GNU bug report logs - #80411
lisp/emacs-lisp/benchmark-tests.el failure without native compilation

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Package: emacs; Reported by: Paul Eggert <eggert@HIDDEN>; dated Sun, 15 Feb 2026 21:37:02 UTC; Maintainer for emacs is bug-gnu-emacs@HIDDEN.

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From: Michael Albinus <michael.albinus@HIDDEN>
To: Eli Zaretskii <eliz@HIDDEN>
Subject: Re: bug#80411: lisp/emacs-lisp/benchmark-tests.el failure without
 native compilation
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Eli Zaretskii <eliz@HIDDEN> writes:

Hi,

>> I reproduced the problem on Fedora 43 x86-64 with a vanilla 64-bit buil=
d=20
>> without native compilation, i.e., with "./configure=20
>> --without-native-compilation && make check". See attached copy of=20
>> test/lisp/emacs-lisp/benchmark-tests.log.
>>=20
>> Can you reproduce the problem if you configure and run in a similar way=
=20
>> on your platform?
>
> I'm not Michael, but I cannot reproduce this in a GNU/Linux build
> configured --without-native-compilation.  I type "make check" and
> this particular test succeeds (as do all the rest).

Same here, all tests succeed. I'm also on Fedora 43 x86-64.

Best regards, Michael.




Information forwarded to bug-gnu-emacs@HIDDEN:
bug#80411; Package emacs. Full text available.

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Date: Thu, 19 Feb 2026 11:40:47 +0200
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From: Eli Zaretskii <eliz@HIDDEN>
To: Paul Eggert <eggert@HIDDEN>
In-Reply-To: <3ab99ed6-5dcd-46fe-a770-4035aac56d73@HIDDEN> (message from
 Paul Eggert on Wed, 18 Feb 2026 14:44:55 -0800)
Subject: Re: bug#80411: lisp/emacs-lisp/benchmark-tests.el failure without
 native compilation
References: <6bbe73ae-c986-457b-b9bc-584b274da1dc@HIDDEN>
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> Date: Wed, 18 Feb 2026 14:44:55 -0800
> Cc: 80411 <at> debbugs.gnu.org
> From: Paul Eggert <eggert@HIDDEN>
> 
> On 2026-02-16 06:15, Michael Albinus wrote:
> > So debugging is needed, what has triggered the error message. I cannot
> > see something related in test/lisp/emacs-lisp/benchmark-tests.el, 'though.
> 
> I reproduced the problem on Fedora 43 x86-64 with a vanilla 64-bit build 
> without native compilation, i.e., with "./configure 
> --without-native-compilation && make check". See attached copy of 
> test/lisp/emacs-lisp/benchmark-tests.log.
> 
> Can you reproduce the problem if you configure and run in a similar way 
> on your platform?

I'm not Michael, but I cannot reproduce this in a GNU/Linux build
configured --without-native-compilation.  I type "make check" and
this particular test succeeds (as do all the rest).

> Curiously, I do not reproduce the problem if I later run "make -C test 
> lisp/emacs-lisp/benchmark-tests.log".

Are you saying that just the first "make check" immediately after the
build fails, or are you saying that any "make check" fails for you
while "make -C test lisp/emacs-lisp/benchmark-tests.log" succeeds?

Anyway, I think the key to this puzzle is in the
benchmark-run-compiled macro: something there decides your build
supports native compilation and attempts to invoke native-compile.  My
suggestion is to add some debugging printouts to that macro to figure
out what goes wrong.  One possibility is that some stale build
artifact somewhere gets in the way.




Information forwarded to bug-gnu-emacs@HIDDEN:
bug#80411; Package emacs. Full text available.

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On 2026-02-16 06:15, Michael Albinus wrote:
> So debugging is needed, what has triggered the error message. I cannot
> see something related in test/lisp/emacs-lisp/benchmark-tests.el, 'though.

I reproduced the problem on Fedora 43 x86-64 with a vanilla 64-bit build 
without native compilation, i.e., with "./configure 
--without-native-compilation && make check". See attached copy of 
test/lisp/emacs-lisp/benchmark-tests.log.

Can you reproduce the problem if you configure and run in a similar way 
on your platform?

Curiously, I do not reproduce the problem if I later run "make -C test 
lisp/emacs-lisp/benchmark-tests.log". Then the log file contains just 
the following, which is fine. I am not using -j and so "make" is not 
running commands all its commands in parallel. Perhaps an earlier test 
is polluting the environment for benchmark-tests, when Emacs is not 
built with native compilation.

Running 1 tests (2026-02-18 14:41:12-0800, selector `(not (or (tag 
:unstable) (tag :nativecomp)))')
Elapsed time: 0.000000s
Elapsed time: 0.000000s
Elapsed time: 0.005015s
Elapsed time: 0.000000s
    passed  1/1  benchmark-tests (0.016148 sec)

Ran 1 tests, 1 results as expected, 0 unexpected (2026-02-18 
14:41:12-0800, 0.016234 sec)

--------------xklxTQij2G8csFwoS0wDJ7yB
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bug#80411; Package emacs. Full text available.

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From: Michael Albinus <michael.albinus@HIDDEN>
To: Eli Zaretskii <eliz@HIDDEN>
Subject: Re: bug#80411: lisp/emacs-lisp/benchmark-tests.el failure without
 native compilation
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Eli Zaretskii <eliz@HIDDEN> writes:

Hi Eli,

>> In test/lisp/emacs-lisp/benchmark-tests.el, there is just
>> one test case. And there is the comment:
>>=20
>> --8<---------------cut here---------------start------------->8---
>>   ;; Avoid fork failures on Cygwin.  See bug#62450 and etc/PROBLEMS
>>   ;; ("Fork failures in a build with native compilation").
>>   (skip-when (and (eq system-type 'cygwin)
>>                   (featurep 'native-compile)))
>> --8<---------------cut here---------------end--------------->8---
>>=20
>> So perhaps we shall skip this test just for (featurep 'native-compile)?
>>=20
>> And sorry, I don't know enough about nativecomp that I could comment
>> about the problem itself.
>
> But Paul said it failed in a build _without_ native compilation.

Yes, he shows the backtrace

=2D-8<---------------cut here---------------start------------->8---
  signal(error ("Emacs was not compiled with native compiler support (
  apply(signal (error ("Emacs was not compiled with native compiler su
=2D-8<---------------cut here---------------end--------------->8---

So debugging is needed, what has triggered the error message. I cannot
see something related in test/lisp/emacs-lisp/benchmark-tests.el, 'though.

Best regards, Michael.




Information forwarded to bug-gnu-emacs@HIDDEN:
bug#80411; Package emacs. Full text available.

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Date: Mon, 16 Feb 2026 16:03:41 +0200
Message-Id: <861pikn5tu.fsf@HIDDEN>
From: Eli Zaretskii <eliz@HIDDEN>
To: Michael Albinus <michael.albinus@HIDDEN>
In-Reply-To: <874ingesp8.fsf@HIDDEN> (message from Michael Albinus on Mon, 16
 Feb 2026 14:14:27 +0100)
Subject: Re: bug#80411: lisp/emacs-lisp/benchmark-tests.el failure without
 native compilation
References: <6bbe73ae-c986-457b-b9bc-584b274da1dc@HIDDEN>
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> From: Michael Albinus <michael.albinus@HIDDEN>
> Cc: Paul Eggert <eggert@HIDDEN>,  80411 <at> debbugs.gnu.org
> Date: Mon, 16 Feb 2026 14:14:27 +0100
> 
> Eli Zaretskii <eliz@HIDDEN> writes:
> 
> Hi eli & Paul,
> 
> >> Running 'make check' on Emacs master with Ubuntu 25.10 x86-64 (but in 
> >> 32-bit mode) fails with the attached 
> >> test/lisp/emacs-lisp/benchmark-tests.log. I suppose this is because my 
> >> platform doesn't have native compilation but the benchmark's (tag 
> >> :nativecomp) doesn't test for native compilation accurately?
> >
> > I don't think so, because on my system the tests pass in a build
> > without native-compilation:
> >
> > So something else is at work here, please try to understand which code
> > signals an error in your case.
> >
> > Michael, any ideas?
> 
> In test/lisp/emacs-lisp/benchmark-tests.el, there is just
> one test case. And there is the comment:
> 
> --8<---------------cut here---------------start------------->8---
>   ;; Avoid fork failures on Cygwin.  See bug#62450 and etc/PROBLEMS
>   ;; ("Fork failures in a build with native compilation").
>   (skip-when (and (eq system-type 'cygwin)
>                   (featurep 'native-compile)))
> --8<---------------cut here---------------end--------------->8---
> 
> So perhaps we shall skip this test just for (featurep 'native-compile)?
> 
> And sorry, I don't know enough about nativecomp that I could comment
> about the problem itself.

But Paul said it failed in a build _without_ native compilation.




Information forwarded to bug-gnu-emacs@HIDDEN:
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From: Michael Albinus <michael.albinus@HIDDEN>
To: Eli Zaretskii <eliz@HIDDEN>
Subject: Re: bug#80411: lisp/emacs-lisp/benchmark-tests.el failure without
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Eli Zaretskii <eliz@HIDDEN> writes:

Hi eli & Paul,

>> Running 'make check' on Emacs master with Ubuntu 25.10 x86-64 (but in=
=20
>> 32-bit mode) fails with the attached=20
>> test/lisp/emacs-lisp/benchmark-tests.log. I suppose this is because my=
=20
>> platform doesn't have native compilation but the benchmark's (tag=20
>> :nativecomp) doesn't test for native compilation accurately?
>
> I don't think so, because on my system the tests pass in a build
> without native-compilation:
>
> So something else is at work here, please try to understand which code
> signals an error in your case.
>
> Michael, any ideas?

In test/lisp/emacs-lisp/benchmark-tests.el, there is just
one test case. And there is the comment:

=2D-8<---------------cut here---------------start------------->8---
  ;; Avoid fork failures on Cygwin.  See bug#62450 and etc/PROBLEMS
  ;; ("Fork failures in a build with native compilation").
  (skip-when (and (eq system-type 'cygwin)
                  (featurep 'native-compile)))
=2D-8<---------------cut here---------------end--------------->8---

So perhaps we shall skip this test just for (featurep 'native-compile)?

And sorry, I don't know enough about nativecomp that I could comment
about the problem itself.

Best regards, Michael.




Information forwarded to bug-gnu-emacs@HIDDEN:
bug#80411; Package emacs. Full text available.

Message received at 80411 <at> debbugs.gnu.org:


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Date: Mon, 16 Feb 2026 14:33:39 +0200
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From: Eli Zaretskii <eliz@HIDDEN>
To: Paul Eggert <eggert@HIDDEN>, Michael Albinus <michael.albinus@HIDDEN>
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Subject: Re: bug#80411: lisp/emacs-lisp/benchmark-tests.el failure without
 native compilation
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> Date: Sun, 15 Feb 2026 13:36:38 -0800
> From: Paul Eggert <eggert@HIDDEN>
> 
> Running 'make check' on Emacs master with Ubuntu 25.10 x86-64 (but in 
> 32-bit mode) fails with the attached 
> test/lisp/emacs-lisp/benchmark-tests.log. I suppose this is because my 
> platform doesn't have native compilation but the benchmark's (tag 
> :nativecomp) doesn't test for native compilation accurately?

I don't think so, because on my system the tests pass in a build
without native-compilation:

    GEN      lisp/emacs-lisp/benchmark-tests.log
  Running 1 tests (2026-02-16 14:29:21+0200, selector `(not (or (tag :unstable) (tag :nativecomp)))')
  Elapsed time: 0.000000s
  Elapsed time: 0.000000s
  Elapsed time: 0.049202s
  Elapsed time: 0.000002s
     passed  1/1  benchmark-tests (0.170829 sec)

  Ran 1 tests, 1 results as expected, 0 unexpected (2026-02-16 14:29:21+0200, 0.174366 sec)

So something else is at work here, please try to understand which code
signals an error in your case.

Michael, any ideas?




Information forwarded to bug-gnu-emacs@HIDDEN:
bug#80411; Package emacs. Full text available.

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


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To: Emacs bug reports and feature requests <bug-gnu-emacs@HIDDEN>
From: Paul Eggert <eggert@HIDDEN>
Organization: UCLA Computer Science Department
Subject: lisp/emacs-lisp/benchmark-tests.el failure without native compilation
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--------------0jBvKmbIoLcmMcZXW7WX4YHt
Content-Type: text/plain; charset=UTF-8; format=flowed
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Running 'make check' on Emacs master with Ubuntu 25.10 x86-64 (but in 
32-bit mode) fails with the attached 
test/lisp/emacs-lisp/benchmark-tests.log. I suppose this is because my 
platform doesn't have native compilation but the benchmark's (tag 
:nativecomp) doesn't test for native compilation accurately?

In GNU Emacs 31.0.50 (build 3, i686-pc-linux-gnu) of 2026-02-15 built on
  wing
Repository revision: f84fb38a8241e94efdc2c191084822e74a57f806
Repository branch: master
Windowing system distributor 'The X.Org Foundation', version 11.0.12401006
System Description: Ubuntu 25.10

Configured using:
  'configure --with-wide-int 'CC=gcc -m32 -march=native'
  --enable-gcc-warnings --without-sound --without-dbus
  --without-file-notification --without-gconf --without-gif
  --without-gsettings --without-imagemagick --without-rsvg
  --with-x-toolkit=no --with-modules --with-gnutls=ifavailable'

Configured features:
GMP JPEG MODULES OLDXMENU PDUMPER PNG SECCOMP THREADS TIFF X11 XDBE XIM
XPM ZLIB

Important settings:
   value of $LC_ALL: en_US.utf8
   value of $LANG: C
   value of $XMODIFIERS: @im=ibus
   locale-coding-system: utf-8-unix

Major mode: Lisp Interaction

Minor modes in effect:
   global-whitespace-mode: t
   whitespace-mode: t
   tooltip-mode: t
   global-eldoc-mode: t
   eldoc-mode: t
   show-paren-mode: t
   electric-quote-mode: t
   electric-indent-mode: t
   mouse-wheel-mode: t
   tool-bar-mode: t
   menu-bar-mode: t
   file-name-shadow-mode: t
   global-font-lock-mode: t
   font-lock-mode: t
   blink-cursor-mode: t
   minibuffer-nonselected-mode: t
   minibuffer-regexp-mode: t
   line-number-mode: t
   indent-tabs-mode: t
   transient-mark-mode: t
   auto-composition-mode: t
   auto-encryption-mode: t
   auto-compression-mode: t

Load-path shadows:
None found.

Features:
(shadow sort mail-extr emacsbug lisp-mnt message mailcap yank-media puny
dired dired-loaddefs rfc822 mml mml-sec password-cache epa derived epg
rfc6068 epg-config gnus-util text-property-search time-date subr-x
mule-util mm-decode mm-bodies mm-encode mailabbrev gmm-utils mailheader
cl-loaddefs cl-lib sendmail mail-parse rfc2231 rfc2047 rfc2045
ietf-drums mm-util mail-prsvr mail-utils whitespace rmc iso-transl
tooltip cconv eldoc paren electric uniquify ediff-hook vc-hooks
lisp-float-type elisp-mode mwheel term/x-win x-win term/common-win x-dnd
touch-screen tool-bar dnd fontset image regexp-opt fringe tabulated-list
replace newcomment text-mode lisp-mode prog-mode register page tab-bar
menu-bar rfn-eshadow isearch easymenu timer select scroll-bar mouse
jit-lock font-lock syntax font-core term/tty-colors frame minibuffer
nadvice seq simple cl-generic indonesian philippine cham georgian
utf-8-lang misc-lang vietnamese tibetan thai tai-viet lao korean
japanese eucjp-ms cp51932 hebrew greek romanian slovak czech european
ethiopic indian cyrillic chinese composite emoji-zwj charscript charprop
case-table epa-hook jka-cmpr-hook help abbrev obarray oclosure
cl-preloaded button loaddefs theme-loaddefs faces cus-face macroexp
files window text-properties overlay sha1 md5 base64 format env
code-pages mule custom widget keymap hashtable-print-readable backquote
threads dynamic-setting x multi-tty move-toolbar make-network-process
tty-child-frames emacs)

Memory information:
((conses 16 38938 61166) (symbols 40 5590 1) (strings 16 12734 12214)
  (string-bytes 1 320587) (vectors 12 9751)
  (vector-slots 8 109159 36478) (floats 8 28 17) (intervals 36 272 124)
  (buffers 876 10))

--------------0jBvKmbIoLcmMcZXW7WX4YHt
Content-Type: text/x-log; charset=UTF-8; name="benchmark-tests.log"
Content-Disposition: attachment; filename="benchmark-tests.log"
Content-Transfer-Encoding: base64

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--------------0jBvKmbIoLcmMcZXW7WX4YHt--




Acknowledgement sent to Paul Eggert <eggert@HIDDEN>:
New bug report received and forwarded. Copy sent to bug-gnu-emacs@HIDDEN. Full text available.
Report forwarded to bug-gnu-emacs@HIDDEN:
bug#80411; Package emacs. Full text available.
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