Oracle Agent - EMD upload error

Temos o seguinte status:

[oracle@svr2342 ~]$ emctl status agent
Oracle Enterprise Manager 11g Release 1 Grid Control 11.1.0.1.0
Copyright (c) 1996, 2010 Oracle Corporation.  All rights reserved.
---------------------------------------------------------------
Agent Version     : 11.1.0.1.0
OMS Version       : 11.1.0.1.0
Protocol Version  : 11.1.0.0.0
Agent Home        : /u00/app/oracle/product/agent11g/svr2342
Agent binaries    : /u00/app/oracle/product/agent11g
Agent Process ID  : 1553
Parent Process ID : 1522
Agent URL         : https://svr2342:3872/emd/main
Repository URL    : https://svr2078.adm.infra:4900/em/upload
Started at        : 2012-11-05 12:13:48
Started by user   : oracle
Last Reload       : 2012-11-05 12:14:21
Last successful upload                       : (none)
Last attempted upload                        : (none)
Total Megabytes of XML files uploaded so far :     0.00
Number of XML files pending upload           :      109
Size of XML files pending upload(MB)         :     6.15
Available disk space on upload filesystem    :    83.36%
Last attempted heartbeat to OMS              : 2012-11-05 12:13:54
Last successful heartbeat to OMS             : unknown
---------------------------------------------------------------
Agent is Running and Ready

Ao tentar fazer upload manual, temos o seguinte erro:

[oracle@svr2342 ~]$ emctl upload agent
Oracle Enterprise Manager 11g Release 1 Grid Control 11.1.0.1.0
Copyright (c) 1996, 2010 Oracle Corporation.  All rights reserved.
---------------------------------------------------------------
EMD upload error: uploadXMLFiles skipped :: OMS version not checked yet. If this issue persists check trace files for ping to OMS related errors.

Ao verificar o log, fica claro o problema:

ERROR pingManager: Did not receive valid response to ping "ERROR-Agent is blocked. Blocked reason is: Agent is out-of-sync with repository. This most likely means that the agent was reinstalled or recovered. Please contact an EM administrator to unblock the agent by performing an agent resync from the console. Please contact EM adminstrator to unblock the agent" 

Para corrigir, basta entrar no agent pelo EM ( SETUP >> AGENT ) e fazer o "Agent Resynchronization".