.
Thread 4 (Thread 0x7fcd7455a940 (LWP 13919)):
#0  0x00007fcd733d0ebd in cache_magic_matchlet_compare_to_data (len=1356, data=0x7fff36f4bbb0, offset=<optimized out>, cache=<optimized out>) at /build/buildd/glib2.0-2.32.1/./gio/xdgmime/xdgmimecache.c:199
        valid_matchlet = 1
        i = <optimized out>
        data_length = 11
        j = 0
        range_start = <optimized out>
        data_offset = 107084
        mask_offset = 0
#1  cache_magic_matchlet_compare (cache=0x11af350, offset=<optimized out>, data=0x7fff36f4bbb0, len=1356) at /build/buildd/glib2.0-2.32.1/./gio/xdgmime/xdgmimecache.c:225
        n_children = 0
        child_offset = 0
        i = <optimized out>
#2  0x00007fcd733d1386 in cache_magic_compare_to_data (prio=<synthetic pointer>, len=1356, data=0x7fff36f4bbb0, offset=73804, cache=0x11af350) at /build/buildd/glib2.0-2.32.1/./gio/xdgmime/xdgmimecache.c:257
        i = <optimized out>
        priority = 100
        mimetype_offset = 12424
        n_matchlets = 1
        matchlet_offset = 79884
#3  cache_magic_lookup_data (prio=<synthetic pointer>, len=1356, data=0x7fff36f4bbb0, cache=0x11af350, mime_types=<optimized out>, n_mime_types=<optimized out>) at /build/buildd/glib2.0-2.32.1/./gio/xdgmime/xdgmimecache.c:293
        mime_types = 0x0
        n_entries = 380
        list_offset = <optimized out>
        j = <optimized out>
        n = <optimized out>
        n_mime_types = 0
        offset = 73804
#4  cache_get_mime_type_for_data (result_prio=0x7fff36f4baec, len=1356, data=0x7fff36f4bbb0, mime_types=<optimized out>, n_mime_types=<optimized out>) at /build/buildd/glib2.0-2.32.1/./gio/xdgmime/xdgmimecache.c:710
        cache = 0x11af350
        prio = <optimized out>
        mime_type = <optimized out>
        i = <optimized out>
        priority = <optimized out>
#5  __gio_xdg_cache_get_mime_type_for_data (data=0x7fff36f4bbb0, len=1356, result_prio=0x7fff36f4baec) at /build/buildd/glib2.0-2.32.1/./gio/xdgmime/xdgmimecache.c:740
No locals.
#6  0x00007fcd7331ebf6 in g_content_type_guess (filename=0x0, data=0x7fff36f4bbb0 "\211PNG\r\n\032\n", data_size=1356, result_uncertain=0x7fff36f4bb6c) at /build/buildd/glib2.0-2.32.1/./gio/gcontenttype.c:939
        basename = <optimized out>
        name_mimetypes = {0x855 <Address 0x855 out of bounds>, 0x861c84 <Address 0x861c84 out of bounds>, 0x1 <Address 0x1 out of bounds>, 0x81a4 <Address 0x81a4 out of bounds>, 0x0, 0x0, 0x54c <Address 0x54c out of bounds>, 0x1000 <Address 0x1000 out of bounds>, 0x8 <Address 0x8 out of bounds>, 0x4f8d5163 <Address 0x4f8d5163 out of bounds>}
        sniffed_mimetype = <optimized out>
        mimetype = <optimized out>
        i = <optimized out>
        n_name_mimetypes = <optimized out>
        sniffed_prio = 0
#7  0x00007fcd72ec66b2 in ?? () from /usr/lib/x86_64-linux-gnu/libgdk_pixbuf-2.0.so.0
No symbol table info available.
#8  0x00007fcd72ec6d13 in gdk_pixbuf_new_from_file () from /usr/lib/x86_64-linux-gnu/libgdk_pixbuf-2.0.so.0
No symbol table info available.
#9  0x000000000040ac86 in ?? ()
No symbol table info available.
#10 0x000000000040d2a5 in ?? ()
No symbol table info available.
#11 0x0000000000411f89 in ?? ()
No symbol table info available.
#12 0x00007fcd72a3b6e4 in g_object_newv (object_type=<optimized out>, n_parameters=18748864, parameters=<optimized out>) at /build/buildd/glib2.0-2.32.1/./gobject/gobject.c:1713
        cparams = 0x11d2880
        oparams = 0x0
        nqueue = 0x0
        object = <optimized out>
        class = 0x1277ce0
        unref_class = 0x1277ce0
        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"
#13 0x00007fcd72a3c1ec in g_object_new (object_type=18686272, first_property_name=0x0) at /build/buildd/glib2.0-2.32.1/./gobject/gobject.c:1542
        object = <optimized out>
        var_args = {{gp_offset = 18686272, fp_offset = 0, overflow_arg_area = 0x1134d60, reg_save_area = 0x421d40}}
        __PRETTY_FUNCTION__ = "g_object_new"
#14 0x00000000004199b6 in ?? ()
No symbol table info available.
#15 0x000000000041a527 in ?? ()
No symbol table info available.
#16 0x00007fcd71a9876d in __libc_start_main () from /lib/x86_64-linux-gnu/libc.so.6
No symbol table info available.
#17 0x0000000000409f39 in ?? ()
No symbol table info available.
#18 0x00007fff36f4d098 in ?? ()
No symbol table info available.
#19 0x000000000000001c in ?? ()
No symbol table info available.
#20 0x0000000000000001 in ?? ()
No symbol table info available.
#21 0x00007fff36f4dd9e in ?? ()
No symbol table info available.
#22 0x0000000000000000 in ?? ()
No symbol table info available.
.
Thread 3 (Thread 0x7fcd68fed700 (LWP 13949)):
#0  0x00007fcd71e400fe in pthread_cond_timedwait@@GLIBC_2.3.2 () from /lib/x86_64-linux-gnu/libpthread.so.0
No symbol table info available.
#1  0x00007fcd727b38e5 in g_cond_wait_until (cond=0x1274f98, mutex=<optimized out>, end_time=<optimized out>) at /build/buildd/glib2.0-2.32.1/./glib/gthread-posix.c:855
        ts = {tv_sec = 16326, tv_nsec = 384216000}
        status = <optimized out>
#2  0x00007fcd7274e1c1 in g_async_queue_pop_intern_unlocked (queue=0x1274f90, wait=1, end_time=16326384216) at /build/buildd/glib2.0-2.32.1/./glib/gasyncqueue.c:424
        retval = <optimized out>
        __PRETTY_FUNCTION__ = "g_async_queue_pop_intern_unlocked"
#3  0x00007fcd7279a22a in g_thread_pool_wait_for_new_task (pool=0x11e3670) at /build/buildd/glib2.0-2.32.1/./glib/gthreadpool.c:264
        task = <optimized out>
#4  g_thread_pool_thread_proxy (data=<optimized out>) at /build/buildd/glib2.0-2.32.1/./glib/gthreadpool.c:298
        task = 0x1272740
        pool = 0x11e3670
#5  0x00007fcd727999a5 in g_thread_proxy (data=0x12730f0) at /build/buildd/glib2.0-2.32.1/./glib/gthread.c:801
        thread = 0x12730f0
#6  0x00007fcd71e3be9a in start_thread () from /lib/x86_64-linux-gnu/libpthread.so.0
No symbol table info available.
#7  0x00007fcd71b694bd in clone () from /lib/x86_64-linux-gnu/libc.so.6
No symbol table info available.
#8  0x0000000000000000 in ?? ()
No symbol table info available.
.
Thread 2 (Thread 0x7fcd6a250700 (LWP 13923)):
#0  0x00007fcd71b5db03 in poll () from /lib/x86_64-linux-gnu/libc.so.6
No symbol table info available.
#1  0x00007fcd72777ff6 in g_main_context_poll (n_fds=3, fds=0x7fcd5c0010c0, timeout=-1, context=0x7fcd64010650, priority=<optimized out>) at /build/buildd/glib2.0-2.32.1/./glib/gmain.c:3417
        poll_func = 0x7fcd72784f00 <g_poll>
#2  g_main_context_iterate (dispatch=1, block=<optimized out>, context=0x7fcd64010650, self=<optimized out>) at /build/buildd/glib2.0-2.32.1/./glib/gmain.c:3118
        timeout = -1
        some_ready = <optimized out>
        fds = 0x7fcd5c0010c0
        max_priority = 2147483647
        nfds = 3
        allocated_nfds = <optimized out>
#3  g_main_context_iterate (context=0x7fcd64010650, block=<optimized out>, dispatch=1, self=<optimized out>) at /build/buildd/glib2.0-2.32.1/./glib/gmain.c:3060
        some_ready = 1543508160
#4  0x00007fcd7277845a in g_main_loop_run (loop=0x7fcd64010600) at /build/buildd/glib2.0-2.32.1/./glib/gmain.c:3317
        __PRETTY_FUNCTION__ = "g_main_loop_run"
#5  0x00007fcd733b22c6 in gdbus_shared_thread_func (user_data=<optimized out>) at /build/buildd/glib2.0-2.32.1/./gio/gdbusprivate.c:277
        data = 0x7fcd64010620
#6  0x00007fcd727999a5 in g_thread_proxy (data=0x7fcd6400c940) at /build/buildd/glib2.0-2.32.1/./glib/gthread.c:801
        thread = 0x7fcd6400c940
#7  0x00007fcd71e3be9a in start_thread () from /lib/x86_64-linux-gnu/libpthread.so.0
No symbol table info available.
#8  0x00007fcd71b694bd in clone () from /lib/x86_64-linux-gnu/libc.so.6
No symbol table info available.
#9  0x0000000000000000 in ?? ()
No symbol table info available.
.
Thread 1 (Thread 0x7fcd6b0e4700 (LWP 13922)):
#0  0x00007fcd7338dbba in g_settings_backend_dispatch_signal (backend=0x114c010, function_offset=8, name=0x11e11f0 "/com/canonical/unity-greeter/", data1=0x0, data1_copy=0x7fcd7338d6a0 <pointer_id>, data1_free=0x7fcd7338d6b0 <pointer_ignore>, data2=0x0) at /build/buildd/glib2.0-2.32.1/./gio/gsettingsbackend.c:340
        closure = <optimized out>
        suffix = 0x1282860
        watch = <optimized out>
        next = <optimized out>
#1  0x00007fcd7338e124 in g_settings_backend_path_changed (backend=0x114c010, path=0x11e11f0 "/com/canonical/unity-greeter/", origin_tag=0x0) at /build/buildd/glib2.0-2.32.1/./gio/gsettingsbackend.c:496
        __PRETTY_FUNCTION__ = "g_settings_backend_path_changed"
#2  0x00007fcd6b9265fa in ?? () from /usr/lib/x86_64-linux-gnu/gio/modules/libdconfsettings.so
No symbol table info available.
#3  0x00007fcd73355f57 in g_simple_async_result_complete (simple=0x7fcd6400e9e0) at /build/buildd/glib2.0-2.32.1/./gio/gsimpleasyncresult.c:767
        current_source = 0x7fcd5c001190
        current_context = 0x0
        __PRETTY_FUNCTION__ = "g_simple_async_result_complete"
#4  0x00007fcd733a467a in g_dbus_connection_call_done (source=<optimized out>, result=<optimized out>, user_data=0x11cf290) at /build/buildd/glib2.0-2.32.1/./gio/gdbusconnection.c:5289
        simple = 0x7fcd6400e9e0
        connection = <optimized out>
        state = 0x11cf290
        error = 0x0
        reply = 0x1273320
#5  0x00007fcd73355f57 in g_simple_async_result_complete (simple=0x7fcd64022870) at /build/buildd/glib2.0-2.32.1/./gio/gsimpleasyncresult.c:767
        current_source = 0x7fcd5c001190
        current_context = 0x0
        __PRETTY_FUNCTION__ = "g_simple_async_result_complete"
#6  0x00007fcd73356059 in complete_in_idle_cb (data=<optimized out>) at /build/buildd/glib2.0-2.32.1/./gio/gsimpleasyncresult.c:779
        simple = <optimized out>
#7  0x00007fcd72777c9a in g_main_dispatch (context=0x114ca40) at /build/buildd/glib2.0-2.32.1/./glib/gmain.c:2515
        dispatch = 0x7fcd727758f0 <g_idle_dispatch>
        was_in_call = 0
        user_data = 0x7fcd64022870
        callback = 0x7fcd73356050 <complete_in_idle_cb>
        cb_funcs = 0x7fcd72a239a0
        cb_data = 0x7fcd5c006030
        current_source_link = {data = 0x7fcd5c001190, next = 0x0}
        need_destroy = <optimized out>
        source = 0x7fcd5c001190
        current = 0x11370c0
        i = <optimized out>
#8  g_main_context_dispatch (context=0x114ca40) at /build/buildd/glib2.0-2.32.1/./glib/gmain.c:3052
No locals.
#9  0x00007fcd72778060 in g_main_context_iterate (dispatch=1, block=<optimized out>, context=0x114ca40, self=<optimized out>) at /build/buildd/glib2.0-2.32.1/./glib/gmain.c:3123
        timeout = 119944
        some_ready = 1
        fds = <optimized out>
        max_priority = 2147483647
        nfds = 1
        allocated_nfds = <optimized out>
#10 g_main_context_iterate (context=0x114ca40, block=<optimized out>, dispatch=1, self=<optimized out>) at /build/buildd/glib2.0-2.32.1/./glib/gmain.c:3060
        some_ready = 1
#11 0x00007fcd7277845a in g_main_loop_run (loop=0x7fcd640010c0) at /build/buildd/glib2.0-2.32.1/./glib/gmain.c:3317
        __PRETTY_FUNCTION__ = "g_main_loop_run"
#12 0x00007fcd6b92598b in ?? () from /usr/lib/x86_64-linux-gnu/gio/modules/libdconfsettings.so
No symbol table info available.
#13 0x00007fcd727999a5 in g_thread_proxy (data=0x1145630) at /build/buildd/glib2.0-2.32.1/./glib/gthread.c:801
        thread = 0x1145630
#14 0x00007fcd71e3be9a in start_thread () from /lib/x86_64-linux-gnu/libpthread.so.0
No symbol table info available.
#15 0x00007fcd71b694bd in clone () from /lib/x86_64-linux-gnu/libc.so.6
No symbol table info available.
#16 0x0000000000000000 in ?? ()
No symbol table info available.