Message-ID: <501A946A.2030102@cornell.edu>
Date: Thu, 02 Aug 2012 10:53:30 -0400
From: Ken Brown <kbrown@cornell.edu>
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To: cygwin@cygwin.com
Subject: Re: crash on latest cygwin snapshot
References: <4FEA1B54.2030905@gmail.com> <20120626203229.GC26174@ednor.casa.cgf.cx> <4FEA20AB.8060503@gmail.com> <20120626205331.GD26174@ednor.casa.cgf.cx> <20120627014651.GA10400@ednor.casa.cgf.cx> <4FF1B37A.4000902@gmail.com> <20120801094311.GE18636@calimero.vinschen.de> <50190645.2050209@gmail.com> <20120801122902.GC17949@calimero.vinschen.de> <50192522.4090507@cornell.edu> <20120801125834.GH17949@calimero.vinschen.de>
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On 8/1/2012 8:58 AM, Corinna Vinschen wrote:
> On Aug  1 08:46, Ken Brown wrote:
>> On 8/1/2012 8:29 AM, Corinna Vinschen wrote:
>>> On Aug  1 12:34, marco atzeri wrote:
>>>> On 8/1/2012 11:43 AM, Corinna Vinschen wrote:
>>>>> Hi Marco, Hi Ken,
>>>>>
>>>>> On Jul  2 16:43, marco atzeri wrote:
>>>>>> On 6/27/2012 3:46 AM, Christopher Faylor wrote:
>>>>>>>
>>>>>>> Sorry, Marco.  Nevermind.  I duplicated this.  No need to upload anything.
>>>>>>> I'm still working on it.
>>>>>>>
>>>>>>> cgf
>>>>>>>
>>>>>>
>>>>>> it seems solved on 20120702 snapshots
>>>>>
>>>>> can you please test your crashing scenarios with the latest developer
>>>>> snapshot from today?  After some private discussion, cgf and I have a
>>>>> hunch that the underlying problem was the problem I fixed yesterday, and
>>>>> cgf's changes to Makefile.in on 2012-07-01 made just enough changes in
>>>>> code optimization so that your problem wasn't visible anymore.
>>>>>
>>>>> I reverted cgf's changes to Makefile.in and generated the today's
>>>>> snapshot specificially to test our hypothesis.  Please give it a try.
>>>>>
>>>>>
>>>>> Thanks,
>>>>> Corinna
>>>>>
>>>>
>>>> $ uname -a
>>>> CYGWIN_NT-6.1-WOW64 MARCOATZERI 1.7.17s(0.262/5/3) 20120801 11:02:01
>>>> i686 Cygwin
>>>>
>>>> is not crashing.
>>>
>>> Thanks for the quick feedback!  Now let's see what Ken reports...
>>
>> I never had a reliable way of reproducing the crash (see
>> http://cygwin.com/ml/cygwin/2012-06/msg00464.html).  It happened
>> seemingly at random, and very sporadically.  But I have the snapshot
>> installed and will exercise it as much as I can.
>
> Thanks!

The good news: I haven't seen a repeat of that old crash so far. 
Unfortunately, I'm finding that emacs is unstable:  The emacs window 
(running under X) simply disappears after 12-24 hours.  This may not 
have anything to do with the most recent changes.  I haven't yet tested 
any earlier snapshots.

Testing this is a very slow process, since I don't know how to produce 
the problem; I just have to wait and see if emacs will die.

I tried to get some information by running emacs under gdb the most 
recent time I started it, but all I got was this:

(gdb) c
Continuing.
[Inferior 1 (process 8196) exited with code 05400]
(gdb) bt
No stack

Does that exit code mean anything to you?  I couldn't find anything by 
googling.

Ken

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