According to https://mariadb.com/kb/en/innodb-system-variables/#innodb_log_buffer_size, the valid range for innodb_log_buffer_size is 262144 to 2147482624 (256KB to 2048MB). However when setting

innodb_log_buffer_size = 2147482624

in the configuration file, I receive during MariaDB restart the following message in the log file:

2025-02-26 22:50:54 0 [Warning] option 'innodb-log-buffer-size': unsigned value 2147482624 adjusted to 2147479552

And using

innodb_log_buffer_size = 2048M

in the configuration file leads to the following in the log file:

2025-02-26 22:54:32 0 [Warning] option 'innodb-log-buffer-size': unsigned value 2147483648 adjusted to 2147479552

Why is that? Is this a bug in the code or in the documentation? From my understanding 2G = 2048M = 2147483648