Can't start two listeners at the same time

Hello -
I am running Oracle 10g R2 on Solaris 10. I am getting the following error when I try to start my second listener "TNS-01106: Listener using listener name ccn_listener has already been started". There are multiple VIPA's assigned to the server, so I am trying to start two listeners at the same time (I can start each one separately). The different IP's are referenced in the listeners (even though they use port 1521), so there should not be a conflict. I also gave the two listeners distinct non-default names. The listeners are running under two differenct Oracle homes.
Here is the code of the listeners:
listener 1:
PHD_LISTENER =
(DESCRIPTION_LIST =
(DESCRIPTION =
(ADDRESS = (PROTOCOL = TCP)(HOST = 10.49.236.119)(PORT = 1521))
(ADDRESS = (PROTOCOL = IPC)(KEY = EXTPROC0))
SID_LIST_PHD_LISTENER =
(SID_LIST =
(SID_DESC =
(SID_NAME = PLSExtProc)
(ORACLE_HOME = /u02/app/oracle/product/10.2.0/db_1)
(PROGRAM = extproc)
(SID_DESC =
(GLOBAL_DBNAME=phdv410g)
(ORACLE_HOME = /u02/app/oracle/product/10.2.0/db_1)
(SID_NAME = phdv410g)
listener 2:
CCN_LISTENER =
(DESCRIPTION_LIST =
(DESCRIPTION =
(ADDRESS = (PROTOCOL = TCP)(HOST = 10.49.236.131)(PORT = 1521))
(ADDRESS = (PROTOCOL = IPC)(KEY = EXTPROC0))
SID_LIST_CCN_LISTENER =
(SID_LIST =
(SID_DESC =
(SID_NAME = PLSExtProc)
(ORACLE_HOME = /u01/app/oracle/product/10.2.0/db_1)
(PROGRAM = extproc)
(SID_DESC =
(GLOBAL_DBNAME=ccn10gt1)
(ORACLE_HOME = /u01/app/oracle/product/10.2.0/db_1)
(SID_NAME = ccn10gt1)
If anyone has any ideas about why I can't start these two listeners togethers, I would really appreciate it.
Thanks!

Hi,
Look at the error: "Listener already started"...
Can you check if that is right ?
ps -ef | egrep lsnrWaiting for feedback.
Regards,
Yoann.

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