MySQL Replication server_errno=2020

080927 15:28:42 [Note] Slave: connected to master 'test@localhost:3306',replication resumed in log 'mysql-bin.000003' at position 34699088
080927 15:28:42 [ERROR] Error reading packet from server: Got packet bigger than 'max_allowed_packet' bytes ( server_errno=2020)
080927 15:28:42 [Note] Slave I/O thread: Failed reading log event, reconnecting to retry, log 'mysql-bin.000003' position 34699088
080927 15:28:42 [Note] Slave: connected to master 'test@localhost:3306',replication resumed in log 'mysql-bin.000003' at position 34699088

$> vi /etc/my.cnf
# max_allowed_packet = 1M # modify it to
max_allowed_packet = 10M