The ORA-00600 (ORA 600) error is a generic internal error from Oracle,
and you must look-up the numeric arguments to understand the nature of
the internal error.
A typical ORA-00600 error does not
include descriptive text and might look like this, with various
arguments following the message in the Oracle alert log::
ORA-00600 [723][51202][1][51200][][]
Oracle
MOSC now provides Note 153788.1 to allow you to get the
description for an ORA-600 error. In this web form, we can enter
the 723 argument for the ORA-600 error:

You can
type-in the numeric argument for the ORA-600 message and get the a
MOSC note relating to the error:

Or you
can type-in the the call stack trace from the trace file that was
generated from the ORA-600 trace file.
Remember, all ORA-600 errors in the alert log should be reported to
Oracle Technical Support, and most Oracle DBAs open an iTAR.