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Re: X segmentation fault when particular application attempts to open a window
- From: Yusuke Tamura <tamura at hpc-sol dot co dot jp>
- To: cygwin-xfree <cygwin-xfree at cygwin dot com>
- Cc: klindsay at ucar dot edu, Yusuke Tamura <tamura at hpc-sol dot co dot jp>
- Date: Fri, 27 Apr 2012 09:38:53 +0900
- Subject: Re: X segmentation fault when particular application attempts to open a window
- References: <4F985C8A.6020209@ucar.edu> <4F98705E.6010204@ucar.edu> <4F9990D0.9040103@dronecode.org.uk>
- Reply-to: cygwin-xfree at cygwin dot com
Jon,
thank you for the update! XWin is working as before.
I appreciate your prompt action very much.
Yusuke
>On 25/04/2012 22:45, Keith Lindsay wrote:
>> On 4/25/2012 2:20 PM, Keith Lindsay wrote:
>>> I'm running a data analysis program called ferret on a remote machine
>>> that I've logged on to with "ssh -X". When the program attempts to
>>> create a window, the Cygwin/X server crashes with a segmentation fault.
>>> The seg fault is reproducible.
>>>
>>> xclock works fine from the same remote machine.
>>>
>>> This is with version 1.12.0-4 of xorg-server.
>>>
>>> ferret has worked with some previous versions of the Cygwin/X server,
>>> but I'm not certain about the precise version where the breakage
>>> occurred. I backed up one version and encountered the same problem.
>>>
>>> I've attached the output of "cygcheck -c", the file
>>> /var/log/xwin/XWin.0.log, and the output of a gdb that is attached to
>>> the XWin process when it crashes.
>>
>> I realized that I can back up to other versions of xorg-server by
>> installing
>> from the local directory that contains previous version downloads. I have
>> discovered that ferret works fine with version 1.12.0-1 of xorg-server
>> (built
>> 2012-03-12) and generates the segmentation violation with version 1.12.0-2
>> (built 2012-04-04).
>
>Thanks for the excellent bug report.
>
>I've uploaded 1.12.0-5 which hopefully contains a fix for this crash.
>
>This crash was caused by the server being unable to find the bitmap which the
>application wants to use for it's icon, it's not clear why this is happening,
>so I would be interested to know if the application icon is correct or not.
>
>--
>Jon TURNEY
>Volunteer Cygwin/X X Server maintainer
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