ORA-7445(kssdct)和ORA-7445(kssdch)错误

Oracle 10.2.0.5数据库出现这两个ORA-7445错误后,导致实例CRASH。
很严重的问题,这个错误会直接导致实例的CRASH,而作为Oracle的10.2的最终版出现这个的错误不太应该。
错误信息为:

Mon Oct 31 12:13:21 CST 2011
Errors IN file /u01/oracle/admin/orcl/udump/orcl_ora_23475.trc:
ORA-07445: exception encountered: core dump [kssdct()+94] [SIGSEGV] [Address NOT mapped TO object] [0x000026D1B] [] []
Mon Oct 31 12:13:24 CST 2011
Errors IN file /u01/oracle/admin/orcl/bdump/orcl_pmon_29355.trc:
ORA-07445: exception encountered: core dump [kssdch()+2188] [SIGSEGV] [Address NOT mapped TO object] [0x000026D2B] [] []
Mon Oct 31 12:13:26 CST 2011
Errors IN file /u01/oracle/admin/orcl/bdump/orcl_pmon_29355.trc:
ORA-00602: internal programming exception
ORA-07445: exception encountered: core dump [kssdch()+2188] [SIGSEGV] [Address NOT mapped TO object] [0x000026D2B] [] []
Mon Oct 31 12:13:26 CST 2011
PMON: terminating instance due TO error 602
Instance TERMINATED BY PMON, pid = 29355

可以看到出现了两个ORA-7445错误后,直接导致了ORA-602的错误,随后PMON进程终结了数据库实例。
这个错误的详细描述为:ORA-7445 [kssdct()] Followed BY ORA-602, ORA-7445 [kssdch()] From PMON Crashing The Instance [ID 1281101.1],Oracle的PMON进程在尝试清理一个SQL*NET连接的中断会话时,导致实例崩溃。导致这个问题的原因是修正Bug:6887866引入了错误,改问题对应的内部Bug:9184754。
解决问题的方法是升级或打补丁,将数据库升级到10.2.0.5.4或11.2.0.2可以解决该问题,或者直接应用PATCH 9184754。

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