cygwin 赢 8.1 错误 : find_fast_cwd: WARNING: Couldn't compute FAST_CWD pointer

Question

这个错误发生在前一段时间，2011年 http://cygwin.com/ml/cygwin/2013-11/msg00021.html

根据我在这篇文章和其他一些文章中所读到的内容，我看到他们写了一些丑陋的 hack 来解析 Windows dll 寻找这个FAST_CWD 变量。我最好的猜测是较新的 Windows 更新再次更改了 dll，现在该功能再次被破坏。

我不熟悉开发 cygwin 时使用的技能，所以我只是猜测这些事情。

有什么建议吗？

另外，也许这个日志可以提供一些启示:

Dito@Kungi ~
$ serverx11
-bash: serverx11: command not found

Dito@Kungi ~
$ startx11

Welcome to the XWin X Server
Vendor: The Cygwin/X Project
Release: 1.15.0.0
OS: CYGWIN_NT-6.3 Kungi 1.7.28(0.271/5/3) 2014-02-09 21:06 x86_64
OS: Windows 8.1  [Windows NT 6.3 build 9600](Win64)
Package: version 1.15.0-4 built 2014-03-27

XWin was started with the following command line:

X :0 -multiwindow

Initializing built-in extension Generic Event Extension
Initializing built-in extension SHAPE
Initializing built-in extension MIT-SHM
Initializing built-in extension XInputExtension
Initializing built-in extension XTEST
Initializing built-in extension BIG-REQUESTS
Initializing built-in extension SYNC
Initializing built-in extension XKEYBOARD
Initializing built-in extension XC-MISC
Initializing built-in extension XINERAMA
Initializing built-in extension XFIXES
Initializing built-in extension XFree86-Bigfont
Initializing built-in extension RENDER
Initializing built-in extension RANDR
Initializing built-in extension COMPOSITE
Initializing built-in extension DAMAGE
Initializing built-in extension MIT-SCREEN-SAVER
Initializing built-in extension DOUBLE-BUFFER
Initializing built-in extension RECORD
Initializing built-in extension DPMS
Initializing built-in extension Present
Initializing built-in extension X-Resource
Initializing built-in extension GLX
(II) xorg.conf is not supported
(II) See http://x.cygwin.com/docs/faq/cygwin-x-faq.html for more information
LoadPreferences: /home/Dito/.XWinrc not found
LoadPreferences: Loading /etc/X11/system.XWinrc
LoadPreferences: Done parsing the configuration file...
winDetectSupportedEngines - DirectDraw installed, allowing ShadowDD
winDetectSupportedEngines - Windows NT, allowing PrimaryDD
winDetectSupportedEngines - DirectDraw4 installed, allowing ShadowDDNL
winDetectSupportedEngines - Returning, supported engines 0000001f
winSetEngine - Multi Window or Rootless => ShadowGDI
winScreenInit - Using Windows display depth of 32 bits per pixel
winAllocateFBShadowGDI - Creating DIB with width: 1440 height: 900 depth: 32
winFinishScreenInitFB - Masks: 00ff0000 0000ff00 000000ff
winInitVisualsShadowGDI - Masks 00ff0000 0000ff00 000000ff BPRGB 8 d 24 bpp 32
winInitMultiWindowWM - Calling pthread_mutex_lock ()
winMultiWindowXMsgProc - Calling pthread_mutex_lock ()
MIT-SHM extension disabled due to lack of kernel support
XFree86-Bigfont extension local-client optimization disabled due to lack of shar                                                                                                                           ed memory support in the kernel
glWinSelectGLimplementation: Loaded 'cygnativeGLthunk.dll'
GL_VERSION:     1.1.0
GL_VENDOR:      Microsoft Corporation
GL_RENDERER:    GDI Generic
wglwrap: Can't resolve "wglGetExtensionsStringARB"
(EE) AIGLX: Won't use generic native renderer as it is not accelerated
glWinSelectGLimplementation: Loaded 'cygGL-1.dll'
(II) AIGLX: enabled GLX_EXT_texture_from_pixmap
(II) AIGLX: Loaded and initialized swrast
(II) GLX: Initialized DRISWRAST GL provider for screen 0
winPointerWarpCursor - Discarding first warp: 720 450
(--) 8 mouse buttons found
(--) Setting autorepeat to delay=500, rate=31
(--) Windows keyboard layout: "0000041A" (0000041a) "Croatian", type 7
(--) Found matching XKB configuration "Croatian"
(--) Model = "pc105" Layout = "hr" Variant = "none" Options = "none"
Rules = "base" Model = "pc105" Layout = "hr" Variant = "none" Options = "none"
The XKEYBOARD keymap compiler (xkbcomp) reports:
> Warning:          Type "ONE_LEVEL" has 1 levels, but <RALT> has 2 symbols
>                   Ignoring extra symbols
Errors from xkbcomp are not fatal to the X server
winBlockHandler - pthread_mutex_unlock()
winInitMultiWindowWM - pthread_mutex_lock () returned.
winInitMultiWindowWM - pthread_mutex_unlock () returned.
winInitMultiWindowWM - DISPLAY=:0.0
winMultiWindowXMsgProc - pthread_mutex_lock () returned.
winMultiWindowXMsgProc - pthread_mutex_unlock () returned.
winProcEstablishConnection - winInitClipboard returned.
winClipboardThreadProc - DISPLAY=:0.0
winMultiWindowXMsgProc - DISPLAY=:0.0
winInitMultiWindowWM - XOpenDisplay () returned and successfully opened the disp                                                                                                                           lay.
winClipboardProc - XOpenDisplay () returned and successfully opened the display.

Dito@Kungi ~
$ winMultiWindowXMsgProc - XOpenDisplay () returned and successfully opened the                                                                                                                            display.


Dito@Kungi ~
$ xcompas
      2 [main] xcompas 5796 find_fast_cwd: WARNING: Couldn't compute FAST_CWD po                                                                                                                           inter.  Please report this problem to
the public mailing list cygwin@cygwin.com
/cygdrive/c/cygwin64/usr/local/bin/xanchor.exe: error while loading shared libra                                                                                                                           ries: libXpm.dll: cannot open shared object file: No such file or directory
xcompas: DISPLAY environment variable is not set
Set DISPLAY environment variable

Answer 1

这通常意味着您需要更新 Cygwin，此时他们很可能早就修复了它。