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Re: Self-correcting Oracle Error

From: Mark Richard <mrichard_at_transurban.com.au>
Date: Wed, 19 Feb 2003 16:01:25 -0800
Message-ID: <F001.005524FE.20030219160125@fatcity.com>


Ian,

I'm not sure if this is appropriate or not but working in Oracle 8.1.5 (and I think it followed us to 8.1.6 and maybe even 8.1.7) we could generate ora-600 errors relating to partitioned tables which had bitmap indexes on them. It seemed to be related to removing all instances of a bitmap indexed value (or something similar). Large delete's used to create the problem.

Attempting to analyze the table also created the error. However analyzing just the table (ie: for data clause) and then analyzing the indexes in a subsequent statement (ie: for all indexes) would resolve the problem until the next time a large delete was performed.

Perhaps this is a similar scenario to what you have encountered. If it appears again try the analyze statements.

Regards,

     Mark.

                                                                                                                   
                    "MacGregor,                                                                                    
                    Ian A."              To:     Multiple recipients of list ORACLE-L <ORACLE-L_at_fatcity.com>       
                    <ian_at_SLAC.Stan       cc:                                                                       
                    ford.EDU>            Subject:     Self-correcting  Oracle  Error                               
                    Sent by:                                                                                       
                    root_at_fatcity.c                                                                                 
                    om                                                                                             
                                                                                                                   
                                                                                                                   
                    20/02/2003                                                                                     
                    10:06                                                                                          
                    Please respond                                                                                 
                    to ORACLE-L                                                                                    
                                                                                                                   
                                                                                                                   




A developer called to report the Ora-600 error

Errors in file /opt/oracle/admin/NLCO/udump/nlco_ora_16455.trc: ORA-00600: internal error code, arguments: [kcbgtcr_4], [266008], [1024],
[1], [], [], [], []

When issuing select count(*) against a partition table. He then tried renaming the table which also produced the same error.

The alert_log shows

Wed Feb 19 09:34:23 2003
Errors in file /opt/oracle/admin/NLCO/udump/nlco_ora_18469.trc: ORA-00600: internal error code, arguments: [ktehwugen1], [246907],
[266008], [], [], [], [], []

Wed Feb 19 09:35:01 2003
Errors in file /opt/oracle/admin/NLCO/udump/nlco_ora_18469.trc: ORA-00600: internal error code, arguments: [klapush_10], [201], [], [], [],
[], [], []

Wed Feb 19 09:35:06 2003
Errors in file /opt/oracle/admin/NLCO/udump/nlco_ora_18469.trc: ORA-00600: internal error code, arguments: [26084], [], [], [], [], [], [],
[]

ORA-00600: internal error code, arguments: [klapush_10], [201], [], [], [],
[], [], []

Wed Feb 19 09:35:54 2003
Errors in file /opt/oracle/admin/NLCO/udump/nlco_ora_16274.trc: ORA-00600: internal error code, arguments: [kcbgtcr_4], [266008], [1024],
[1], [], [], [], []

Wed Feb 19 09:40:39 2003
Errors in file /opt/oracle/admin/NLCO/udump/nlco_ora_16455.trc: ORA-00600: internal error code, arguments: [kcbgtcr_4], [266008], [1024],
[1], [], [], [], []

Wed Feb 19 09:45:36 2003
Errors in file /opt/oracle/admin/NLCO/udump/nlco_ora_16580.trc: ORA-00600: internal error code, arguments: [kcbgtcr_4], [266008], [1024],
[1], [], [], [], []

The kcbgtr_4 error keeps repeating

It seemed that any attempt to access the table or a partition of the table produced the kcbgtr_4 error. DBV was run and the files reported no corruption. I did this for both the table's table space and the system tablespace. The table's structure was verified. I saw something on metalink where a kcbgtcr_4 error had to do with bitmap tablespaces and trying to read dba_segments while a segment was being dropped. Although a completely different problem I decided to run dbms_space_admin to first verify the tablespace and then the segment. After running it against the tablespace, I tried
Another "select count(*) from the table." It returned the proper answer. The error went away without my taking any corrective measures.

On the other errors the klapush_10 is probably relating to having more than one process doing direct path inserts. Oracle was supposed to have fixed this problem but it rears its head intermittently and unfortunately fairly often. I have no idea what a ktehwugen1 error is.

Has anyone else seen anything similar?

Ian MacGregor

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Author: MacGregor, Ian A.
  INET: ian_at_SLAC.Stanford.EDU

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Author: Mark Richard
  INET: mrichard_at_transurban.com.au

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Received on Wed Feb 19 2003 - 18:01:25 CST

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