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SYSDBA Connections Fail With ORA-12547 Error (Doc ID 782276.1)

Last updated on JANUARY 02, 2019

Applies to:

Oracle Database - Enterprise Edition - Version 11.1.0.6 to 11.2.0.3 [Release 11.1 to 11.2]
IBM AIX on POWER Systems (64-bit)
IBM AIX Based Systems (64-bit)
***Checked for relevance on 06-Jun-2016***

Symptoms

When attempting to connect to the database as SYSDBA the following error occurs:
sqlplus / as sysdba

ERROR
ORA-12547: TNS: lost contact

truss of sqlplus connection shows a trace file being generated in $ORACLE_HOME/rdbms/log directory instead of the BDUMP location.


Excerpt from truss output:

569536: statx("/opt/oracle/oracle/product/11.1.0/rdbms/log/mdsp_ora_569536.trc", 0x0FFFFFFFFFFF7DF0, 176, 01) = 0
569536: statx("/opt/oracle/oracle/product/11.1.0/rdbms/log/mdsp_ora_569536.trc", 0x0FFFFFFFFFFF7DF0, 176, 0) = 0
569536: open("/opt/oracle/oracle/product/11.1.0/rdbms/log/mdsp_ora_569536.trc", O_WRONLY|O_APPEND|O_LARGEFILE) = 3
569536: kwrite(3, " D u m p f i l e ", 10) = 10
569536: kwrite(3, " / o p t / o r a c l e /".., 63) = 63
569536: kwrite(3, "\n", 1) = 1
569536: kwrite(3, "\n * * * 2 0 0 9 - 0 2".., 29) = 29
569536: kwrite(3, " O r a c l e D a t a b".., 200) = 200


Trace file shows:

EXTSHM should not be set to ON in the environment EXTSHM should not be set to ON in the environment
----- Error Stack Dump -----
ORA-00600: internal error code, arguments: [SKGMINVALID], [5], [0], [44], [0], [], [], []
----- SQL Statement (None) -----
Current SQL information unavailable - no SGA.

Cause

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In this Document
Symptoms
Cause
Solution

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