Oracle Database Discussions

Hi,

we have Oracle 11.2.0 standard running under Windows Xp 32

At last time alert log is full of error? like

Tue Dec 18 11:14:26 2012
Errors in file c:\oracle\diag\rdbms\ \trace\ratik_j000_4448.trc:
Errors in file c:\oracle\diag\rdbms\ \trace\ratik_j000_4448.trc:

and Db is open and in read/write mode
each trace file is over 4 GB size and new trace files appear and they all are like <sid>j000<>.trc

all trace files contains following messages

Trace file c:\oracle\diag\rdbms\ \trace\<sid>j0003300.trc
Oracle Database 11g Release 11.2.0.1.0 - Production
Windows XP Version V5.1 Service Pack 3
CPU : 4 - type 586, 4 Physical Cores
Process Affinity : 0x0x00000000
Memory (Avail/Total): Ph:705M/2986M, Ph+PgF:3533M/6914M, VA:978M/2047M
Instance name: ratik
Redo thread mounted by this instance: 1
Oracle process number: 19
Windows thread id: 3300, image: ORACLE.EXE (J000)


*** 2013-03-12 09:07:08.906
*** SESSION ID:(192.5) 2013-03-12 09:07:08.906
*** CLIENT ID:() 2013-03-12 09:07:08.906
*** SERVICE NAME:(SYS$USERS) 2013-03-12 09:07:08.906
*** MODULE NAME:(EM_PING) 2013-03-12 09:07:08.906
*** ACTION NAME:(AGENT_STATUS_MARKER) 2013-03-12 09:07:08.906

--------Dumping Sorted Master Trigger List --------
Trigger Owner : SYSMAN
Trigger Name : MGMT_JOB_EXEC_UPDATE
--------Dumping Trigger Sublists --------
trigger sublist 0 :
trigger sublist 1 :
Trigger Owner : SYSMAN
Trigger Name : MGMT_JOB_EXEC_UPDATE
trigger sublist 2 :
trigger sublist 3 :
trigger sublist 4 :



what it can be and whow can I fix it?

Thank's