_loop_run"
#4  0x00007fac7eff7b7b in dconf_context_thread (data=0xfee060) at dconfcontext.c:11
        context = 0xfee060
        loop = <optimized out>
        __PRETTY_FUNCTION__ = "dconf_context_thread"
#5  0x00007fac87033705 in g_thread_proxy (data=0x10d8720) at /build/buildd/glib2.0-2.33.2/./glib/gthread.c:801
        thread = 0x10d8720
#6  0x00007fac864f8e9a in start_thread (arg=0x7fac7eff2700) at pthread_create.c:308
        __res = <optimized out>
        pd = 0x7fac7eff2700
        now = <optimized out>
        unwind_buf = {cancel_jmp_buf = {{jmp_buf = {0, 5819998559653938774, 140734277168960, 140378841754048, 0, 3, -5792697689131628970, -5792256642737945002}, mask_was_saved = 0}}, priv = {pad = {0x0, 0x0, 0x0, 0x0}, data = {prev = 0x0, cleanup = 0x0, canceltype = 0}}}
        not_first_call = 0
        pagesize_m1 = <optimized out>
        sp = <optimized out>
        freesize = <optimized out>
        __PRETTY_FUNCTION__ = "start_thread"
#7  0x00007fac86cfe4bd 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 0x7fac6d63f700 (LWP 4007)):
#0  pthread_cond_timedwait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_timedwait.S:215
No locals.
#1  0x00007fac8704ce85 in g_cond_wait_until (cond=cond@entry=0x1109168, mutex=mutex@entry=0x1109160, end_time=end_time@entry=11758048899) at /build/buildd/glib2.0-2.33.2/./glib/gthread-posix.c:855
        ts = {tv_sec = 11758, tv_nsec = 48899000}
        status = <optimized out>
#2  0x00007fac86fe7331 in g_async_queue_pop_intern_unlocked (queue=queue@entry=0x1109160, wait=wait@entry=1, end_time=end_time@entry=11758048899) at /build/buildd/glib2.0-2.33.2/./glib/gasyncqueue.c:424
        retval = <optimized out>
        __PRETTY_FUNCTION__ = "g_async_queue_pop_intern_unlocked"
#3  0x00007fac86fe797a in g_async_queue_timeout_pop (queue=0x1109160, timeout=timeout@entry=15000000) at /build/buildd/glib2.0-2.33.2/./glib/gasyncqueue.c:545
        end_time = 11758048899
        retval = <optimized out>
#4  0x00007fac87033ec2 in g_thread_pool_wait_for_new_pool () at /build/buildd/glib2.0-2.33.2/./glib/gthreadpool.c:169
        pool = <optimized out>
        local_max_idle_time = 15000
        local_wakeup_thread_serial = <optimized out>
        local_max_unused_threads = 2
        last_wakeup_thread_serial = 0
        have_relayed_thread_marker = 0
#5  g_thread_pool_thread_proxy (data=<optimized out>) at /build/buildd/glib2.0-2.33.2/./glib/gthreadpool.c:366
        free_pool = <optimized out>
        task = 0x2
        pool = <optimized out>
#6  0x00007fac87033705 in g_thread_proxy (data=0x1253140) at /build/buildd/glib2.0-2.33.2/./glib/gthread.c:801
        thread = 0x1253140
#7  0x00007fac864f8e9a in start_thread (arg=0x7fac6d63f700) at pthread_create.c:308
        __res = <optimized out>
        pd = 0x7fac6d63f700
        now = <optimized out>
        unwind_buf = {cancel_jmp_buf = {{jmp_buf = {0, 5819998559653938774, 140734277169744, 140378546371008, 20995920, 3, -5792734003616987562, -5792256642737945002}, mask_was_saved = 0}}, priv = {pad = {0x0, 0x0, 0x0, 0x0}, data = {prev = 0x0, cleanup = 0x0, canceltype = 0}}}
        not_first_call = 0
        pagesize_m1 = <optimized out>
        sp = <optimized out>
        freesize = <optimized out>
        __PRETTY_FUNCTION__ = "start_thread"
#8  0x00007fac86cfe4bd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
No locals.
#9  0x0000000000000000 in ?? ()
No symbol table info available.
.
Thread 1 (Thread 0x7fac7e7f1700 (LWP 3266)):
#0  __memset_x86_64 () at ../sysdeps/x86_64/multiarch/../memset.S:1229
No locals.
#1  0x00007fac8702adbb in memset (__len=152, __ch=0, __dest=0x7fac70005220) at /usr/include/x86_64-linux-gnu/bits/string3.h:85
No locals.
#2  g_slice_alloc0 (mem_size=152) at /build/buildd/glib2.0-2.33.2/./glib/gslice.c:1031
        mem = 0x7fac70005220
#3  0x00007fac878513fa in g_type_create_instance (type=140378724471120) at /build/buildd/glib2.0-2.33.2/./gobject/gtype.c:1872
        node = 0x7fac78019150
        instance = <optimized out>
        class = 0x7fac7801a160
        i = <optimized out>
        total_size = <optimized out>
#4  0x00007fac878354c8 in g_object_constructor (type=<optimized out>, n_construct_properties=3, construct_params=0x7fac70033e20) at /build/buildd/glib2.0-2.33.2/./gobject/gobject.c:1854
        object = <optimized out>
#5  0x00007fac87836ac1 in g_object_newv (object_type=object_type@entry=140378724471120, n_parameters=n_parameters@entry=1, parameters=parameters@entry=0x7fac70063df0) at /build/buildd/glib2.0-2.33.2/./gobject/gobject.c:1718
        cparams = 0x7fac70033e20
        oparams = 0x7fac7003c600
        nqueue = 0x0
        object = <optimized out>
        class = 0x7fac7801a160
        unref_class = 0x0
        slist = <optimized out>
        n_total_cparams = <optimized out>
        n_cparams = 3
        n_oparams = <optimized out>
        n_cvalues = <optimized out>
        cvalues = <optimized out>
        clist = <optimized out>
        newly_constructed = <optimized out>
        i = <optimized out>
        __PRETTY_FUNCTION__ = "g_object_newv"
#6  0x00007fac878372b0 in g_object_new_valist (object_type=object_type@entry=140378724471120, first_property_name=first_property_name@entry=0x7fac87d930eb "base-stream", var_args=var_args@entry=0x7fac7e7f0918) at /build/buildd/glib2.0-2.33.2/./gobject/gobject.c:1835
        class = 0x7fac7801a160
        params = 0x7fac70063df0
        name = 0x0
        object = <optimized out>
        n_params = <optimized out>
        n_alloced_params = <optimized out>
        __PRETTY_FUNCTION__ = "g_object_new_valist"
#7  0x00007fac878375e4 in g_object_new (object_type=140378724471120, first_property_name=first_property_name@entry=0x7fac87d930eb "base-stream") at /build/buildd/glib2.0-2.33.2/./gobject/gobject.c:1550
        object = <optimized out>
        var_args = {{gp_offset = 32, fp_offset = 48, overflow_arg_area = 0x7fac7e7f0a00, reg_save_area = 0x7fac7e7f0930}}
        __PRETTY_FUNCTION__ = "g_object_new"
#8  0x00007fac87ccb75c in g_data_input_stream_new (base_stream=<optimized out>) at /build/buildd/glib2.0-2.33.2/./gio/gdatainputstream.c:195
        __PRETTY_FUNCTION__ = "g_data_input_stream_new"
#9  0x00007fac87d5d82b in g_dbus_message_new_from_blob (blob=<optimized out>, blob_len=<optimized out>, capabilities=<optimized out>, error=error@entry=0x7fac7e7f0b28) at /build/buildd/glib2.0-2.33.2/./gio/gdbusmessage.c:1681
        ret = 0
        mis = 0x7fac70083b00
        dis = <optimized out>
        message = 0x11f5d40
        endianness = <optimized out>
        major_protocol_version = <optimized out>
        byte_order = <optimized out>
        message_body_len = <optimized out>
        headers = <optimized out>
        item = <optimized out>
        iter = {x = {140378590360096, 140378990077781, 140378724377760, 140378990084688, 140378724485776, 140378724390912, 140378724388864, 140378724485776, 140378724390912, 140378976340801, 21514752, 1, 24, 140378976029369, 140378724479040, 140378989418758}}
        signature = <optimized out>
        __PRETTY_FUNCTION__ = "g_dbus_message_new_from_blob"
#10 0x00007fac87d68615 in _g_dbus_worker_do_read_cb (input_stream=<optimized out>, res=<optimized out>, user_data=user_data@entry=0x7fac7801ca90) at /build/buildd/glib2.0-2.33.2/./gio/gdbusprivate.c:753
        message = <optimized out>
        worker = 0x7fac7801ca90
        error = 0x0
        bytes_read = 221
#11 0x00007fac87d04c6e in g_simple_async_result_complete (simple=0x7fac78005950) at /build/buildd/glib2.0-2.33.2/./gio/gsimpleasyncresult.c:767
        current_source = <optimized out>
        current_context = <optimized out>
        __PRETTY_FUNCTION__ = "g_simple_async_result_complete"
#12 0x00007fac87d04d9c in complete_in_idle_cb (data=0x7fac78005950) at /build/buildd/glib2.0-2.33.2/./gio/gsimpleasyncresult.c:779
        simple = <optimized out>
#13 0x00007fac870107d5 in g_main_dispatch (context=0x7fac7801b040) at /build/buildd/glib2.0-2.33.2/./glib/gmain.c:2539
        dispatch = 0x7fac8700e4f0 <g_idle_dispatch>
        was_in_call = 0
        user_data = 0x7fac78005950
        callback = 0x7fac87d04d80 <complete_in_idle_cb>
        cb_funcs = 0x7fac872bc9a0
        cb_data = 0x7fac7005b5b0
        current_source_link = {data = 0x7fac70056000, next = 0x0}
        need_destroy = <optimized out>
        source = 0x7fac70056000
        current = 0x7fac7801c660
        i = <optimized out>
#14 g_main_context_dispatch (context=context@entry=0x7fac7801b040) at /build/buildd/glib2.0-2.33.2/./glib/gmain.c:3075
No locals.
#15 0x00007fac87010b08 in g_main_context_iterate (context=0x7fac7801b040, block=block@entry=1, dispatch=dispatch@entry=1, self=<error reading variable: Unhandled dwarf expression opcode 0xfa>) at /build/buildd/glib2.0-2.33.2/./glib/gmain.c:3146
        max_priority = 0
        timeout = 0
        some_ready = 1
        nfds = <optimized out>
        allocated_nfds = <optimized out>
        fds = 0x7fac700010c0
#16 0x00007fac87010f02 in g_main_loop_run (loop=0x7fac7801afd0) at /build/buildd/glib2.0-2.33.2/./glib/gmain.c:3340
        __PRETTY_FUNCTION__ = "g_main_loop_run"
#17 0x00007fac87d663e6 in gdbus_shared_thread_func (user_data=0x7fac7801b010) at /build/buildd/glib2.0-2.33.2/./gio/gdbusprivate.c:277
        data = 0x7fac7801b010
#18 0x00007fac87033705 in g_thread_proxy (data=0x7fac78018140) at /build/buildd/glib2.0-2.33.2/./glib/gthread.c:801
        thread = 0x7fac78018140
#19 0x00007fac864f8e9a in start_thread (arg=0x7fac7e7f1700) at pthread_create.c:308
        __res = <optimized out>
        pd = 0x7fac7e7f1700
        now = <optimized out>
        unwind_buf = {cancel_jmp_buf = {{jmp_buf = {0, 5819998559653938774, 140378841749808, 140378833361344, 0, 3, -5792696589083130282, -5792256642737945002}, mask_was_saved = 0}}, priv = {pad = {0x0, 0x0, 0x0, 0x0}, data = {prev = 0x0, cleanup = 0x0, canceltype = 0}}}
        not_first_call = 0
        pagesize_m1 = <optimized out>
        sp = <optimized out>
        freesize = <optimized out>
        __PRETTY_FUNCTION__ = "start_thread"
#20 0x00007fac86cfe4bd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
No locals.
#21 0x0000000000000000 in ?? ()
No symbol table info available.