Windbg 分析Windows蓝屏原因的方法蓝屏是系统崩溃。
操作系统在遇到致命错误导致崩溃时,并不是直接挂掉,而是会记录下当时内存中的数据,将其存储成为dump文件,并用一串蓝屏代码向用户做出提示。
一、如何获取DUMP文件右键点击“我的电脑”,选“属性→高级→启动和故障恢复→设置”,打开“启动和故障恢复”选项卡,在“写入调试信息”下拉列表中选中“小内存转储(64KB)”选项,如图1。
选好后点确定,下次再出现蓝屏时,系统就会存储下dump文件,一般存放位置在系统盘的minidump文件夹下。
(建议在该文件夹上点右键——属性——发送到——桌面快捷方式,以后就能在桌面上找到该文件夹了)小知识:小内存转储内存转储是用于系统崩溃时,将内存中的数据转储保存在转储文件中,供给有关人员进行排错分析使用。
小内存转储,就是只保存内存前64KB的基本空间数据的内存转储文件。
这样可以节省磁盘空间,也方便文件的查看。
选好后点“确定”,这样操作系统在下次出现蓝屏时,就会记录下当时内存中的数据,并存储为dump文件,该文件存放在系统盘的minidump文件夹下。
小知识:Dump文件Dump文件是用来给驱动程序编写人员调试驱动程序用的,这种文件必须用专用工具软件打开,比如使用WinDbg打开。
第二步,下载安装windbg并安装/whdc/devtools/debugging/installx86.mspx第三步,使用windbg诊断蓝屏错误遇到计算机蓝屏后重启,在minidump文件夹下会出现一个以日期为文件名的文件,那就是我们要的了。
接下来打开windbg软件启动,File—>Open Crash Dump,如图:然后找到你的minidump文件夹,dump文件一般是"时间.dmp"打开后就会自动分析了。
分析完后,看最下面,找到probably caused by这一行,如图:那个360AntiArp.sys文件就是问题所在(举例,仅供参考),根据相关的文件名,在硬盘内查找和该文件相关的程序,排除该程序的影响后,确认是否还有蓝屏问题出现。
【注】导入dump文件分析完毕后,不要关闭,在命令行里面输入!analyze -v,这个命令可以查看dump文件的详细情况,对普通用户有用的还有下面一些信息:0:000>!analyze -v******************************************************************************** ** Exception Analysis ** *********************************************************************************** WARNING: Unable to verify checksum for testflash.exe*** ERROR: Module load completed but symbols could not be loaded for testflash.exe*** WARNING: Unable to verify checksum for flashgame.dll*** ERROR: Symbol file could not be found. Defaulted to export symbols for flashgame.dll - *** WARNING: Unable to verify checksum for yyyclient.dll*** ERROR: Symbol file could not be found. Defaulted to export symbols for yyyclient.dll - *** ERROR: Symbol file could not be found. Defaulted to export symbols for SKCHUI.DLL -*** ERROR: Module load completed but symbols could not be loaded for xpsp2res.dll*** ERROR: Symbol file could not be found. Defaulted to export symbols for MSOXMLMF.DLL - *** ERROR: Symbol file could not be found. Defaulted to export symbols for RTXOLAss.dll - *** WARNING: Unable to verify checksum for DS40xxSDK.dll*** ERROR: Symbol file could not be found. Defaulted to export symbols for DS40xxSDK.dll - *** WARNING: Unable to verify checksum for ClientPlayM4.dll*** ERROR: Symbol file could not be found. Defaulted to export symbols for ClientPlayM4.dll -*** ERROR: Symbol file could not be found. Defaulted to export symbols for rsaenh.dll -*** ERROR: Symbol file could not be found. Defaulted to export symbols for safemon.dll - *** ERROR: Module load completed but symbols could not be loaded for shdoclc.dll*** ERROR: Symbol file could not be found. Defaulted to export symbols for sysfer.dll -*** ERROR: Symbol file could not be found. Defaulted to export symbols for mswsock.dll - *** ERROR: Symbol file could not be found. Defaulted to export symbols for psapi.dll -*** ERROR: Symbol file could not be found. Defaulted to export symbols for user32.dll -**************************************************************************** ****** ****** Your debugger is not using the correct symbols ****** ****** In order for this command to work properly, your symbol path ****** must point to .pdb files that have full type information. ****** ****** Certain .pdb files (such as the public OS symbols) do not ****** contain the required information. Contact the group that ****** provided you with these symbols if you need this command to ****** work. ****** ****** Type referenced: IMAGE_NT_HEADERS32 ****** ****************************************************************************WARNING: lient overlaps testflashWARNING: lient overlaps flashgameWARNING: lient overlaps yyyclientWARNING: lient overlaps SKCHUIWARNING: lient overlaps xpsp2resWARNING: lient overlaps MSOXMLMFWARNING: lient overlaps RTXOLAssWARNING: lient overlaps Flash10WARNING: lient overlaps DS40xxSDKWARNING: lient overlaps ClientPlayM4WARNING: lient overlaps rsaenhWARNING: lient overlaps safemonWARNING: lient overlaps shdoclc*** WARNING: Unable to verify timestamp for lient.dll*** ERROR: Module load completed but symbols could not be loaded for lient.dll **************************************************************************** ****** ****** Your debugger is not using the correct symbols ****** ****** In order for this command to work properly, your symbol path ****** must point to .pdb files that have full type information. ****** ****** Certain .pdb files (such as the public OS symbols) do not ****** contain the required information. Contact the group that ****** provided you with these symbols if you need this command to ****** work. ****** ****** Type referenced: kernel32!pNlsUserInfo ****** ******************************************************************************************************************************************************** ****** ****** Your debugger is not using the correct symbols ****** ****** In order for this command to work properly, your symbol path ****** must point to .pdb files that have full type information. ****** ****** Certain .pdb files (such as the public OS symbols) do not ****** contain the required information. Contact the group that ****** provided you with these symbols if you need this command to ****** work. ****** ****** Type referenced: kernel32!pNlsUserInfo ****** ****************************************************************************FAULTING_IP:lient+528d8730528d914 8a08 mov cl,byte ptr [eax]EXCEPTION_RECORD: ffffffff -- (.exr 0xffffffffffffffff)ExceptionAddress: 0528d914 (lient+0x0528d873)ExceptionCode: c0000005 (Access violation)ExceptionFlags: 00000000NumberParameters: 2Parameter[0]: 00000000Parameter[1]: 07889000Attempt to read from address 07889000DEFAULT_BUCKET_ID: INVALID_POINTER_READPROCESS_NAME: testflash.exe【略】---------在上面显示的详细分析数据中:DEFAULT_BUCKET_ID: 错误类型,这个需要编程和操作系统内核知识的工程师用得上;PROCESS_NAME: XXX.exe这个是导致错误的进程,查出是什么文件导致的蓝屏后,再看这里就知道是谁调用了错误文件,比如你查出testflash.sys导致蓝屏,但你查不到testflash.sys是哪个程序调用的,就可以用这个方法来看看,比如查出了是testflash.exe,你就可以在机子上或者网上搜索相关信息了。