I think the problem still exists with Xsession when use gdm to login, at least in 12.04.5 LTS: (Yeah I know the release is not officially supported any more, just in case anybody is interested to trace back) (For the moment I leave the comment here, before somebody is sure this is related to some other issue) ------------------------------------------------------------------ Part of the command ps axjf (The full result of this command is in the attachment): 1543 2227 1539 1539 ? -1 Sl 0 0:00 \_ /usr/lib/gdm/gdm-session-worker 2227 2502 2502 2502 ? -1 Ssl 1001 0:00 \_ gnome-session --session=ubuntu 2502 2547 2502 2502 ? -1 Z 1001 0:00 \_ [Xsession] <defunct>
The zombie Xsession process, listed with the ps -elf command: $ ps -elf | grep defunct 1 Z theloginuser 2547 2502 0 80 0 - 0 exit 06:06 ? 00:00:00 [Xsession] <defunct> The gnome-session parent process of the zombie, listed with the ps -elf command: 4 S theloginuser 2502 2227 0 80 0 - 98064 poll_s 06:06 ? 00:00:00 gnome-session --session=ubuntu ------------------------------------------------------------------ Version infomation: $ apt-cache policy gnome-session gnome-session: Installed: 3.2.1-0ubuntu8 Candidate: 3.2.1-0ubuntu8 Version table: *** 3.2.1-0ubuntu8 0 500 http://mirror.aarnet.edu.au/pub/ubuntu/archive/ precise/main amd64 Packages 100 /var/lib/dpkg/status $ lsb_release -a No LSB modules are available. Distributor ID: Ubuntu Description: Ubuntu 12.04.5 LTS Release: 12.04 Codename: precise ------------------------------------------------------------------ There are reports on the Internet that this phenomenon may also occur in some old version of Fedora. ** Attachment added: "Xsession_zombie_ps_axjf.txt" https://bugs.launchpad.net/ubuntu/+source/gnome-session/+bug/250696/+attachment/4663575/+files/Xsession_zombie_ps_axjf.txt -- You received this bug notification because you are a member of Desktop Packages, which is subscribed to gnome-session in Ubuntu. https://bugs.launchpad.net/bugs/250696 Title: Many processes are zombies Status in gnome-session package in Ubuntu: Fix Released Bug description: A number of processes sit in the zombie status. This seems to be the situation all the time. Attached is a screenshot showing the zombie processes at a point in time. I told easycrypt to 'End process', but it became a zombie as well. Running up-to-date Intrepid. I did not experience this on Hardy. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/gnome-session/+bug/250696/+subscriptions -- Mailing list: https://launchpad.net/~desktop-packages Post to : desktop-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp