From: Eli Zaretskii <eliz@gnu.org>
To: "Elias Mårtenson" <lokedhs@gmail.com>
Cc: raeburn@raeburn.org, tino.calancha@gmail.com, 25247@debbugs.gnu.org
Subject: bug#25247: 26.0.50; Concurrency crashes with XLib
Date: Fri, 30 Dec 2016 13:05:46 +0200 [thread overview]
Message-ID: <834m1lu16d.fsf@gnu.org> (raw)
In-Reply-To: <CADtN0WL-b=6aV_Xc0UcX=3TLgdEQ93xvzQp7kW5SjWxMQDqFEw@mail.gmail.com> (message from Elias Mårtenson on Fri, 30 Dec 2016 18:30:05 +0800)
> From: Elias Mårtenson <lokedhs@gmail.com>
> Date: Fri, 30 Dec 2016 18:30:05 +0800
> Cc: Tino Calancha <tino.calancha@gmail.com>, raeburn@raeburn.org, 25247@debbugs.gnu.org
>
> The C-g issue is still gone.
>
> As for the concurrency issues. I have been hammering this thing pretty
> hard, and no crashes so far.
Thanks, this is good news.
> I open IELM in one window, and an empty buffer "z" in another, and type the
> following:
>
> (loop
> repeat 10
> do (make-thread (lambda ()
> (let ((n (random 10)))
> (with-current-buffer "z"
> (sleep-for n)
> (insert (format "Foo:%d\n" n)))))))
>
> Here, I'd expect to see the "z" buffer being updated at the corresponding
> times. I.e. the message "Foo:4" should be displayed after 4 seconds. This
> is not what I see. Instead the messages appear in batches (i.e. several
> rows appearing at the same time).
And what do the messages that appear together say in the %d part? Do
they all show the same value?
> The following seems to be a problem with lexically bound lambda functions
> used in a thread. The following example illustrates the problem:
>
> (let ((x "test"))
> (make-thread (lambda ()
> (with-current-buffer "z"
> (insert x)))))
>
> I would expect this to insert "test" into the buffer, but instead nothing
> happens. Removing the reference to the variable "x" in the lambda makes it
> work.
Isn't the above expected? If not, why not?
And what do you mean by "removing the reference"?
next prev parent reply other threads:[~2016-12-30 11:05 UTC|newest]
Thread overview: 33+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-12-22 10:20 bug#25247: 26.0.50; Concurrency crashes Tino Calancha
2016-12-22 17:28 ` Eli Zaretskii
2016-12-23 3:34 ` Tino Calancha
2016-12-23 8:34 ` Eli Zaretskii
2016-12-23 11:32 ` Tino Calancha
2016-12-23 14:14 ` Eli Zaretskii
2016-12-29 11:37 ` bug#25247: 26.0.50; Concurrency crashes with XLib Tino Calancha
2016-12-29 17:44 ` Eli Zaretskii
2016-12-30 3:13 ` Tino Calancha
2016-12-30 7:19 ` Ken Raeburn
2016-12-30 8:37 ` Eli Zaretskii
2016-12-30 9:41 ` Eli Zaretskii
2016-12-30 10:30 ` Elias Mårtenson
2016-12-30 11:05 ` Eli Zaretskii [this message]
2016-12-30 11:21 ` Elias Mårtenson
2016-12-30 18:54 ` Eli Zaretskii
2016-12-30 20:40 ` Eli Zaretskii
2016-12-31 11:05 ` Eli Zaretskii
2016-12-31 15:34 ` Elias Mårtenson
2016-12-31 15:51 ` Eli Zaretskii
2016-12-31 16:24 ` Elias Mårtenson
2016-12-31 17:18 ` Eli Zaretskii
2016-12-31 17:28 ` Elias Mårtenson
2016-12-31 18:06 ` Eli Zaretskii
2016-12-31 18:16 ` Elias Mårtenson
2016-12-31 18:29 ` Eli Zaretskii
2016-12-31 18:38 ` Eli Zaretskii
2016-12-30 13:45 ` Tino Calancha
2016-12-30 16:57 ` Eli Zaretskii
2017-01-06 0:03 ` npostavs
2017-01-06 7:48 ` Eli Zaretskii
2016-12-23 9:34 ` bug#25247: 26.0.50; Concurrency crashes Ken Raeburn
2016-12-23 10:04 ` Eli Zaretskii
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