180921 15:48:25 mysqld_safe Starting mysqld daemon with databases from /var/lib/mysql
180921 15:48:25 [Note] /usr/libexec/mysqld (mysqld 5.5.50-MariaDB) starting as process 20937 ...
180921 15:48:25 InnoDB: The InnoDB memory heap is disabled
180921 15:48:25 InnoDB: Mutexes and rw_locks use GCC atomic builtins
180921 15:48:25 InnoDB: Compressed tables use zlib 1.2.7
180921 15:48:25 InnoDB: Using Linux native AIO
180921 15:48:25 InnoDB: Initializing buffer pool, size = 128.0M
180921 15:48:25 InnoDB: Completed initialization of buffer pool
180921 15:48:25 InnoDB: highest supported file format is Barracuda.
InnoDB: The log sequence number in ibdata files does not match
InnoDB: the log sequence number in the ib_logfiles!
180921 15:48:25  InnoDB: Database was not shut down normally!
InnoDB: Starting crash recovery.
InnoDB: Reading tablespace information from the .ibd files...
InnoDB: Error: trying to add tablespace 23 of name './kirss/kirss_access_namespace.ibd'
InnoDB: to the tablespace memory cache, but tablespace
InnoDB: 23 of name './roundcube/system.ibd' already exists in the tablespace
InnoDB: memory cache!
180921 15:48:25 mysqld_safe mysqld from pid file /var/run/mariadb/mariadb.pid ended