mysql master master replication, master log position not changing

I have setup master-master replication on database set on two servers (say 1.1.1.1 & 2.2.2.2), I have edited the my.cnf file to:

server-id               = 1
log_bin                 = /var/log/mysql/mysql-bin.log
expire_logs_days        = 10
max_binlog_size         = 800M
binlog_do_db            = mydb
relay-log               = /var/log/mysql/relay-bin
relay-log-index         = /var/log/mysql/relay-bin.index
relay-log-info-file     = /var/log/mysql/relay-bin.info
log_slave_updates       = 1


server-id               = 2
log_bin                 = /var/log/mysql/mysql-bin.log
expire_logs_days        = 10
max_binlog_size         = 8888888800M
binlog_do_db            = mydb
relay-log               = /var/log/mysql/relay-bin
relay-log-index         = /var/log/mysql/relay-bin.index
relay-log-info-file     = /var/log/mysql/relay-bin.info
log_slave_updates       = 1

I checked the master status on 1.1.1.1 server:

mysql> show master status;
+------------------+----------+--------------+------------------+
| File             | Position | Binlog_Do_DB | Binlog_Ignore_DB |
+------------------+----------+--------------+------------------+
| mysql-bin.001185 |   110989 | mydb         |                  |
+------------------+----------+--------------+------------------+

And here is the slave status on 2.2.2.2:

mysql> show slave status\G;
*************************** 1. row ***************************
               Slave_IO_State: Waiting for master to send event
                  Master_Host: 1.1.1.1
                  Master_User: replicator
                  Master_Port: 4791
                Connect_Retry: 60
              Master_Log_File: mysql-bin.001185
          Read_Master_Log_Pos: 107
               Relay_Log_File: relay-bin.000006
                Relay_Log_Pos: 253
        Relay_Master_Log_File: mysql-bin.001185
             Slave_IO_Running: Yes
            Slave_SQL_Running: Yes
              Replicate_Do_DB: 
          Replicate_Ignore_DB: 
           Replicate_Do_Table: 
       Replicate_Ignore_Table: 
      Replicate_Wild_Do_Table: 
  Replicate_Wild_Ignore_Table: 
                   Last_Errno: 0
                   Last_Error: 
                 Skip_Counter: 0
          Exec_Master_Log_Pos: 107
              Relay_Log_Space: 549
              Until_Condition: None
               Until_Log_File: 
                Until_Log_Pos: 0
           Master_SSL_Allowed: No
           Master_SSL_CA_File: 
           Master_SSL_CA_Path: 
              Master_SSL_Cert: 
            Master_SSL_Cipher: 
               Master_SSL_Key: 
        Seconds_Behind_Master: 0
Master_SSL_Verify_Server_Cert: No
                Last_IO_Errno: 0
                Last_IO_Error: 
               Last_SQL_Errno: 0
               Last_SQL_Error: 
  Replicate_Ignore_Server_Ids: 
             Master_Server_Id: 1

When I restart mysql, on 2.2.2.2 it automatically replicates the previous log files data, I am not sure what I am doing wrong here. Can anyone help ? Thanks.