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如何调试win32上的文件系统“拒绝访问”错误?

  •  3
  • jkp  · 技术社区  · 15 年前

    我现在非常喜欢我们的构建脚本:我正在使用 Waf 为了推动我们的构建过程,一切都很好地工作,除了在Windows上,在构建过程中我会遇到间歇性错误。

    这些错误基本上都是一个或另一个窗体的“拒绝访问”错误,与我在构建过程中创建的临时文件有关,以使某些工具能够运行并完成它的工作。例如,在运行之前 NSIS 要生成一个可执行的安装程序,我必须将所有必需的文件“准备”到构建目录,然后从中运行命令。有时事情按预期工作,但有时我会收到一个关于我复制的一个文件的错误报告,例如:

    File: failed opening file "Platform\\Win32\\lxml-2.2.1-py2.6-win32.egg

    我花了一段时间试图找出问题所在,但这确实很困难,因为问题是间歇性的。我最后尝试的是使用 procmon 要监视文件系统访问以尝试跟踪导致访问错误的原因:我知道文件在那里,所以一定是某个文件打开了。我将相关的输出包含在下面,因为我看不出有什么问题:python似乎在nsis想打开文件之前关闭了文件,但是nsis失败了。有人能解释一下吗?这个问题不仅局限于这种情况,而且也适用于其他情况,在这些情况下,我生成子进程来处理我复制到构建目录中的文件…

    7:35:15.9704427 PM  python.exe  4968    QueryOpen   ..\Path\To\Build\lxml-2.2.1-py2.6-win32.egg FAST IO DISALLOWED  
    7:35:15.9707497 PM  python.exe  4968    CreateFile  ..\Path\To\Build\lxml-2.2.1-py2.6-win32.egg SUCCESS Desired Access: Read Attributes, Disposition: Open, Options: Open Reparse Point, Attributes: n/a, ShareMode: Read, Write, Delete, AllocationSize: n/a, OpenResult: Opened
    7:35:15.9708634 PM  python.exe  4968    QueryBasicInformationFile   ..\Path\To\Build\lxml-2.2.1-py2.6-win32.egg SUCCESS CreationTime: 7/25/2009 7:35:11 PM, LastAccessTime: 7/25/2009 7:35:11 PM, LastWriteTime: 7/25/2009 7:35:11 PM, ChangeTime: 7/25/2009 7:35:11 PM, FileAttributes: A
    7:35:15.9709271 PM  python.exe  4968    CloseFile   ..\Path\To\Build\lxml-2.2.1-py2.6-win32.egg SUCCESS 
    7:35:15.9785180 PM  python.exe  4968    CreateFile  ..\Path\To\Build\lxml-2.2.1-py2.6-win32.egg SUCCESS Desired Access: Write Attributes, Synchronize, Disposition: Open, Options: Synchronous IO Non-Alert, Open Reparse Point, Attributes: n/a, ShareMode: Read, Write, Delete, AllocationSize: n/a, OpenResult: Opened
    7:35:15.9786119 PM  python.exe  4968    SetBasicInformationFile ..\Path\To\Build\lxml-2.2.1-py2.6-win32.egg SUCCESS CreationTime: 1/1/1601 1:00:00 AM, LastAccessTime: 1/1/1601 1:00:00 AM, LastWriteTime: 1/1/1601 1:00:00 AM, ChangeTime: 1/1/1601 1:00:00 AM, FileAttributes: AN
    7:35:15.9787155 PM  python.exe  4968    CloseFile   ..\Path\To\Build\lxml-2.2.1-py2.6-win32.egg SUCCESS 
    7:35:15.9789401 PM  python.exe  4968    QueryOpen   ..\Path\To\Build\lxml-2.2.1-py2.6-win32.egg FAST IO DISALLOWED  
    7:35:15.9790309 PM  python.exe  4968    CreateFile  ..\Path\To\Build\lxml-2.2.1-py2.6-win32.egg SUCCESS Desired Access: Read Attributes, Disposition: Open, Options: Open Reparse Point, Attributes: n/a, ShareMode: Read, Write, Delete, AllocationSize: n/a, OpenResult: Opened
    7:35:15.9790700 PM  python.exe  4968    QueryBasicInformationFile   ..\Path\To\Build\lxml-2.2.1-py2.6-win32.egg SUCCESS CreationTime: 7/25/2009 7:35:11 PM, LastAccessTime: 7/25/2009 7:35:11 PM, LastWriteTime: 7/25/2009 7:35:11 PM, ChangeTime: 7/25/2009 7:35:12 PM, FileAttributes: A
    7:35:15.9790952 PM  python.exe  4968    CloseFile   ..\Path\To\Build\lxml-2.2.1-py2.6-win32.egg SUCCESS 
    7:35:15.9792809 PM  python.exe  4968    CreateFile  ..\Path\To\Build\lxml-2.2.1-py2.6-win32.egg SUCCESS Desired Access: Write Attributes, Synchronize, Disposition: Open, Options: Synchronous IO Non-Alert, Open Reparse Point, Attributes: n/a, ShareMode: Read, Write, Delete, AllocationSize: n/a, OpenResult: Opened
    7:35:15.9793270 PM  python.exe  4968    SetBasicInformationFile ..\Path\To\Build\lxml-2.2.1-py2.6-win32.egg SUCCESS CreationTime: 1/1/1601 1:00:00 AM, LastAccessTime: 1/1/1601 1:00:00 AM, LastWriteTime: 1/1/1601 1:00:00 AM, ChangeTime: 1/1/1601 1:00:00 AM, FileAttributes: AN
    7:35:15.9794041 PM  python.exe  4968    CloseFile   ..\Path\To\Build\lxml-2.2.1-py2.6-win32.egg SUCCESS 
    7:35:16.3508170 PM  makensis.exe    3296    CreateFile  ..\Path\To\Build\lxml-2.2.1-py2.6-win32.egg SHARING VIOLATION   Desired Access: Generic Read, Disposition: Open, Options: Sequential Access, Synchronous IO Non-Alert, Non-Directory File, Attributes: N, ShareMode: Read, AllocationSize: n/a
    7:35:16.3557763 PM  python.exe  4968    QueryOpen   ..\Path\To\Build\lxml-2.2.1-py2.6-win32.egg FAST IO DISALLOWED  
    7:35:16.3558928 PM  python.exe  4968    CreateFile  ..\Path\To\Build\lxml-2.2.1-py2.6-win32.egg SUCCESS Desired Access: Read Attributes, Disposition: Open, Options: Open Reparse Point, Attributes: n/a, ShareMode: Read, Write, Delete, AllocationSize: n/a, OpenResult: Opened
    7:35:16.3559461 PM  python.exe  4968    QueryNetworkOpenInformationFile ..\Path\To\Build\lxml-2.2.1-py2.6-win32.egg SUCCESS CreationTime: 7/25/2009 7:35:11 PM, LastAccessTime: 7/25/2009 7:35:11 PM, LastWriteTime: 7/25/2009 7:35:11 PM, ChangeTime: 7/25/2009 7:35:12 PM, AllocationSize: 1/1/1601 1:00:00 AM, EndOfFile: 1/1/1601 1:00:00 AM, FileAttributes: A
    7:35:16.3560121 PM  python.exe  4968    CloseFile   ..\Path\To\Build\lxml-2.2.1-py2.6-win32.egg SUCCESS 
    7:35:16.3562048 PM  python.exe  4968    CreateFile  ..\Path\To\Build\lxml-2.2.1-py2.6-win32.egg SHARING VIOLATION   Desired Access: Read Attributes, Delete, Disposition: Open, Options: Non-Directory File, Open Reparse Point, Attributes: n/a, ShareMode: Read, Write, Delete, AllocationSize: n/a
    7:35:21.9320579 PM  python.exe  3160    CloseFile   ..\Path\To\Build\lxml-2.2.1-py2.6-win32.egg SUCCESS 
    
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  •   Martin v. Löwis    15 年前

    在该跟踪中,跟踪开始时文件已经存在。因此,其他一些东西可能使它保持打开状态(例如,病毒扫描程序或索引服务)。