ALert Log errors traces.

I found something from alert log file related to an internal error code retruned. I have pasted the alert log text with this. Can anyone please let me know if this can be harmful to the database and how to overcome. What is the reason behind this? I would appreciate if anybody can throw some light on this.
1. The partial memory dump is also pasted from the trace file

Mon Jan 14 14:53:26 2002
Errors in file /software/oracle/home/admin/ipmtdb/udump/ipmtdb_ora_3051.trc:
ORA-00600: internal error code, arguments: [12333], [0], [3], [81], [], [], [], []
Mon Jan 14 14:54:18 2002
Errors in file /software/oracle/home/admin/ipmtdb/udump/ipmtdb_ora_3055.trc:
ORA-00600: internal error code, arguments: [12333], [0], [3], [81], [], [], [], []
Mon Jan 14 14:54:28 2002
Errors in file /software/oracle/home/admin/ipmtdb/udump/ipmtdb_ora_3057.trc:
ORA-00600: internal error code, arguments: [12333], [0], [3], [81], [], [], [], []
Tue Jan 15 00:38:09 2002
Errors in file /software/oracle/home/admin/ipmtdb/udump/ipmtdb_ora_3339.trc:
ORA-00600: internal error code, arguments: [12333], [0], [3], [81], [], [], [], []

partial contents of trace file is
dump file /software/oracle/home/admin/dbname/udump/sidname_ora_18927.trc
Oracle8i Enterprise Edition Release 8.1.5.0.0 - Production
With the Partitioning and Java options
PL/SQL Release 8.1.5.0.0 - Production
ORACLE_HOME = /software/oracle/home
System name: SunOS
Node name: hostname
Release: 5.7
Version: Generic_106541-02
Machine: sun4u
Instance name: sidname
Redo thread mounted by this instance: 1
Oracle process number: 11
Unix process pid: 18927, image: oracle@hostname (TNS V1-V3)

*** SESSION ID:(10.9193) 2002.01.09.00.38.09.000
*** 2002.01.09.00.38.09.000
ksedmp: internal or fatal error
ORA-00600: internal error code, arguments: [12333], [0], [3], [81], [], [], [], []
----- Call Stack Trace -----
calling call entry argument values in hex
location type point (? means dubious value)
-------------------- -------- -------------------- ----------------------------
ksedmp()+160 CALL ksedst()+0 230 ? 1 ? FFBEDB34 ?
FFBED5D8 ? FFBED5BC ? 0 ?
kgeriv()+196 PTR_CALL 00000000 3 ? 0 ? 0 ? 258 ? 3 ? 302D ?
kgesiv()+96 CALL kgeriv()+0 165545C ? 16D3DEC ? 12851EC ?
3 ? FFBEE148 ? 1647600 ?
ksesic3()+48 CALL kgesiv()+0 165545C ? 16D3DEC ? 302D ?
3 ? FFBEE148 ? 2 ?
opitsk()+2164 CALL ksesic3()+0 302D ? 0 ? 0 ? 0 ? 3 ? 0 ?
opiino()+1720 CALL opitsk()+0 0 ? 1656D74 ? 16595F4 ? 0 ?
0 ? 0 ?
opiodr()+5336 PTR_CALL 00000000 FFBEF940 ? 1657F88 ?
1657C00 ? 16BAA58 ? 0 ? 0 ?
opidrv()+1232 CALL opiodr()+0 12B3C60 ? FFBEF564 ?
16554C4 ? 1659400 ? 13691C2 ?
0 ?
sou2o()+20 CALL opidrv()+0 3C ? FFBEF654 ? 16554C4 ?
2F6C6F67 ? 0 ? 2F ?
main()+160 CALL sou2o()+0 FFBEF950 ? 3C ? 4 ?
FFBEF940 ? 1663DB0 ?
1663DB0 ?
_start()+220 CALL main()+0 0 ? FFBEFAFC ? 16AA8B0 ?
1654800 ? 0 ? 0 ?
----- Argument/Register Address Dump -----
Argument/Register addr=ffbedb34. Dump of memory from 0xFFBEDAF4 to 0xFFBEDC34
FFBEDAE0 726E616C 206F7220 66617461
FFBEDB00 6C206572 726F720A 00000000 00000000 00000000 00000000 00000000 00000000