Last updated on NOVEMBER 03, 2015
Applies to:
Oracle Server - Standard Edition - Version: 10.2.0.1 to 11.1.0.7 - Release: 10.2 to 11.1Information in this document applies to any platform.
Symptoms
Kerberos authentication based on the ticket obtained automatically when logging to the domain is failing with the following errors:d:\oracle\product\10.2.0\db_1\NETWORK\ADMIN>sqlplus /@d1v10204
SQL*Plus: Release 10.2.0.4.0 - Production on Fri Feb 5 07:31:48 2010
Copyright (c) 1982, 2007, Oracle. All Rights Reserved.
ERROR:
ORA-12637: Packet receive failed
The ticket looks OK:
d:\oracle\product\10.2.0\db_1\NETWORK\ADMIN>oklist
Kerberos Utilities for 32-bit Windows: Version 10.2.0.4.0 - Production on 05-FEB-2010 07:31:39
Copyright (c) 1996, 2007 Oracle. All rights reserved.
Ticket cache: win2kcc
Default principal: test_test@ADTEST.RO.ORACLE.COM
Valid Starting Expires Principal
05-Feb-2010 07:05:49 05-Feb-2010 17:05:49 krbtgt/ADTEST.RO.ORACLE.COM@ADTEST.RO.ORACLE.COM renew until 12-Feb-2010 07:05:49
05-Feb-2010 07:06:00 05-Feb-2010 17:05:49 oracle/lap2.adtest.ro.oracle.com@ADTEST.RO.ORACLE.COM renew until 12-Feb-2010 07:05:49
d:\oracle\product\10.2.0\db_1\NETWORK\ADMIN>echo %date% %time%
Fri 02/05/2010 7:37:57.03This is how sqlnet.ora is configured:
NAMES.DIRECTORY_PATH= (TNSNAMES)
SQLNET.KERBEROS5_CONF = c:\krb5\krb5.conf
SQLNET.KERBEROS5_CONF_MIT=true
SQLNET.AUTHENTICATION_KERBEROS5_SERVICE = oracle
SQLNET.AUTHENTICATION_SERVICES= (KERBEROS5)
SQLNET.KERBEROS5_KEYTAB = c:\krb5\v5srvtab
SQLNET.KERBEROS5_CC_NAME = OSMSFT://At the same moment with the ORA-12637 error an ORA-7445 is logged in the alert.log:
ORA-07445: exception encountered: core dump [ACCESS_VIOLATION] [unable_to_trans_pc] [PC:0x6096891A] [ADDR:0x30] [UNABLE_TO_READ] []
Current SQL information unavailable - no session.
Current SQL information unavailable - no session.
Functions in the Call Stack Trace for this issue include:
kpkiadef <- xupiini <- xupiah0 <- upiah0 <- kpuatch
Cause
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