蓝屏代码分析

Microsoft (R) Windows Debugger  Version 6.7.0005.0
Copyright (c) Microsoft Corporation. All rights reserved.


Loading Dump File [C:\Windows\Minidump\110210-18532-01.dmp]
Mini Kernel Dump File: Only registers and stack trace are available

Symbol search path is: C:\MyCodesSymbols; SRVC:\MyLocalSymbols*http://msdl.
Executable search path is:
Unable to load image \SystemRoot\system32\ntoskrnl.exe, Win32 error 0n2
*** WARNING: Unable to verify timestamp for ntoskrnl.exe
*** ERROR: Module load completed but symbols could not be loaded for ntoskrnl.exe
Windows Vista Kernel Version 7600 MP (8 procs) Free x64
Product: WinNt, suite: TerminalServer SingleUserTS
Built by: 7600.16617.amd64fre.win7_gdr.100618-1621
Kernel base = 0xfffff800`0464c000 PsLoadedModuleList = 0xfffff800`04889e50
Debug session time: Tue Nov  2 15:48:46.923 2010 (GMT+8)
System Uptime: 0 days 1:23:59.047
Map \SystemRoot\system32\ntoskrnl.exe:
  Image region 600:19b800 does not fit in mapping
*** WARNING: Unable to verify timestamp for ntoskrnl.exe
*** ERROR: Module load completed but symbols could not be loaded for ntoskrnl.exe
Loading Kernel Symbols
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这是我的蓝屏代码
时不时蓝屏，问下什么原因啊