HI ,   I am running DBUS on ARM 9 . The DBUS successfully creates the system bus socket and I have the messagebus.pid     system_bus_socket created in the /var/run/dbus folder.   However when I run bluetooth hcid or any  test application to use DBUS , it disconnects soon after connecting.   Attached is the verbose enabled logs. Any help in debugging is appreciated.   Thanks Ajay   ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ cd /opt/bluez/sbin/-/bin/sh-2.05b#                    -/bin/sh-2.05b# ./hcid -n -d 1 hcid[785]: Bluetooth HCI daemon hcid[785]: Enabling debug information hcid[785]: Parsing /opt/bluez/etc/bluetooth/main.conf failed: No such file or di rectory 785: Filling in system bus address... 785:   used default system bus "unix:path=/opt/bluez/var/run/dbus/system_bus_soc ket" 785: Filling in session bus address... 785:   "unix:abstract=/tmp/dbus-RBN05TvXCo,guid=66aa1a8946a63ced7da9e60000001399 " 785: Filling in activation bus address... 785:   "none set" 785: opening shared connection to: unix:path=/opt/bluez/var/run/dbus/system_bus_ socket 785: checking for existing connection 785: creating shared_connections hash table 785:   successfully created shared_connections 785: connecting to unix socket /opt/bluez/var/run/dbus/system_bus_socket abstrac t=0 785: Successfully connected to unix socket /opt/bluez/var/run/dbus/system_bus_so cket 785: client: going from state NeedSendAuth to state WaitingForData 785: Initialized transport on address unix:path=/opt/bluez/var/run/dbus/system_b us_socket 785:   LOCK: _dbus_connection_new_for_transport 785:   UNLOCK: protected_change_watch 785:   LOCK: protected_change_watch 785:   UNLOCK: protected_change_watch 785:   LOCK: protected_change_watch 785: check_read_watch: fd = 6 785:   setting read watch enabled = 0 785:   UNLOCK: protected_change_watch 785:   LOCK: protected_change_watch 785: check_write_watch(): needed = 1 on connection 0x5d2d0 watch 0x5cf98 fd = 6 outgoing messages exist 0 785:   UNLOCK: protected_change_watch 785:   LOCK: protected_change_watch 785:   UNLOCK: _dbus_connection_new_for_transport 785:   LOCK: _dbus_connection_open_internal 785:   UNLOCK: _dbus_connection_open_internal 785:   LOCK: dbus_connection_set_exit_on_disconnect 785:   UNLOCK: dbus_connection_set_exit_on_disconnect 785: Allocated slot 0 on allocator 0x4010ccb0 total 1 slots allocated 1 used 785:   LOCK: dbus_connection_get_data 785:   UNLOCK: dbus_connection_get_data 785:   LOCK: dbus_connection_set_data 785:   UNLOCK: dbus_connection_set_data 785:   LOCK: dbus_connection_send_with_reply 785: Allocated slot 0 on allocator 0x4010ccfc total 1 slots allocated 1 used 785:   UNLOCK: protected_change_timeout 785:   LOCK: protected_change_timeout 785: Message 0x5d500 (1 /org/freedesktop/DBus org.freedesktop.DBus Hello '') for org.freedesktop.DBus added to outgoing queue 0x5d2d0, 1 pending to send 785: Message 0x5d500 serial is 1 785: _dbus_connection_do_iteration_unlocked start 785:   UNLOCK: _dbus_connection_acquire_io_path 785: _dbus_connection_acquire_io_path locking io_path_mutex 785: _dbus_connection_acquire_io_path start connection->io_path_acquired = 0 tim eout = 0 785: _dbus_connection_acquire_io_path end connection->io_path_acquired = 1 we_ac quired = 1 785: _dbus_connection_acquire_io_path unlocking io_path_mutex 785:   LOCK: _dbus_connection_acquire_io_path 785: Transport iteration flags 0x1 timeout -1 connected = 1 785:  iteration flags = write timeout = -1 read_watch = 0x5cfc0 write_watch = 0x 5cf98 fd = 6 785: in iteration, need_read=0 need_write=1 785: exchange_credentials: do_reading = 0, do_writing = 1 785: wrote credentials byte 785:  client auth state: bytes to send 785: client: Sent 18 bytes of: AUTH EXTERNAL 30 785: exchange_credentials: do_reading = 0, do_writing = 1 785:  client auth state: waiting for input 785: check_read_watch: fd = 6 785:   setting read watch enabled = 1 785:   UNLOCK: protected_change_watch 785:   LOCK: protected_change_watch 785: check_write_watch(): needed = 0 on connection 0x5d2d0 watch 0x5cf98 fd = 6 outgoing messages exist 1 785:   UNLOCK: protected_change_watch 785:   LOCK: protected_change_watch 785: Not authenticated, not writing anything 785: check_write_watch(): needed = 0 on connection 0x5d2d0 watch 0x5cf98 fd = 6 outgoing messages exist 1 785:   UNLOCK: protected_change_watch 785:   LOCK: protected_change_watch 785:  ... leaving do_iteration() 785: _dbus_transport_do_iteration end 785: _dbus_connection_release_io_path locking io_path_mutex 785: _dbus_connection_release_io_path start connection->io_path_acquired = 1 785: _dbus_connection_release_io_path unlocking io_path_mutex 785: _dbus_connection_do_iteration_unlocked end 785: dispatch status = complete is_connected = 1 785:   UNLOCK: _dbus_connection_update_dispatch_status_and_unlock 785:   LOCK: dbus_connection_unref 785:   UNLOCK: dbus_connection_unref 785:   LOCK: _dbus_connection_lock 785:   UNLOCK: _dbus_connection_unlock 785:   LOCK: _dbus_connection_lock 785:   UNLOCK: _dbus_connection_unlock 785:   LOCK: _dbus_connection_lock 785: doing iteration in _dbus_connection_flush_unlocked 785: _dbus_connection_do_iteration_unlocked start 785:   UNLOCK: _dbus_connection_acquire_io_path 785: _dbus_connection_acquire_io_path locking io_path_mutex 785: _dbus_connection_acquire_io_path start connection->io_path_acquired = 0 tim eout = -1 785: _dbus_connection_acquire_io_path end connection->io_path_acquired = 1 we_ac quired = 1 785: _dbus_connection_acquire_io_path unlocking io_path_mutex 785:   LOCK: _dbus_connection_acquire_io_path 785: Transport iteration flags 0x7 timeout -1 connected = 1 785:  iteration flags = readwrite timeout = -1 read_watch = 0x5cfc0 write_watch = 0x5cf98 fd = 6 785: unlock socket_do_iteration pre poll 785:   UNLOCK: _dbus_connection_unlock 785: lock socket_do_iteration post poll 785:   LOCK: _dbus_connection_lock 785: in iteration, need_read=1 need_write=0 785: exchange_credentials: do_reading = 1, do_writing = 0 785:  client auth state: waiting for input 785:  read 37 bytes in auth phase 785: client: got command "OK 4eeff5879c2ddf01ff99b00000002254" 785: Got GUID '4eeff5879c2ddf01ff99b00000002254' from the server 785: client: going from state WaitingForData to state Authenticated 785: exchange_credentials: do_reading = 1, do_writing = 0 785:  client auth state: bytes to send 785: check_read_watch: fd = 6 785:   setting read watch enabled = 0 785:   UNLOCK: protected_change_watch 785:   LOCK: protected_change_watch 785: check_write_watch(): needed = 1 on connection 0x5d2d0 watch 0x5cf98 fd = 6 outgoing messages exist 1 785:   UNLOCK: protected_change_watch 785:   LOCK: protected_change_watch 785: do_reading: fd = 6 785: check_write_watch(): needed = 1 on connection 0x5d2d0 watch 0x5cf98 fd = 6 outgoing messages exist 1 785:   UNLOCK: protected_change_watch 785:   LOCK: protected_change_watch 785:  ... leaving do_iteration() 785: _dbus_transport_do_iteration end 785: _dbus_connection_release_io_path locking io_path_mutex 785: _dbus_connection_release_io_path start connection->io_path_acquired = 1 785: _dbus_connection_release_io_path unlocking io_path_mutex 785: _dbus_connection_do_iteration_unlocked end 785: doing iteration in _dbus_connection_flush_unlocked 785: _dbus_connection_do_iteration_unlocked start 785:   UNLOCK: _dbus_connection_acquire_io_path 785: _dbus_connection_acquire_io_path locking io_path_mutex 785: _dbus_connection_acquire_io_path start connection->io_path_acquired = 0 tim eout = -1 785: _dbus_connection_acquire_io_path end connection->io_path_acquired = 1 we_ac quired = 1 785: _dbus_connection_acquire_io_path unlocking io_path_mutex 785:   LOCK: _dbus_connection_acquire_io_path 785: Transport iteration flags 0x7 timeout -1 connected = 1 785:  iteration flags = readwrite timeout = -1 read_watch = 0x5cfc0 write_watch = 0x5cf98 fd = 6 785: unlock socket_do_iteration pre poll 785:   UNLOCK: _dbus_connection_unlock 785: lock socket_do_iteration post poll 785:   LOCK: _dbus_connection_lock 785: in iteration, need_read=0 need_write=1 785: exchange_credentials: do_reading = 0, do_writing = 1 785:  client auth state: bytes to send 785: client: Sent 7 bytes of: BEGIN 785: check_read_watch: fd = 6 785:   setting read watch enabled = 1 785:   UNLOCK: protected_change_watch 785:   LOCK: protected_change_watch 785: check_write_watch(): needed = 1 on connection 0x5d2d0 watch 0x5cf98 fd = 6 outgoing messages exist 1 785:   UNLOCK: protected_change_watch 785:   LOCK: protected_change_watch 785: check_write_watch(): needed = 1 on connection 0x5d2d0 watch 0x5cf98 fd = 6 outgoing messages exist 1 785:   UNLOCK: protected_change_watch 785:   LOCK: protected_change_watch 785:  ... leaving do_iteration() 785: _dbus_transport_do_iteration end 785: _dbus_connection_release_io_path locking io_path_mutex 785: _dbus_connection_release_io_path start connection->io_path_acquired = 1 785: _dbus_connection_release_io_path unlocking io_path_mutex 785: _dbus_connection_do_iteration_unlocked end 785: doing iteration in _dbus_connection_flush_unlocked 785: _dbus_connection_do_iteration_unlocked start 785:   UNLOCK: _dbus_connection_acquire_io_path 785: _dbus_connection_acquire_io_path locking io_path_mutex 785: _dbus_connection_acquire_io_path start connection->io_path_acquired = 0 tim eout = -1 785: _dbus_connection_acquire_io_path end connection->io_path_acquired = 1 we_ac quired = 1 785: _dbus_connection_acquire_io_path unlocking io_path_mutex 785:   LOCK: _dbus_connection_acquire_io_path 785: Transport iteration flags 0x7 timeout -1 connected = 1 785:  iteration flags = readwrite timeout = -1 read_watch = 0x5cfc0 write_watch = 0x5cf98 fd = 6 785: unlock socket_do_iteration pre poll 785:   UNLOCK: _dbus_connection_unlock 785: lock socket_do_iteration post poll 785:   LOCK: _dbus_connection_lock 785: in iteration, need_read=0 need_write=1 785: do_writing(), have_messages = 1, fd = 6 785:  wrote 128 bytes of 128 785: Message 0x5d500 (1 /org/freedesktop/DBus org.freedesktop.DBus Hello '') rem oved from outgoing queue 0x5d2d0, 0 left to send 785: check_write_watch(): needed = 0 on connection 0x5d2d0 watch 0x5cf98 fd = 6 outgoing messages exist 0 785:   UNLOCK: protected_change_watch 785:   LOCK: protected_change_watch 785:  ... leaving do_iteration() 785: _dbus_transport_do_iteration end 785: _dbus_connection_release_io_path locking io_path_mutex 785: _dbus_connection_release_io_path start connection->io_path_acquired = 1 785: _dbus_connection_release_io_path unlocking io_path_mutex 785: _dbus_connection_do_iteration_unlocked end 785: _dbus_connection_flush_unlocked middle 785:  0 unused bytes sent to message loader 785: dispatch status = complete is_connected = 1 785: dbus_connection_send_with_reply_and_block(): will block 25000 milliseconds for reply serial 1 from 8866 sec 446068 usec to 8891 sec 446068 usec 785: _dbus_connection_do_iteration_unlocked start 785:   UNLOCK: _dbus_connection_acquire_io_path 785: _dbus_connection_acquire_io_path locking io_path_mutex 785: _dbus_connection_acquire_io_path start connection->io_path_acquired = 0 tim eout = 25000 785: _dbus_connection_acquire_io_path end connection->io_path_acquired = 1 we_ac quired = 1 785: _dbus_connection_acquire_io_path unlocking io_path_mutex 785:   LOCK: _dbus_connection_acquire_io_path 785: Transport iteration flags 0x6 timeout 25000 connected = 1 785:  iteration flags = read timeout = 25000 read_watch = 0x5cfc0 write_watch = 0x5cf98 fd = 6 785: unlock socket_do_iteration pre poll 785:   UNLOCK: _dbus_connection_unlock 785: lock socket_do_iteration post poll 785:   LOCK: _dbus_connection_lock 785: in iteration, need_read=1 need_write=0 785: do_reading: fd = 6 785: check_read_watch: fd = 6 785:   setting read watch enabled = 1 785:   UNLOCK: protected_change_watch 785:   LOCK: protected_change_watch 785: Disconnected from remote app 785: _dbus_transport_disconnect start 785: socket_disconnect 785: free_watches start 785:   UNLOCK: protected_change_watch 785:   LOCK: protected_change_watch 785: Setting watch fd -1 data to data = (nil) function = (nil) from data = (nil) function = (nil) 785:   UNLOCK: protected_change_watch 785:   LOCK: protected_change_watch 785: Setting watch fd -1 data to data = (nil) function = (nil) from data = (nil) function = (nil) 785: free_watches end 785: _dbus_transport_disconnect end 785:  ... leaving do_iteration() 785: _dbus_transport_do_iteration end 785: _dbus_connection_release_io_path locking io_path_mutex 785: _dbus_connection_release_io_path start connection->io_path_acquired = 1 785: _dbus_connection_release_io_path unlocking io_path_mutex 785: _dbus_connection_do_iteration_unlocked end 785: _dbus_connection_block_pending_call top of recheck 785: dispatch status = complete is_connected = 0 785: Sending disconnect message from notify_disconnected_and_dispatch_complete_u nlocked 785: Synthesized message 0x5d660 added to incoming queue 0x5d2d0, 1 incoming 785:   UNLOCK: protected_change_timeout 785:   LOCK: protected_change_timeout 785:   UNLOCK: _dbus_connection_unlock 785:   LOCK: free_pending_call_on_hash_removal 785:   UNLOCK: _dbus_connection_unlock 785:   LOCK: connection_timeout_and_complete_all_pending_calls_unlocked 785: Synthesized message 0x5d358 added to incoming queue 0x5d2d0, 2 incoming 785: check_for_reply_and_update_dispatch_unlocked checked for reply 785: dbus_connection_send_with_reply_and_block(): got reply 785:   handing message 0x5d660 (error) to pending call serial 1 785:   UNLOCK: _dbus_connection_unlock 785:   LOCK: _dbus_connection_lock 785:   UNLOCK: _dbus_connection_unlock 785:   LOCK: check_for_reply_and_update_dispatch_unlocked 785:   UNLOCK: _dbus_connection_update_dispatch_status_and_unlock 785:   LOCK: dbus_connection_unref 785:   UNLOCK: dbus_connection_unref 785:   LOCK: _dbus_connection_lock 785:   UNLOCK: _dbus_connection_unlock 785:   LOCK: _dbus_connection_lock 785:   UNLOCK: _dbus_connection_unlock 785:   LOCK: _dbus_connection_lock 785:   UNLOCK: _dbus_connection_unlock 785: Freeing slot 0 on allocator 0x4010ccfc total 1 allocated 1 used 785:   LOCK: dbus_connection_unref 785:   UNLOCK: dbus_connection_unref 785:   LOCK: _dbus_connection_close_possibly_shared 785: Disconnecting 0x5d2d0 785: _dbus_transport_disconnect start 785:   UNLOCK: _dbus_connection_update_dispatch_status_and_unlock 785:   LOCK: dbus_connection_unref 785:   UNLOCK: dbus_connection_unref 785:   LOCK: dbus_connection_unref 785:   UNLOCK: dbus_connection_unref 785:   LOCK: dbus_connection_unref 785:   UNLOCK: dbus_connection_unref 785: opening shared connection to: unix:path=/opt/bluez/var/run/dbus/system_bus_ socket 785: checking for existing connection 785: connecting to unix socket /opt/bluez/var/run/dbus/system_bus_socket abstrac t=0 hcid[785]: Unable to get on D-Bus   --------------------------------------------------------------------------------------------------------------------- ______________________________________________________________________