From: Denis Excoffier <cygwin@Denis-Excoffier.org>
To: Cygwin Mailing List <cygwin@cygwin.com>
Subject: Re: Intermittent failures retrieving process exit codes
Date: Sun, 17 Nov 2013 13:30:00 -0000 [thread overview]
Message-ID: <8A6F3A3D-CAA4-4072-8D24-0CE261E09990@Denis-Excoffier.org> (raw)
In-Reply-To: <20131115192138.GA6128@ednor.casa.cgf.cx>
On 2013-11-15 20:21, Christopher Faylor wrote:
> On Fri, Nov 15, 2013 at 07:53:26PM +0100, Denis Excoffier wrote:
>> On 2013-11-14 05:01, Tom Honermann wrote:
>>> On 12/21/2012 01:30 AM, Tom Honermann wrote:
>>>>
>>>> The workaround I implemented within Cygwin was simple and sloppy. I
>>>> added a call to Sleep(1000) immediately before the call to ExitThread()
>>>> in wait_sig() in winsup/cygwin/sigproc.cc. Since this thread (probably)
>>>> doesn't exit until the process is exiting anyway, the call to Sleep()
>>>> does not adversely affect shutdown. The thread just gets terminated
>>>> while in the call to Sleep() instead of exiting before the process is
>>>> terminated or getting terminated while still in the call to
>>>> ExitThread(). A better solution might be to avoid the thread exiting at
>>>> all (so long as it can't get terminated while holding critical
>>>> resources), or to have the process exiting thread wait on it. Neither
>>>> of these is ideal. Orderly shutdown of multi-threaded processes is
>>>> really hard to do correctly on Windows.
>>
>> I experience on Windows 7 (not on XP) some problems that may be related.
>> I would like to test your workaround, but sigproc.cc has much changed since
>> then, there is now an exit_thead function with the comment "Exit the current
>> thread very carefully.". I tried to insert Sleep(1000) at the end of
>> exit_thread, immediately before "ExitThread (0)", but this yielded no
>> change at all.
>>
>> Could someone be kind enough to update the workaround for modern sigproc.cc?
>
> You apparently are misunderstanding the whole point of the changes to
> sigproc.cc. They were to work around this very problem.
Oh, i didn’t remember that. Then this must be the antivirus or something else
i have to cope with.
Regards,
Denis Excoffier.
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next prev parent reply other threads:[~2013-11-17 13:30 UTC|newest]
Thread overview: 65+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-12-07 19:55 Tom Honermann
2012-12-07 21:54 ` Tom Honermann
2012-12-07 23:07 ` bartels
2012-12-21 6:30 ` Tom Honermann
2012-12-21 10:33 ` Corinna Vinschen
2012-12-21 12:15 ` Nick Lowe
2012-12-21 19:45 ` Tom Honermann
2012-12-22 3:09 ` Nick Lowe
2012-12-21 16:10 ` Christopher Faylor
2012-12-21 17:02 ` Corinna Vinschen
2012-12-21 19:36 ` Intermittent failures retrieving process exit codes - snapshot test requested Christopher Faylor
2012-12-21 20:37 ` Daniel Colascione
2012-12-21 22:23 ` marco atzeri
2012-12-21 23:09 ` Tom Honermann
2012-12-22 2:53 ` Christopher Faylor
2012-12-22 2:57 ` Tom Honermann
2012-12-22 2:49 ` Christopher Faylor
2012-12-22 3:14 ` Christopher Faylor
2012-12-22 9:06 ` marco atzeri
2012-12-22 17:50 ` Christopher Faylor
2012-12-23 16:56 ` Christopher Faylor
2012-12-23 18:54 ` marco atzeri
2012-12-27 20:50 ` Tom Honermann
2012-12-29 21:57 ` Christopher Faylor
2013-01-01 1:45 ` Tom Honermann
2013-01-01 5:36 ` Christopher Faylor
2013-01-02 19:15 ` Tom Honermann
2013-01-02 20:48 ` Christopher Faylor
2013-01-02 20:53 ` Daniel Colascione
2013-01-02 21:41 ` Christopher Faylor
2013-01-02 21:25 ` Tom Honermann
2013-01-15 22:17 ` Intermittent failures with ctrl-c (was: retrieving process exit codes) Tom Honermann
2013-01-16 2:04 ` Christopher Faylor
2013-01-16 16:38 ` Intermittent failures with ctrl-c Tom Honermann
2013-01-16 16:53 ` marco atzeri
2013-01-16 17:42 ` Tom Honermann
2013-01-16 18:05 ` Earnie Boyd
2013-01-16 18:51 ` Tom Honermann
2013-01-16 18:59 ` Christopher Faylor
2013-01-16 20:19 ` Tom Honermann
2013-01-16 22:23 ` Christopher Faylor
2013-01-18 20:12 ` Tom Honermann
2013-01-19 5:58 ` Christopher Faylor
2013-01-20 22:09 ` Tom Honermann
2013-01-23 3:20 ` Tom Honermann
2013-01-23 5:27 ` Christopher Faylor
2013-01-23 18:18 ` Tom Honermann
2013-01-23 18:35 ` Christopher Faylor
2013-01-24 4:12 ` Tom Honermann
2013-01-16 19:14 ` Christopher Faylor
2013-01-16 20:24 ` Tom Honermann
2012-12-21 20:01 ` Intermittent failures retrieving process exit codes Tom Honermann
2013-11-14 4:02 ` Tom Honermann
2013-11-14 9:20 ` Corinna Vinschen
2013-11-14 15:21 ` Tom Honermann
2013-11-15 18:53 ` Denis Excoffier
2013-11-15 19:21 ` Christopher Faylor
2013-11-17 13:30 ` Denis Excoffier [this message]
2013-11-15 22:15 ` Tom Honermann
2013-11-25 19:59 ` Lasse Collin
2013-11-25 23:12 ` Antivirus strikes back (probably) (Was: Intermittent failures retrieving process exit codes) Denis Excoffier
2013-11-26 21:09 ` Denis Excoffier
2013-11-26 21:09 ` Denis Excoffier
2013-11-26 23:36 ` Christopher Faylor
2013-12-01 13:24 ` Lasse Collin
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