TNS-12537,TNS-12560,TNS-00507 Linux Error: 29: Illegal seek解決

下午有個測試環境測試人員反饋oracle監聽起不來，一啓動就報錯，還生成了core文件。以下：

[oracle@localhost ~]$ lsnrctl start

LSNRCTL for Linux: Version 11.2.0.1.0 - Production on 03-SEP-2018 17:15:37

Copyright (c) 1991, 2009, Oracle.  All rights reserved.

Starting /home/oracle/product/11.2.0/bin/tnslsnr: please wait...

TNS-12537: TNS:connection closed
 TNS-12560: TNS:protocol adapter error
  TNS-00507: Connection closed
   Linux Error: 29: Illegal seek

經查，有下列解決方法：

從新連接oracle以下：

[oracle:test]/bin$ cd /test/oracle/11.2.0.4/bin
[oracle:test]/bin$ ./relink all

未解決。http://tazdba.blogspot.com/2015/07/tns-12537tns-12560tns-00507-solaris.html

/etc/hosts中沒有127.0.0.1 hostname條目，增長後，仍然未解決。這一點不少帖子都提到。

sqlnet.ora中添加tcp.validnode_checking=no，仍未解決。http://www.dba-oracle.com/t_linux_error_29_illegal_seek.htm（順便說下，這個諮詢公司最爛了，很早的時候以爲不錯，後面以爲太垃圾了，除了抄官方文檔，95%的ctrl+c/ctrl+p）。

也有說起將設置LD_BIND_NOW=1，仍未解決。https://stackoverflow.com/questions/15807077/set-ld-bind-now-variable-to-solve-tns-linux-error-29-illegal-seek-error

將listener.ora中的localhost更改成ip或者127.0.0.1，問題解決。可是alert.log中出現一個新的錯誤：

Mon Sep 03 18:48:56 2018
Exception [type: SIGSEGV, Address not mapped to object] [ADDR:0x0] [PC:0x2F32692, nttaddr2bnd()+2158] [flags: 0x0, count: 1]
DDE: Problem Key 'ORA 7445 [nttaddr2bnd()+2158]' was completely flood controlled (0x6)
Further messages for this problem key will be suppressed for up to 10 minutes
Mon Sep 03 18:49:28 2018
WARNING: Oracle executable binary mismatch detected.
Binary of new process does not match binary which started instance
issue alter system set "_disable_image_check" = true to disable these messages --這是由於從新連接oracle可執行程序的緣由

更改主機名爲test-xxx

sqlplus "/as sysdba"

shutdown abort

startup

最後一個錯誤參考http://blog.itpub.net/18904345/viewspace-1317678/解決。