Thread 5 (Thread 0x7f80879b7700 (LWP 2125)):
#0  0x00007f80916bc8dd in poll () at ../sysdeps/unix/syscall-template.S:81
#1  0x00007f8091bf2f7c in g_main_context_iterate (priority=2147483647, n_fds=4, fds=0x7f80780096a0, timeout=-1, context=0x146a2c0) at /build/glib2.0-oVi7VK/glib2.0-2.45.3/./glib/gmain.c:4103
        poll_func = 0x7f8091c02500 <g_poll>
        max_priority = 2147483647
        timeout = -1
        some_ready = <optimised out>
        nfds = 4
        allocated_nfds = 4
        fds = 0x7f80780096a0
#2  0x00007f8091bf2f7c in g_main_context_iterate (context=0x146a2c0, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimised out>) at /build/glib2.0-oVi7VK/glib2.0-2.45.3/./glib/gmain.c:3803
        max_priority = 2147483647
        timeout = -1
        some_ready = <optimised out>
        nfds = 4
        allocated_nfds = 4
        fds = 0x7f80780096a0
#3  0x00007f8091bf3302 in g_main_loop_run (loop=0x1469120) at /build/glib2.0-oVi7VK/glib2.0-2.45.3/./glib/gmain.c:4002
        __FUNCTION__ = "g_main_loop_run"
#4  0x00007f80923fa716 in gdbus_shared_thread_func (user_data=0x1469140) at /build/glib2.0-oVi7VK/glib2.0-2.45.3/./gio/gdbusprivate.c:246
        data = 0x1469140
#5  0x00007f8091c19ab5 in g_thread_proxy (data=0x14111e0) at /build/glib2.0-oVi7VK/glib2.0-2.45.3/./glib/gthread.c:764
        thread = 0x14111e0
#6  0x00007f80919926aa in start_thread (arg=0x7f80879b7700) at pthread_create.c:333
        __res = <optimised out>
        pd = 0x7f80879b7700
        now = <optimised out>
        unwind_buf = 
              {cancel_jmp_buf = {{jmp_buf = {140190007654144, -6187440328249382116, 0, 140726245030591, 140190007654848, 21401920, 6134119275130317596, 6134158876559207196}, mask_was_saved = 0}}, priv = {pad = {0x0, 0x0, 0x0, 0x0}, data = {prev = 0x0, cleanup = 0x0, canceltype = 0}}}
        not_first_call = <optimised out>
        pagesize_m1 = <optimised out>
        sp = <optimised out>
        freesize = <optimised out>
        __PRETTY_FUNCTION__ = "start_thread"
#7  0x00007f80916c7eed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 4 (Thread 0x7f807680c700 (LWP 2128)):
#0  0x00007f80916c25a9 in syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38
#1  0x00007f8091c379df in g_cond_wait (cond=0x1669c50, mutex=0x1669c60) at /build/glib2.0-oVi7VK/glib2.0-2.45.3/./glib/gthread-posix.c:1397
        sampled = 0
#2  0x000000000040c002 in pam_conversation (resp=0x7f806c001cc0, msg=0x7f806c001d40 "Password: ", style=GS_AUTH_MESSAGE_PROMPT_ECHO_OFF, c=0x7ffd61d889f0) at gs-auth-pam.c:239
        data = {closure = 0x7ffd61d889f0, style = GS_AUTH_MESSAGE_PROMPT_ECHO_OFF, msg = 0x7f806c001d40 "Password: ", resp = 0x7f806c001cc0, should_interrupt_stack = 1}
        style = GS_AUTH_MESSAGE_PROMPT_ECHO_OFF
        utf8_msg = 0x7f806c001d40 "Password: "
        replies = 0
        reply = 0x7f806c001cc0
        c = <optimised out>
        ret = 0
#3  0x000000000040c002 in pam_conversation (nmsgs=<optimised out>, msg=0x7f807680b8b8, resp=0x7f807680b8b0, closure=0x7ffd61d889f0) at gs-auth-pam.c:311
        style = GS_AUTH_MESSAGE_PROMPT_ECHO_OFF
        utf8_msg = 0x7f806c001d40 "Password: "
        replies = 0
        reply = 0x7f806c001cc0
        c = <optimised out>
        ret = 0
#4  0x00007f8091ebfe90 in pam_vprompt () at /lib/x86_64-linux-gnu/libpam.so.0
#5  0x00007f8091ec00ea in pam_prompt () at /lib/x86_64-linux-gnu/libpam.so.0
#6  0x00007f80848116f8 in  () at /lib/x86_64-linux-gnu/security/pam_unix.so
#7  0x00007f808480e574 in pam_sm_authenticate () at /lib/x86_64-linux-gnu/security/pam_unix.so
#8  0x00007f8091ebadcf in  () at /lib/x86_64-linux-gnu/libpam.so.0
#9  0x00007f8091eba65d in pam_authenticate () at /lib/x86_64-linux-gnu/libpam.so.0
#10 0x000000000040bc1d in gs_auth_thread_func (auth_operation_fd=15) at gs-auth-pam.c:497
        status = <optimised out>
        status2 = <optimised out>
        timeout = {tv_sec = 0, tv_nsec = 1}
        set = {__val = {69632, 0 <repeats 15 times>}}
        p = 0x0
#11 0x00007f8091c19ab5 in g_thread_proxy (data=0x15cce80) at /build/glib2.0-oVi7VK/glib2.0-2.45.3/./glib/gthread.c:764
        thread = 0x15cce80
#12 0x00007f80919926aa in start_thread (arg=0x7f807680c700) at pthread_create.c:333
        __res = <optimised out>
        pd = 0x7f807680c700
        now = <optimised out>
        unwind_buf = 
              {cancel_jmp_buf = {{jmp_buf = {140189720692480, -6187440328249382116, 0, 140726245034063, 140189720693184, 15, 6134226828090731292, 6134158876559207196}, mask_was_saved = 0}}, priv = {pad = {0x0, 0x0, 0x0, 0x0}, data = {prev = 0x0, cleanup = 0x0, canceltype = 0}}}
        not_first_call = <optimised out>
        pagesize_m1 = <optimised out>
        sp = <optimised out>
        freesize = <optimised out>
        __PRETTY_FUNCTION__ = "start_thread"
#13 0x00007f80916c7eed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 3 (Thread 0x7f8085226700 (LWP 2127)):
#0  0x00007f80916c25a9 in syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38
#1  0x00007f8091c37afa in g_cond_wait_until (cond=cond@entry=0x14687a8, mutex=mutex@entry=0x14687a0, end_time=end_time@entry=1917415894)
    at /build/glib2.0-oVi7VK/glib2.0-2.45.3/./glib/gthread-posix.c:1444
        now = {tv_sec = 1902, tv_nsec = 415895416}
        span = {tv_sec = 14, tv_nsec = 999998584}
        sampled = 0
        res = <optimised out>
#2  0x00007f8091bc7929 in g_async_queue_pop_intern_unlocked (queue=queue@entry=0x14687a0, wait=wait@entry=1, end_time=end_time@entry=1917415894)
    at /build/glib2.0-oVi7VK/glib2.0-2.45.3/./glib/gasyncqueue.c:422
        retval = <optimised out>
        __FUNCTION__ = "g_async_queue_pop_intern_unlocked"
#3  0x00007f8091bc7f4b in g_async_queue_timeout_pop (queue=0x14687a0, timeout=timeout@entry=15000000) at /build/glib2.0-oVi7VK/glib2.0-2.45.3/./glib/gasyncqueue.c:543
        end_time = 1917415894
        retval = <optimised out>
#4  0x00007f8091c1a50c in g_thread_pool_thread_proxy () at /build/glib2.0-oVi7VK/glib2.0-2.45.3/./glib/gthreadpool.c:167
        pool = <optimised out>
        local_wakeup_thread_serial = <optimised out>
        last_wakeup_thread_serial = <optimised out>
        have_relayed_thread_marker = <optimised out>
        free_pool = <optimised out>
        task = 0x2
        pool = <optimised out>
#5  0x00007f8091c1a50c in g_thread_pool_thread_proxy (data=<optimised out>) at /build/glib2.0-oVi7VK/glib2.0-2.45.3/./glib/gthreadpool.c:364
        free_pool = <optimised out>
        task = 0x2
        pool = <optimised out>
#6  0x00007f8091c19ab5 in g_thread_proxy (data=0x15cd0a0) at /build/glib2.0-oVi7VK/glib2.0-2.45.3/./glib/gthread.c:764
        thread = 0x15cd0a0
#7  0x00007f80919926aa in start_thread (arg=0x7f8085226700) at pthread_create.c:333
        __res = <optimised out>
        pd = 0x7f8085226700
        now = <optimised out>
        unwind_buf = 
              {cancel_jmp_buf = {{jmp_buf = {140189966165760, -6187440328249382116, 0, 140726245033023, 140189966166464, 21399280, 6134115488579775260, 6134158876559207196}, mask_was_saved = 0}}, priv = {pad = {0x0, 0x0, 0x0, 0x0}, data = {prev = 0x0, cleanup = 0x0, canceltype = 0}}}
        not_first_call = <optimised out>
        pagesize_m1 = <optimised out>
        sp = <optimised out>
        freesize = <optimised out>
        __PRETTY_FUNCTION__ = "start_thread"
#8  0x00007f80916c7eed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 2 (Thread 0x7f80881b8700 (LWP 2124)):
#0  0x00007f80916bc8dd in poll () at ../sysdeps/unix/syscall-template.S:81
#1  0x00007f8091bf2f7c in g_main_context_iterate (priority=2147483647, n_fds=2, fds=0x7f80800008e0, timeout=-1, context=0x1468890) at /build/glib2.0-oVi7VK/glib2.0-2.45.3/./glib/gmain.c:4103
        poll_func = 0x7f8091c02500 <g_poll>
        max_priority = 2147483647
        timeout = -1
        some_ready = <optimised out>
        nfds = 2
        allocated_nfds = 2
        fds = 0x7f80800008e0
#2  0x00007f8091bf2f7c in g_main_context_iterate (context=context@entry=0x1468890, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimised out>)
    at /build/glib2.0-oVi7VK/glib2.0-2.45.3/./glib/gmain.c:3803
        max_priority = 2147483647
        timeout = -1
        some_ready = <optimised out>
        nfds = 2
        allocated_nfds = 2
        fds = 0x7f80800008e0
#3  0x00007f8091bf308c in g_main_context_iteration (context=0x1468890, may_block=may_block@entry=1) at /build/glib2.0-oVi7VK/glib2.0-2.45.3/./glib/gmain.c:3869
        retval = <optimised out>
#4  0x00007f8091bf30c9 in glib_worker_main (data=<optimised out>) at /build/glib2.0-oVi7VK/glib2.0-2.45.3/./glib/gmain.c:5622
#5  0x00007f8091c19ab5 in g_thread_proxy (data=0x1411230) at /build/glib2.0-oVi7VK/glib2.0-2.45.3/./glib/gthread.c:764
        thread = 0x1411230
#6  0x00007f80919926aa in start_thread (arg=0x7f80881b8700) at pthread_create.c:333
        __res = <optimised out>
        pd = 0x7f80881b8700
        now = <optimised out>
        unwind_buf = 
              {cancel_jmp_buf = {{jmp_buf = {140190016046848, -6187440328249382116, 0, 140726245030239, 140190016047552, 0, 6134144564434627356, 6134158876559207196}, mask_was_saved = 0}}, priv = {pad = {0x0, 0x0, 0x0, 0x0}, data = {prev = 0x0, cleanup = 0x0, canceltype = 0}}}
        not_first_call = <optimised out>
        pagesize_m1 = <optimised out>
        sp = <optimised out>
        freesize = <optimised out>
        __PRETTY_FUNCTION__ = "start_thread"
#7  0x00007f80916c7eed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 1 (Thread 0x7f8093bbf980 (LWP 2123)):
#0  0x00007f80920e930d in g_signal_handler_disconnect (handler=0x1720120, instance=0x158e350, signal_id=<optimised out>) at /build/glib2.0-oVi7VK/glib2.0-2.45.3/./gobject/gsignal.c:634
        hlist = <optimised out>
        handler = 0x1720120
        __FUNCTION__ = "g_signal_handler_disconnect"
#1  0x00007f80920e930d in g_signal_handler_disconnect (instance=instance@entry=0x158e350, handler_id=handler_id@entry=264) at /build/glib2.0-oVi7VK/glib2.0-2.45.3/./gobject/gsignal.c:2595
        handler = 0x1720120
        __FUNCTION__ = "g_signal_handler_disconnect"
#2  0x000000000040a5da in gs_lock_plug_run (plug=plug@entry=0x158e350 [GSLockPlug]) at gs-lock-plug.c:525
        ri = {plug = 0x0, response_id = -2, loop = 0x0, destroyed = 0}
        was_modal = 0
        response_handler = 265
        unmap_handler = 266
        destroy_handler = 268
        delete_handler = 267
        keymap_handler = 264
        keymap = <optimised out>
        __FUNCTION__ = "gs_lock_plug_run"
#3  0x00000000004070d1 in request_response (plug=plug@entry=0x158e350 [GSLockPlug], prompt=0x40d429 "Password:", visible=visible@entry=0) at gnome-screensaver-dialog.c:155
        response = <optimised out>
        text = 0x7f8078004d80 " "
        __FUNCTION__ = "request_response"
#4  0x00000000004072ff in auth_message_handler (style=GS_AUTH_MESSAGE_PROMPT_ECHO_OFF, msg=0x7f806c001d40 "Password: ", response=0x7f806c001cc0, data=<optimised out>) at gnome-screensaver-dialog.c:249
        resp = <optimised out>
        ret = 1
        plug = 0x158e350 [GSLockPlug]
        __FUNCTION__ = "auth_message_handler"
#5  0x000000000040ba7d in gs_auth_queued_message_handler (data=0x7f807680b840) at gs-auth-pam.c:196
        res = <optimised out>
#6  0x00007f8091bf2c0d in g_main_context_dispatch (context=0x141d5b0) at /build/glib2.0-oVi7VK/glib2.0-2.45.3/./glib/gmain.c:3122
        dispatch = 0x7f8091bef6d0 <g_idle_dispatch>
        prev_source = 0x1700e90
        was_in_call = 0
        user_data = 0x7f807680b840
        callback = 0x40ba40 <gs_auth_queued_message_handler>
        cb_funcs = <optimised out>
        cb_data = 0x7f806c001d60
        need_destroy = <optimised out>
        source = 0x7f806c001c50
        current = 0x1457320
        i = 0
#7  0x00007f8091bf2c0d in g_main_context_dispatch (context=context@entry=0x141d5b0) at /build/glib2.0-oVi7VK/glib2.0-2.45.3/./glib/gmain.c:3737
#8  0x00007f8091bf2fe0 in g_main_context_iterate (context=0x141d5b0, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimised out>) at /build/glib2.0-oVi7VK/glib2.0-2.45.3/./glib/gmain.c:3808
        max_priority = 2147483647
        timeout = 16036
        some_ready = 1
        nfds = <optimised out>
        allocated_nfds = 6
        fds = 0x16fcbc0
#9  0x00007f8091bf3302 in g_main_loop_run (loop=0x1709740) at /build/glib2.0-oVi7VK/glib2.0-2.45.3/./glib/gmain.c:4002
        __FUNCTION__ = "g_main_loop_run"
#10 0x00007f80930b0e25 in gtk_main () at /usr/lib/x86_64-linux-gnu/libgtk-3.so.0
#11 0x000000000040c5b2 in gs_auth_verify_user (handle=<optimised out>, status=<optimised out>) at gs-auth-pam.c:643
        auth_thread = 0x15cce80
        channel = 0x170c5d0
        auth_operation_fds = {13, 15}
        thread_done = 0
        watch_id = 28
        status = 7
        conv = {conv = 0x40be90 <pam_conversation>, appdata_ptr = 0x7ffd61d889f0}
        c = {username = 0x148bbc0 "luke", cb_func = 0x407140 <auth_message_handler>, cb_data = 0x158e350, signal_fd = -509676800, result = -407509485}
        pwent = 0x1728180
#12 0x000000000040c5b2 in gs_auth_verify_user (username=0x170c5d0 "\002", display=0x15cce80 "", func=0x407140 <auth_message_handler>, data=0x7, error=0x7ffd61d88a60) at gs-auth-pam.c:711
        status = 7
        conv = {conv = 0x40be90 <pam_conversation>, appdata_ptr = 0x7ffd61d889f0}
        c = {username = 0x148bbc0 "luke", cb_func = 0x407140 <auth_message_handler>, cb_data = 0x158e350, signal_fd = -509676800, result = -407509485}
        pwent = 0x1728180
#13 0x0000000000407706 in auth_check_idle (plug=0x158e350 [GSLockPlug]) at gnome-screensaver-dialog.c:301
        error = 0x0
        res = <optimised out>
        res = 24281472
        again = 1
        loop_counter = 0
#14 0x0000000000407706 in auth_check_idle (plug=0x158e350 [GSLockPlug]) at gnome-screensaver-dialog.c:356
        res = 24281472
        again = 1
        loop_counter = 0
#15 0x00007f8091bf2c0d in g_main_context_dispatch (context=0x141d5b0) at /build/glib2.0-oVi7VK/glib2.0-2.45.3/./glib/gmain.c:3122
        dispatch = 0x7f8091bef6d0 <g_idle_dispatch>
        prev_source = 0x0
        was_in_call = 0
        user_data = 0x158e350
        callback = 0x4076b0 <auth_check_idle>
        cb_funcs = <optimised out>
        cb_data = 0x1703480
        need_destroy = <optimised out>
        source = 0x1700e90
        current = 0x1457320
        i = 1
#16 0x00007f8091bf2c0d in g_main_context_dispatch (context=context@entry=0x141d5b0) at /build/glib2.0-oVi7VK/glib2.0-2.45.3/./glib/gmain.c:3737
#17 0x00007f8091bf2fe0 in g_main_context_iterate (context=0x141d5b0, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimised out>) at /build/glib2.0-oVi7VK/glib2.0-2.45.3/./glib/gmain.c:3808
        max_priority = 200
        timeout = 0
        some_ready = 1
        nfds = <optimised out>
        allocated_nfds = 5
        fds = 0x13f6f60
#18 0x00007f8091bf3302 in g_main_loop_run (loop=0x13f4860) at /build/glib2.0-oVi7VK/glib2.0-2.45.3/./glib/gmain.c:4002
        __FUNCTION__ = "g_main_loop_run"
#19 0x00007f80930b0e25 in gtk_main () at /usr/lib/x86_64-linux-gnu/libgtk-3.so.0
#20 0x0000000000406d3d in main (argc=1, argv=0x7ffd61d88cf8) at gnome-screensaver-dialog.c:603
        error = 0x0
        nolock_reason = 0x0
