After a hard reboot that was necessary due to an issue with the NFS server containing the home directory, Akonadi fails to start up. The only resolution found so far was to delete .local/share/akonadi/ and .config/akonadi and redo the configuration. So far, this kind of hard reboot was necessary twice while kmail was running, every time resulting in the described issue. Self test log attached below. Reproducible: Always Operating system is OpenSuse 12.3 with all software components from the official repositories. Home directory is on NFS server running Ubuntu 12.04.
Created attachment 84022 [details] Akonadi self test report on startup.
Sorry, but how is this a bug? If you forcibly shutdown system with database stored on a network storage, you cannot expect anything else than database corruption. Either don't store ~/.local/share/akonadi with MySQL data on NFS, use system (or remote) MySQL instance, or use SQLite (but you will pay horrible performance penalty there if you use KMail). Closing as invalid, as this is not a bug report or a feature request and nothing we can do about in Akonadi. Sorry.