I have experienced this bug today. Installing ulatencyd renders an unbootable system (because it causes kernel panic). Uninstalling it solves the problem.
cat /etc/lsb-release ------------------------- DISTRIB_ID=Ubuntu DISTRIB_RELEASE=13.10 DISTRIB_CODENAME=saucy DISTRIB_DESCRIPTION="Ubuntu 13.10" uname -a ----------- Linux ... 3.11.0-18-generic #32-Ubuntu SMP Tue Feb 18 21:11:14 UTC 2014 x86_64 x86_64 x86_64 GNU/Linux aptitude show ulatencyd ------------------------------- Package: ulatencyd Version: 0.5.0-8 Section: universe/utils Maintainer: Ubuntu Developers <ubuntu-devel-disc...@lists.ubuntu.com> Architecture: amd64 Uncompressed Size: 403 k Depends: libc6 (>= 2.17), libdbus-1-3 (>= 1.0.2), libdbus-glib-1-2 (>= 0.78), libglib2.0-0 (>= 2.22.0), liblua5.1-0, libpolkit-gobject-1-0 (>= 0.99), libxcb1, dbus, lua5.1 | lua, lua-posix PreDepends: dpkg (>= 1.15.7.2) Recommends: consolekit Conflicts: ulatencyd -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1034099 Title: Kernel panic with ulatencyd on kernel 3.2.0-29-generic Status in “linux” package in Ubuntu: Fix Released Status in “ulatencyd” package in Ubuntu: Invalid Status in “linux” source package in Precise: Fix Released Status in “linux” source package in Quantal: Fix Released Bug description: After latest kernel update to 3.2.0-29 Ubuntu 12.04 causes kernel panic on boot with ulatencyd installed. Removing the ulatencyd solves the problem. Attached kernel log. Seems that this is related to the network manager process. ProblemType: Bug DistroRelease: Ubuntu 12.04 Package: ulatencyd (not installed) ProcVersionSignature: Ubuntu 3.2.0-29.46-generic 3.2.24 Uname: Linux 3.2.0-29-generic x86_64 NonfreeKernelModules: nvidia ApportVersion: 2.0.1-0ubuntu12 Architecture: amd64 Date: Tue Aug 7 19:56:18 2012 InstallationMedia: Kubuntu 12.04 LTS "Precise Pangolin" - Release amd64 (20120423) ProcEnviron: LANGUAGE=pl_PL TERM=xterm PATH=(custom, no user) LANG=pl_PL.UTF-8 SHELL=/bin/bash SourcePackage: ulatencyd UpgradeStatus: No upgrade log present (probably fresh install) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1034099/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp