.
Thread 4 (Thread 0x7fe903312700 (LWP 9828)):
#0  0x00007fe9092e2b03 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  0x00007fe90981dfa4 in g_main_context_poll (n_fds=5, fds=0x7fe8fc0055b0, timeout=-1, context=0x1564c10, priority=<optimized out>) at /build/buildd/glib2.0-2.33.8/./glib/gmain.c:3576
        poll_func = 0x7fe90982be20 <g_poll>
#2  g_main_context_iterate (context=0x1564c10, block=block@entry=1, dispatch=dispatch@entry=1, self=<error reading variable: Unhandled dwarf expression opcode 0xfa>) at /build/buildd/glib2.0-2.33.8/./glib/gmain.c:3277
        max_priority = 2147483647
        timeout = -1
        some_ready = <optimized out>
        nfds = 5
        allocated_nfds = <optimized out>
        fds = 0x7fe8fc0055b0
#3  0x00007fe90981e402 in g_main_loop_run (loop=0x1564ba0) at /build/buildd/glib2.0-2.33.8/./glib/gmain.c:3476
        __PRETTY_FUNCTION__ = "g_main_loop_run"
#4  0x00007fe909df2636 in gdbus_shared_thread_func (user_data=0x1564be0) at /build/buildd/glib2.0-2.33.8/./gio/gdbusprivate.c:277
        data = 0x1564be0
#5  0x00007fe909840e05 in g_thread_proxy (data=0x1561ed0) at /build/buildd/glib2.0-2.33.8/./glib/gthread.c:801
        thread = 0x1561ed0
#6  0x00007fe9095c0e9a in start_thread (arg=0x7fe903312700) at pthread_create.c:308
        __res = <optimized out>
        pd = 0x7fe903312700
        now = <optimized out>
        unwind_buf = {cancel_jmp_buf = {{jmp_buf = {0, 3843222196918091803, 140735473684208, 140638757661120, 0, 3, -3852873066924015589, -3852886098330845157}, 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  0x00007fe9092ee4bd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
No locals.
#8  0x0000000000000000 in ?? ()
No symbol table info available.
.
Thread 3 (Thread 0x7fe9018c9700 (LWP 9830)):
#0  0x00007fe9092e2b03 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  0x00007fe90981dfa4 in g_main_context_poll (n_fds=1, fds=0x7fe8f80010c0, timeout=-1, context=0x15737b0, priority=<optimized out>) at /build/buildd/glib2.0-2.33.8/./glib/gmain.c:3576
        poll_func = 0x7fe90982be20 <g_poll>
#2  g_main_context_iterate (context=context@entry=0x15737b0, block=block@entry=1, dispatch=dispatch@entry=1, self=<error reading variable: Unhandled dwarf expression opcode 0xfa>) at /build/buildd/glib2.0-2.33.8/./glib/gmain.c:3277
        max_priority = 2147483647
        timeout = -1
        some_ready = <optimized out>
        nfds = 1
        allocated_nfds = <optimized out>
        fds = 0x7fe8f80010c0
#3  0x00007fe90981e0c4 in g_main_context_iteration (context=context@entry=0x15737b0, may_block=may_block@entry=1) at /build/buildd/glib2.0-2.33.8/./glib/gmain.c:3343
        retval = <optimized out>
#4  0x00007fe90210c35d in dconf_gdbus_worker_thread (user_data=0x15737b0) at dconf-gdbus-thread.c:81
        context = 0x15737b0
#5  0x00007fe909840e05 in g_thread_proxy (data=0x7fe8fc003f20) at /build/buildd/glib2.0-2.33.8/./glib/gthread.c:801
        thread = 0x7fe8fc003f20
#6  0x00007fe9095c0e9a in start_thread (arg=0x7fe9018c9700) at pthread_create.c:308
        __res = <optimized out>
        pd = 0x7fe9018c9700
        now = <optimized out>
        unwind_buf = {cancel_jmp_buf = {{jmp_buf = {0, 3843222196918091803, 140735473683184, 140638730099136, 0, 3, -3852867823305818085, -3852886098330845157}, 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  0x00007fe9092ee4bd 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 0x7fe8f1ad5700 (LWP 9841)):
#0  pthread_cond_timedwait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_timedwait.S:215
No locals.
#1  0x00007fe90985a595 in g_cond_wait_until (cond=cond@entry=0x156a2b8, mutex=mutex@entry=0x156a2b0, end_time=end_time@entry=29611404196) at /build/buildd/glib2.0-2.33.8/./glib/gthread-posix.c:855
        ts = {tv_sec = 29611, tv_nsec = 404196000}
        status = <optimized out>
#2  0x00007fe9097f44a1 in g_async_queue_pop_intern_unlocked (queue=0x156a2b0, wait=wait@entry=1, end_time=29611404196) at /build/buildd/glib2.0-2.33.8/./glib/gasyncqueue.c:424
        retval = <optimized out>
        __PRETTY_FUNCTION__ = "g_async_queue_pop_intern_unlocked"
#3  0x00007fe9097f4b48 in g_async_queue_timeout_pop_unlocked (queue=<optimized out>, timeout=timeout@entry=500000) at /build/buildd/glib2.0-2.33.8/./glib/gasyncqueue.c:572
        end_time = <optimized out>
#4  0x00007fe90984150a in g_thread_pool_wait_for_new_task (pool=0x1569870) at /build/buildd/glib2.0-2.33.8/./glib/gthreadpool.c:264
        task = <optimized out>
#5  g_thread_pool_thread_proxy (data=<optimized out>) at /build/buildd/glib2.0-2.33.8/./glib/gthreadpool.c:298
        task = 0x164ecb0
        pool = 0x1569870
#6  0x00007fe909840e05 in g_thread_proxy (data=0x15ca8f0) at /build/buildd/glib2.0-2.33.8/./glib/gthread.c:801
        thread = 0x15ca8f0
#7  0x00007fe9095c0e9a in start_thread (arg=0x7fe8f1ad5700) at pthread_create.c:308
        __res = <optimized out>
        pd = 0x7fe8f1ad5700
        now = <optimized out>
        unwind_buf = {cancel_jmp_buf = {{jmp_buf = {0, 3843222196918091803, 140735473683024, 140638463809984, 0, 3, -3853887884481069029, -3852886098330845157}, 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  0x00007fe9092ee4bd 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 0x7fe90af8f940 (LWP 9826)):
#0  0x00007fe909d63bf4 in g_file_make_directory_with_parents (file=file@entry=0x1654360, cancellable=cancellable@entry=0x7fe8fc005060, error=error@entry=0x7fff87ea8ee8) at /build/buildd/glib2.0-2.33.8/./gio/gfile.c:3383
        result = 0
        work_file = 0x1621380
        list = <optimized out>
        l = <optimized out>
        my_error = 0x0
        __PRETTY_FUNCTION__ = "g_file_make_directory_with_parents"
#1  0x00007fe8ea84f152 in gcm_profile_store_mkdir_with_parents (error=0x7fff87ea8ee8, cancellable=0x7fe8fc005060, filename=0x164daa0 "/var/lib/lightdm/.local/share/icc") at gcm-profile-store.c:428
        ret = <optimized out>
        file = 0x1654360
#2  gcm_profile_store_search (profile_store=0x7fe8f800ea00) at gcm-profile-store.c:443
        path = 0x164daa0 "/var/lib/lightdm/.local/share/icc"
        ret = -67088288
        error = 0x0
#3  0x00007fe8ea851815 in gcm_session_client_connect_cb (source_object=<optimized out>, res=0x164ff30, user_data=user_data@entry=0x164fd70) at gsd-color-manager.c:1609
        ret = <optimized out>
        error = 0x0
        outputs = <optimized out>
        i = <optimized out>
        manager = 0x164fd70
        priv = 0x164fd90
#4  0x00007fe909d8f44e in g_simple_async_result_complete (simple=0x164ff30) at /build/buildd/glib2.0-2.33.8/./gio/gsimpleasyncresult.c:775
        current_source = <optimized out>
        current_context = <optimized out>
        __PRETTY_FUNCTION__ = "g_simple_async_result_complete"
#5  0x00007fe909d8f57c in complete_in_idle_cb (data=0x164ff30) at /build/buildd/glib2.0-2.33.8/./gio/gsimpleasyncresult.c:787
        simple = <optimized out>
#6  0x00007fe90981dcd5 in g_main_dispatch (context=0x152e840) at /build/buildd/glib2.0-2.33.8/./glib/gmain.c:2707
        dispatch = 0x7fe90981b120 <g_idle_dispatch>
        was_in_call = 0
        user_data = 0x164ff30
        callback = 0x7fe909d8f560 <complete_in_idle_cb>
        cb_funcs = 0x7fe909aca9a0
        cb_data = 0x164f0f0
        current_source_link = {data = 0x166a290, next = 0x0}
        need_destroy = <optimized out>
        source = 0x166a290
        current = 0x1562b50
        i = <optimized out>
#7  g_main_context_dispatch (context=context@entry=0x152e840) at /build/buildd/glib2.0-2.33.8/./glib/gmain.c:3211
No locals.
#8  0x00007fe90981e008 in g_main_context_iterate (context=0x152e840, block=block@entry=1, dispatch=dispatch@entry=1, self=<error reading variable: Unhandled dwarf expression opcode 0xfa>) at /build/buildd/glib2.0-2.33.8/./glib/gmain.c:3282
        max_priority = 0
        timeout = 0
        some_ready = 1
        nfds = <optimized out>
        allocated_nfds = <optimized out>
        fds = 0x174c040
#9  0x00007fe90981e402 in g_main_loop_run (loop=0x156aa40) at /build/buildd/glib2.0-2.33.8/./glib/gmain.c:3476
        __PRETTY_FUNCTION__ = "g_main_loop_run"
#10 0x00007fe90a21fd45 in gtk_main () at /build/buildd/gtk+3.0-3.5.10/./gtk/gtkmain.c:1162
        loop = 0x156aa40
#11 0x0000000000403861 in main (argc=1, argv=0x7fff87ea91b8) at main.c:464
        res = <optimized out>
        error = 0x0