.
Thread 1 (Thread 0x7faef4a82b80 (LWP 352)):
#0  script_obj_deref_direct (obj=0x0) at ./script-object.c:133
No locals.
#1  0x00007faef226f6ff in script_obj_as_custom (obj=<optimized out>, user_func=user_func@entry=0x7faef226ef70 <script_obj_execute>, user_data=user_data@entry=0x7ffc11c15b10) at ./script-object.c:242
        reply = <optimized out>
#2  0x00007faef226ecac in script_execute_object_with_parlist (parameter_data=0x55ba4b4f7600, this=0x0, obj=<optimized out>, state=0x55ba4b3dd390) at ./script-execute.c:287
        execute_data = {state = 0x55ba4b3dd390, this = 0x0, parameter_data = 0x55ba4b4f7600}
        execute_data = <optimized out>
#3  script_execute_object (state=0x55ba4b3dd390, function=<optimized out>, this=this@entry=0x0, first_arg=first_arg@entry=0x0) at ./script-execute.c:649
        reply = <optimized out>
        args = {{gp_offset = 32, fp_offset = 21946, overflow_arg_area = 0x7ffc11c15bb0, reg_save_area = 0x7ffc11c15b50}}
        arg = <optimized out>
        parameter_data = 0x55ba4b4f7600
#4  0x00007faef2272be3 in script_lib_plymouth_on_display_normal (state=<optimized out>, data=<optimized out>) at ./script-lib-plymouth.c:289
        ret = <optimized out>
#5  0x00007faef226ba42 in display_normal (plugin=0x55ba4b3dd2a0) at ./plugin.c:473
No locals.
#6  0x00007faef4459101 in create_text_displays_for_terminal (terminal=0x55ba4b3d1c10, manager=0x55ba4b3d1a70) at ply-device-manager.c:658
        display = 0x55ba4b4f3780
        display = <optimized out>
        _old_errno = <optimized out>
        _old_errno = <optimized out>
#7  create_devices_for_terminal_and_renderer_type (manager=0x55ba4b3d1a70, device_path=<optimized out>, terminal=0x55ba4b3d1c10, renderer_type=<optimized out>) at ply-device-manager.c:735
        renderer = <optimized out>
        keyboard = 0x55ba4b446de0
        __func__ = "create_devices_for_terminal_and_renderer_type"
#8  0x00007faef4670e32 in ply_event_loop_handle_timeouts (loop=0x55ba4b3ca3a0) at ply-event-loop.c:1192
        next_node = <optimized out>
        watch = 0x55ba4b3d1990
        node = 0x55ba4b3e75d0
        now = 10.590881546
        node = <optimized out>
        now = <optimized out>
        next_node = <optimized out>
        watch = <optimized out>
#9  ply_event_loop_process_pending_events (loop=loop@entry=0x55ba4b3ca3a0) at ply-event-loop.c:1251
        timeout = <optimized out>
        number_of_received_events = 0
        i = <optimized out>
        events = {{events = 4294967295, data = {ptr = 0xffffffffffffffff, fd = -1, u32 = 4294967295, u64 = 18446744073709551615}} <repeats 64 times>}
        __PRETTY_FUNCTION__ = "ply_event_loop_process_pending_events"
#10 0x00007faef4671480 in ply_event_loop_run (loop=0x55ba4b3ca3a0) at ply-event-loop.c:1310
No locals.
#11 0x000055ba49be1514 in main (argc=4, argv=0x7ffc11c16f58) at main.c:2390
        state = {loop = 0x55ba4b3ca3a0, boot_server = 0x55ba4b3cce70, boot_splash = 0x55ba4b3d6b10, session = 0x55ba4b3ce1a0, boot_buffer = 0x55ba4b3cd170, progress = 0x55ba4b3d17a0, keystroke_triggers = 0x55ba4b3cbdc0, entry_triggers = 0x55ba4b3cbde0, entry_buffer = 0x55ba4b3cbe00, messages = 0x55ba4b3cce50, command_parser = 0x55ba4b3ca260, mode = PLY_MODE_BOOT, local_console_terminal = 0x55ba4b3d1c10, device_manager = 0x55ba4b3d1a70, deactivate_trigger = 0x0, quit_trigger = 0x0, start_time = 5.5555437300000001, splash_delay = nan(0x8000000000000), device_timeout = 5, kernel_command_line = "BOOT_IMAGE=/@/boot/vmlinuz-4.15.0-041500rc9-generic root=UUID=707d0f89-4b1d-4432-9d50-6058dc4c1ee9 ro rootflags=subvol=@ quiet splash vt.handoff=7\n", '\000' <repeats 3949 times>, kernel_command_line_is_set = 1, no_boot_log = 0, showing_details = 0, system_initialized = 1, is_redirected = 0, is_attached = 0, should_be_attached = 1, should_retain_splash = 0, is_inactive = 1, is_shown = 1, should_force_details = 0, override_splash_path = 0x0, system_default_splash_path = 0x0, distribution_default_splash_path = 0x0, default_tty = 0x55ba49bebcff "/dev/tty1", number_of_errors = 0, pending_messages = 0x55ba4b3cce30}
        exit_code = <optimized out>
        should_help = false
        no_boot_log = false
        no_daemon = false
        debug = false
        attach_to_session = true
        daemon_handle = <optimized out>
        mode_string = 0x55ba4b3cac30 "p\254<K\272U"
        kernel_command_line = 0x0
        tty = 0x0
        device_manager_flags = <optimized out>
        __func__ = "main"