Seems to me that it's akonadi that is failing to shut mysqld down properly when it is running 5.5 that is causing the issue - possibly with lack of database migration to 5.6?
There's a separate crash bug in mysqld that should be fixed (it shouldn't segfault no matter what really), but I'll add a task back for akonadi as it is the akonadi package that needs to keep affairs in ~/.local/share/akonadi/ in order.
Seems to me that it's akonadi that is failing to shut mysqld down properly when it is running 5.5 that is causing the issue - possibly with lack of database migration to 5.6?
There's a separate crash bug in mysqld that should be fixed (it shouldn't segfault no matter what really), but I'll add a task back for akonadi as it is the akonadi package that needs to keep affairs in ~/.local/ share/akonadi/ in order.