mariabackup.slave_provision_nolock fails often with "try increasing innodb_log_file_size"

This tests fails many times a day on different machines, with mariabackup complaining that it can't read redo log up to certain lsn.

The massive (multiple times a day each day) failures started approx in March 2025 (cross-reference ) , but it failed like this also before March 2025, just not in such massive scale.