Long semaphore wait error on galera.MW-388

galera.MW-388 'innodb'                   w1 [ fail ]  Found warnings/errors in server log file!

        Test ended at 2019-06-18 03:46:15

line

2019-06-18  3:45:15 140319937001216 [Warning] InnoDB: A long semaphore wait:

2019-06-18  3:45:46 140319937001216 [Warning] InnoDB: A long semaphore wait:

^ Found warnings in /dev/shm/var/1/log/mysqld.1.err

ok

 - saving '/dev/shm/var/1/log/galera.MW-388-innodb/' to '/dev/shm/var/log/galera.MW-388-innodb/'

Retrying test galera.MW-388, attempt(2/3)...

worker[1] > Restart  - not started

worker[1] > Restart  - not started

galera.galera_as_master 'innodb'         w2 [ pass ]   2871

worker[2] > Restart [mysqld.1 - pid: 9007, winpid: 9007] - using different config file

worker[2] > Restart [mysqld.2 - pid: 9009, winpid: 9009] - using different config file

worker[2] > Restart [mysqld.3 - pid: 9011, winpid: 9011] - using different config file

galera.MW-388 'innodb'                   w1 [ retry-pass ]   2063