Re: [Xen-users] X fails starting with Xen kernel 2.6.22-14-xen on Ubuntu 7.10

[jim burns <jim_burn@xxxxxxxxxxxxx>]

On Tuesday 29 January 2008 05:59:59 am Emanuele Nespolo wrote:
> When I boot this kernel something concerning X/gdm goes wrong and it
> doesn't start at all giving errors while attempting to log in (see
> attachments). I can just log in in a console.
> I tried to restart gdm with no kind of success.
> Booting kernel 2.6.22-14-generic let me work perfectly with no troubles at
> all.

Well, you have several problems of unknown severity that might cause gdm/X to 
fail. The '(WW) I810(0): Bad V_BIOS checksum' errors concern me, as does not 
being able to open /dev/wacom, but after seeing:

> (process:5411): Gtk-WARNING **: This process is currently running setuid or 
setgid.
> This is not a supported use of GTK+. You must create a helper
> program instead. For further details, see:

>     http://www.gtk.org/setuid.html

> Refusing to initialize GTK+.
> /etc/gdm/Xsession: Beginning session setup...
> SESSION_MANAGER=local/emanuele-desktop:/tmp/.ICE-unix/5404
> dbus-daemon exited unexpectedly

> ** ERROR **: file gsm-dbus.c: line 118 (gsm_dbus_daemon_start): assertion > 
failed: (dbus_daemon_pid != 0)
> aborting...

it made me look back at your dmesg/syslog problem:

> Jan 29 10:13:04 emanuele-desktop kernel: [    1.869538] Failure registering 
capabilities with primary security module.
[...]
> Jan 29 10:13:16 emanuele-desktop kernel: [   46.962700] Failure registering 
capabilities with primary security module.
> Jan 29 10:13:16 emanuele-desktop avahi-daemon[5273]: Found user 'avahi' (UID 
104) and group 'avahi' (GID 108).
> Jan 29 10:13:16 emanuele-desktop avahi-daemon[5273]: Successfully dropped 
root privileges.
> Jan 29 10:13:16 emanuele-desktop avahi-daemon[5273]: avahi-daemon 0.6.20 
starting up.
> Jan 29 10:13:16 emanuele-desktop avahi-daemon[5273]: dbus_bus_get_private(): 
> Failed to connect to socket /var/run/dbus/system_bus_socket: No such file 
or directory
> Jan 29 10:13:16 emanuele-desktop avahi-daemon[5273]: WARNING: Failed to 
contact D-Bus daemon.
> Jan 29 10:13:17 emanuele-desktop dhcdbd: dbus_svc_init failed:  
org.freedesktop.DBus.Error.FileNotFound Failed to connect to
> socket /var/run/dbus/system_bus_socket: No such file or directory  
> Jan 29 10:13:17 emanuele-desktop dhcdbd: Failed to initialise D-Bus service. 

If the kernel module 'capability' doesn't load, it will mess up all kinds of 
dbus requiring programs. This didn't stop me from loading X on fedora, but 
your GTK+ warnings tells me Ubuntu is less happy about it. If indeed 'lsmod|
grep capa' doesn't show the capability module loaded, I would find out why, 
correct the problem, and reboot. Good luck!

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