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From: Eli Zaretskii <eliz@gnu.org>
To: Pip Cet <pipcet@gmail.com>
Cc: 36609@debbugs.gnu.org, politza@hochschule-trier.de
Subject: bug#36609: 27.0.50; Possible race-condition in threading implementation
Date: Fri, 12 Jul 2019 15:42:20 +0300	[thread overview]
Message-ID: <83muhj2zmb.fsf@gnu.org> (raw)
In-Reply-To: <CAOqdjBcQfjX-kZqimq7xUOk+oq+cNCf_1hiOfCFHL37dY9WaWg@mail.gmail.com> (message from Pip Cet on Fri, 12 Jul 2019 09:02:22 +0000)

> From: Pip Cet <pipcet@gmail.com>
> Date: Fri, 12 Jul 2019 09:02:22 +0000
> Cc: 36609@debbugs.gnu.org
> 
> On Thu, Jul 11, 2019 at 8:52 PM Andreas Politz
> <politza@hochschule-trier.de> wrote:
> > I think there is a race-condition in the implementation of threads.  I
> > tried to find a minimal test-case, without success.  Thus, I've attached
> > a lengthy source-file.  Loading that file should trigger this bug and
> > may freeze your session.
> 
> It does here, so I can provide further debugging information if
> needed.

Thanks, can you provide the info I asked for?

> On first glance, it appears that xgselect returns abnormally with
> g_main_context acquired in one thread, and then other threads fail
> to acquire it and loop endlessly.

If you can describe what causes this to happen, I think we might be
half-way to a solution.

> +  ptrdiff_t count = SPECPDL_INDEX ();

I don't think we should do that at this low level.





  reply	other threads:[~2019-07-12 12:42 UTC|newest]

Thread overview: 53+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-07-11 20:51 bug#36609: 27.0.50; Possible race-condition in threading implementation Andreas Politz
2019-07-12  7:47 ` Eli Zaretskii
2019-07-12  8:05   ` Eli Zaretskii
2019-07-12  9:02 ` Pip Cet
2019-07-12 12:42   ` Eli Zaretskii [this message]
2019-07-12 12:57     ` Pip Cet
2019-07-12 13:31       ` Eli Zaretskii
2019-07-12 13:51         ` Pip Cet
2019-07-12 15:05           ` Eli Zaretskii
2019-07-12 18:06             ` Pip Cet
2019-07-12 18:27               ` Eli Zaretskii
2019-07-12 18:34                 ` Eli Zaretskii
2019-07-12 19:24                   ` Pip Cet
2019-07-12 19:57                     ` Eli Zaretskii
2019-07-13 14:37                       ` Pip Cet
2019-07-13 15:03                         ` Eli Zaretskii
2019-07-13 15:13                           ` Eli Zaretskii
2019-07-13 15:54                           ` Eli Zaretskii
2019-07-13 15:57                             ` Pip Cet
2019-07-13 16:02                               ` Eli Zaretskii
2019-07-13 18:17                                 ` Pip Cet
2020-08-21 12:57                                   ` Lars Ingebrigtsen
2019-07-13 15:04                         ` Andreas Politz
2019-07-12 12:44   ` Pip Cet
2019-07-12 12:55     ` Eli Zaretskii
2019-07-12 13:40       ` Pip Cet
2019-07-12 13:51         ` Eli Zaretskii
2019-07-12 14:34           ` Pip Cet
2019-07-12 15:02             ` Eli Zaretskii
2019-07-12 19:30               ` Pip Cet
2019-07-13  6:50                 ` Eli Zaretskii
2021-06-06 15:50 ` dick.r.chiang
     [not found] ` <87fsxv8182.fsf@dick>
2021-06-06 16:35   ` Eli Zaretskii
2021-06-06 19:10     ` dick.r.chiang
2021-06-06 19:27       ` Eli Zaretskii
2021-06-09 21:40         ` dick.r.chiang
2021-06-10  6:46           ` Eli Zaretskii
2021-06-10 11:52             ` dick.r.chiang
2021-06-10 14:18               ` Eli Zaretskii
2021-06-10 14:55                 ` dick.r.chiang
2021-06-10 15:04                   ` Eli Zaretskii
2021-06-10 21:36                     ` dick.r.chiang
2021-06-11  6:00                       ` Eli Zaretskii
2021-06-19 17:53                         ` Eli Zaretskii
2021-06-19 19:14                           ` dick.r.chiang
2021-06-19 19:18                             ` Eli Zaretskii
2021-06-19 21:12                               ` dick.r.chiang
2021-06-20 11:39                                 ` Eli Zaretskii
2021-06-20 14:01                                   ` dick.r.chiang
2021-06-20 15:53                                     ` Eli Zaretskii
2021-06-25 13:54                                       ` Eli Zaretskii
2021-06-10 15:35                 ` Andreas Schwab
2021-06-10 15:39                   ` Eli Zaretskii

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