grid軟體安裝目錄許可權被修改引起登陸ASM出現ORA-12547 TNSlost contact

測試環境，安裝EM12C AGENT後，登陸ASM時發現問題：
1.故障現象
[grid@AAAA grid]$ sqlplus / as sysasm
SQL*Plus: Release 11.2.0.4.0 Production on Wed May 11 14:54:39 2016
Copyright (c) 1982, 2013, Oracle.  All rights reserved.
ERROR:
ORA-12547: TNS:lost contact
[root@AAAA ~]# crsctl stat res -t
--------------------------------------------------------------------------------
NAME           TARGET  STATE        SERVER                   STATE_DETAILS       
--------------------------------------------------------------------------------
Local Resources
--------------------------------------------------------------------------------
ora.ARCH.dg
               ONLINE  OFFLINE      AAAA                                         
ora.DATA.dg
               ONLINE  OFFLINE      AAAA                                         
ora.FRA.dg
               ONLINE  OFFLINE      AAAA                                         
ora.LISTENER.lsnr
               ONLINE  OFFLINE      AAAA                     STARTING            
ora.asm
               ONLINE  OFFLINE      AAAA                                         
ora.ons
               OFFLINE OFFLINE      AAAA                                         
--------------------------------------------------------------------------------
Cluster Resources
--------------------------------------------------------------------------------
ora.cssd
      1        ONLINE  OFFLINE                                                   
ora.AAAA.db
      1        ONLINE  OFFLINE                                                   
ora.diskmon
      1        OFFLINE OFFLINE                                                   
ora.evmd
      1        ONLINE  ONLINE       AAAA  

----------------------------------
2.排查過程
登陸ASM報錯，首先排查ASM的日誌：
Fri Apr 15 22:01:04 2016
NOTE: Advanced to new COD format for group ARCH
Wed May 11 14:11:51 2016
Errors in file /u01/app/grid/diag/asm/+asm/+ASM/trace/+ASM_ora_8967.trc  (incident=5761):
ORA-00600: internal error code, arguments: [spstp: ORACLE_HOME uid does not match euid], [500], [507], [], [], [], [], [], [], [], [], []
Incident details in: /u01/app/grid/diag/asm/+asm/+ASM/incident/incdir_5761/+ASM_ora_8967_i5761.trc
----ORACLE_HOME的UID不相符，從下面檢查使用者許可權可以看到是將UID 507、500物件的是GRID/ORACLE使用者。
[grid@AAAA grid]$ id grid
uid=507(grid) gid=501(oinstall) groups=501(oinstall),502(dba),504(asmadmin),505(asmdba),506(asmoper)
[grid@AAAA grid]$ id oracle
uid=500(oracle) gid=501(oinstall) groups=501(oinstall),502(dba),503(oper),504(asmadmin),505(asmdba)

如下驗證可以發現GRID使用者的安裝許可權都被誤操作修改為OWNER為oracle。
[grid@AAAA +ASM]$ cd /u01/app/
[grid@AAAA app]$ ls -al
total 28
drwxrwxr-x.  7 oracle oinstall 4096 May 11 13:58 .
drwxrwxr-x.  3 oracle oinstall 4096 Apr 12 11:41 ..
drwxrwxr-x. 67 oracle oinstall 4096 Apr 15 11:49 11.2.0
drwxr-xr-x.  6 oracle oinstall 4096 May 11 14:03 agent12c
drwxrwxr-x.  9 oracle oinstall 4096 Apr 15 12:39 grid
drwxrwxr-x.  7 oracle oinstall 4096 Apr 15 13:38 oracle
drwxrwx---.  6 oracle oinstall 4096 May 11 14:24 oraInventory

臨時解決方法：是重新使用命令:chown -R /u01/app/11.2.0 等方式修改目錄許可權後恢復正常，不過GRID軟體中有一些檔案的許可權是root，此時暫時不管了。

--從執行穩定角度來看，建議是重新安裝了。

擴充套件一下：
ORA-12547: TNS:lost contact在RAC中常見的還有oracle程式的許可權不對，
ORA-12547 Errors
The error ORA-12547 indicates that the communication channel has been broken. It's most often thrown because the other end of the process went away unexpectedly.

Note 1307075.1 Oracle Database Fails to Start with Error ORA-12547
Note 381566.1 connect / as sysdba Fails with Ora-12547 And Tns-12514
Note 744512.1 Ora-12547: Tns:Lost Contact Creating Database After Clean Installation