Impact of host name modification on Oracle startup and shutdown on Linux

+++ 10gR2
If the host name is modified and the corresponding information of/etc/hosts is not changed, an error will be reported during database shutdown and startup.
 
[Oracle @ oracle ~] $ Sqlplus/as sysdba
 
SQL * Plus: Release 10.2.0.1.0-Production on Sun Apr 6 19:19:30 2014
Copyright (c) 1982,200 5, Oracle. All rights reserved.
Connected.
SQL>
SQL>
SQL> shut immediate
The ORA-24324: service handle not initialized.
ORA-24323: value not allowed
ORA-00600: internal error code, arguments: [% s], [% s], [% s], [% s], [% s], [% s], [% s]
 
SQL> shut abort
ORA-01031: insufficient privileges
 
[Oracle @ oracle ~] $ Sqlplus/as sysdba
SQL * Plus: Release 10.2.0.1.0-Production on Sun Apr 6 19:20:55 2014
Copyright (c) 1982,200 5, Oracle. All rights reserved.
Connected to an idle instance.
 
SQL> startup
ORA-00600: internal error code, arguments: [keltnfy-ldmInit], [46], [1], [], [], [], [], [], []
SQL>
 

+++ 11gR2
If the host name is modified and the corresponding information of/etc/hosts is not changed, the database can be shut down normally, but an error will be reported during startup.
[Oracle @ oracle ~] $ Sqlplus/as sysdba
 
SQL * Plus: Release 11.2.0.1.0 Production on Sun Apr 6 11:27:27 2014
Copyright (c) 1982,200 9, Oracle. All rights reserved.
Connected:
Oracle Database 11g Enterprise Edition Release 11.2.0.1.0-64bit Production
With the Partitioning, OLAP, Data Mining and Real Application Testing options
 
SQL> shut immediate
Database closed.
Database dismounted.
ORACLE instance shut down.
 
SQL> startup
ORA-00119: invalid specification for system parameter LOCAL_LISTENER
ORA-00130: invalid listener address '(ADDRESS = (PROTOCOL = TCP) (HOST = oracle) (PORT = 1521 ))'
SQL> exit
 
++ 12c
If the host name is modified and the corresponding information of/etc/hosts is not changed, the database cannot be shut down normally, but can be shut down using abort. An error will be reported during startup.
[Oracle @ oracle ~] $ Sqlplus/as sysdba
 
SQL * Plus: Release 12.1.0.1.0 Production on Sun Apr 6 11:34:38 2014
Copyright (c) 1982,201 3, Oracle. All rights reserved.
Connected.
SQL> shut immediate
ORA-00000: normal, successful completion
SQL> shut immediate
ORA-00000: normal, successful completion
SQL> shut abort
ORACLE instance shut down.
SQL>
SQL> startup
ORA-00119: invalid specification for system parameter LOCAL_LISTENER
 
ORA-00130: invalid listener address '(ADDRESS = (PROTOCOL = TCP) (HOST = oracle) (PORT = 1521 ))'