It seems there was crash, "Core dump to |/usr/share/apport/apport.6761 pipe failed", can you check and see if you have a crash report in /var/crash?
-- Feisty freeze, kernel (?) tries to access DVD drive https://launchpad.net/bugs/75295 -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
