help with running startxwin

help with running startxwin

[Karl K. Berggren]

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I get the following error when I run startxwin from a cygwin (1.7.20) 
prompt on my windows 8 surface tablet

"A fatal error has occurred and Cygwin/X will now exit

Caught signal 11 (Segmentation fault). Server aborting

Please open /var/log/xwin/XWin.0.log for more information

Vendor: The Cygwin/X Project
Release: 1.14.1.0

Package: version 1.14.1-1 built 2013-05-07

XWin was started with the following command-line:

X :0 -multiwindow"

I have also attached the /var/log file indicated...

Any help would be appreciated.

---------------------

[-- Attachment #2: XWin.0.log --]
[-- Type: text/plain, Size: 3479 bytes --]

Welcome to the XWin X Server
Vendor: The Cygwin/X Project
Release: 1.14.1.0
OS: CYGWIN_NT-6.2-WOW64 kbgrpkkbsurf 1.7.20(0.266/5/3) 2013-06-07 11:11 i686
OS: Windows 8  [Windows NT 6.2 build 9200] (WoW64)
Package: version 1.14.1-1 built 2013-05-07

XWin was started with the following command line:

X :0 -multiwindow 

ddxProcessArgument - Initializing default screens
winInitializeScreenDefaults - primary monitor w 1680 h 1050
winInitializeScreenDefaults - native DPI x 144 y 144
[213447.790] Initializing built-in extension Generic Event Extension
[213447.790] Initializing built-in extension SHAPE
[213447.790] Initializing built-in extension MIT-SHM
[213447.790] Initializing built-in extension XInputExtension
[213447.806] Initializing built-in extension XTEST
[213447.806] Initializing built-in extension BIG-REQUESTS
[213447.806] Initializing built-in extension SYNC
[213447.806] Initializing built-in extension XKEYBOARD
[213447.806] Initializing built-in extension XC-MISC
[213447.806] Initializing built-in extension XINERAMA
[213447.806] Initializing built-in extension XFIXES
[213447.806] Initializing built-in extension XFree86-Bigfont
[213447.806] Initializing built-in extension RENDER
[213447.806] Initializing built-in extension RANDR
[213447.806] Initializing built-in extension COMPOSITE
[213447.806] Initializing built-in extension DAMAGE
[213447.806] Initializing built-in extension MIT-SCREEN-SAVER
[213447.806] Initializing built-in extension DOUBLE-BUFFER
[213447.806] Initializing built-in extension RECORD
[213447.806] Initializing built-in extension DPMS
[213447.806] Initializing built-in extension X-Resource
[213447.806] Initializing built-in extension GLX
[213447.806] (II) xorg.conf is not supported
[213447.806] (II) See http://x.cygwin.com/docs/faq/cygwin-x-faq.html for more information
[213447.806] LoadPreferences: /cygdrive/c/Users/berggren/Dropbox/CygwinHome/.XWinrc not found
[213447.806] LoadPreferences: Loading /etc/X11/system.XWinrc
[213447.806] LoadPreferences: Done parsing the configuration file...
[213447.821] winDetectSupportedEngines - DirectDraw installed, allowing ShadowDD
[213447.821] winDetectSupportedEngines - Windows NT, allowing PrimaryDD
[213447.821] winDetectSupportedEngines - DirectDraw4 installed, allowing ShadowDDNL
[213447.837] winDetectSupportedEngines - Returning, supported engines 0000001f
[213447.868] winSetEngine - Multi Window or Rootless => ShadowGDI
[213447.868] winScreenInit - Using Windows display depth of 32 bits per pixel
[213447.931] winAllocateFBShadowGDI - Creating DIB with width: 1680 height: 1050 depth: 32
[213447.931] winFinishScreenInitFB - Masks: 00ff0000 0000ff00 000000ff
[213447.931] winInitVisualsShadowGDI - Masks 00ff0000 0000ff00 000000ff BPRGB 8 d 24 bpp 32
[213447.962] winInitMultiWindowWM - Calling pthread_mutex_lock ()
[213447.993] winMultiWindowXMsgProc - Calling pthread_mutex_lock ()
[213448.009] MIT-SHM extension disabled due to lack of kernel support
[213448.024] XFree86-Bigfont extension local-client optimization disabled due to lack of shared memory support in the kernel
[213448.071] Fatal signal received in thread 0x80000038
[213448.071] (EE) Segmentation fault at address 0x2c
[213448.289] (EE) Install gdb to get reasonable backtraces
[213448.305] (EE) /usr/bin/xorg-backtrace failed with returncode 2
[213448.305] Fatal server error: Caught signal 11 (Segmentation fault). Server aborting
[213448.305] Server terminated with error (1). Closing log file.


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Re: help with running startxwin

[Jon TURNEY]

On 11/06/2013 02:03, Karl K. Berggren wrote:
> I get the following error when I run startxwin from a cygwin (1.7.20) prompt
> on my windows 8 surface tablet
> 
> "A fatal error has occurred and Cygwin/X will now exit
> 
> Caught signal 11 (Segmentation fault). Server aborting

Thanks for reporting this problem.

Please can you obtain a backtrace using the method under "Generating a
backtrace when the X server is crashing at startup" in [1]?

[1] http://x.cygwin.com/devel/backtrace.html

-- 
Jon TURNEY
Volunteer Cygwin/X X Server maintainer

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Re: help with running startxwin

[Karl K. Berggren]

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here's the backlog

also the xwin log attached again, no idea if it would be different from 
this run, but just being thorough.

#0  0x64acb60e in ?? () from /cygdrive/c/windows/SysWOW64/ig7icd32.dll
No symbol table info available.
#1  0x64abec75 in ?? () from /cygdrive/c/windows/SysWOW64/ig7icd32.dll
No symbol table info available.
#2  0x64afde43 in ?? () from /cygdrive/c/windows/SysWOW64/ig7icd32.dll
No symbol table info available.
#3  0x00000001 in ?? ()
No symbol table info available.
#4  0x6d011e00 in ?? ()
No symbol table info available.
#5  0x00000008 in ?? ()
No symbol table info available.
#6  0x00000008 in ?? ()
No symbol table info available.
#7  0x00000008 in ?? ()
No symbol table info available.
#8  0x00000008 in ?? ()
No symbol table info available.
#9  0x00000010 in ?? ()
No symbol table info available.
#10 0x00000008 in ?? ()
No symbol table info available.
#11 0x00000000 in ?? ()
No symbol table info available.

On 6/11/2013 9:07 AM, Jon TURNEY wrote:
> On 11/06/2013 02:03, Karl K. Berggren wrote:
>> I get the following error when I run startxwin from a cygwin (1.7.20) prompt
>> on my windows 8 surface tablet
>>
>> "A fatal error has occurred and Cygwin/X will now exit
>>
>> Caught signal 11 (Segmentation fault). Server aborting
> Thanks for reporting this problem.
>
> Please can you obtain a backtrace using the method under "Generating a
> backtrace when the X server is crashing at startup" in [1]?
>
> [1] http://x.cygwin.com/devel/backtrace.html
>


[-- Attachment #2: XWin.0.log --]
[-- Type: text/plain, Size: 3100 bytes --]

Welcome to the XWin X Server
Vendor: The Cygwin/X Project
Release: 1.14.1.0
OS: CYGWIN_NT-6.2-WOW64 kbgrpkkbsurf 1.7.20(0.266/5/3) 2013-06-07 11:11 i686
OS: Windows 8  [Windows NT 6.2 build 9200] (WoW64)
Package: version 1.14.1-1 built 2013-05-07

XWin was started with the following command line:

/usr/bin/Xwin -multiwindow 

ddxProcessArgument - Initializing default screens
winInitializeScreenDefaults - primary monitor w 1680 h 1050
winInitializeScreenDefaults - native DPI x 144 y 144
[293904.214] Initializing built-in extension Generic Event Extension
[293904.214] Initializing built-in extension SHAPE
[293904.214] Initializing built-in extension MIT-SHM
[293904.214] Initializing built-in extension XInputExtension
[293904.214] Initializing built-in extension XTEST
[293904.214] Initializing built-in extension BIG-REQUESTS
[293904.214] Initializing built-in extension SYNC
[293904.214] Initializing built-in extension XKEYBOARD
[293904.214] Initializing built-in extension XC-MISC
[293904.214] Initializing built-in extension XINERAMA
[293904.214] Initializing built-in extension XFIXES
[293904.214] Initializing built-in extension XFree86-Bigfont
[293904.214] Initializing built-in extension RENDER
[293904.214] Initializing built-in extension RANDR
[293904.214] Initializing built-in extension COMPOSITE
[293904.214] Initializing built-in extension DAMAGE
[293904.214] Initializing built-in extension MIT-SCREEN-SAVER
[293904.214] Initializing built-in extension DOUBLE-BUFFER
[293904.214] Initializing built-in extension RECORD
[293904.214] Initializing built-in extension DPMS
[293904.214] Initializing built-in extension X-Resource
[293904.214] Initializing built-in extension GLX
[293904.214] (II) xorg.conf is not supported
[293904.214] (II) See http://x.cygwin.com/docs/faq/cygwin-x-faq.html for more information
[293904.214] LoadPreferences: /cygdrive/c/Users/berggren/Dropbox/CygwinHome/.XWinrc not found
[293904.214] LoadPreferences: Loading /etc/X11/system.XWinrc
[293904.214] LoadPreferences: Done parsing the configuration file...
[293904.292] winDetectSupportedEngines - DirectDraw installed, allowing ShadowDD
[293904.292] winDetectSupportedEngines - Windows NT, allowing PrimaryDD
[293904.292] winDetectSupportedEngines - DirectDraw4 installed, allowing ShadowDDNL
[293904.370] winDetectSupportedEngines - Returning, supported engines 0000001f
[293904.401] winSetEngine - Multi Window or Rootless => ShadowGDI
[293904.401] winScreenInit - Using Windows display depth of 32 bits per pixel
[293904.573] winAllocateFBShadowGDI - Creating DIB with width: 1680 height: 1050 depth: 32
[293904.573] winFinishScreenInitFB - Masks: 00ff0000 0000ff00 000000ff
[293904.573] winInitVisualsShadowGDI - Masks 00ff0000 0000ff00 000000ff BPRGB 8 d 24 bpp 32
[293904.604] winInitMultiWindowWM - Calling pthread_mutex_lock ()
[293904.635] winMultiWindowXMsgProc - Calling pthread_mutex_lock ()
[293904.635] MIT-SHM extension disabled due to lack of kernel support
[293904.651] XFree86-Bigfont extension local-client optimization disabled due to lack of shared memory support in the kernel


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Re: help with running startxwin

[Jon TURNEY]

On 12/06/2013 00:18, Karl K. Berggren wrote:
> here's the backlog
> 
> also the xwin log attached again, no idea if it would be different from this
> run, but just being thorough.
> 
> #0  0x64acb60e in ?? () from /cygdrive/c/windows/SysWOW64/ig7icd32.dll

Thanks.  This isn't as useful as it might be, but it shows that the crash is
occurring somewhere in the OpenGL ICD for the Intel Graphics display driver.

You might try using a different driver version to see if this fixes the problem.

Or, you should be able to work around this problem by starting the X server
with the -nowgl option, or possibly by using the GLWIN_NO_WGL_EXTENSIONS
environment variable.

Short of debugging into the crash, it's difficult to determine if this is a
Cygwin X server bug, or one in the graphics driver.

> On 6/11/2013 9:07 AM, Jon TURNEY wrote:
>> On 11/06/2013 02:03, Karl K. Berggren wrote:
>>> I get the following error when I run startxwin from a cygwin (1.7.20) prompt
>>> on my windows 8 surface tablet
>>>
>>> "A fatal error has occurred and Cygwin/X will now exit
>>>
>>> Caught signal 11 (Segmentation fault). Server aborting
>> Thanks for reporting this problem.
>>
>> Please can you obtain a backtrace using the method under "Generating a
>> backtrace when the X server is crashing at startup" in [1]?
>>
>> [1] http://x.cygwin.com/devel/backtrace.html

-- 
Jon TURNEY
Volunteer Cygwin/X X Server maintainer

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Re: help with running startxwin

[Karl K. Berggren]

The -nowgl workaround you suggested worked.

Thank you!

On 14/06/2013 Jon TURNEY wrote:

> You might try using a different driver version to see if this fixes the problem.

> Or, you should be able to work around this problem by starting the X server
> with the -nowgl option, or possibly by using the GLWIN_NO_WGL_EXTENSIONS
> environment variable.


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