Hi! Thanks for taking the time to use debugger to get the stack trace. As this is not an issue in the Debian packaging, but more a upstream MariaDB issues, could you please report this issue at https://jira.mariadb.org/ ? (and mark this Debian bug as 'forwarded')
- Bug#1110683: mariadb-plugin-mroonga: incorrect mroonga c... Marc Lehmann
- Bug#1110683: [debian-mysql] Bug#1110683: mariadb-pl... Otto Kekäläinen

