Evernote is a popular cloud-based note-taking application. It has the advantage of being available on many platforms, thus notes taken on an Android phone are readily available on the desktop, and vice versa.

There are many tasks necessary to do since PID 1 is started by kernel before the system can do any useful work. And those tasks ideally run as parallel as possible. Unfortunately, sometimes the dependencies and ordering can get wrong resulting into race conditions or deadlocks.