NOTE: This underlying problem was solved by an update of Cygwin
packages and re-install of
vim. However, the question of how to
trace errors in shelling out remains, so answers along that front
would be appreciated.
I use Cygwin's 64-bit installation on Windows 10 Pro (64-bit), including X-windows and
gvim. In all the installs I've done this year, I get the following message:
** (gvim:2221): WARNING **: Error retrieving accessibility bus address: org.free desktop.DBus.Error.NoReply: Message recipient disconnected from message bus with out replying
I've successfully ignored it until now. On a brand new installation
yesterday, however, when I shell out from
gvim, it freezes. The task
manager shows 20% CPU usage due to
gvim, and I assume that its fully
using 1 of 4 cores (i5-8365U). This is observed from a
non-administrator account. Oddly, if I do the same thing from an
administrator account, it still freezes, but there is no CPU usage. I
make sure that I remove the following X-windows files from the
non-administrator account before switching to test from the
rm -rf ~/.serverauth.* /tmp/.X0-lock /tmp/.X11-unix /var/log/xwin/XWin.0.log
kill from a bash shell doesn't banish the window, and neither does ending the task from Task Manager (with and without elevated privileges). If I exit the
xterm from which
gvim was issued, however, the unresponsive
gvim process and window goes away.
I don't like doing this, however, as the current X-windows installation doesn't give me an option to launch a new
xterm. I need to shut down X-windows, then start it again.
vim/gvim in the question because I'm not sure where the problem occurs. The problem only shows with I use
gvim, but I can't necessarily blame
gvim. This is because I have one
vimrc for both, and it checks whether it is being run from Windows compilation or a cygwin compilation, and also checks whether it is
gvim. Some of the code differs depending on these checks. Having everything in one file is a net benefit, however, because I have a lot of common setup code. It means, however, that the cause of the crash could very well be due to different control flow in my
vimrc rather than Cygwin's
Is there a way to turn on verbose messaging so that I can see what is happening when I shell out?
Is there another way to trace the events that might cause this crash?
I usually shell out in one of 2 ways:
1. In normal mode, double-bang (!!) followed by a bash command, e.g.,
2. In the
: command line, starting with a bang (!), optionally preceded by a line range.
:set verbosedoesn't help, because I'm shelling out rather than calling
If I start
gvim -u NONE -U NONE, then
:scriptnamesshows only following and attempts to shell out no longer freeze gvim:
However, a normal mode like
!!lsdoesn't import the results of the
lscommand either. It merely results in the message
Command terminated. It would be nice to be able to trace the cause of this.
If I right-click the X-windows server on the system tray, I have to option of view the log file
Welcome to the XWin X Server Vendor: The Cygwin/X Project Release: 188.8.131.52 OS: CYGWIN_NT-10.0-18362 ___-____-___-__ 3.1.5-340.x86_64 2020-06-01 08:59 UTC x86_64 OS: Windows 10 [Windows NT 10.0 build 18362] (Win64) Package: version 1.20.5-3 built 2019-09-06 XWin was started with the following command line: /usr/bin/XWin :0 -multiwindow -auth /home/User.Name/.serverauth.1210 ddxProcessArgument - Initializing default screens winInitializeScreenDefaults - primary monitor w 1920 h 1080 winInitializeScreenDefaults - native DPI x 144 y 144 [ 845.234] (II) xorg.conf is not supported [ 845.234] (II) See http://x.cygwin.com/docs/faq/cygwin-x-faq.html for more information [ 845.234] LoadPreferences: /home/User.Name/.XWinrc not found [ 845.234] LoadPreferences: Loading /etc/X11/system.XWinrc [ 845.250] LoadPreferences: Done parsing the configuration file... [ 845.250] winDetectSupportedEngines - RemoteSession: no [ 845.296] winDetectSupportedEngines - DirectDraw4 installed, allowing ShadowDDNL [ 845.296] winDetectSupportedEngines - Returning, supported engines 00000005 [ 845.296] winSetEngine - Multi Window or Rootless => ShadowGDI [ 845.296] winScreenInit - Using Windows display depth of 32 bits per pixel [ 845.359] winAllocateFBShadowGDI - Creating DIB with width: 1920 height: 1080 depth: 32 [ 845.359] winFinishScreenInitFB - Masks: 00ff0000 0000ff00 000000ff [ 845.359] winInitVisualsShadowGDI - Masks 00ff0000 0000ff00 000000ff BPRGB 8 d 24 bpp 32 [ 845.359] MIT-SHM extension disabled due to lack of kernel support [ 845.359] XFree86-Bigfont extension local-client optimization disabled due to lack of shared memory support in the kernel [ 845.375] glWinSelectGLimplementation: Loaded 'cygnativeGLthunk.dll' [ 845.453] (II) AIGLX: Testing pixelFormatIndex 1 [ 845.531] GL_VERSION: 4.6.0 - Build 184.108.40.20690 [ 845.531] GL_VENDOR: Intel [ 845.531] GL_RENDERER: Intel(R) UHD Graphics 620 [ 845.531] (II) GLX: enabled GLX_SGI_make_current_read [ 845.531] (II) GLX: enabled GLX_SGI_swap_control [ 845.546] (II) GLX: enabled GLX_MESA_swap_control [ 845.546] (II) GLX: enabled GLX_SGIX_pbuffer [ 845.546] (II) GLX: enabled GLX_ARB_multisample [ 845.546] (II) GLX: enabled GLX_SGIS_multisample [ 845.546] (II) GLX: enabled GLX_ARB_fbconfig_float [ 845.546] (II) GLX: enabled GLX_EXT_fbconfig_packed_float [ 845.546] (II) GLX: enabled GLX_ARB_create_context [ 845.546] (II) GLX: enabled GLX_ARB_create_context_profile [ 845.546] (II) GLX: enabled GLX_ARB_create_context_robustness [ 845.546] (II) GLX: enabled GLX_EXT_create_context_es2_profile [ 845.546] (II) GLX: enabled GLX_ARB_framebuffer_sRGB [ 845.546] (II) AIGLX: enabled GLX_MESA_copy_sub_buffer [ 845.546] (II) 108 pixel formats reported by wglGetPixelFormatAttribivARB [ 845.562] (II) 72 fbConfigs [ 845.562] (II) ignored pixel formats: 0 not OpenGL, 0 unknown pixel type, 36 unaccelerated [ 845.562] (II) GLX: Initialized Win32 native WGL GL provider for screen 0 [ 846.203] winPointerWarpCursor - Discarding first warp: 960 540 [ 846.203] (--) 5 mouse buttons found [ 846.203] (--) Setting autorepeat to delay=500, rate=31 [ 846.203] (--) Windows keyboard layout: "00000409" (00000409) "US", type 7 [ 846.203] (--) Found matching XKB configuration "English (USA)" [ 846.203] (--) Model = "pc105" Layout = "us" Variant = "none" Options = "none" [ 846.203] Rules = "base" Model = "pc105" Layout = "us" Variant = "none" Options = "none" [ 846.203] [ 846.203] winInitMultiWindowWM - DISPLAY=:0.0 winMultiWindowXMsgProc - DISPLAY=:0.0 [ 846.421] winInitMultiWindowWM - xcb_connect () returned and successfully opened the display. [ 846.437] winProcEstablishConnection - winInitClipboard returned. [ 846.437] winClipboardThreadProc - DISPLAY=:0.0 [ 846.437] winMultiWindowXMsgProc - xcb_connect() returned and successfully opened the display. [ 846.437] winClipboardProc - xcb_connect () returned and successfully opened the display. [ 846.437] Using Composite redirection [ 851.250] SetupSysMenu: GetSystemMenu() failed for HWND 0x5048a [ 992.875] OS has icon alpha channel support: yes [ 1096.187] executing 'xterm -title $XWINLOGFILE -e less +F $XWINLOGFILE', pid 1282 [ 1101.500] SetupSysMenu: GetSystemMenu() failed for HWND 0x80752 [ 1142.750] executing 'xterm -title $XWINLOGFILE -e less +F $XWINLOGFILE', pid 1284 [ 1153.953] SetupSysMenu: GetSystemMenu() failed for HWND 0x50730 [ 1201.625] executing 'xterm -title $XWINLOGFILE -e less +F $XWINLOGFILE', pid 1286