I originally thought I had this problem but it turns out it was nothing to do with tracker.
My problem was with the CPU being throttled to 500Mhz if I turned the power supply on at the wrong time during boot up. -- You received this bug notification because you are a member of Ubuntu Touch seeded packages, which is subscribed to tracker in Ubuntu. https://bugs.launchpad.net/bugs/1525628 Title: tracker needs to be killed on every boot Status in tracker package in Ubuntu: Confirmed Bug description: At every boot, tacker-miner-fs and tracker-extract uses all of the processor and needs to be killed manually for computer to work. ProblemType: Bug DistroRelease: Ubuntu 16.04 Package: tracker 1.6.1-1ubuntu1 ProcVersionSignature: Ubuntu 4.3.0-2.11-generic 4.3.0 Uname: Linux 4.3.0-2-generic x86_64 ApportVersion: 2.19.3-0ubuntu2 Architecture: amd64 CurrentDesktop: Unity Date: Sun Dec 13 13:02:58 2015 InstallationDate: Installed on 2015-04-24 (232 days ago) InstallationMedia: Ubuntu 15.04 "Vivid Vervet" - Release amd64 (20150422) SourcePackage: tracker UpgradeStatus: No upgrade log present (probably fresh install) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/tracker/+bug/1525628/+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