This bug is not fixed in lucid, even with the latest gdm (2.30.2.is.2.30.0-0ubuntu5.2). Gdm still touches all user directories, which means they all get mounted when /home is managed by automount. This is very annoying because as soon as one home directory is not available (because the NFS server is down, etc.), this bug makes it impossible for anyone to login across the whole set of computers.
The (remaining) cause of the problem is the update_icon_monitor() function in daemon/gdm-user.c. I disabled said function with the attached patch, and now gdm does not cause all home directories to become automounted, and people can still login even if someone else's home directory is not available. The patch may not do the right thing for users who care about the face browser, but it finally makes Lucid's gdm usable in deployments with NFS and/or automounted home directories, etc. Please consider fixing this bug. ** Patch added: "Patch to disable update_icon_monitor() function in daemon/gdm-user.c" https://bugs.launchpad.net/ubuntu/lucid/+source/gdm/+bug/562509/+attachment/3176480/+files/gdm.patch -- You received this bug notification because you are a member of Desktop Packages, which is subscribed to gdm in Ubuntu. https://bugs.launchpad.net/bugs/562509 Title: Automounts users autofs home directories by default (face browser disabled) Status in GDM: The Gnome Display Manager: Fix Released Status in “gdm” package in Ubuntu: Fix Released Status in “gdm” source package in Lucid: Fix Committed Bug description: Binary package hint: gdm Even with the face browser disabled when GDM starts it mounts up to 100 users autofs home dirs. This is an issue since having hundreds of desktops hosts automatically mount autofs home dirs when they'll most likely not be used could cause a resource issue on the file server. This is as a possible security too issue since the system is automatically mounting home dirs without authentication. Description: Ubuntu lucid (development branch) - sync'd from main repos on April 13th Release: 10.04 Package: gdm: Installed: 2.30.0-0ubuntu4 Candidate: 2.30.0-0ubuntu4 Version table: *** 2.30.0-0ubuntu4 0 500 http://apt-dev/ubuntu/ lucid/main Packages 100 /var/lib/dpkg/status What was done: Face browser disabled per: https://wiki.ubuntu.com/SecurityTeam/FAQ#GNOME%20Display%20Manager%20%28gdm%29 sudo -u gdm gconftool-2 --set --type boolean /apps/gdm/simple-greeter/disable_user_list true Expected behavior: GDM displays username prompt with no filesystems mounted with the exception of those in /etc/fstab. Once a user logs in successfully their home dir should automount. Actual behavior: GDM displays username prompt, up to 100+ home dirs from /etc/autofs.home are mounted. There is a bug filed in upstream for this as well: https://bugzilla.gnome.org/show_bug.cgi?id=607728 To manage notifications about this bug go to: https://bugs.launchpad.net/gdm/+bug/562509/+subscriptions -- Mailing list: https://launchpad.net/~desktop-packages Post to : [email protected] Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp
