It's not clear why it doesn't fail before prepare, as exactly the same I/O requests are issued. I think the fix is to disable O_DIRECT when manipulating xtrabackup_logfile before and after recovery.
It's not clear why it doesn't fail before prepare, as exactly the same I/O requests are issued. I think the fix is to disable O_DIRECT when manipulating xtrabackup_logfile before and after recovery.