ORA-07445: exception encountered: core dump [qsmmixGetIdxKeyStats()+231] [SIGSEGV] [ADDR:0x8] [PC:0x58AE44F] [Address not mapped to object] []

oracle:11.2.0.4

通过dblink访问12c数据库的一张大表报错：

ORA-03150: end-of-file on communication channel for database link
ORA-02055: distributed update operation failed; rollback required
ORA-02063: preceding lines from <REMOTE DATABASE LINK>

同时，alert日志报错：

ORA-07445: exception encountered: core dump [qsmmixGetIdxKeyStats()+231] [SIGSEGV] [ADDR:0x8] [PC:0x58AE44F] [Address not mapped to object] []

 

经过查MOS，这是一个已知的BUG（18093317），说是数据库版本不同引起的。

 

通过应用补丁解决：

Patch 31103343: DATABASE PATCH SET UPDATE 11.2.0.4.200714