From: "Charles A. Roelli" <charles@aurox.ch>
To: Alan Third <alan@idiocy.org>
Cc: 25265@debbugs.gnu.org
Subject: bug#25265: make-thread crashes in OS X 10.6
Date: Mon, 12 Jun 2017 21:32:21 +0200 [thread overview]
Message-ID: <b41f07ff-b71a-a946-f464-ad66d1323e87@aurox.ch> (raw)
In-Reply-To: <20170502204935.GA79100@breton.holly.idiocy.org>
The issue seems to be improved now (not sure what changed it).
I tried this sample code, and it worked without a crash:
(dotimes (i 100)
(make-thread (lambda () "string")))
Then I tried this code, and there's a crash every few runs (or
sometimes, an infinite loop that can't be exited without killing the
process). The crash normally happens when I supply input (via the
keyboard), and the loop seems to be happen randomly.
(make-thread (lambda ()
(dotimes (i 10)
(sit-for 1)
(goto-char (random (buffer-size))))))
I also noticed GDB's I/O buffer printing many of these warnings as
soon as the `make-thread' form was called:
2017-06-12 21:13:55.943 Emacs[10829:6683] *** __NSAutoreleaseNoPool():
Object 0x10216bf50 of class NSBezierPath autoreleased with no pool in
place - just leaking
2017-06-12 21:13:55.944 Emacs[10829:6683] *** __NSAutoreleaseNoPool():
Object 0x101ec41b0 of class NSBezierPath autoreleased with no pool in
place - just leaking
2017-06-12 21:13:56.443 Emacs[10829:6683] *** __NSAutoreleaseNoPool():
Object 0x10216c0f0 of class NSBezierPath autoreleased with no pool in
place - just leaking
2017-06-12 21:13:56.444 Emacs[10829:6683] *** __NSAutoreleaseNoPool():
Object 0x101ec43e0 of class NSBezierPath autoreleased with no pool in
place - just leaking
On 02/05/2017 22:49, Alan Third wrote:
> On Sat, Dec 24, 2016 at 12:06:45PM +0100, Charles A. Roelli wrote:
>> Running Emacs -Q on the latest commit (e36a3882),
>>
>> M-: (make-thread (lambda () "string"))
>>
>> appears to hang Emacs immediately.
> I’ve been working on this on and off for a while now, and I just can’t
> fix it.
>
> I’ve attached two patches that together are the best I’ve managed to
> achieve, but unfortunately it randomly freezes up with 100% CPU usage.
>
> I’ve not yet managed to work out what it’s doing when it goes into the
> 100% CPU loop. I can only assume I’ve missed some crucial case in
> ns_select or something.
>
> The first patch stops the NS port from using SIGIO, as it seems to be
> the source of a number of problems. The second removes the NS event
> loop in ns_select as it requires block_input/unblock_input wrapped
> around it, but that’s what’s causing the crash in make-thread.
>
> Instead it just looks for whether there is a new NS event as I don’t
> think that requires blocking input.
>
next prev parent reply other threads:[~2017-06-12 19:32 UTC|newest]
Thread overview: 40+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-12-24 11:06 bug#25265: make-thread crashes in OS X 10.6 Charles A. Roelli
2016-12-24 17:51 ` Eli Zaretskii
2016-12-25 15:52 ` Eli Zaretskii
2016-12-26 13:09 ` Alan Third
2016-12-26 15:52 ` Eli Zaretskii
2016-12-26 20:56 ` Alan Third
2016-12-27 7:30 ` Eli Zaretskii
2016-12-27 10:44 ` Alan Third
2016-12-27 11:13 ` Eli Zaretskii
2016-12-28 19:36 ` Alan Third
2016-12-29 17:12 ` Eli Zaretskii
2016-12-30 18:45 ` Alan Third
2016-12-30 21:08 ` Eli Zaretskii
2016-12-30 22:05 ` Alan Third
2016-12-31 9:20 ` Eli Zaretskii
2016-12-31 16:09 ` bug#25265: [PATCH] Rework NS event handling (bug#25265) Alan Third
2016-12-31 16:25 ` Eli Zaretskii
2016-12-31 16:46 ` Alan Third
2017-01-01 15:03 ` Alan Third
2017-01-01 15:42 ` Eli Zaretskii
2017-03-06 20:02 ` bug#25265: make-thread crashes in OS X 10.6 Alan Third
2017-03-08 20:17 ` Charles A. Roelli
2017-03-14 14:49 ` Alan Third
2017-05-02 20:49 ` Alan Third
2017-06-12 19:32 ` Charles A. Roelli [this message]
2017-06-13 20:46 ` Alan Third
2017-06-15 18:57 ` Charles A. Roelli
2017-06-15 19:04 ` Alan Third
2017-06-15 19:14 ` Noam Postavsky
2017-06-16 19:45 ` Alan Third
2017-06-16 20:05 ` Noam Postavsky
2017-06-16 20:51 ` Alan Third
2017-06-18 13:05 ` Charles A. Roelli
2017-06-18 14:01 ` Alan Third
2017-06-19 18:34 ` Charles A. Roelli
2017-07-01 12:04 ` Alan Third
2017-07-04 6:59 ` Charles A. Roelli
2017-07-04 12:04 ` npostavs
[not found] ` <20170705193642.GA18888@breton.holly.idiocy.org>
2017-07-06 9:25 ` Charles A. Roelli
2017-07-06 17:10 ` Charles A. Roelli
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