Comment 4 for bug 1401775

It seems we're getting the same errors except that "xtrabackup: error: it looks like InnoDB log has wrapped around before xtrabackup could process all records due to either log copying being too slow, or log files being too small." is not printed out:

Eg #1
xtrabackup: error: log block numbers mismatch:
xtrabackup: error: expected log block no. 637407195, but got no. 638455767 from the log file.
xtrabackup: Error: xtrabackup_copy_logfile() failed.
innobackupex: got a fatal error with the following stacktrace: at /usr/bin/innobackupex line 2695.

Eg #2
xtrabackup: error: log block numbers mismatch:
xtrabackup: error: expected log block no. 647432068, but got no. 648480640 from the log file.
xtrabackup: Error: xtrabackup_copy_logfile() failed.

This problem seems to be occurring on Xtrabackup 2.2.6 and 2.2.7