log event entry exceeded max_allowed_packet

[sanmai]

Как это лечить?

На мастере: 4.1.20
На слейве: 5.0.51a

[ERROR] Error reading packet from server: log event entry exceeded max_allowed_packet; Increase max_allowed_packet on master ( server_errno=1236)
[ERROR] Got fatal error 1236: 'log event entry exceeded max_allowed_packet; Increase max_allowed_packet on master' from master when reading data from binary log
[Note] Slave I/O thread exiting, read up to log 'master-bin.000003', position 81112

max_allowed_packet и тут и там 64M.

Спасибо за ответы.