lsnrctl stop 监听启动和停止都报错，数据库能正常打开 oracle11g linux

[oracle@dbPrimary admin]$ lsnrctl stopLSNRCTL for Linux: Version 11.1.0.6.0 - Production on 13-JUL-2012 19:49:52Copyright (c) 1991, 2007, Oracle.  All rights reserved.Connecting to (DESCRIPTION=(ADDRESS=(PROTOCOL=TCP)(HOST=dbPrimary)(PORT=1521)))
TNS-12535: TNS:operation timed out
 TNS-12560: TNS:protocol adapter error
  TNS-00505: Operation timed out
   Linux Error: 110: Connection timed out
Connecting to (DESCRIPTION=(ADDRESS=(PROTOCOL=IPC)(KEY=EXTPROCO)))
TNS-12541: TNS:no listener
 TNS-12560: TNS:protocol adapter error
  TNS-00511: No listener
   Linux Error: 2: No such file or directory
[oracle@dbPrimary admin]$ vi listener.ora # listener.ora Network Configuration File: /home/oracle/app/oracle/product/11.2.0/dbhome_1/network/admin/listener.ora
# Generated by Oracle configuration tools.SID_LIST_LISTENER =
(SID_LIST =
  (SID_DESC =
    (SID_NAME = PLSExtProc)
    (ORACLE_HOME = /home/oracle/app/oracle/product/11.2.0/dbhome_1)
    (PROGRAM = extproc)
  )
)
LISTENER =
  (DESCRIPTION_LIST =
    (DESCRIPTION =
      (ADDRESS = (PROTOCOL = TCP)(HOST = dbPrimary)(PORT = 1521))
      (ADDRESS = (PROTOCOL = IPC)(KEY = EXTPROCO))
    )
  )SUBSCRIBE_FOR_NODE_DOWN_EVENT_LISTENER=OFF[oracle@dbPrimary admin]$ vi tnsnas.ora 
dbPrimary =
(DESCRIPTION =
(ADDRESS_LIST =
(ADDRESS = (PROTOCOL = TCP)(HOST = dbPrimary)(PORT = 1521))
)
(CONNECT_DATA =
(SERVER = DEDICATED)
(SERVICE_NAME = orcl)
)
)
dbStandby =
(DESCRIPTION =
(ADDRESS_LIST =
(ADDRESS = (PROTOCOL = TCP)(HOST = dbStandby)(PORT = 1521))
)
(CONNECT_DATA =
(SERVER = DEDICATED)
(SERVICE_NAME = orcl)
[oracle@dbPrimary admin]$ vi sqlnet.ora # sqlnet.ora Network Configuration File: /home/oracle/app/oracle/product/11.2.0/dbhome_1/network/admin/sqlnet.ora
# Generated by Oracle configuration tools.NAMES.DIRECTORY_PATH= (TNSNAMES, EZCONNECT)[oracle@dbPrimary admin]$ vi /etc/hosts# Do not remove the following line, or various programs
# that require network functionality will fail.
192.168.1.101     dbPrimary   dbPrimary
127.0.0.1         dbPrimary   localhost这个问题怎么解决？？？各位帮帮忙...