最近公司上了一個案子，在做Standby 的時間發現bdump報如下錯誤，經過多次驗證確定是/etc/hosts hostname 和 IP地址不一致導致 ，修改為正確的，重新啟動一下DB，以下報錯就沒有再出現。

做個記錄，防止自己忘記

Wed Oct 05 20:00:43 CST 2011
found dead dispatcher 'D000', pid = (18, 45)
Wed Oct 05 20:00:43 CST 2011
dispatcher 'D000' encountered error getting listening address
Wed Oct 05 20:00:43 CST 2011
Errors in file /u01/app/oracle/admin/sfisdb/bdump/sfisdb_ora_3257.trc:
ORA-07445: exception encountered: core dump [kslgetl()+120] [SIGSEGV] [Address not mapped to object] [0x000000210] [] []
ORA-00108: failed to set up dispatcher to accept connection asynchronously
Wed Oct 05 20:00:46 CST 2011
found dead dispatcher 'D000', pid = (18, 46)
Wed Oct 05 20:00:47 CST 2011
dispatcher 'D000' encountered error getting listening address