Question : ora-600 errors

Hi,
I am running Oracle 8.1.6 on Linux.
Lately we have been getting a lot of ORA-00600 errors in the trace.i Understand that these are oracle internal errors. But if anyone knows what these errros stand for or have a resolutoin, i would appreciate it.
the errors we get are:

ORA-00600: internal error code, arguments: [6856], [0], [0], [], [], [], [], []
ORACLE Instance ORCL (pid = 6) - Error 600 encountered while recovering transact
ion (12, 46) on object 21815

ORA-00600: internal error code, arguments: [6006], [1], [], [], [], [], [], []

ORA-00600: internal error code, arguments: [4146], [424], [416], [], [], [], [], []

ORA-00600: internal error code, arguments: [4511], [], [], [], [], [], [], []

also the smon logs grows huge in a very little time. it grows to 2GB. I am not sure if these are related.

please respond.
regards,
parag

Answer : ora-600 errors

Even I encountered this kind of ORA-600 problem during our batch processing (we called it memory-leak). Strangely, a rerun of the script/process will be successful most of the times. Our DBAs got a patch from Oracle Corp for this problem. You should contact Oracle Worldwide Support. The numbers shown in [] have some significance.