GNU logs - #79782, boring messages

Message sent to bug-gnu-emacs@HIDDEN:

Subject: bug#79782: 31.0.50; M-x emacs-lisp-native-compile does not complete
Resent-From: Gerd =?UTF-8?Q?M=C3=B6llmann?= <gerd.moellmann@HIDDEN>
Original-Sender: "Debbugs-submit" <debbugs-submit-bounces <at> debbugs.gnu.org>
Resent-CC: bug-gnu-emacs@HIDDEN
Resent-Date: Fri, 07 Nov 2025 12:39:01 +0000
Resent-Message-ID: <handler.79782.B.176251913421980 <at> debbugs.gnu.org>
Resent-Sender: help-debbugs@HIDDEN
To: 79782 <at> debbugs.gnu.org
From: Gerd =?UTF-8?Q?M=C3=B6llmann?= <gerd.moellmann@HIDDEN>
Date: Fri, 07 Nov 2025 13:38:36 +0100
Message-ID: <m2a50ynhkj.fsf@HIDDEN>
MIME-Version: 1.0
Content-Type: text/plain
Received-SPF: pass client-ip=2a00:1450:4864:20::52f;
 envelope-from=gerd.moellmann@HIDDEN; helo=mail-ed1-x52f.google.com
X-Spam_score_int: -20
X-Spam_score: -2.1
X-Spam_bar: --
X-Spam_report: (-2.1 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1,
 DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, FREEMAIL_FROM=0.001,
 RCVD_IN_DNSWL_NONE=-0.0001, SPF_HELO_NONE=0.001,
 SPF_PASS=-0.001 autolearn=ham autolearn_force=no
X-Spam_action: no action
X-Spam-Score: 1.0 (+)
X-BeenThere: debbugs-submit <at> debbugs.gnu.org
X-Mailman-Version: 2.1.18
Precedence: list
List-Id: <debbugs-submit.debbugs.gnu.org>
List-Unsubscribe: <https://debbugs.gnu.org/cgi-bin/mailman/options/debbugs-submit>, 
 <mailto:debbugs-submit-request <at> debbugs.gnu.org?subject=unsubscribe>
List-Archive: <https://debbugs.gnu.org/cgi-bin/mailman/private/debbugs-submit/>
List-Post: <mailto:debbugs-submit <at> debbugs.gnu.org>
List-Help: <mailto:debbugs-submit-request <at> debbugs.gnu.org?subject=help>
List-Subscribe: <https://debbugs.gnu.org/cgi-bin/mailman/listinfo/debbugs-submit>, 
 <mailto:debbugs-submit-request <at> debbugs.gnu.org?subject=subscribe>
Errors-To: debbugs-submit-bounces <at> debbugs.gnu.org
Sender: "Debbugs-submit" <debbugs-submit-bounces <at> debbugs.gnu.org>
X-Spam-Score: -0.0 (/)

To reproduce, in an Emacs build with native compilation

- emacs -Q
- C-x C-f <repo>/lisp/emacs-lisp/comp.el RET
- M-x emacs-lisp-native-compile RET

The command does not complete. If one evaluates the buffer first, then
M-x toggle-debug-on-quit, and C-g, one can see that it is stuck
somewhere in the native compiler.

In GNU Emacs 31.0.50 (build 1, aarch64-apple-darwin25.1.0, NS
 appkit-2685.20 Version 26.1 (Build 25B78)) of 2025-11-07 built on pro4
Repository revision: be527b570465dad453f5aebba3c552f14ec98e2b
Repository branch: master
System Description:  macOS 26.1

Configured using:
 'configure --with-native-compilation --with-ns CC=clang
 'CFLAGS=-Wgnu-imaginary-constant -Wunused-result -g
 -Wno-ignored-attributes -Wno-flag-enum -Wno-missing-method-return-type
 -Wno-variadic-macros -Wno-strict-prototypes -Wno-availability
 -Wno-nullability-completeness -g -O2' --cache-file
 /var/folders/1d/k_6t25f94sl83szqbf8gpkrh0000gn/T//config.cache.master'

Message sent:

Content-Disposition: inline
Content-Transfer-Encoding: quoted-printable
MIME-Version: 1.0
X-Mailer: MIME-tools 5.505 (Entity 5.505)
Content-Type: text/plain; charset=utf-8
X-Loop: help-debbugs@HIDDEN
From: help-debbugs@HIDDEN (GNU bug Tracking System)
To: Gerd =?UTF-8?Q?M=C3=B6llmann?= <gerd.moellmann@HIDDEN>
Subject: bug#79782: Acknowledgement (31.0.50; M-x emacs-lisp-native-compile
 does not complete)
Message-ID: <handler.79782.B.176251913421980.ack <at> debbugs.gnu.org>
References: <m2a50ynhkj.fsf@HIDDEN>
X-Gnu-PR-Message: ack 79782
X-Gnu-PR-Package: emacs
Reply-To: 79782 <at> debbugs.gnu.org
Date: Fri, 07 Nov 2025 12:39:02 +0000

Thank you for filing a new bug report with debbugs.gnu.org.

This is an automatically generated reply to let you know your message
has been received.

Your message is being forwarded to the package maintainers and other
interested parties for their attention; they will reply in due course.

Your message has been sent to the package maintainer(s):
 bug-gnu-emacs@HIDDEN

If you wish to submit further information on this problem, please
send it to 79782 <at> debbugs.gnu.org.

Please do not send mail to help-debbugs@HIDDEN unless you wish
to report a problem with the Bug-tracking system.

--=20
79782: https://debbugs.gnu.org/cgi/bugreport.cgi?bug=3D79782
GNU Bug Tracking System
Contact help-debbugs@HIDDEN with problems

Message sent to bug-gnu-emacs@HIDDEN:

Subject: bug#79782: 31.0.50; M-x emacs-lisp-native-compile does not complete
Resent-From: Gerd =?UTF-8?Q?M=C3=B6llmann?= <gerd.moellmann@HIDDEN>
Original-Sender: "Debbugs-submit" <debbugs-submit-bounces <at> debbugs.gnu.org>
Resent-CC: bug-gnu-emacs@HIDDEN
Resent-Date: Fri, 07 Nov 2025 15:43:02 +0000
Resent-Message-ID: <handler.79782.B79782.176253014418870 <at> debbugs.gnu.org>
Resent-Sender: help-debbugs@HIDDEN
To: 79782 <at> debbugs.gnu.org
From: Gerd =?UTF-8?Q?M=C3=B6llmann?= <gerd.moellmann@HIDDEN>
In-Reply-To: <m2a50ynhkj.fsf@HIDDEN>
References: <m2a50ynhkj.fsf@HIDDEN>
Date: Fri, 07 Nov 2025 16:42:10 +0100
Message-ID: <m2wm41onn1.fsf@HIDDEN>
User-Agent: Gnus/5.13 (Gnus v5.13)
MIME-Version: 1.0
Content-Type: text/plain; charset=utf-8
Content-Transfer-Encoding: quoted-printable
Precedence: list
Errors-To: debbugs-submit-bounces <at> debbugs.gnu.org
Sender: "Debbugs-submit" <debbugs-submit-bounces <at> debbugs.gnu.org>

Gerd M=C3=B6llmann <gerd.moellmann@HIDDEN> writes:

> To reproduce, in an Emacs build with native compilation
>
> - emacs -Q
> - C-x C-f <repo>/lisp/emacs-lisp/comp.el RET
> - M-x emacs-lisp-native-compile RET
>
> The command does not complete. If one evaluates the buffer first, then
> M-x toggle-debug-on-quit, and C-g, one can see that it is stuck
> somewhere in the native compiler.
>
> In GNU Emacs 31.0.50 (build 1, aarch64-apple-darwin25.1.0, NS
>  appkit-2685.20 Version 26.1 (Build 25B78)) of 2025-11-07 built on pro4
> Repository revision: be527b570465dad453f5aebba3c552f14ec98e2b
> Repository branch: master
> System Description:  macOS 26.1
>
> Configured using:
>  'configure --with-native-compilation --with-ns CC=3Dclang
>  'CFLAGS=3D-Wgnu-imaginary-constant -Wunused-result -g
>  -Wno-ignored-attributes -Wno-flag-enum -Wno-missing-method-return-type
>  -Wno-variadic-macros -Wno-strict-prototypes -Wno-availability
>  -Wno-nullability-completeness -g -O2' --cache-file
>  /var/folders/1d/k_6t25f94sl83szqbf8gpkrh0000gn/T//config.cache.master'

I went 3 years back for bisecting, but could not find a working good
commit, sorry.

Message sent to bug-gnu-emacs@HIDDEN:

Subject: bug#79782: 31.0.50; M-x emacs-lisp-native-compile does not complete
Resent-From: Gerd =?UTF-8?Q?M=C3=B6llmann?= <gerd.moellmann@HIDDEN>
Original-Sender: "Debbugs-submit" <debbugs-submit-bounces <at> debbugs.gnu.org>
Resent-CC: bug-gnu-emacs@HIDDEN
Resent-Date: Fri, 07 Nov 2025 15:54:01 +0000
Resent-Message-ID: <handler.79782.B79782.176253079720396 <at> debbugs.gnu.org>
Resent-Sender: help-debbugs@HIDDEN
To: 79782 <at> debbugs.gnu.org
From: Gerd =?UTF-8?Q?M=C3=B6llmann?= <gerd.moellmann@HIDDEN>
In-Reply-To: <m2wm41onn1.fsf@HIDDEN>
References: <m2a50ynhkj.fsf@HIDDEN> <m2wm41onn1.fsf@HIDDEN>
Date: Fri, 07 Nov 2025 16:53:02 +0100
Message-ID: <m2tsz5on4x.fsf@HIDDEN>
User-Agent: Gnus/5.13 (Gnus v5.13)
MIME-Version: 1.0
Content-Type: text/plain; charset=utf-8
Content-Transfer-Encoding: quoted-printable
Precedence: list
Errors-To: debbugs-submit-bounces <at> debbugs.gnu.org
Sender: "Debbugs-submit" <debbugs-submit-bounces <at> debbugs.gnu.org>

Gerd M=C3=B6llmann <gerd.moellmann@HIDDEN> writes:

> Gerd M=C3=B6llmann <gerd.moellmann@HIDDEN> writes:
>
>> To reproduce, in an Emacs build with native compilation
>>
>> - emacs -Q
>> - C-x C-f <repo>/lisp/emacs-lisp/comp.el RET
>> - M-x emacs-lisp-native-compile RET
>>
>> The command does not complete. If one evaluates the buffer first, then
>> M-x toggle-debug-on-quit, and C-g, one can see that it is stuck
>> somewhere in the native compiler.
>>
>> In GNU Emacs 31.0.50 (build 1, aarch64-apple-darwin25.1.0, NS
>>  appkit-2685.20 Version 26.1 (Build 25B78)) of 2025-11-07 built on pro4
>> Repository revision: be527b570465dad453f5aebba3c552f14ec98e2b
>> Repository branch: master
>> System Description:  macOS 26.1
>>
>> Configured using:
>>  'configure --with-native-compilation --with-ns CC=3Dclang
>>  'CFLAGS=3D-Wgnu-imaginary-constant -Wunused-result -g
>>  -Wno-ignored-attributes -Wno-flag-enum -Wno-missing-method-return-type
>>  -Wno-variadic-macros -Wno-strict-prototypes -Wno-availability
>>  -Wno-nullability-completeness -g -O2' --cache-file
>>  /var/folders/1d/k_6t25f94sl83szqbf8gpkrh0000gn/T//config.cache.master'
>
> I went 3 years back for bisecting, but could not find a working good
> commit, sorry.

Many samples taken with macOS' Activity Monitor like this:

Call graph:
    867 Thread_4055222   DispatchQueue_1: com.apple.main-thread  (serial)
      867 start  (in dyld) + 7184  [0x19e161d54]
        867 main  (in emacs) + 8008  [0x104db18c0]  emacs.c:2629
          867 Frecursive_edit  (in emacs) + 368  [0x104db2a70]  keyboard.c:=
832
            867 recursive_edit_1  (in emacs) + 164  [0x104db2718]  keyboard=
.c:749
              867 command_loop  (in emacs) + 268  [0x104db28c8]  keyboard.c=
:1141
                867 internal_catch  (in emacs) + 256  [0x104e3a788]  eval.c=
:1370
                  867 command_loop_2  (in emacs) + 52  [0x104db30b0]  keybo=
ard.c:1163
                    867 internal_condition_case  (in emacs) + 260  [0x104e3=
b1c8]  eval.c:1690
                      867 command_loop_1  (in emacs) + 828  [0x104db3400]  =
keyboard.c:1424
                        867 read_key_sequence  (in emacs) + 1380  [0x104db4=
de0]  keyboard.c:11146
                          867 read_char  (in emacs) + 6340  [0x104db81a8]  =
keyboard.c:3020
                            867 wait_reading_process_output  (in emacs) + 4=
200  [0x104e9a200]  process.c:5810
                              867 thread_select  (in emacs) + 84  [0x104ebd=
624]  thread.c:659
                                867 really_call_select  (in emacs) + 88  [0=
x104ebd6b0]  thread.c:624
                                  867 pselect$DARWIN_EXTSN  (in libsystem_k=
ernel.dylib) + 64  [0x19e4ecf94]
                                    867 __pselect  (in libsystem_kernel.dyl=
ib) + 8  [0x19e4ed0bc]

Message sent to bug-gnu-emacs@HIDDEN:

X-Loop: help-debbugs@HIDDEN
Subject: bug#79782: 31.0.50; M-x emacs-lisp-native-compile does not complete
Resent-From: Pip Cet <pipcet@HIDDEN>
Original-Sender: "Debbugs-submit" <debbugs-submit-bounces <at> debbugs.gnu.org>
Resent-CC: bug-gnu-emacs@HIDDEN
Resent-Date: Fri, 07 Nov 2025 17:39:01 +0000
Resent-Message-ID: <handler.79782.B79782.176253710826283 <at> debbugs.gnu.org>
Resent-Sender: help-debbugs@HIDDEN
X-GNU-PR-Message: followup 79782
X-GNU-PR-Package: emacs
X-GNU-PR-Keywords: 
To: Gerd =?UTF-8?Q?M=C3=B6llmann?= <gerd.moellmann@HIDDEN>
Cc: 79782 <at> debbugs.gnu.org
Received: via spool by 79782-submit <at> debbugs.gnu.org id=B79782.176253710826283
          (code B ref 79782); Fri, 07 Nov 2025 17:39:01 +0000
Received: (at 79782) by debbugs.gnu.org; 7 Nov 2025 17:38:28 +0000
Received: from localhost ([127.0.0.1]:47271 helo=debbugs.gnu.org)
	by debbugs.gnu.org with esmtp (Exim 4.84_2)
	(envelope-from <debbugs-submit-bounces <at> debbugs.gnu.org>)
	id 1vHQPr-0006pr-Gh
	for submit <at> debbugs.gnu.org; Fri, 07 Nov 2025 12:38:27 -0500
Received: from mail-4322.protonmail.ch ([185.70.43.22]:56639)
 by debbugs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256)
 (Exim 4.84_2) (envelope-from <pipcet@HIDDEN>)
 id 1vHQPp-0006pS-2w
 for 79782 <at> debbugs.gnu.org; Fri, 07 Nov 2025 12:38:26 -0500
DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=protonmail.com;
 s=protonmail3; t=1762537097; x=1762796297;
 bh=44f7vrm9vPG8a/IBVroiO47HZJZXJGgdIrX8dKx7OSI=;
 h=Date:To:From:Cc:Subject:Message-ID:In-Reply-To:References:
 Feedback-ID:From:To:Cc:Date:Subject:Reply-To:Feedback-ID:
 Message-ID:BIMI-Selector;
 b=PdkhaYHIl0Gx2J/YpRq5bOVaHKON3NYe4X+CCqgvV22iL86NORRzlLIPsp8kMy/iP
 dDXtkoZ69dTZi5/9yMZQw4lqALFpc8NTYeHvj3scxgKQXtZgYd9FYgdVejGbaTcTVr
 bECVDq+M3ZSHta3Ug5cbVps6ruVNqYXUFCRUUkeazVmFyExh6OMIXqfl6qxX3fCSy8
 2N9WSoN9hFn2p4afPNjAQ4Ml13wgnAoqLV/WybY302Q4Cd4ypw1ydizxxafUm7aORX
 74gD/emrnEu9rcNIM/EMijK1E9t6d6MaiMv7zwEYden8liI24u9DJh6eti4aAFwI8c
 b7gu8BdlQE91A==
Date: Fri, 07 Nov 2025 17:38:14 +0000
From: Pip Cet <pipcet@HIDDEN>
Message-ID: <87ikfl216m.fsf@HIDDEN>
In-Reply-To: <m2tsz5on4x.fsf@HIDDEN>
References: <m2a50ynhkj.fsf@HIDDEN> <m2wm41onn1.fsf@HIDDEN>
 <m2tsz5on4x.fsf@HIDDEN>
Feedback-ID: 112775352:user:proton
X-Pm-Message-ID: 5d9bcbe4ffaa39de5c28024d6c5a6647173acc81
MIME-Version: 1.0
Content-Type: text/plain; charset=utf-8
Content-Transfer-Encoding: quoted-printable
X-Spam-Score: 0.0 (/)
X-BeenThere: debbugs-submit <at> debbugs.gnu.org
X-Mailman-Version: 2.1.18
Precedence: list
List-Id: <debbugs-submit.debbugs.gnu.org>
List-Unsubscribe: <https://debbugs.gnu.org/cgi-bin/mailman/options/debbugs-submit>, 
 <mailto:debbugs-submit-request <at> debbugs.gnu.org?subject=unsubscribe>
List-Archive: <https://debbugs.gnu.org/cgi-bin/mailman/private/debbugs-submit/>
List-Post: <mailto:debbugs-submit <at> debbugs.gnu.org>
List-Help: <mailto:debbugs-submit-request <at> debbugs.gnu.org?subject=help>
List-Subscribe: <https://debbugs.gnu.org/cgi-bin/mailman/listinfo/debbugs-submit>, 
 <mailto:debbugs-submit-request <at> debbugs.gnu.org?subject=subscribe>
Errors-To: debbugs-submit-bounces <at> debbugs.gnu.org
Sender: "Debbugs-submit" <debbugs-submit-bounces <at> debbugs.gnu.org>
X-Spam-Score: -1.0 (-)

Gerd M=C3=B6llmann <gerd.moellmann@HIDDEN> writes:

> Gerd M=C3=B6llmann <gerd.moellmann@HIDDEN> writes:
>
>> Gerd M=C3=B6llmann <gerd.moellmann@HIDDEN> writes:
>>
>>> To reproduce, in an Emacs build with native compilation
>>>
>>> - emacs -Q
>>> - C-x C-f <repo>/lisp/emacs-lisp/comp.el RET
>>> - M-x emacs-lisp-native-compile RET
>>>
>>> The command does not complete. If one evaluates the buffer first, then
>>> M-x toggle-debug-on-quit, and C-g, one can see that it is stuck
>>> somewhere in the native compiler.
>>>
>>> In GNU Emacs 31.0.50 (build 1, aarch64-apple-darwin25.1.0, NS
>>>  appkit-2685.20 Version 26.1 (Build 25B78)) of 2025-11-07 built on pro4
>>> Repository revision: be527b570465dad453f5aebba3c552f14ec98e2b
>>> Repository branch: master
>>> System Description:  macOS 26.1
>>>
>>> Configured using:
>>>  'configure --with-native-compilation --with-ns CC=3Dclang
>>>  'CFLAGS=3D-Wgnu-imaginary-constant -Wunused-result -g
>>>  -Wno-ignored-attributes -Wno-flag-enum -Wno-missing-method-return-type
>>>  -Wno-variadic-macros -Wno-strict-prototypes -Wno-availability
>>>  -Wno-nullability-completeness -g -O2' --cache-file
>>>  /var/folders/1d/k_6t25f94sl83szqbf8gpkrh0000gn/T//config.cache.master'
>>
>> I went 3 years back for bisecting, but could not find a working good
>> commit, sorry.
>
> Many samples taken with macOS' Activity Monitor like this:
>
> Call graph:
>     867 Thread_4055222   DispatchQueue_1: com.apple.main-thread  (serial)
>       867 start  (in dyld) + 7184  [0x19e161d54]
>         867 main  (in emacs) + 8008  [0x104db18c0]  emacs.c:2629
>           867 Frecursive_edit  (in emacs) + 368  [0x104db2a70]  keyboard.=
c:832
>             867 recursive_edit_1  (in emacs) + 164  [0x104db2718]  keyboa=
rd.c:749
>               867 command_loop  (in emacs) + 268  [0x104db28c8]  keyboard=
.c:1141
>                 867 internal_catch  (in emacs) + 256  [0x104e3a788]  eval=
.c:1370
>                   867 command_loop_2  (in emacs) + 52  [0x104db30b0]  key=
board.c:1163
>                     867 internal_condition_case  (in emacs) + 260  [0x104=
e3b1c8]  eval.c:1690
>                       867 command_loop_1  (in emacs) + 828  [0x104db3400]=
  keyboard.c:1424
>                         867 read_key_sequence  (in emacs) + 1380  [0x104d=
b4de0]  keyboard.c:11146
>                           867 read_char  (in emacs) + 6340  [0x104db81a8]=
  keyboard.c:3020
>                             867 wait_reading_process_output  (in emacs) +=
 4200  [0x104e9a200]  process.c:5810
>                               867 thread_select  (in emacs) + 84  [0x104e=
bd624]  thread.c:659
>                                 867 really_call_select  (in emacs) + 88  =
[0x104ebd6b0]  thread.c:624
>                                   867 pselect$DARWIN_EXTSN  (in libsystem=
_kernel.dylib) + 64  [0x19e4ecf94]
>                                     867 __pselect  (in libsystem_kernel.d=
ylib) + 8  [0x19e4ed0bc]

That's the main process; the idea is that there will be a child process
which does the actual compilation.

How long did you wait? Over here, after some phenomenally deep recursion
in Flread__substitute_object_in_subtree, the compilation appears to make
(very, very slow) progress.

The problem is we're reading a very large very circular object and the
reader isn't really prepared for that. It's about 13 MB and involves
about 100000 #N# substitutions.

Please give this at least an hour so we know whether it's just very slow
or actually doesn't work at all.

Pip

Message sent to bug-gnu-emacs@HIDDEN:

X-Loop: help-debbugs@HIDDEN
Subject: bug#79782: 31.0.50; M-x emacs-lisp-native-compile does not complete
Resent-From: Gerd =?UTF-8?Q?M=C3=B6llmann?= <gerd.moellmann@HIDDEN>
Original-Sender: "Debbugs-submit" <debbugs-submit-bounces <at> debbugs.gnu.org>
Resent-CC: bug-gnu-emacs@HIDDEN
Resent-Date: Fri, 07 Nov 2025 18:10:02 +0000
Resent-Message-ID: <handler.79782.B79782.176253895630313 <at> debbugs.gnu.org>
Resent-Sender: help-debbugs@HIDDEN
X-GNU-PR-Message: followup 79782
X-GNU-PR-Package: emacs
X-GNU-PR-Keywords: 
To: Pip Cet <pipcet@HIDDEN>
Cc: 79782 <at> debbugs.gnu.org
Received: via spool by 79782-submit <at> debbugs.gnu.org id=B79782.176253895630313
          (code B ref 79782); Fri, 07 Nov 2025 18:10:02 +0000
Received: (at 79782) by debbugs.gnu.org; 7 Nov 2025 18:09:16 +0000
Received: from localhost ([127.0.0.1]:47430 helo=debbugs.gnu.org)
	by debbugs.gnu.org with esmtp (Exim 4.84_2)
	(envelope-from <debbugs-submit-bounces <at> debbugs.gnu.org>)
	id 1vHQtf-0007sr-HC
	for submit <at> debbugs.gnu.org; Fri, 07 Nov 2025 13:09:16 -0500
Received: from mail-wm1-x32b.google.com ([2a00:1450:4864:20::32b]:58635)
 by debbugs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_128_GCM_SHA256:128)
 (Exim 4.84_2) (envelope-from <gerd.moellmann@HIDDEN>)
 id 1vHQtd-0007sj-4f
 for 79782 <at> debbugs.gnu.org; Fri, 07 Nov 2025 13:09:14 -0500
Received: by mail-wm1-x32b.google.com with SMTP id
 5b1f17b1804b1-4775638d819so6157765e9.1
 for <79782 <at> debbugs.gnu.org>; Fri, 07 Nov 2025 10:09:13 -0800 (PST)
DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed;
 d=gmail.com; s=20230601; t=1762538946; x=1763143746; darn=debbugs.gnu.org;
 h=content-transfer-encoding:mime-version:user-agent:message-id:date
 :references:in-reply-to:subject:cc:to:from:from:to:cc:subject:date
 :message-id:reply-to;
 bh=bJhhyHhMYUXK/9lKFatqLkoJyUpghh9x9T1BRj1sD2w=;
 b=E2XaOOQk3Jg3XBeulrKFP3bmJb10iJVHqJGfvoEV5i/0val7Rdg++6DEkXzPk+G1u0
 vJarAcYm2hU+kxRvU4gwyRWNTAhz4HsHYrMDLcAYcNgHKTgsBSMdNLMtChFS0ektRWy6
 HPJtKnSIbpZAGVjfPZnXk9OQA6OPGmJll1poNt4b7NgxMkanNHVEv6N5ZiQqbXbYzDjG
 eTfWaFPPfHWTVEcaykorE0OQquAM/nortclVc1Xd52tGzLRMqMofgqs5aI6ch+Z62a09
 CcphvAbaHfkL2vosFb4tegKcbq4uchr42tLKmbUB9/LWC5ZRrgjHAQ3GiJjj/VBtmwcP
 CEZg==
X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed;
 d=1e100.net; s=20230601; t=1762538946; x=1763143746;
 h=content-transfer-encoding:mime-version:user-agent:message-id:date
 :references:in-reply-to:subject:cc:to:from:x-gm-gg
 :x-gm-message-state:from:to:cc:subject:date:message-id:reply-to;
 bh=bJhhyHhMYUXK/9lKFatqLkoJyUpghh9x9T1BRj1sD2w=;
 b=Sp9D4myILht5ijMXowxsXa937bVnHlDSegveyNa3mvh4W5ZewN2o9C6T72y2jF3lCI
 X4plOx2Tl2F6zGH4tPFzauc1T0oyrpufe4x8ofA93cQ90sofwPkykEDzbgRe64hNB4LY
 82fO1QZkSNMAFjPiicm0cofqQsXuB6q1a/YEgIvflUnuPSum2pogkQ5xpM0juJx4rXmX
 Z26b/CMGOAHVOzaRVZMyNoP8hpFbVPG/NLJpSnIjcy7Fky+6iuLjPH9tf8fVbi6Af6hT
 dsMkN9VhJwWCjPcBe4qYJILS75j7Z6kUI/Ybs3AcuYVF8WBu5PBg0Sac5vcM9iprI4Ys
 /CoA==
X-Gm-Message-State: AOJu0YzICerBFSim2CNQeXHBB6PhMYQYWsjDgqZQj+aKuHfoghX0lDZy
 GsrFRX+CGYOR3pZ8l8xwjDnjrbU2ZURzMdZLjgn+R8bOA4FbdHujtjpgucZvMeeF
X-Gm-Gg: ASbGncv2Vz9oMLAMRfi9cLBjJkvUDklpulun+OGhnKm9fAl2anmzgeGZ9cj5UpBSmt2
 UD9qo6KZfkkjq2KuPTus8Y6No6wzLYtrJgnAhAUS6zfrwEbioaHG8LO4kzjgOSpcmGQjpvFfEpV
 LubwQUFnYVS2ZWDfY+5uoeucrP4jY6oYkSY8yDj1AuEQlS2wEy6WCBwHlYoB3HKcSLlQzB8Omhc
 9ejiN3WNOaDolUnqrMVzsevxLfBONc3vrxLU1EqiMMApk8PdxKhtCn+rskKEzGPGJcKAhQKWoZf
 9LA8HUJPBRBa2nWENP0tEFv//UY3B6VAplE21NmiFD7UMIEK7cqwBOH5927hvPDHMtvClPY92Y+
 hZzaX+6WJv0mmjacZx1IlrATfROCrmiqg6xlljOZTO/hs2SglDtZfu1UCAbJwo3AZvwloWHN4Qg
 dHkAjGARo6pqcfZvCtyHxZ7aD5g6lYNJXWi2EKdtvbla4yUcFuyZ9g1HfYJduMY9XcssnM/4dp+
 AXIBI4jmZsT
X-Google-Smtp-Source: AGHT+IFkw4Mu3PJKsGAph0avdy2QovlVlhVsVSWcR0FY4tE7bKhHHg2ZjcwX0TjvtFQyQwyv6u+vjg==
X-Received: by 2002:a05:600c:4695:b0:477:54cd:202f with SMTP id
 5b1f17b1804b1-4776bc86533mr33371745e9.3.1762538946346; 
 Fri, 07 Nov 2025 10:09:06 -0800 (PST)
Received: from pro4 (p200300e0b7103700b9dd3d7a9e7f9444.dip0.t-ipconnect.de.
 [2003:e0:b710:3700:b9dd:3d7a:9e7f:9444])
 by smtp.gmail.com with ESMTPSA id
 5b1f17b1804b1-47761c2fe2asm121678455e9.5.2025.11.07.10.09.05
 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256);
 Fri, 07 Nov 2025 10:09:05 -0800 (PST)
From: Gerd =?UTF-8?Q?M=C3=B6llmann?= <gerd.moellmann@HIDDEN>
In-Reply-To: <87ikfl216m.fsf@HIDDEN>
References: <m2a50ynhkj.fsf@HIDDEN> <m2wm41onn1.fsf@HIDDEN>
 <m2tsz5on4x.fsf@HIDDEN> <87ikfl216m.fsf@HIDDEN>
Date: Fri, 07 Nov 2025 19:09:04 +0100
Message-ID: <m2ms4xogu7.fsf@HIDDEN>
User-Agent: Gnus/5.13 (Gnus v5.13)
MIME-Version: 1.0
Content-Type: text/plain; charset=utf-8
Content-Transfer-Encoding: quoted-printable
X-Spam-Score: 0.0 (/)
X-BeenThere: debbugs-submit <at> debbugs.gnu.org
X-Mailman-Version: 2.1.18
Precedence: list
List-Id: <debbugs-submit.debbugs.gnu.org>
List-Unsubscribe: <https://debbugs.gnu.org/cgi-bin/mailman/options/debbugs-submit>, 
 <mailto:debbugs-submit-request <at> debbugs.gnu.org?subject=unsubscribe>
List-Archive: <https://debbugs.gnu.org/cgi-bin/mailman/private/debbugs-submit/>
List-Post: <mailto:debbugs-submit <at> debbugs.gnu.org>
List-Help: <mailto:debbugs-submit-request <at> debbugs.gnu.org?subject=help>
List-Subscribe: <https://debbugs.gnu.org/cgi-bin/mailman/listinfo/debbugs-submit>, 
 <mailto:debbugs-submit-request <at> debbugs.gnu.org?subject=subscribe>
Errors-To: debbugs-submit-bounces <at> debbugs.gnu.org
Sender: "Debbugs-submit" <debbugs-submit-bounces <at> debbugs.gnu.org>
X-Spam-Score: -1.0 (-)

Pip Cet <pipcet@HIDDEN> writes:

> Gerd M=C3=B6llmann <gerd.moellmann@HIDDEN> writes:
>
>> Gerd M=C3=B6llmann <gerd.moellmann@HIDDEN> writes:
>>
>>> Gerd M=C3=B6llmann <gerd.moellmann@HIDDEN> writes:
>>>
>>>> To reproduce, in an Emacs build with native compilation
>>>>
>>>> - emacs -Q
>>>> - C-x C-f <repo>/lisp/emacs-lisp/comp.el RET
>>>> - M-x emacs-lisp-native-compile RET
>>>>
>>>> The command does not complete. If one evaluates the buffer first, then
>>>> M-x toggle-debug-on-quit, and C-g, one can see that it is stuck
>>>> somewhere in the native compiler.
>>>>
>>>> In GNU Emacs 31.0.50 (build 1, aarch64-apple-darwin25.1.0, NS
>>>>  appkit-2685.20 Version 26.1 (Build 25B78)) of 2025-11-07 built on pro4
>>>> Repository revision: be527b570465dad453f5aebba3c552f14ec98e2b
>>>> Repository branch: master
>>>> System Description:  macOS 26.1
>>>>
>>>> Configured using:
>>>>  'configure --with-native-compilation --with-ns CC=3Dclang
>>>>  'CFLAGS=3D-Wgnu-imaginary-constant -Wunused-result -g
>>>>  -Wno-ignored-attributes -Wno-flag-enum -Wno-missing-method-return-type
>>>>  -Wno-variadic-macros -Wno-strict-prototypes -Wno-availability
>>>>  -Wno-nullability-completeness -g -O2' --cache-file
>>>>  /var/folders/1d/k_6t25f94sl83szqbf8gpkrh0000gn/T//config.cache.master'
>>>
>>> I went 3 years back for bisecting, but could not find a working good
>>> commit, sorry.
>>
>> Many samples taken with macOS' Activity Monitor like this:
>>
>> Call graph:
>>     867 Thread_4055222   DispatchQueue_1: com.apple.main-thread  (serial)
>>       867 start  (in dyld) + 7184  [0x19e161d54]
>>         867 main  (in emacs) + 8008  [0x104db18c0]  emacs.c:2629
>>           867 Frecursive_edit  (in emacs) + 368  [0x104db2a70]  keyboard=
.c:832
>>             867 recursive_edit_1  (in emacs) + 164  [0x104db2718]  keybo=
ard.c:749
>>               867 command_loop  (in emacs) + 268  [0x104db28c8]  keyboar=
d.c:1141
>>                 867 internal_catch  (in emacs) + 256  [0x104e3a788]  eva=
l.c:1370
>>                   867 command_loop_2  (in emacs) + 52  [0x104db30b0]  ke=
yboard.c:1163
>>                     867 internal_condition_case  (in emacs) + 260  [0x10=
4e3b1c8]  eval.c:1690
>>                       867 command_loop_1  (in emacs) + 828  [0x104db3400=
]  keyboard.c:1424
>>                         867 read_key_sequence  (in emacs) + 1380  [0x104=
db4de0]  keyboard.c:11146
>>                           867 read_char  (in emacs) + 6340  [0x104db81a8=
]  keyboard.c:3020
>>                             867 wait_reading_process_output  (in emacs) =
+ 4200  [0x104e9a200]  process.c:5810
>>                               867 thread_select  (in emacs) + 84  [0x104=
ebd624]  thread.c:659
>>                                 867 really_call_select  (in emacs) + 88 =
 [0x104ebd6b0]  thread.c:624
>>                                   867 pselect$DARWIN_EXTSN  (in libsyste=
m_kernel.dylib) + 64  [0x19e4ecf94]
>>                                     867 __pselect  (in libsystem_kernel.=
dylib) + 8  [0x19e4ed0bc]
>
> That's the main process; the idea is that there will be a child process
> which does the actual compilation.
>
> How long did you wait? Over here, after some phenomenally deep recursion
> in Flread__substitute_object_in_subtree, the compilation appears to make
> (very, very slow) progress.
>
How weird. I hadn't seen a second process pop up in Activity Monitor.
Now repeating that and waiting for say 10 minutes and the parent process
is responsive again.

> The problem is we're reading a very large very circular object and the
> reader isn't really prepared for that. It's about 13 MB and involves
> about 100000 #N# substitutions.

Is it something the compilation process outputs? What the heck. I would
never have expected anything like that. Not even that it does the
compilation in another process.

Anyway. Thanks, and I guess I should close this then.

Message received at control <at> debbugs.gnu.org:

Received: (at control) by debbugs.gnu.org; 7 Nov 2025 18:10:43 +0000
From debbugs-submit-bounces <at> debbugs.gnu.org Fri Nov 07 13:10:43 2025
Received: from localhost ([127.0.0.1]:47443 helo=debbugs.gnu.org)
	by debbugs.gnu.org with esmtp (Exim 4.84_2)
	(envelope-from <debbugs-submit-bounces <at> debbugs.gnu.org>)
	id 1vHQv5-00080I-Aq
	for submit <at> debbugs.gnu.org; Fri, 07 Nov 2025 13:10:43 -0500
Received: from mail-ej1-x629.google.com ([2a00:1450:4864:20::629]:54289)
 by debbugs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_128_GCM_SHA256:128)
 (Exim 4.84_2) (envelope-from <gerd.moellmann@HIDDEN>)
 id 1vHQv3-000806-63
 for control <at> debbugs.gnu.org; Fri, 07 Nov 2025 13:10:41 -0500
Received: by mail-ej1-x629.google.com with SMTP id
 a640c23a62f3a-b72cbc24637so177912666b.0
 for <control <at> debbugs.gnu.org>; Fri, 07 Nov 2025 10:10:41 -0800 (PST)
DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed;
 d=gmail.com; s=20230601; t=1762539035; x=1763143835; darn=debbugs.gnu.org;
 h=content-transfer-encoding:mime-version:subject:from:to:message-id
 :date:from:to:cc:subject:date:message-id:reply-to;
 bh=xRLAbWuy3xDCz+bE6AzCqIxZCoabhNv0E9+crtUvoW8=;
 b=dRSQFCzbcw3HZtcP7+4R0ZdRsnd/L0fe+a6wmcltgFjxmIo/zS4D08CuId5BwAWBaO
 65U8aBUYuVAfOgWMUFNQNpZliAcmrLapNGpz8Xw4uqbEOEnongJI6iBL7GXfcASM1Jbs
 a/Of6dvHhQicoE4vh7zkSLb4uMiIDSBX6D/KikzGqBWDKWUYFkI9lzZguW2WU94Dbhiw
 IHFgpsrpg3qVADgZb55ZOtKjAD4gq3hHP1u4cvqeZXEyhZpU18b7qdh3T3DVnYBi4XdJ
 ExjrN+PXBEcpt6wPCJ01vkqZbeWBgJsdrgGU54qpmf+tc5oCmVqOZnYk6frCUDiuE3vU
 nQfQ==
X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed;
 d=1e100.net; s=20230601; t=1762539035; x=1763143835;
 h=content-transfer-encoding:mime-version:subject:from:to:message-id
 :date:x-gm-gg:x-gm-message-state:from:to:cc:subject:date:message-id
 :reply-to;
 bh=xRLAbWuy3xDCz+bE6AzCqIxZCoabhNv0E9+crtUvoW8=;
 b=LDTLbc8QMMI3EfoaWcdFPDHKHvFfwfeahLVsNYlOoj3Dv5uhRahUPTPIs4L4bRJMGk
 q6lf6F3rdQsxfBmSqVyQQr49WKjqvkxmtCXeigReRjwcPR5nata88iTMLIEOiXBzAKu2
 a041sNm7SwYkDcVe/by4SzlJsoXFDrcn6ASKXre6oWzOvX4ZykSp6o5xWJyu5OIX4N/j
 exdhNhqMfHFdA/EWL3pqyOfNm3tAlNF1v6EtiMEZGYlewJrFit2WEGjRYz/cbvWC+rSv
 YYX8rIB0tsqTHYMGElVa28xzwcj8a9WKlBHPtZ0bQ0dYEEV+d8ERrvKZ23a78rSfd+N/
 NS7A==
X-Gm-Message-State: AOJu0YwepGz7i0lKf1FvOcz8DxftSj5SLMrAOZkoevZwTKFqZCP5fijn
 GYsSACFfSC6mNZstzHtVhqmyJ+39eeNrs3MFt47g6hW0N7uWOtgE6YUMq168tfLO
X-Gm-Gg: ASbGncuHsccZt8hdKiHW+DMmM3WAwD93DOClyv7U1VR2KK0CthO0tUAQ56hqsHWI3n4
 bmfw9waVUeB7Dtx939Bu3DJBzhbjRQ5qXqSv6W2SDvvzQO45eFJMVhqfwSFsg4VoU3KuDJvWjtD
 9tprsB2wzGqvqxCZlx0KlDxhhqP1QpH8sJJ5K4SoeYmOklkaaz9Wi6GMcOfM4x3qeVz//xZvs7D
 trUggEEZB1z1GDrXlWq3Rg6pBOzAnrAbfEWpb/dZJriQ+rj+GiJBJ8plQaVQfs1GWAbraS2Mf/G
 I/tgNGAT0umBHNTDqhfXssrEjjqzRbMZj5z3KKL+FA9jGL19dZIzzc7WT/KvbpP6nQUfXTSBqHa
 BIIHnRbYJcCX6TNPZn79YslfSOC0Andjp+3ZMOetQRSPAKB7e42ygMeqkxKiXzAvYxmjvhLAa4Q
 DMXbuVTbQs31C24NyOgGR/mqZU6iDnwZtdr8GMUD3x2gYlGzmRpkLfF2egyG2o6rpBCaHnDNe7q
 Rn7obf8FpQz
X-Google-Smtp-Source: AGHT+IGvyMzTcK4CBgv+n4I/gIaBH7QUlT7ji5DQ/CAmM6n0Dsgdh8JBbdcyyewYo0fYTovv+Ht3xA==
X-Received: by 2002:a17:906:730e:b0:b70:b7f8:868f with SMTP id
 a640c23a62f3a-b72e036bbebmr21894466b.27.1762539034525; 
 Fri, 07 Nov 2025 10:10:34 -0800 (PST)
Received: from pro4 (p200300e0b7103700b9dd3d7a9e7f9444.dip0.t-ipconnect.de.
 [2003:e0:b710:3700:b9dd:3d7a:9e7f:9444])
 by smtp.gmail.com with ESMTPSA id
 a640c23a62f3a-b72dbe7c783sm67661466b.50.2025.11.07.10.10.33
 for <control <at> debbugs.gnu.org>
 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256);
 Fri, 07 Nov 2025 10:10:34 -0800 (PST)
Date: Fri, 07 Nov 2025 19:10:30 +0100
Message-Id: <m2ldkhogrt.fsf@HIDDEN>
To: control <at> debbugs.gnu.org
From: =?utf-8?Q?Gerd_M=C3=B6llmann?= <gerd.moellmann@HIDDEN>
Subject: control message for bug #79782
MIME-version: 1.0
Content-type: text/plain; charset=utf-8
Content-Transfer-Encoding: 8bit
X-Spam-Score: 0.0 (/)
X-Debbugs-Envelope-To: control
X-BeenThere: debbugs-submit <at> debbugs.gnu.org
X-Mailman-Version: 2.1.18
Precedence: list
List-Id: <debbugs-submit.debbugs.gnu.org>
List-Unsubscribe: <https://debbugs.gnu.org/cgi-bin/mailman/options/debbugs-submit>, 
 <mailto:debbugs-submit-request <at> debbugs.gnu.org?subject=unsubscribe>
List-Archive: <https://debbugs.gnu.org/cgi-bin/mailman/private/debbugs-submit/>
List-Post: <mailto:debbugs-submit <at> debbugs.gnu.org>
List-Help: <mailto:debbugs-submit-request <at> debbugs.gnu.org?subject=help>
List-Subscribe: <https://debbugs.gnu.org/cgi-bin/mailman/listinfo/debbugs-submit>, 
 <mailto:debbugs-submit-request <at> debbugs.gnu.org?subject=subscribe>
Errors-To: debbugs-submit-bounces <at> debbugs.gnu.org
Sender: "Debbugs-submit" <debbugs-submit-bounces <at> debbugs.gnu.org>
X-Spam-Score: -1.0 (-)

close 79782 31.1
quit

Last modified: Fri, 7 Nov 2025 18:15:01 UTC

GNU bug tracking system
Copyright (C) 1999 Darren O. Benham, 1997 nCipher Corporation Ltd, 1994-97 Ian Jackson.