galera.galera_var_node_address fails in buildot, Failed to start mysqld or "Transport endpoint is not connected"

galera.galera_var_node_address 'innodb_plugin' w3 [ fail ]

        Test ended at 2017-09-21 06:36:52

CURRENT_TEST: galera.galera_var_node_address

Failed to start mysqld.1

mysqltest failed but provided no output

 - saving '/dev/shm/var/3/log/galera.galera_var_node_address-innodb_plugin/' to '/dev/shm/var/log/galera.galera_var_node_address-innodb_plugin/'

Retrying test galera.galera_var_node_address, attempt(2/3)...

worker[3] > Restart  - not started

galera.galera_var_node_address 'innodb_plugin' w1 [ fail ]  Found warnings/errors in server log file!

        Test ended at 2017-10-06 12:35:49

line

2017-10-06 12:35:43 140182460294912 [Warning] WSREP: Failed to send SYNC signal: -107 (Transport endpoint is not connected)

^ Found warnings in /dev/shm/var/1/log/mysqld.2.err

ok