X-Recipient: archive-cygwin AT delorie DOT com
X-SWARE-Spam-Status: No, hits=-5.6 required=5.0	tests=AWL,BAYES_00,DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,FREEMAIL_FROM,KHOP_RCVD_TRUST,KHOP_THREADED,RCVD_IN_DNSWL_LOW,RCVD_IN_HOSTKARMA_YE,TW_CG
X-Spam-Check-By: sourceware.org
X-Received: by 10.180.14.10 with SMTP id l10mr14652317wic.7.1356128583121;        Fri, 21 Dec 2012 14:23:03 -0800 (PST)
Message-ID: <50D4E144.706@gmail.com>
Date: Fri, 21 Dec 2012 23:23:00 +0100
From: marco atzeri <marco DOT atzeri AT gmail DOT com>
User-Agent: Mozilla/5.0 (Windows NT 6.1; WOW64; rv:17.0) Gecko/17.0 Thunderbird/17.0
MIME-Version: 1.0
To: cygwin AT cygwin DOT com
Subject: Re: Intermittent failures retrieving process exit codes - snapshot test requested
References: <50C2498C DOT 2000003 AT coverity DOT com> <50C276AC DOT 9090301 AT mailme DOT ath DOT cx> <50D401EF DOT 9040705 AT coverity DOT com> <20121221103241 DOT GD18188 AT calimero DOT vinschen DOT de> <20121221161024 DOT GA10871 AT ednor DOT casa DOT cgf DOT cx> <20121221170219 DOT GF18188 AT calimero DOT vinschen DOT de> <20121221193620 DOT GA29203 AT ednor DOT casa DOT cgf DOT cx>
In-Reply-To: <20121221193620.GA29203@ednor.casa.cgf.cx>
Content-Type: text/plain; charset=ISO-8859-1; format=flowed
Content-Transfer-Encoding: 7bit
X-IsSubscribed: yes
Mailing-List: contact cygwin-help AT cygwin DOT com; run by ezmlm
List-Id: <cygwin.cygwin.com>
List-Subscribe: <mailto:cygwin-subscribe AT cygwin DOT com>
List-Archive: <http://sourceware.org/ml/cygwin/>
List-Post: <mailto:cygwin AT cygwin DOT com>
List-Help: <mailto:cygwin-help AT cygwin DOT com>, <http://sourceware.org/ml/#faqs>
Sender: cygwin-owner AT cygwin DOT com
Mail-Followup-To: cygwin AT cygwin DOT com
Delivered-To: mailing list cygwin AT cygwin DOT com

On 12/21/2012 8:36 PM, Christopher Faylor wrote:
> On Fri, Dec 21, 2012 at 06:02:19PM +0100, Corinna Vinschen wrote:
>> On Dec 21 11:10, Christopher Faylor wrote:
>>> On Fri, Dec 21, 2012 at 11:32:41AM +0100, Corinna Vinschen wrote:
>>>> Maybe the signal thread should really not exit by itself, but just
>>>> wait until the TerminateThread is called.  Chris?
>>>
>>> If the analysis is correct, that just fixes one symptom doesn't it?
>>> There are potentially many threads running in any Cygwin program
>>> and it sounds like any one of them could trigger this.
>>
>> Right.  I guess the question is how to synchronize things so that the
>> thread calling TerminateProcess is actually the last one, making sure
>> its return value is used.
>>
>> Maybe the NtQueryInformationThread(ThreadAmILastThread) call is of some
>> help.  Or we have to keep all thread IDs of the self-started threads
>> available to terminate them explicitely at process exit.
>
> I checked in a complicated fix for this problem which only affected
> Cygwin-created threads.  But, then, I thought about another riskier but
> simpler fix.  That version is now in CVS and I'm generating a new
> snapshot with it.
>
> I tested this lightly on Windows 7 and 32-bit XP but it would be nice to
> hear if multi-threaded things like X work on other platforms too.
>
> If you test a snapshot, note that I'm still tracking down Ken Brown's
> reporte emacs regression in recent snapshots so that will still be
> broken.
>
> cgf
>

I think the Xserver doesn't like it.
on 20121221 it freezes on start on W7/64
no issue on 20121218

Regards
Marco





--
Problem reports:       http://cygwin.com/problems.html
FAQ:                   http://cygwin.com/faq/
Documentation:         http://cygwin.com/docs.html
Unsubscribe info:      http://cygwin.com/ml/#unsubscribe-simple