.
Thread 3 (Thread 0x7fe929bef700 (LWP 2762)):
#0  0x00007fe92e549bfd in poll () at ../sysdeps/unix/syscall-template.S:81
No locals.
#1  0x00007fe92ec8ffc4 in g_main_context_poll (priority=2147483647, n_fds=2, fds=0x7fe91c0010c0, timeout=-1, context=0x7fe9312aa150) at /build/buildd/glib2.0-2.41.1/./glib/gmain.c:4028
        poll_func = 0x7fe92ec9eb00 <g_poll>
#2  g_main_context_iterate (context=0x7fe9312aa150, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at /build/buildd/glib2.0-2.41.1/./glib/gmain.c:3729
        max_priority = 2147483647
        timeout = -1
        some_ready = <optimized out>
        nfds = 2
        allocated_nfds = 2
        fds = 0x7fe91c0010c0
#3  0x00007fe92ec902ea in g_main_loop_run (loop=0x7fe93126dce0) at /build/buildd/glib2.0-2.41.1/./glib/gmain.c:3928
        __FUNCTION__ = "g_main_loop_run"
#4  0x00007fe92e1bc0c6 in gdbus_shared_thread_func (user_data=0x7fe9312aa120) at /build/buildd/glib2.0-2.41.1/./gio/gdbusprivate.c:273
        data = 0x7fe9312aa120
#5  0x00007fe92ecb4f65 in g_thread_proxy (data=0x7fe93129a0a0) at /build/buildd/glib2.0-2.41.1/./glib/gthread.c:764
        thread = 0x7fe93129a0a0
#6  0x00007fe92dcc1165 in start_thread (arg=0x7fe929bef700) at pthread_create.c:309
        __res = <optimized out>
        pd = 0x7fe929bef700
        now = <optimized out>
        unwind_buf = {cancel_jmp_buf = {{jmp_buf = {140639404488448, -6392403382701708756, 0, 0, 140639404489152, 140639404488448, 6384922847261698604, 6384913937721535020}, 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  0x00007fe92e5544dd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:111
No locals.
.
Thread 2 (Thread 0x7fe92a3f0700 (LWP 2761)):
#0  0x00007fe92e549bfd in poll () at ../sysdeps/unix/syscall-template.S:81
No locals.
#1  0x00007fe92ec8ffc4 in g_main_context_poll (priority=2147483647, n_fds=1, fds=0x7fe9240008e0, timeout=-1, context=0x7fe931299e40) at /build/buildd/glib2.0-2.41.1/./glib/gmain.c:4028
        poll_func = 0x7fe92ec9eb00 <g_poll>
#2  g_main_context_iterate (context=context@entry=0x7fe931299e40, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at /build/buildd/glib2.0-2.41.1/./glib/gmain.c:3729
        max_priority = 2147483647
        timeout = -1
        some_ready = <optimized out>
        nfds = 1
        allocated_nfds = 1
        fds = 0x7fe9240008e0
#3  0x00007fe92ec900cc in g_main_context_iteration (context=0x7fe931299e40, may_block=may_block@entry=1) at /build/buildd/glib2.0-2.41.1/./glib/gmain.c:3795
        retval = <optimized out>
#4  0x00007fe92ec90109 in glib_worker_main (data=<optimized out>) at /build/buildd/glib2.0-2.41.1/./glib/gmain.c:5541
No locals.
#5  0x00007fe92ecb4f65 in g_thread_proxy (data=0x7fe93129a000) at /build/buildd/glib2.0-2.41.1/./glib/gthread.c:764
        thread = 0x7fe93129a000
#6  0x00007fe92dcc1165 in start_thread (arg=0x7fe92a3f0700) at pthread_create.c:309
        __res = <optimized out>
        pd = 0x7fe92a3f0700
        now = <optimized out>
        unwind_buf = {cancel_jmp_buf = {{jmp_buf = {140639412881152, -6392403382701708756, 0, 0, 140639412881856, 140639412881152, 6384919548189944364, 6384913937721535020}, 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  0x00007fe92e5544dd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:111
No locals.
.
Thread 1 (Thread 0x7fe930345840 (LWP 2744)):
#0  0x00007fe92e490117 in __GI_raise (sig=sig@entry=6) at ../nptl/sysdeps/unix/sysv/linux/raise.c:56
        resultvar = 0
        pid = 2744
        selftid = 2744
#1  0x00007fe92e491808 in __GI_abort () at abort.c:89
        save_stage = 2
        act = {__sigaction_handler = {sa_handler = 0x7fffac39df7c, sa_sigaction = 0x7fffac39df7c}, sa_mask = {__val = {140639481982342, 140639484405576, 194, 4294967295, 140639480621347, 0, 140736082856816, 95314333808, 278, 0, 0, 0, 0, 21474836480, 140639513051136, 140639481997488}}, sa_flags = 780298017, sa_restorer = 0x7fe92e826ad0}
        sigs = {__val = {32, 0 <repeats 15 times>}}
#2  0x00007fe92e488fc6 in __assert_fail_base (fmt=0x7fe92e5da8b0 "%s%s%s:%u: %s%sAssertion `%s' failed.\n%n", assertion=assertion@entry=0x7fe92e826721 "data", file=file@entry=0x7fe92e826748 "plist.c", line=line@entry=194, function=function@entry=0x7fe92e826ad0 "plist_copy_node") at assert.c:92
        str = 0x7fe9312bf900 "\020\005,1\351\177"
        total = 4096
#3  0x00007fe92e489072 in __GI___assert_fail (assertion=0x7fe92e826721 "data", file=0x7fe92e826748 "plist.c", line=194, function=0x7fe92e826ad0 "plist_copy_node") at assert.c:101
No locals.
#4  0x00007fe92e824fbf in ?? () from /tmp/apport_sandbox_ezSwwm/usr/lib/x86_64-linux-gnu/libplist.so.2
No symbol table info available.
#5  0x00007fe92e824fd7 in plist_copy () from /tmp/apport_sandbox_ezSwwm/usr/lib/x86_64-linux-gnu/libplist.so.2
No symbol table info available.
#6  0x00007fe92ea32c33 in lockdownd_pair_record_to_plist (pair_record=0x0) at lockdown.c:827
        dict = 0x7fe92ea3f5fd
#7  lockdownd_do_pair (client=0x7fe9312d10a0, pair_record=0x0, verb=0x7fffac39cda8 "") at lockdown.c:933
        ret = -256
        pair_record_plist = 0x0
        wifi_node = 0x0
        pairing_mode = 0
        request_pair_record = <optimized out>
        options = <optimized out>
#8  0x00007fffac39cdb8 in ?? ()
No symbol table info available.
#9  0x00007fe9312a6410 in ?? ()
No symbol table info available.
#10 0x00007fe92ea33a8f in lockdownd_client_new_with_handshake (device=<optimized out>, client=0x7fffac39cda8, client@entry=0x7fffac39ce68, label=label@entry=0x7fe9303a3965 "upower") at lockdown.c:742
        ret = <optimized out>
        client_loc = 0x7fe9312d10a0
        host_id = 0x0
        type = 0x7fe9312d7200 "\340\004,1\351\177"
        pair_record = 0x0
#11 0x00007fe93039899f in up_device_idevice_coldplug (device=0x7fe9312a6510) at up-device-idevice.c:105
        idevice = 0x7fe9312a6510
        native = 0x7fe93129a610
        uuid = 0x7fe9312d1f10 "f1712bb740f77dd08b8a70d324e6be1c502b6f6f"
        model = <optimized out>
        dict = 0x7fe91c001da0
        node = <optimized out>
        poll_seconds = 0
        dev = 0x7fe9312d4310
        client = 0x0
        kind = <optimized out>
#12 0x00007fe9303912eb in up_device_coldplug (device=device@entry=0x7fe9312a6510, daemon=<optimized out>, native=<optimized out>) at up-device.c:564
        ret = <optimized out>
        native_path = <optimized out>
        klass = 0x7fe9312bbba0
        id = 0x0
        __FUNCTION__ = "up_device_coldplug"
#13 0x00007fe930397547 in up_backend_device_new (native=0x7fe93129a610, backend=0x7fe9312aed00) at up-backend.c:155
        native_path = <optimized out>
        device = 0x7fe9312a6510
        ret = <optimized out>
        subsys = <optimized out>
        input = <optimized out>
#14 up_backend_device_add (backend=backend@entry=0x7fe9312aed00, native=0x7fe93129a610) at up-backend.c:253
        object = <optimized out>
        device = <optimized out>
#15 0x00007fe930397dab in up_backend_coldplug (backend=0x7fe9312aed00, daemon=daemon@entry=0x7fe9312b18c0) at up-backend.c:352
        native = <optimized out>
        devices = 0x7fe9312b2d00
        l = 0x7fe9312b2f20
        i = <optimized out>
        ret = <optimized out>
        subsystems_wup = {0x7fe9303a407e "power_supply", 0x7fe9303a4093 "usb", 0x7fe9303a4097 "usbmisc", 0x7fe9303a408f "tty", 0x7fe9303a409f "input", 0x7fe9303a408b "hid", 0x0}
        subsystems = {0x7fe9303a407e "power_supply", 0x7fe9303a4093 "usb", 0x7fe9303a4097 "usbmisc", 0x7fe9303a409f "input", 0x7fe9303a408b "hid", 0x0}
#16 0x00007fe93038ec07 in up_daemon_startup (daemon=0x7fe9312b18c0) at up-daemon.c:819
        ret = <optimized out>
        on_battery = <optimized out>
        on_low_battery = <optimized out>
        priv = 0x7fe9312b1830
#17 0x00007fe93038ca88 in main (argc=1, argv=0x7fffac39d228) at up-main.c:292
        error = 0x0
        daemon = 0x7fe9312b18c0
        qos = 0x7fe9312989c0
        kbd_backlight = 0x7fe93129c020
        wakeups = 0x7fe93129a3a0
        context = 0x7fe9312912f0
        bus_proxy = <optimized out>
        bus = <optimized out>
        ret = <optimized out>
        retval = 1
        timed_exit = 0
        immediate_exit = 0
        timer_id = 0
        verbose = 0
        options = {{long_name = 0x7fe9303a3cce "timed-exit", short_name = 0 '\000', flags = 0, arg = G_OPTION_ARG_NONE, arg_data = 0x7fffac39d040, description = 0x7fe9303a3cd9 "Exit after a small delay", arg_description = 0x0}, {long_name = 0x7fe9303a3cf2 "immediate-exit", short_name = 0 '\000', flags = 0, arg = G_OPTION_ARG_NONE, arg_data = 0x7fffac39d044, description = 0x7fe9303a3da0 "Exit after the engine has loaded", arg_description = 0x0}, {long_name = 0x7fe9303a3d01 "verbose", short_name = 118 'v', flags = 0, arg = G_OPTION_ARG_NONE, arg_data = 0x7fffac39d048, description = 0x7fe9303a3dc8 "Show extra debugging information", arg_description = 0x0}, {long_name = 0x0, short_name = 0 '\000', flags = 0, arg = G_OPTION_ARG_NONE, arg_data = 0x0, description = 0x0, arg_description = 0x0}}