Oracle Database Discussions

First of all, sorry for my pour English.

O.S.:
pceudb9:~ # cat /etc/*release
SUSE Linux Enterprise Server 10 (x86_64)
VERSION = 10
PATCHLEVEL = 2

Database:

SQL> select * from v$version;

BANNER
--------------------------------------------------------------------------------
Oracle Database 11g Enterprise Edition Release 11.2.0.1.0 - 64bit Production
PL/SQL Release 11.2.0.1.0 - Production
CORE 11.2.0.1.0 Production
TNS for Linux: Version 11.2.0.1.0 - Production
NLSRTL Version 11.2.0.1.0 - Production

SQL>


I'm having this process on TOP whith high CPU usage:


oracle@pceudb9:~> top
top - 15:22:25 up 576 days, 21:09, 3 users, load average: 1.32, 1.50, 1.53
Tasks: 326 total, 1 running, 325 sleeping, 0 stopped, 0 zombie
Cpu(s): 12.7%us, 0.1%sy, 0.1%ni, 86.7%id, 0.4%wa, 0.0%hi, 0.0%si, 0.0%st
Mem: 66012172k total, 61524088k used, 4488084k free, 1595320k buffers
Swap: 67108856k total, 64748k used, 67044108k free, 18705464k cached

PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND
16026 oracle 16 0 1440m 807m 20m S 100 1.3 28575:34 /u01/app/oragrid/11.2.0/jdk/jre//bin/java -Doracle.supercluster.cluster.server=eonsd -Djava.net.p
6925 oracle 16 0 9880 1528 976 R 0 0.0 0:00.01 top


oracle@pceudb9:~> ps auxww|grep -i 16026|grep -iv grep|grep -iv /u01/app/oragrid/11.2.0/bin/orarootagent.bin
oracle 16026 16.4 1.2 1475532 826580 ? Sl Jul20 28576:32 /u01/app/oragrid/11.2.0/jdk/jre//bin/java -Doracle.supercluster.cluster.server=eonsd -Djava.net.preferIPv4Stack=true -Djava.util.logging.config.file=/u01/app/oragrid/11.2.0/srvm/admin/logging.properties -classpath /u01/app/oragrid/11.2.0/jdk/jre//lib/rt.jar:/u01/app/oragrid/11.2.0/jlib/srvm.jar:/u01/app/oragrid/11.2.0/jlib/srvmhas.jar:/u01/app/oragrid/11.2.0/jlib/supercluster.jar:/u01/app/oragrid/11.2.0/jlib/supercluster-common.jar:/u01/app/oragrid/11.2.0/ons/lib/ons.jar oracle.supercluster.impl.cluster.EONSServerImpl


CPU is always 100% (sometimes more...)
Can somebody help me please? What is this process? This is a bug? I can't find anything on metalink.
Thanks in advice.
Regards
Vitor