.
Thread 3 (Thread 0x7ffddeaec700 (LWP 2437)):
#0  0x00007ffddff90441 in umount2 () at ../sysdeps/unix/sysv/linux/umount2.S:11
No locals.
#1  0x00007ffde0262dc0 in ?? () at pthread_create.c:172 from /tmp/tmpsdqvYM/lib/x86_64-linux-gnu/libpthread.so.0
No symbol table info available.
#2  0x00007ffddeaec700 in ?? ()
No symbol table info available.
#3  0x0000000000000000 in ?? ()
No symbol table info available.
.
Thread 2 (Thread 0x7ffdde2eb700 (LWP 1818)):
#0  0x00007ffddff84ac3 in ppoll (fds=<optimized out>, nfds=<optimized out>, timeout=<optimized out>, sigmask=<optimized out>) at ../sysdeps/unix/sysv/linux/ppoll.c:60
        oldtype = 1818
        tval = {tv_sec = 1, tv_nsec = 140728366530468}
        result = 1
#1  0xffffffff7fffffff in ?? ()
No symbol table info available.
#2  0x00007ffddeaebc00 in ?? ()
No symbol table info available.
#3  0x00007ffdd800b2f0 in ?? ()
No symbol table info available.
#4  0x0000000000000000 in ?? ()
No symbol table info available.
.
Thread 1 (Thread 0x7ffddeaed7c0 (LWP 1805)):
#0  cd_profile_register_object (profile=profile@entry=0x1a7e1f0, connection=<optimized out>, info=<optimized out>, error=0x7fff88c2e430) at cd-profile.c:661
        error_local = 0x0
        ret = 0
        interface_vtable = {method_call = 0x40f820 <cd_profile_dbus_method_call>, get_property = 0x40df90 <cd_profile_dbus_get_property>, set_property = 0, padding = {0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0}}
#1  0x0000000000414036 in cd_main_profile_register_on_bus (profile=0x1a7e1f0, error=<optimized out>) at cd-main.c:651
        ret = <optimized out>
#2  0x00000000004150df in cd_main_daemon_method_call (connection_=<optimized out>, sender=<optimized out>, object_path=<optimized out>, interface_name=interface_name@entry=0x7ffdd00073c0 "org.freedesktop.ColorManager", method_name=method_name@entry=0x7ffdd0005190 "CreateProfileWithFd", parameters=<optimized out>, invocation=invocation@entry=0x1a87120, user_data=user_data@entry=0x0) at cd-main.c:1223
        device = 0x0
        scope = <optimized out>
        profile = <optimized out>
        prop_key = 0x1a88b90 "Filename"
        prop_value = 0x1a88b99 "/tmp/guest-rc9cuU/.local/share/icc/edid-16fb7eaf0578599b5e904e5b3814c27a.icc"
        register_on_bus = 1
        ret = <optimized out>
        device_id = 0x1a88b30 "icc-d69e05c16ab76fdae835ddb39d58ac50"
        scope_tmp = 0x1a88b55 "temp"
        error = 0x0
        array = 0x0
        iter = 0x1a89c50
        tuple = 0x0
        value = 0x0
        fd = <optimized out>
        uid = <optimized out>
        fd_handle = 0
        metadata_key = 0x0
        metadata_value = 0x0
        message = <optimized out>
        fd_list = 0x1a8c2a0
#3  0x00007ffde0c87f02 in call_in_idle_cb (user_data=<optimized out>) at /build/buildd/glib2.0-2.33.8/./gio/gdbusconnection.c:4737
        invocation = 0x1a87120
        vtable = <optimized out>
        registration_id = <optimized out>
        subtree_registration_id = <optimized out>
        __PRETTY_FUNCTION__ = "call_in_idle_cb"
#4  0x00007ffde04bfcd5 in g_main_dispatch (context=0x1a315c0) at /build/buildd/glib2.0-2.33.8/./glib/gmain.c:2707
        dispatch = 0x7ffde04bd120 <g_idle_dispatch>
        was_in_call = 0
        user_data = 0x1a87120
        callback = 0x7ffde0c87dc0 <call_in_idle_cb>
        cb_funcs = 0x7ffde076c9a0
        cb_data = 0x7ffdd00055e0
        current_source_link = {data = 0x7ffdd0005670, next = 0x0}
        need_destroy = <optimized out>
        source = 0x7ffdd0005670
        current = 0x1a2c430
        i = <optimized out>
#5  g_main_context_dispatch (context=context@entry=0x1a315c0) at /build/buildd/glib2.0-2.33.8/./glib/gmain.c:3211
No locals.
#6  0x00007ffde04c0008 in g_main_context_iterate (context=0x1a315c0, 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 = 2147483647
        timeout = -1
        some_ready = 1
        nfds = <optimized out>
        allocated_nfds = <optimized out>
        fds = 0x1a5dd60
#7  0x00007ffde04c0402 in g_main_loop_run (loop=0x1a316e0) at /build/buildd/glib2.0-2.33.8/./glib/gmain.c:3476
        __PRETTY_FUNCTION__ = "g_main_loop_run"
#8  0x0000000000407b93 in main (argc=1, argv=0x7fff88c2e7b8) at cd-main.c:1964
        context = <optimized out>
        error = 0x0
        immediate_exit = 0
        ret = <optimized out>
        timed_exit = 0
        owner_id = 1
        retval = 1
        options = {{long_name = 0x41a170 "timed-exit", short_name = 0 '\000', flags = 0, arg = G_OPTION_ARG_NONE, arg_data = 0x7fff88c2e624, description = 0x41a17b "Exit after a small delay", arg_description = 0x0}, {long_name = 0x41a194 "immediate-exit", short_name = 0 '\000', flags = 0, arg = G_OPTION_ARG_NONE, arg_data = 0x7fff88c2e620, description = 0x41aba8 "Exit after the engine has loaded", 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}}