Same thing here takes almost all of 1 core on a 4 core machine running fully updated lucid
1044 root 20 0 349M 47652 16204 R 94.0 0.8 9h35:51 /usr/bin/X :0 -nr -verbose -auth /var/run/gdm/auth-for-gdm-qi3inD/database -nolisten tcp vt7 -- System sluggish and 100% CPU in guest session https://bugs.launchpad.net/bugs/452239 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