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The instance startup may fail with ORA-07445: [clsssterm()+183] [SIGSEGV] (Doc ID 1937915.1)

Last updated on AUGUST 18, 2020

Applies to:

Oracle Database - Enterprise Edition - Version to [Release 11.2]
Oracle Database Cloud Schema Service - Version N/A and later
Oracle Database Exadata Cloud Machine - Version N/A and later
Oracle Database Exadata Express Cloud Service - Version N/A and later
Oracle Cloud Infrastructure - Database Service - Version N/A and later
Information in this document applies to any platform.


Instance startup using SRVCTL or SQLPLUS may fail with the below error.

srvctl start database -d <DBNAME>
PRCR-1079 : Failed to start resource ora.<DBNAME>.db
CRS-5017: The resource action "ora.<DBNAME>.db start" encountered the
following error:
ORA-03113: end-of-file on communication channel
Process ID: 0
Session ID: 0 Serial number: 0

For details refer to "(:CLSN00107:)" in "<GI_HOME>/log/<hostname>/agent/crsd/oraagent_orcldb/oraagent_orcldb.log".

 And the alert log file indicate that the foreground process which was trying to start the instance signaled a ORA-07445 error.

[[ alert log file ]]

Exception [type: SIGSEGV, Address not mapped to object] [ADDR:0x7FE1811E0520][PC:0x7FE17FEA1F9F, clsssterm()+183] [flags: 0x0, count: 1]
Errors in file <ORACLE_BASE>/diag/rdbms/<DBNAME>/<SID>/trace/<SID>_ora_115405.trc (incident=14431):
ORA-07445: exception encountered: core dump [clsssterm()+183] [SIGSEGV] [ADDR:0x7FE1811E0520] [PC:0x7FE17FEA1F9F] [Address not mapped to object] []
Incident details in: <ORACLE_BASE>/diag/rdbms/<DBNAME>/<SID>/incident/incdir_14431/<sid>_ora_115405_i14431.trc

The error was raised during the NLS initialization.

[[ trace file ]]

2014-10-17 20:36:53.959: [ default]failed to initialize skgp context
2014-10-17 20:36:53.959: [ default]slos op  :  sslssreghdlr
2014-10-17 20:36:53.959: [ default]slos dep :  Error 0 (0)
2014-10-17 20:36:53.959: [ default]slos loc :  sskgpinit1
2014-10-17 20:36:53.959: [ default]slos info:

[   CLWAL]clsw_Initialize: OLR initlevel [30000]
[ default]proa_init: Failed in NLS/LMS initialization. Retval [25]
[ default]u_set_ocr_error: Parameter was NULL
[ default]a_get_last_error: Err ctx null
[   CLWAL]clsw_Initialize: Error [25] from procr_init_ext
[   CLWAL]clsw_Initialize: Error [] from procr_init_ext
2014-10-17 20:36:53.960: [GPNP] clsgpnpkww_initclswcx: [atclsgpnpkww.c:349] Result: (56) CLSGPNP_OCR_INIT. Failed to init CLSW-OLR context. CLSW Error (3): CLSW-3: Error in the cluster registry (OCR) layer. [25] []

[[ Function call stack: ]]

_sighandler <- clsssterm <- kgxgncdel <- kggpnpDestroy <- ksxp_ifquery <- ksxpnfy <- kscnfy <- ksmcsg <- opistr_real <- opistr



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