# Disabling symbolic-links is recommended to prevent assorted security risks
# Settings user and group are ignored when systemd is used.
# If you need to run mysqld under a different user or group,
# customize your systemd unit file for mariadb according to the
# instructions in http://fedoraproject.org/wiki/Systemd
This is more likely to indicate internal InnoDB corruption, though it could also indicate that you don't have disk space for what you're trying. Look at your MySQL log to see if there's anything of note in there.