Database will not Mount: ORA-15064 - ORA-600[ORA_NPI_ERROR],[600],[ORA-600[kfnsInstanceReg00] - ORA-600[OSDEP_INTERNAL] (Doc ID 1455882.1)

Last updated on FEBRUARY 07, 2014

Applies to:

Oracle Database - Enterprise Edition - Version 11.2.0.3 and later
Information in this document applies to any platform.
***Checked for relevance on 18-Oct-2013***

Symptoms

 Database which stores its data in ASM will not mount and throw the following errors:

-----------------------------------------------------------------------------------------------------------------------------------------------------------------------
Thu Apr 19 13:59:31 2012
Errors in file /eas/u01/app/oracle/product/diag/rdbms/easp1/easp1/trace/easp1_asmb_24508.trc:
ORA-15064: communication failure with ASM instance
ORA-00600: internal error code, arguments: [ORA_NPI_ERROR], [600], [ORA-00600: internal error code, arguments: [kfnsInstanceReg00],
[easp1:easp1], [30000], [], [], [], [], [], [], [], [], []], [], [], [], [], [], [], [], [], []
...
Errors in file /eas/u01/app/oracle/product/diag/rdbms/easp1/easp1/trace/easp1_asmb_24617.trc  (incident=254557):
ORA-00600: internal error code, arguments: [OSDEP_INTERNAL], [], [], [], [], [], [], [], [], [], [], []
ORA-27302: failure occurred at: skfnbeqOpenI
Incident details in: /eas/u01/app/oracle/product/diag/rdbms/easp1/easp1/incident/incdir_254557/easp1_asmb_24617_i254557.trc
...
ORA-15083: failed to communicate with ASMB background process
ORA-00210: cannot open the specified control file
ORA-00202: control file: '+DATA/easp1/control01.ctl'
ORA-17503: ksfdopn:2 Failed to open file +DATA/easp1/control01.ctl
ORA-15001: diskgroup "DATA" does not exist or is not mounted
ORA-15055: unable to connect to ASM instance
...
---------------------------------------------------------------------------------------------------------------------------------------------------------------------

These errors occur at the time the database attempts to mount, thus access the ASM instance for the database files.

Seems the database processes cannot connect to the started ASM instance (which has all required ASM disk groups mounted)

Changes

Cause

Sign In with your My Oracle Support account

Don't have a My Oracle Support account? Click to get started

My Oracle Support provides customers with access to over a
Million Knowledge Articles and hundreds of Community platforms