<HTML > <HEAD> <META http-equiv="Content-Type" content="text/html; charset=us-ascii"> <meta name=Generator content="Microsoft Word 11 (filtered medium)"> <style>  </style>  </HEAD> <BODY lang=EN-US link=blue vlink=purple> <DIV> <div class=Section1> I’m working on porting DBus 1.2.4 and the associated daemon to QNX Neutrino on an SH4. I managed to get the library and daemon built but when I launch the daemon I get the following error:<o:p></o:p> <o:p> </o:p> 520233: Allocated slot 0 on allocator 811cffc total 1 slots allocated 1 used<o:p></o:p> 520233: Falling back to pseudorandom for 12 bytes<o:p></o:p> 520233: file fd 3 opened<o:p></o:p> 520233: listening on unix socket /var/run/dbus/system_bus_socket abstract=0<o:p></o:p> 520233: socket fd 3 opened<o:p></o:p> 520233: LOCAL_CREDS enabled for further messages on fd 3<o:p></o:p> 520233: Falling back to pseudorandom for 12 bytes<o:p></o:p> 520233: Initialized server on address unix:path=/var/run/dbus/system_bus_socket,guid=efba7f2d0badd285044ff9d10000045a<o:p></o:p> 520233: Adding a read watch on fd 3 using newly-set add watch function<o:p></o:p> 520233: Failed to open directory /root/dbus-dev/install/nto-sh-le/QNX_6.3.2_sh_GCC_3.3.5/share/dbus-1/system-services: Failed to read directory "/root/dbus-dev/install/nto-sh-le/QNX_6.3.2_sh_GCC_3.3.5/share/dbus-1/system-services": No such file or directory<o:p></o:p> unix:path=/var/run/dbus/system_bus_socket,guid=efba7f2d0badd285044ff9d10000045a<o:p></o:p> 520233: Allocated slot 0 on allocator 811cfb0 total 1 slots allocated 1 used<o:p></o:p> 520233: No cache for UID 0<o:p></o:p> 520233: Finalizing bus context 81210a0<o:p></o:p> 520233: Removing all pre-existing watches<o:p></o:p> 520233: Setting watch fd 3 data to data = 0 function = 0 from data = 0 function = 0<o:p></o:p> 520233: Freeing slot 0 on allocator 811cfb0 total 1 allocated 1 used<o:p></o:p> 520233: Freeing slot 0 on allocator 811cffc total 1 allocated 1 used<o:p></o:p> Failed to start message bus: Could not get UID and GID for username "root"<o:p></o:p> <o:p> </o:p> Obviously it *appears* to fail getting the UID and GID for “root”. The daemon is launched as “root” and I traced through the code. Here’s the call stack<o:p></o:p> <o:p> </o:p> 8 _dbus_user_database_lookup() ..\..\dbus\dbus-userdb.c:147 0x080dbeb8            <o:p></o:p> 7 _dbus_user_database_get_uid() ..\..\dbus\dbus-userdb.c:640 0x080dcbca           <o:p></o:p> 6 init_system_db() ..\..\dbus\dbus-userdb.c:249 0x080dc2b8         <o:p></o:p> 5 _dbus_user_database_get_system() ..\..\dbus\dbus-userdb.c:335 0x080dc55e     <o:p></o:p> 4 _dbus_get_user_id_and_primary_group() ..\..\dbus\dbus-userdb-util.c:172 0x080e781a     <o:p></o:p> 3 _dbus_verify_daemon_user() ..\..\dbus\dbus-sysdeps-util-unix.c:302 0x080e636c <o:p></o:p> 2 bus_context_new() ..\..\bus\bus.c:691 0x08055d92        <o:p></o:p> 1 main() ..\..\bus\main.c:443 0x0807a888 <o:p></o:p> <o:p> </o:p> The UID for root is of course zero (0) and in _dbus_user_database_lookup() it tries to look up the cached value for this user. Since the user cache has just been created and initialized, the database is empty and the lookup fails. This susequently cascades out as an error and startup fails. Maybe I’m missing something here, but how is the user cache supposed to be filled initially when the daemon starts up? It almost seems like my startup will fail no matter who starts the daemon (root or someone else).  Perhaps the cache behavior is somehow different on Linux but I need to understand how the user cache is expected to work on startup. Can anyone help me out and offer some suggestions how I might get past this startup issue?<o:p></o:p> </div> </DIV> <DIV> </DIV> <DIV>******************************************* Diese E-Mail enthaelt vertrauliche und/oder rechtlich geschuetzte Informationen. Wenn Sie nicht der richtige Adressat sind oder diese E-Mail irrtuemlich erhalten haben, informieren Sie bitte sofort den Absender und loeschen Sie diese Mail. Das unerlaubte Kopieren sowie die unbefugte Weitergabe dieser Mail ist nicht gestattet.   This e-mail may contain confidential and/or privileged information. If you are not the intended recipient (or have received this e-mail in error) please notify the sender immediately and delete this e-mail. Any unauthorized copying, disclosure or distribution of the contents in this e-mail is strictly forbidden. ******************************************* </DIV></BODY></HTML>