Backtrace from polkitd - before timeout #0 0x00007ffff71b6f08 in poll () from /lib/libc.so.6 #1 0x00007ffff5b1df40 in _dbus_poll (fds=0x7fffffffe0d0, n_fds=1, timeout_milliseconds=13027) at dbus-sysdeps-unix.c:1970 #2 0x00007ffff5b12da2 in socket_do_iteration (transport=0x60d170, flags=6, timeout_milliseconds=13027) at dbus-transport-socket.c:1066 #3 0x00007ffff5b113cb in _dbus_transport_do_iteration (transport=0x60d170, flags=6, timeout_milliseconds=13027) at dbus-transport.c:956 #4 0x00007ffff5af350b in _dbus_connection_do_iteration_unlocked (connection=0x60d770, flags=6, timeout_milliseconds=13027) at dbus-connection.c:1163 #5 0x00007ffff5af4e23 in _dbus_connection_block_pending_call (pending=0x2786f270) at dbus-connection.c:2428 #6 0x00007ffff5b0a8b5 in dbus_pending_call_block (pending=0x2786f270) at dbus-pending-call.c:705 #7 0x00007ffff6c9c766 in egg_dbus_connection_pending_call_block (connection=0x619190, pending_call_id=200807) at eggdbusconnection.c:2521 #8 0x00007ffff6c9bf6c in egg_dbus_connection_send_message_with_reply_sync (connection=0x619190, call_flags=EGG_DBUS_CALL_FLAGS_NONE, message=0x2786b5b0, error_types=0x0, cancellable=0x0, error=0x7fffffffe4d0) at eggdbusconnection.c:2302 #9 0x00007ffff6c937af in egg_dbus_bus_get_connection_unix_user_sync (instance=0x622050, call_flags=EGG_DBUS_CALL_FLAGS_NONE, _name=0x60f4f0 ":1.30", _out_uid=0x7fffffffe3ec, cancellable=0x0, error=0x7fffffffe4d0) at eggdbusbus.c:3139 #10 0x00007ffff7bbc509 in polkit_backend_session_monitor_get_user_for_subject (monitor=0x618480, subject=0x278536c0, error=0x7fffffffe4d0) at polkitbackendsessionmonitor.c:462 #11 0x00007ffff7bb3edf in polkit_backend_interactive_authority_check_authorization (authority=0x614760, caller=0x278536c0, subject=0x27865cf0, action_id=0x60ced0 "i.like.icecream", details=0x278692a0, flags=POLKIT_CHECK_AUTHORIZATION_FLAGS_ALLOW_USER_INTERACTION, cancellable=0x0, callback=0x7ffff7bb1a56 , user_data=0x2786dcc0) at polkitbackendinteractiveauthority.c:721 #12 0x00007ffff7bb0e0f in polkit_backend_authority_check_authorization (authority=0x614760, caller=0x278536c0, subject=0x27865cf0, action_id=0x60ced0 "i.like.icecream", details=0x278692a0, flags=POLKIT_CHECK_AUTHORIZATION_FLAGS_ALLOW_USER_INTERACTION, cancellable=0x0, callback=0x7ffff7bb1a56 , user_data=0x2786dcc0) at polkitbackendauthority.c:242 #13 0x00007ffff7bb1dfb in authority_handle_check_authorization (instance=0x6246a0, real_subject=0x2786dc80, action_id=0x60ced0 "i.like.icecream", real_details=0x2786c1e0, flags=_POLKIT_CHECK_AUTHORIZATION_FLAGS_ALLOW_USER_INTERACTION, cancellation_id=0x2786f3d0 "", method_invocation=0x2786dcc0) at polkitbackendauthority.c:953 #14 0x00007ffff7bc7618 in handle_method_call (interface=0x6246a0, message=0x2786b4a0) at _polkitauthority.c:2883 #15 0x00007ffff7bc898b in handle_message (interface=0x6246a0, message=0x2786b4a0) at _polkitauthority.c:3545 #16 0x00007ffff6c9bd0c in filter_function_handle_method_call (dconnection=0x60d770, dmessage=0x2786d940, user_data=0x619190) at eggdbusconnection.c:2213 #17 0x00007ffff6c98a2a in filter_function (dconnection=0x60d770, message=0x2786d940, user_data=0x619190) at eggdbusconnection.c:294 #18 0x00007ffff5af7800 in dbus_connection_dispatch (connection=0x60d770) at dbus-connection.c:4451 #19 0x00007ffff5d3d975 in message_queue_dispatch () from /usr/lib/libdbus-glib-1.so.2 #20 0x00007ffff76a7b33 in g_main_context_dispatch () from /usr/lib/libglib-2.0.so.0 #21 0x00007ffff76a8310 in g_main_context_iterate () from /usr/lib/libglib-2.0.so.0 #22 0x00007ffff76a8982 in g_main_loop_run () from /usr/lib/libglib-2.0.so.0 #23 0x0000000000400a24 in main (argc=1, argv=0x7fffffffebd8) at main.c:59 Backtrace from polkitd - after timeout (polkitd stops responding to queries here) #0 0x00007ffff71b6f08 in poll () from /lib/libc.so.6 #1 0x00007ffff76a8074 in g_main_context_iterate () from /usr/lib/libglib-2.0.so.0 #2 0x00007ffff76a8982 in g_main_loop_run () from /usr/lib/libglib-2.0.so.0 #3 0x0000000000400a24 in main (argc=1, argv=0x7fffffffebd8) at main.c:59 Backtrace from a pkdos instance #0 0x00007ffff71dbf08 in poll () from /lib/libc.so.6 #1 0x00007ffff5f91f40 in _dbus_poll (fds=0x7fffffffe0d0, n_fds=1, timeout_milliseconds=-1) at dbus-sysdeps-unix.c:1970 #2 0x00007ffff5f86da2 in socket_do_iteration (transport=0x634c40, flags=6, timeout_milliseconds=-1) at dbus-transport-socket.c:1066 #3 0x00007ffff5f853cb in _dbus_transport_do_iteration (transport=0x634c40, flags=6, timeout_milliseconds=-1) at dbus-transport.c:956 #4 0x00007ffff5f6750b in _dbus_connection_do_iteration_unlocked (connection=0x635300, flags=6, timeout_milliseconds=-1) at dbus-connection.c:1163 #5 0x00007ffff5f68c68 in _dbus_connection_block_pending_call (pending=0x2de17b0) at dbus-connection.c:2335 #6 0x00007ffff5f7e8b5 in dbus_pending_call_block (pending=0x2de17b0) at dbus-pending-call.c:705 #7 0x00007ffff6ee8766 in egg_dbus_connection_pending_call_block (connection=0x633170, pending_call_id=61317) at eggdbusconnection.c:2521 #8 0x00007ffff7bc1359 in polkit_authority_check_authorization_sync (authority=0x6041e0, subject=0x60c030, action_id=0x400d18 "i.like.icecream", details=0x0, flags=POLKIT_CHECK_AUTHORIZATION_FLAGS_ALLOW_USER_INTERACTION, cancellable=0x0, error=0x7fffffffe328) at polkitauthority.c:667 #9 0x0000000000400b25 in main (argc=1, argv=0x7fffffffe468) at pkdos.c:142