mariabackup.incremental_backup failed with memory allocation failure

mariabackup.incremental_backup '64k,innodb' w4 [ fail ]

        Test ended at 2019-11-30 03:48:21

CURRENT_TEST: mariabackup.incremental_backup

[00] 2019-11-30 03:48:21 Connecting to MySQL server host: localhost, user: root, password: set, port: 16020, socket: /mnt/buildbot/build/mariadb-10.2.30/mysql-test/var/tmp/4/mysqld.1.sock

[00] 2019-11-30 03:48:21 Using server version 10.2.30-MariaDB-debug-log

/mnt/buildbot/build/mariadb-10.2.30/extra/mariabackup/mariabackup based on MariaDB server 10.2.30-MariaDB Linux (i686)

[00] 2019-11-30 03:48:21 incremental backup from 6078476 is enabled.

[00] 2019-11-30 03:48:21 uses posix_fadvise().

[00] 2019-11-30 03:48:21 cd to /mnt/buildbot/build/mariadb-10.2.30/mysql-test/var/4/mysqld.1/data/

[00] 2019-11-30 03:48:21 open files limit requested 1024, set to 1024

[00] 2019-11-30 03:48:21 InnoDB: The page size of the database is set to 65536.

[00] 2019-11-30 03:48:21 mariabackup: using the following InnoDB configuration:

[00] 2019-11-30 03:48:21 innodb_data_home_dir = 

[00] 2019-11-30 03:48:21 innodb_data_file_path = ibdata1:12M:autoextend

[00] 2019-11-30 03:48:21 innodb_log_group_home_dir = ./

[00] 2019-11-30 03:48:21 InnoDB: Using Linux native AIO

2019-11-30  3:48:21 3069069248 [Note] InnoDB: Number of pools: 1

[00] 2019-11-30 03:48:21 mariabackup: Generating a list of tablespaces

2019-11-30  3:48:21 3069069248 [Warning] InnoDB: Allocated tablespace ID 5 for test/t, old maximum was 0

[00] 2019-11-30 03:48:21 >> log scanned up to (6083805)

[00] 2019-11-30 03:48:21 mariabackup: Starting 2 threads for parallel data files transfer

2019-11-30  3:48:21 3041913664 [ERROR] InnoDB: mmap(1073741824 bytes) failed; errno 12

[02] 2019-11-30 03:48:21 Can't allocate 1073741824 bytes

[02] 2019-11-30 03:48:21 mariabackup: error: failed to initialize page write filter.

[01] 2019-11-30 03:48:21 Copying ibdata1 to /mnt/buildbot/build/mariadb-10.2.30/mysql-test/var/4/tmp/backup_inc1/ibdata1.delta

[02] 2019-11-30 03:48:21 mariabackup: xtrabackup_copy_datafile() failed.

[00] FATAL ERROR: 2019-11-30 03:48:21 failed to copy datafile.

mysqltest: At line 53: exec of '/mnt/buildbot/build/mariadb-10.2.30/extra/mariabackup/mariabackup --defaults-file=/mnt/buildbot/build/mariadb-10.2.30/mysql-test/var/4/my.cnf --backup --parallel=2 --ftwrl-wait-timeout=5 --ftwrl-wait-threshold=300 --ftwrl-wait-query-type=all --target-dir=/mnt/buildbot/build/mariadb-10.2.30/mysql-test/var/4/tmp/backup_inc1 --incremental-basedir=/mnt/buildbot/build/mariadb-10.2.30/mysql-test/var/4/tmp/backup' failed, error: 256, status: 1, errno: 11

Output from before failure:

i

1

2

The result from queries just before the failure was:

< snip >

connect  con1,localhost,root,,;

SET GLOBAL innodb_flush_log_at_trx_commit = 1;

INSERT INTO t VALUES(1);

# Create full backup , modify table, then create incremental/differential backup

BEGIN;

INSERT INTO t VALUES(0);

DELETE FROM t WHERE i=0;

connection default;

COMMIT;

# Generate enough aria log records to increase area log file size

SELECT * FROM t;

i

1

2