Errors in file /oracle/SID/saptrace/background/SID_smon_12383.trc:
ORA-00600: internal error code, arguments: [2662], [1798], [4161378953], [1798], [4161379611], [1677
74185], [], []

Errors in file /oracle/SID/saptrace/usertrace/SID_ora_12391.trc:
ORA-00600: internal error code, arguments: [4194], [32], [4], [], [], [], [], []

Fatal internal error happened while SMON was doing active transaction recovery.

Errors in file /oracle/SID/saptrace/background/SID_smon_12383.trc:
ORA-00600: internal error code, arguments: [2662], [1798], [4161378953], [1798], [4161379611], [1677
74185], [], []


In the above referred smon trace files, i get the below entries

KSTDUMP: End of in-memory trace dump
error 600 detected in background process