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

Last updated on NOVEMBER 28, 2016

Applies to:

Oracle Database - Enterprise Edition - Version 10.2.0.3 to 10.2.0.5.0 [Release 10.2]
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],[GL_POSTING_INTERIM_21597], [], []


The trace file shows the failing statement:
GRANT ALL ON "GL_POSTING_INTERIM_21597" 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 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 recyclebin, we can confirm that the object was dropped and the time of the drop (in this caseGL_POSTING_INTERIM_21597)

SQL> SELECT ORIGINAL_NAME,OPERATION,TYPE,DROPTIME
FROM DBA_RECYCLEBIN 
WHERE ORIGINAL_NAME = 'GL_POSTING_INTERIM_21597';

ORIGINAL_NAME             OPERATION  TYPE   DROPTIME 
-------------             ---------- ------ ----------
GL_POSTING_INTERIM_21597  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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