X server crash when running texworks

[Ken Brown]

On 3/29/2012 8:14 AM, Jon TURNEY wrote:
> On 28/03/2012 13:44, Ken Brown wrote:
>> On 3/28/2012 8:28 AM, Ken Brown wrote:
>>> On 3/28/2012 7:16 AM, Jon TURNEY wrote:
>>>> I'm afraid I can't reproduce your issue, but looking at the backtrace
>>>> and the
>>>> somewhat intermittent nature of the fault, I think perhaps this crash is
>>>> caused by a race condition which exists in the conversion of the
>>>> window icon
>>>> from an X property to a Windows icon.
>>>>
>>>> I've uploaded a snapshot with some fixes for that at [1], perhaps you
>>>> could
>>>> try that out and see if it helps?
>>>>
>>>> [1]
>>>> ftp://cygwin.com/pub/cygwinx/XWin.20120328-git-ab32650607c59327.exe.bz2
>>>
>>> Yes, that seems to fix it. I just started texworks and compiled 6 or 7
>>> tex documents without a crash. I've never been able to do more than 1 or
>>> 2 before.
>
> Good.
>
>> I spoke too soon.  I closed texworks and was doing other things (not even
>> involving X to my knowledge), and the X server just crashed.  I'm attaching
>> XWin.0.log.
>
> Not so good :-(.  Thanks for testing it, anyway.
>
> I found a rather bad crash bug I'd introduced and fixed that, so you might
> want to try today's snapshot [1], but I'm not confident that I fixed the
> problem you saw, so a backtrace would be helpful if you still get crashes.

OK, I'm running it now and have attached gdb to it.  The good news is 
that I've been running it for a couple hours with no crash, and I've 
used texworks and have opened many tex files and pdf files in it without 
a problem.  The bad news is that texworks becomes unresponsive and has 
to be killed whenever I try to compile a tex file.  I have no idea 
whether this is due to an X server problem or something completely 
different.  Anyway, I'll post a backtrace if the server crashes.

In case you want to try to reproduce the current problem, start 
texworks, open a tex file (such as the file test1.tex whose contents I 
listed at the beginning of this thread), and click on the icon at the 
left end of the toolbar (brown triangle on a green background).  This is 
supposed to cause test1.tex to get compiled, but for me it just causes 
texworks to become unresponsive.  This was working properly with the 
previous version of the X server (until the server crashed).

After I kill texworks, `ps' shows a dbus-daemon process and a 
dbus-launch process that weren't there before I started texworks, but 
maybe that's to be expected.

Ken


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