ORA-00600: Internal Error Code, Arguments: 
Last updated on OCTOBER 25, 2017
Applies to:Oracle Database - Enterprise Edition - Version 188.8.131.52 and later
Information in this document applies to any platform.
On 184.108.40.206 version, when attempting to perform the following PL/SQL while authenticating a user with OpenLDAP:
BEGIN ztclogin.checkLDAP(:1,:2,:3) ; END;
the following error occurs:
ORA-00600: internal error code, arguments: , , , , , , , , , , , 
The customer was using OpenLDAP, the error does not occur when using OID.
Also, when using IP address of the LDAP host instead of its DNS name in the application, the error does not occur and the response is faster.
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