(gdb) bt full
#0  __libc_do_syscall ()
    at ../ports/sysdeps/unix/sysv/linux/arm/libc-do-syscall.S:44
No locals.
#1  0x402132de in raise (sig=sig@entry=5)
    at ../nptl/sysdeps/unix/sysv/linux/pt-raise.c:38
        _a1 = <optimized out>
        _a3tmp = 5
        _a1tmp = 0
        _a3 = <optimized out>
        _a2tmp = 3143
        _a2 = <optimized out>
        _name = <optimized out>
        _sys_result = <optimized out>
        pid = 0
#2  0x401889ba in g_logv (log_domain=0x4013a250 "GLib-GObject", 
    log_level=log_level@entry=G_LOG_LEVEL_CRITICAL, 
    format=format@entry=0x401bc99c "%s: assertion '%s' failed", args=..., 
    args@entry=...) at /build/buildd/glib2.0-2.38.0/./glib/gmessages.c:989
        domain = 0x0
        data = <optimized out>
        depth = 1
        log_func = <optimized out>
        domain_fatal_mask = <optimized out>
        masquerade_fatal = <optimized out>
        test_level = 10
        was_fatal = 0
        was_recursion = 0
        msg = 0x46ac8 "g_object_unref: assertion 'G_IS_OBJECT (object)' failed"
        msg_alloc = 0x46ac8 "g_object_unref: assertion 'G_IS_OBJECT (object)' failed"
        i = 3
#3  0x40188a74 in g_log (log_domain=<optimized out>, 
    log_level=log_level@entry=G_LOG_LEVEL_CRITICAL, 
    format=0x401bc99c "%s: assertion '%s' failed")
    at /build/buildd/glib2.0-2.38.0/./glib/gmessages.c:1025
        args = {__ap = 0xbefff28c}
#4  0x40188a92 in g_return_if_fail_warning (log_domain=<optimized out>, 
    pretty_function=<optimized out>, expression=<optimized out>)
    at /build/buildd/glib2.0-2.38.0/./glib/gmessages.c:1034
No locals.
#5  0x40181a6c in g_source_callback_unref (cb_data=0x417043d0)
    at /build/buildd/glib2.0-2.38.0/./glib/gmain.c:1549
        cb_data = 0x417043d0
        callback = 0x417043d0
#6  0x40181dd4 in g_source_destroy_internal (source=source@entry=0x41704248, 
    context=context@entry=0x26568, have_lock=have_lock@entry=1)
    at /build/buildd/glib2.0-2.38.0/./glib/gmain.c:1208
        tmp_list = <optimized out>
        old_cb_data = 0x417043d0
        old_cb_funcs = 0x402065b8 <g_source_callback_funcs>
#7  0x40183b9c in g_main_dispatch (context=0x26568)
    at /build/buildd/glib2.0-2.38.0/./glib/gmain.c:3089
        dispatch = <optimized out>
        was_in_call = 0
        user_data = 0x41702400
        callback = 0x400b6c21 <call_in_idle_cb>
        cb_funcs = 0x402065b8 <g_source_callback_funcs>
        cb_data = 0x417043d0
        need_destroy = 1
        current_source_link = {data = 0x41704248, next = 0x0}
        source = 0x41704248
        current = 0x25910
        i = 0
#8  g_main_context_dispatch (context=context@entry=0x26568)
    at /build/buildd/glib2.0-2.38.0/./glib/gmain.c:3641
No locals.
#9  0x40183dca in g_main_context_iterate (context=0x26568, 
    block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>)
    at /build/buildd/glib2.0-2.38.0/./glib/gmain.c:3712
        max_priority = 0
        timeout = 0
        some_ready = 1
        nfds = <optimized out>
        allocated_nfds = <optimized out>
        fds = 0x3cc08
#10 0x401840e8 in g_main_loop_run (loop=0x26660)
    at /build/buildd/glib2.0-2.38.0/./glib/gmain.c:3906
        __PRETTY_FUNCTION__ = "g_main_loop_run"
#11 0x0000c970 in main (argc=<optimized out>, argv=<optimized out>)
    at messages-service.c:252
        mainloop = 0x26660
        flags = <optimized out>
(gdb)