# mariabackup --backup --parallel=16 --extra-lsndir=/data/backup_3306 --tmpdir=/tmp/backup_3306 --target-dir=/data/backup_3306                   

170713 11:56:59 Connecting to MySQL server host: 127.0.0.1, user: root, password: set, port: 3306, socket: /data/mysql/vars/mysql.sock

Using server version 10.2.7-MariaDB-log

mariabackup based on MariaDB server 10.2.7-MariaDB Linux (x86_64) 

xtrabackup: uses posix_fadvise().

xtrabackup: cd to /data/mysql/data/

xtrabackup: open files limit requested 102400, set to 102400

xtrabackup: using the following InnoDB configuration:

xtrabackup:   innodb_data_home_dir = /data/mysql/data

xtrabackup:   innodb_data_file_path = ibdata1:1G;ibdata2:1G;ibdata3:1G;ibdata4:1G:autoextend

xtrabackup:   innodb_log_group_home_dir = /data/mysql/data

2017-07-13 11:56:59 0x7fcb17ead880 InnoDB: Using Linux native AIO

xtrabackup: using O_DIRECT

xtrabackupp: Warning: ignoring innodb_flush_method = O_DIRECT on Windows.

2017-07-13 11:56:59 140510256355456 [Note] InnoDB: Number of pools: 1

mariabackup: Error writing file '/data/backup_3306/ib_logfile0' (Errcode: 14 "Bad address")

xtrabackup: Error: write to logfile failed

xtrabackup: Error: xtrabackup_copy_logfile() failed.