Comment 5 for bug 1172752

I use LightDM in multiuser login VNC configuration similar to one described at http://www.ibm.com/developerworks/linux/library/os-multiuserloginsvnc/index.html

In such a setup double-spawning is a major issue. The reason is two childs is spawned once user logs in, while just one child is killed once user logs out. This leads to the one "beautiful" moment when new user can not log in and you have more than 100 orphaned child lightdm processes in `ps` output.

I tried to use the patch mentioned above, but got no luck because this patch cures the sympthoms, but does not cure the true disease - double spawning.