I've had similar problems. It seems to me that the default Akonadi options for MySQL include a table_cache parameter, but it's been deprecated since 5.1 and in 5.6 prevents a start of the database. Removing this options did the trick for me.
In MariaDB documentation there's a remark that "all versions of MariaDB are based on MySQL 5.1 and greater, thus the table_cache option is deprecated in favor of table_open_cache." -- You received this bug notification because you are a member of Ubuntu Server Team, which is subscribed to mysql-5.6 in Ubuntu. https://bugs.launchpad.net/bugs/1437846 Title: akonadi mysql 5.6 crash with signal 11 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/akonadi/+bug/1437846/+subscriptions -- Ubuntu-server-bugs mailing list Ubuntu-server-bugs@lists.ubuntu.com Modify settings or unsubscribe at: https://lists.ubuntu.com/mailman/listinfo/ubuntu-server-bugs