After some more tests, It looks like for each new open window in X x-session-manager makes new connection to /tmp/.ICE-unix/{PID of x-session-manager}
It could be followed by runing this command lsof -p `ps -e | grep x-session | cut -d" " -f1` | grep ICE-unix | wc -l It will show how many times it open this file.. And it almost never closes it... So set open file limit to 65000, helps only for few days, depends on you usage of the machine. If 1024 was enough for me for 2-3 days, 65k will work for few month ;-) Good! Looks like a bug in gnome for me. -- x-session manager eats 100% CPU, nautilus won't start, applications won't start https://bugs.launchpad.net/bugs/107950 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