I can confirm that one /etc/init.d/sshd restart after seems to fix the issue with the zombie processes.
-- sshd zombie processes and strange behavior after karmic upgrade https://bugs.launchpad.net/bugs/407428 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs