公司数据库突然宕机，检查alert日志：
Tue Mar 01 12:12:32 2011
WARNING: inbound connection timed out (ORA-3136)
Tue Mar 01 13:24:05 2011
Thread 1 advanced to log sequence 24954
Current log# 2 seq# 24954 mem# 0: D:\ORADATA\ORCL\REDO02.LOG
Tue Mar 01 14:50:30 2011
Thread 1 advanced to log sequence 24955
Current log# 3 seq# 24955 mem# 0: D:\ORADATA\ORCL\REDO03.LOG
Tue Mar 01 15:01:01 2011
Process startup failed, error stack:
Tue Mar 01 15:01:01 2011
Errors in file c:\oracle\product\10.2.0\admin\orcl\bdump\orcl_psp0_364.trc:
ORA-27300: OS system dependent operation:spcdr:9261:4200 failed with status: 997
ORA-27301: OS failure message: 重叠 I/O 操作在进行中。
ORA-27302: failure occurred at: skgpspawn
Tue Mar 01 15:01:02 2011
Process m001 died, see its trace file
Tue Mar 01 15:01:02 2011
ksvcreate: Process(m001) creation failed
oracle承认这是一个bug（10.2.0.2.0之前10g版本），BUG 5607984 - ORACLE DOES NOT CLOSE TCP CONNECTIONS. REMAINS IN CLOSE_WAIT STATE. [On Windows 32-bit].可打补丁patch number 5639232 ,该补丁有106M。
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