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ORA-600[16500], [kqdobu], [U] (Doc ID 787611.1)

Last updated on FEBRUARY 26, 2019

Applies to:

Oracle Database - Enterprise Edition - Version 10.2.0.3 to 10.2.0.5.0 [Release 10.2]
Oracle Database Cloud Schema Service - Version N/A and later
Oracle Database Exadata Express Cloud Service - Version N/A and later
Oracle Database Exadata Cloud Machine - Version N/A and later
Oracle Cloud Infrastructure - Database Service - Version N/A and later
Information in this document applies to any platform.
***Checked for relevance on 06-Jan-2014***

Symptoms

While issuing a grant statement, an ORA-600 error was generated.

*** 2009-03-03 09:22:24.434
ksedmp: internal or fatal error 
ORA-00600: internal error code, arguments: [16500], [kqdobu], [U], [0], [40],[<OBJECT NAME>], [], []


The trace file shows the failing statement:
GRANT ALL ON "<OBJECT NAME>" TO APPS WITH GRANT OPTION

Please note that the object name is unique to this case, and yours may be different (ORA-00600: [16500], [kqdobu], [U], [0], [xx],[<object name>], [], []) .

The function stack may look like the following:

kqdobu <- kqrcmt <- ktcrcm <- ktdcmt <- k2lcom <- k2send <- xctctl <- xctcom_with_options <- opiexe <- opiosq0 <- opiall0

or

kqdobu <- kqrcmt <- kdicwpre <- kdicrws <- kdicdrv <- opiexe <- opiosq0 <- opiosq <- opiodr <- rpidrus <- skgmstack <- rpidru

 

The main functions of concern are: kqdobu <- kqrcmt which mean that we are trying to update internal tables.


Looking through the trace file for the object name, you may notice other cursors that indicate that the object was dropped.

Checking the recycle bin, we can confirm that the object was dropped and the time of the drop (in this case <OBJECT NAME>)

SQL> SELECT ORIGINAL_NAME,OPERATION,TYPE,DROPTIME
FROM DBA_RECYCLEBIN 
WHERE ORIGINAL_NAME = '<OBJECT NAME>';

ORIGINAL_NAME             OPERATION  TYPE   DROPTIME 
-------------             ---------- ------ ----------
<OBJECT NAME>  DROP       TABLE  2009-03-03:09:22:24  
 

If you match up the timestamp of the DROP, it will be the same as the timestamp on the failed GRANT statement.

Cause

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In this Document
Symptoms
Cause
Solution
References


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