Trace file:
===========
*** SERVICE NAMESYS$BACKGROUND)
*** SESSION ID3295.1)
ktsmgtur(): TUR was not tuned for 1644 secs
ktsmg_advance_slot(): MMNL advances slot after 1786 seconds
*** 2010-01-10 05:30:11.004
Process m000 is dead (pid=32562, state=3):
Unable to schedule a MMON slave at: Auto Flush Main 1
Attempt to create slave process failed.
Can happen for several reasons:
- No process state objects
- Reached OS set limits
- A shutdown was going on
Check alert log for more details.

CHECKS:
=======
SQL> show parameter process

NAME                                 TYPE        VALUE
———————————— ———– ——————————
processes                            integer     2000

SQL> show parameter session

NAME                                 TYPE        VALUE
———————————— ———– ——————————
sessions                             integer     2318

SQL> select count(*) from v$session;

COUNT(*)
———-
1994

SELECT COUNT(*) FROM v$process;

COUNT(*)
———-
1990

Solution
========
- kill processes which generates the processes ( usually from http)
- restart database
- this error coresponds with ORA-3136

Hope this helps.