Check that your system has enough resources to start a concurrent manager proces?/Concurrent Managers are not coming up?

When i go and check concurrent manager logfile i found below statements.


The SQL statement
Could not initialize the Service Manager FNDSM_CTSSP_EBSOLPT. Verify that CTSSP has been registered for concur
rent processing.
ORACLE error 600 in cleanup_node

Cause: cleanup_node failed due to ORA-00600: internal error code, arguments: [pesldl01_Get_Object: shm_open: errno 2 e
rrmsg No such file or di], [], [], [], [], [], [], [], [], [], [], [].

The SQL statem
Routine AFPEIM encountered an error while starting concurrent manager GEPSWFBG with library /u01/ebsapp/appl/fnd/1
1.5.0/bin/FNDLIBR.

Check that your system has enough resources to start a concurrent manager process. Contact your system administrator :
30-JAN-2013 13:11:58
Starting GEPSWFBG Concurrent Manager : 30-JAN-2013 13:11:58

ORACLE error 600 in insert_fcp.


Symtomps:
unable to get the shared memory and unable to bring up the concurrent managers.
                    (OR)
issue with memory.