ORA-00600[kclwcrs_20] in a RAC Active Data Guard (ADG) System (Doc ID 2255140.1)

Last updated on MAY 11, 2017

Applies to:

Oracle Database - Enterprise Edition - Version 11.2.0.4 to 12.1.0.2 [Release 11.2 to 12.1]
Information in this document applies to any platform.

Symptoms

A RAC system encountered  with ORA-00700 on instance 1 and we see assert ORA-00600 kclwcrs_20 in other instances by the same time:

alert_TXN_1.log
===============
Wed Feb 01 03:19:34 2017
Errors in file /x/home/oracle/diag/rdbms/txn_slc_live1/TXN_1/trace/TXN_1_lmse_23338.trc (incident=2160230):
ORA-00700: soft internal error, arguments: [kclgeneratecr:clschk_kcbgtcr_12], [34224], [4294967295], [0], [0], [0], [], [], [], [], [], []
Incident details in: /x/home/oracle/diag/rdbms/txn_slc_live1/TXN_1/incident/incdir_2160230/TXN_1_lmse_23338_i2160230.trc
Wed Feb 01 03:19:38 2017
Dumping diagnostic data in directory=[cdmp_20170201031938], requested by (instance=1, osid=23338 (LMSE)), summary=[incident=2160230].
Errors in file /x/home/oracle/diag/rdbms/txn_slc_live1/TXN_1/trace/TXN_1_lmse_23338.trc (incident=2160231):
ORA-00700: soft internal error, arguments: [kclgeneratecr:clschk_kcbgtcr_12], [34224], [4294967295], [0], [0], [0], [], [], [], [], [], []
Incident details in: /x/home/oracle/diag/rdbms/txn_slc_live1/TXN_1/incident/incdir_2160231/TXN_1_lmse_23338_i2160231.trc

alert_TXN_2.log
===============
Wed Feb 01 03:19:39 2017
Errors in file /x/home/oracle/diag/rdbms/txn_slc_live1/TXN_2/trace/TXN_2_ora_33602.trc (incident=1227634):
ORA-00600: internal error code, arguments: [kclwcrs_20], [], [], [], [], [], [], [], [], [], [], []
Incident details in: /x/home/oracle/diag/rdbms/txn_slc_live1/TXN_2/incident/incdir_1227634/TXN_2_ora_33602_i1227634.trc

alert_TXN_3.log
*******************
Wed Feb 01 03:19:44 2017
Errors in file /x/home/oracle/diag/rdbms/txn_slc_live1/TXN_3/trace/TXN_3_ora_48035.trc (incident=731798):
ORA-00600: internal error code, arguments: [kclwcrs_20], [], [], [], [], [], [], [], [], [], [], []
Incident details in: /x/home/oracle/diag/rdbms/txn_slc_live1/TXN_3/incident/incdir_731798/TXN_3_ora_48035_i731798.trc

alert_TXN_4.log
**************
Wed Feb 01 03:19:55 2017
Errors in file /x/home/oracle/diag/rdbms/txn_slc_live1/TXN_4/trace/TXN_4_ora_57490.trc (incident=721761):
ORA-00600: internal error code, arguments: [kclwcrs_20], [], [], [], [], [], [], [], [], [], [], []
Incident details in: /x/home/oracle/diag/rdbms/txn_slc_live1/TXN_4/incident/incdir_721761/TXN_4_ora_57490_i721761.trc

 

Cause

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