I followed the instructions here - https://wiki.ubuntu.com/DebuggingDBus to add debugging info to dbus. I was out and experienced the bug. When I got back I ran sudo dbus-monitor --system for few minutes and collected the attached output.
-- You received this bug notification because you are a member of Ubuntu Touch seeded packages, which is subscribed to dbus in Ubuntu. https://bugs.launchpad.net/bugs/1394777 Title: dbus daemon running at 100% Status in “dbus” package in Ubuntu: New Bug description: This is on krillin r166. dbus-daemon was running at 100% for a few hours today. I noticed that when I launch System Settings, it causes dbus-daemon to run at lose to 100% until it opens. I also noticed that when I launched Systen Settings, after it finally opened, dbus-daemon settled down. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/dbus/+bug/1394777/+subscriptions -- Mailing list: https://launchpad.net/~touch-packages Post to : touch-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~touch-packages More help : https://help.launchpad.net/ListHelp
