GNU bug report logs - #46638
28.0.50; Hang on macOS with nativecomp in regex-emacs

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Message #5 received at submit <at> debbugs.gnu.org (full text, mbox):

From: Aaron Jensen <aaronjensen <at> gmail.com>
To: bug-gnu-emacs <at> gnu.org
Subject: 28.0.50; Hang on macOS with nativecomp in regex-emacs
Date: Fri, 19 Feb 2021 09:58:22 -0600

A few times now, Emacs has hung. I believe there's a correlation with
when I open magit-status, but I can't say that definitively.
Unfortunately, the hang makes it difficult to attach to Emacs to debug.
When I attached with XCode, I got nothing useful. After detaching, I
attached with lldb directly and I got this as my trace:

* thread #1, queue = 'com.apple.main-thread', stop reason = signal SIGSTOP
    frame #0: 0x00007fff6a7145e0 libsystem_platform.dylib`_sigtramp
libsystem_platform.dylib`_sigtramp:
->  0x7fff6a7145e0 <+0>: pushq  %rbp
    0x7fff6a7145e1 <+1>: movq   %rsp, %rbp
    0x7fff6a7145e4 <+4>: movq   %rdi, %rax
    0x7fff6a7145e7 <+7>: incl   0x264ef4d3(%rip)          ; __in_sigtramp
Target 0: (emacs) stopped.

Also, before I attached anything, I did a process sample and got this,
which looks more useful:

    2457 Thread_11734453   DispatchQueue_1: com.apple.main-thread  (serial)
    + 2457 F70726f636573732d66696c65_process_file_0  (in simple-fab5b0cf-4ca11a8e.eln) + 800  [0x10b3479f0]
    +   2457 Fapply  (in emacs) + 625  [0x107067751]  eval.c:2636
    +     2457 Ffuncall  (in emacs) + 640  [0x107067a10]  eval.c:3006
    +       2457 funcall_subr  (in emacs) + 181  [0x1070682e5]  eval.c:0
    +         2457 Fcall_process  (in emacs) + 175  [0x1070bd8ff]  callproc.c:285
    +           2457 call_process  (in emacs) + 2109  [0x1070be1dd]  callproc.c:609
    +             2457 re_match_2_internal  (in emacs) + 154  [0x1070350ea]  regex-emacs.c:3964
    +               2457 _sigtramp  (in libsystem_platform.dylib) + 0  [0x7fff6a7145e0]

For me, the line in regex-emacs.c is:

  INIT_FAIL_STACK ();

Unfortunately, I don't have a way to reliably reproduce this. It happens
once every couple of days.

I can say it seems to be correlated with using the nativecomp branch.


In GNU Emacs 28.0.50 (build 5, x86_64-apple-darwin19.6.0, NS appkit-1894.60 Version 10.15.7 (Build 19H512))
 of 2021-02-18 built on aaron-sub.local
Repository revision: 24926a03cdaf36017df27e947abb02aa626b8a99
Repository branch: feature/native-comp
Windowing system distributor 'Apple', version 10.3.1894
System Description:  Mac OS X 10.15.7

Configured using:
 'configure 'LDFLAGS=-L/usr/local/lib/gcc/10
 -I/usr/local/opt/gcc/include -I/usr/local/opt/libgccjit/include
 -I/usr/local/opt/gmp/include -I/usr/local/opt/jpeg/include'
 'CFLAGS=-I/usr/local/opt/gcc/include -I/usr/local/opt/libgccjit/include
 -I/usr/local/opt/gmp/include -I/usr/local/opt/jpeg/include -g3 -Og'
 --disable-dependency-tracking --disable-silent-rules --with-xml2
 --with-gnutls --with-nativecomp --without-dbus --with-imagemagick
 --with-modules --with-rsvg --with-ns --disable-ns-self-contained'

Configured features:
ACL GLIB GMP GNUTLS IMAGEMAGICK JPEG JSON LCMS2 LIBXML2 MODULES
NATIVE_COMP NOTIFY KQUEUE NS PDUMPER PNG RSVG THREADS TIFF
TOOLKIT_SCROLL_BARS ZLIB

Important settings:
  value of $LANG: en_US.UTF-8
  locale-coding-system: utf-8-unix

Major mode: Fundamental

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  doom-modeline-mode: t
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  delete-selection-mode: t
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  mouse-wheel-mode: t
  menu-bar-mode: t
  file-name-shadow-mode: t
  global-font-lock-mode: t
  window-divider-mode: t
  auto-composition-mode: t
  auto-encryption-mode: t
  auto-compression-mode: t
  line-number-mode: t
  transient-mark-mode: t

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/Users/aaronjensen/.emacs.d/straight/build/org-plus-contrib/ox-ascii hides /Users/aaronjensen/Source/emacs/lisp/org/ox-ascii
/Users/aaronjensen/.emacs.d/straight/build/org-plus-contrib/ob-matlab hides /Users/aaronjensen/Source/emacs/lisp/org/ob-matlab
/Users/aaronjensen/.emacs.d/straight/build/org-plus-contrib/ox hides /Users/aaronjensen/Source/emacs/lisp/org/ox
/Users/aaronjensen/.emacs.d/straight/build/org-plus-contrib/org-timer hides /Users/aaronjensen/Source/emacs/lisp/org/org-timer
/Users/aaronjensen/.emacs.d/straight/build/org-plus-contrib/ob-core hides /Users/aaronjensen/Source/emacs/lisp/org/ob-core
/Users/aaronjensen/.emacs.d/straight/build/org-plus-contrib/org-feed hides /Users/aaronjensen/Source/emacs/lisp/org/org-feed
/Users/aaronjensen/.emacs.d/straight/build/org-plus-contrib/ob-io hides /Users/aaronjensen/Source/emacs/lisp/org/ob-io
/Users/aaronjensen/.emacs.d/straight/build/org-plus-contrib/ob-gnuplot hides /Users/aaronjensen/Source/emacs/lisp/org/ob-gnuplot
/Users/aaronjensen/.emacs.d/straight/build/org-plus-contrib/ob-js hides /Users/aaronjensen/Source/emacs/lisp/org/ob-js
/Users/aaronjensen/.emacs.d/straight/build/org-plus-contrib/org-footnote hides /Users/aaronjensen/Source/emacs/lisp/org/org-footnote
/Users/aaronjensen/.emacs.d/straight/build/org-plus-contrib/ob-maxima hides /Users/aaronjensen/Source/emacs/lisp/org/ob-maxima
/Users/aaronjensen/.emacs.d/straight/build/org-plus-contrib/ob-hledger hides /Users/aaronjensen/Source/emacs/lisp/org/ob-hledger
/Users/aaronjensen/.emacs.d/straight/build/org-plus-contrib/org-install hides /Users/aaronjensen/Source/emacs/lisp/org/org-install
/Users/aaronjensen/.emacs.d/straight/build/org-plus-contrib/org-crypt hides /Users/aaronjensen/Source/emacs/lisp/org/org-crypt
/Users/aaronjensen/.emacs.d/straight/build/let-alist/let-alist hides /Users/aaronjensen/Source/emacs/lisp/emacs-lisp/let-alist

Features:
(shadow mail-extr explain-pause-mode explain-pause-top
explain-pause-log-to-socket evil-collection-restclient restclient
vterm-toggle tramp-sh evil-collection-vterm vterm term ehelp
vterm-module term/xterm xterm dumb-jump popup dockerfile-mode yaml-mode
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semantic/tag semantic/lex semantic/fw mode-local cedet ediff ediff-merg
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goto-addr lsp-ui-imenu lsp-ui-peek lsp-ui-sideline face-remap
lsp-ui-util lsp-mode lv emacsbug sendmail lsp-protocol char-fold spinner
network-stream smartparens-markdown markdown-mode ewoc bindat
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better-jumper smartparens-config smartparens-text smartparens evil-anzu
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evil-collection-help evil-collection-custom evil-collection-process-menu
evil-collection annalist evil-mc evil-mc-command-execute
evil-mc-command-record evil-mc-cursor-make evil-mc-region
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evil-mc-common evil-numbers evil-matchit evil-matchit-sdk evil-surround
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org-drill-autoloads persist-autoloads org-appear-autoloads
evil-org-autoloads transient-posframe-autoloads restart-emacs-autoloads
better-jumper-autoloads buffer-move-autoloads
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selectrum-prescient-autoloads selectrum-autoloads
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wgrep-autoloads yasnippet-autoloads form-feed-autoloads
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ws-butler ws-butler-autoloads evil-anzu-autoloads anzu-autoloads
evil-collection-autoloads annalist-autoloads evil-mc-autoloads
evil-numbers-autoloads speeddating-autoloads evil-matchit-autoloads
evil-nerd-commenter-autoloads evil-visualstar-autoloads
evil-surround-autoloads undo-tree diff queue undo-tree-autoloads
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treemacs-evil-autoloads evil-autoloads goto-chg-autoloads
treemacs-autoloads cfrs-autoloads ht-autoloads pfuture-autoloads
ace-window-autoloads avy-autoloads projectile-autoloads
pkg-info-autoloads epl-autoloads saveplace rainbow-mode-autoloads
posframe-autoloads ns-auto-titlebar ns-auto-titlebar-autoloads
doom-modeline doom-modeline-segments let-alist doom-modeline-env
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data-faicons data-alltheicons dash doom-modeline-autoloads
shrink-path-autoloads all-the-icons-autoloads modus-themes-autoloads
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dash-functional-autoloads dired-subtree-autoloads
dired-hacks-utils-autoloads dash-autoloads hydra-autoloads lv-autoloads
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bind-map-autoloads delsel savehist xt-mouse no-littering
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cyrillic chinese composite charscript charprop case-table epa-hook
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overlay sha1 md5 base64 format env code-pages mule custom widget
hashtable-print-readable backquote threads kqueue cocoa ns lcms2
multi-tty make-network-process nativecomp emacs)

Memory information:
((conses 16 1280102 210531)
 (symbols 48 78513 7)
 (strings 32 283059 29421)
 (string-bytes 1 10286584)
 (vectors 16 112350)
 (vector-slots 8 2118402 126361)
 (floats 8 2206 463)
 (intervals 56 12530 688)
 (buffers 984 20))

Message #8 received at 46638 <at> debbugs.gnu.org (full text, mbox):

From: Eli Zaretskii <eliz <at> gnu.org>
To: Aaron Jensen <aaronjensen <at> gmail.com>
Cc: 46638 <at> debbugs.gnu.org
Subject: Re: bug#46638: 28.0.50; Hang on macOS with nativecomp in regex-emacs
Date: Fri, 19 Feb 2021 18:10:55 +0200

> From: Aaron Jensen <aaronjensen <at> gmail.com>
> Date: Fri, 19 Feb 2021 09:58:22 -0600
> 
>     2457 Thread_11734453   DispatchQueue_1: com.apple.main-thread  (serial)
>     + 2457 F70726f636573732d66696c65_process_file_0  (in simple-fab5b0cf-4ca11a8e.eln) + 800  [0x10b3479f0]
>     +   2457 Fapply  (in emacs) + 625  [0x107067751]  eval.c:2636
>     +     2457 Ffuncall  (in emacs) + 640  [0x107067a10]  eval.c:3006
>     +       2457 funcall_subr  (in emacs) + 181  [0x1070682e5]  eval.c:0
>     +         2457 Fcall_process  (in emacs) + 175  [0x1070bd8ff]  callproc.c:285
>     +           2457 call_process  (in emacs) + 2109  [0x1070be1dd]  callproc.c:609
>     +             2457 re_match_2_internal  (in emacs) + 154  [0x1070350ea]  regex-emacs.c:3964

callproc.c:609 doesn't call re_match_2_internal, it calls
emacs_spawn.  What am I missing here?

Message #11 received at 46638 <at> debbugs.gnu.org (full text, mbox):

From: Aaron Jensen <aaronjensen <at> gmail.com>
To: Eli Zaretskii <eliz <at> gnu.org>
Cc: 46638 <at> debbugs.gnu.org
Subject: Re: bug#46638: 28.0.50; Hang on macOS with nativecomp in regex-emacs
Date: Fri, 19 Feb 2021 10:28:05 -0600

On Fri, Feb 19, 2021 at 10:10 AM Eli Zaretskii <eliz <at> gnu.org> wrote:
>
> > From: Aaron Jensen <aaronjensen <at> gmail.com>
> > Date: Fri, 19 Feb 2021 09:58:22 -0600
> >
> >     2457 Thread_11734453   DispatchQueue_1: com.apple.main-thread  (serial)
> >     + 2457 F70726f636573732d66696c65_process_file_0  (in simple-fab5b0cf-4ca11a8e.eln) + 800  [0x10b3479f0]
> >     +   2457 Fapply  (in emacs) + 625  [0x107067751]  eval.c:2636
> >     +     2457 Ffuncall  (in emacs) + 640  [0x107067a10]  eval.c:3006
> >     +       2457 funcall_subr  (in emacs) + 181  [0x1070682e5]  eval.c:0
> >     +         2457 Fcall_process  (in emacs) + 175  [0x1070bd8ff]  callproc.c:285
> >     +           2457 call_process  (in emacs) + 2109  [0x1070be1dd]  callproc.c:609
> >     +             2457 re_match_2_internal  (in emacs) + 154  [0x1070350ea]  regex-emacs.c:3964
>
> callproc.c:609 doesn't call re_match_2_internal, it calls
> emacs_spawn.  What am I missing here?

Hmm, good question. This particular build was compiled with -g3 -Og,
but I don't think that'd make it lie about line numbers. Maybe it's
not showing some inlined frames? Also, this is from Activity Monitor's
sampling, so I don't know how well that translates to a stack trace.

Message #14 received at 46638 <at> debbugs.gnu.org (full text, mbox):

From: Lars Ingebrigtsen <larsi <at> gnus.org>
To: Aaron Jensen <aaronjensen <at> gmail.com>
Cc: 46638 <at> debbugs.gnu.org
Subject: Re: bug#46638: 28.0.50; Hang on macOS with nativecomp in regex-emacs
Date: Fri, 17 Jun 2022 20:32:07 +0200

Aaron Jensen <aaronjensen <at> gmail.com> writes:

> Unfortunately, I don't have a way to reliably reproduce this. It happens
> once every couple of days.
>
> I can say it seems to be correlated with using the nativecomp branch.

(I'm going through old bug reports that unfortunately weren't resolved
at the time.)

Do you still see this in recent Emacs versions?

-- 
(domestic pets only, the antidote for overdose, milk.)
   bloggy blog: http://lars.ingebrigtsen.no

Message #19 received at 46638 <at> debbugs.gnu.org (full text, mbox):

From: Aaron Jensen <aaronjensen <at> gmail.com>
To: Lars Ingebrigtsen <larsi <at> gnus.org>
Cc: 46638 <at> debbugs.gnu.org
Subject: Re: bug#46638: 28.0.50; Hang on macOS with nativecomp in regex-emacs
Date: Fri, 17 Jun 2022 18:09:34 -0400

On Fri, Jun 17, 2022 at 2:32 PM Lars Ingebrigtsen <larsi <at> gnus.org> wrote:
>
> Aaron Jensen <aaronjensen <at> gmail.com> writes:
>
> > Unfortunately, I don't have a way to reliably reproduce this. It happens
> > once every couple of days.
> >
> > I can say it seems to be correlated with using the nativecomp branch.
>
> (I'm going through old bug reports that unfortunately weren't resolved
> at the time.)
>
> Do you still see this in recent Emacs versions?

I have not seen this recently, please close.

Thanks,

Aaron

Message #22 received at 46638 <at> debbugs.gnu.org (full text, mbox):

From: Lars Ingebrigtsen <larsi <at> gnus.org>
To: Aaron Jensen <aaronjensen <at> gmail.com>
Cc: 46638 <at> debbugs.gnu.org
Subject: Re: bug#46638: 28.0.50; Hang on macOS with nativecomp in regex-emacs
Date: Sat, 18 Jun 2022 00:19:27 +0200

Aaron Jensen <aaronjensen <at> gmail.com> writes:

> I have not seen this recently, please close.

Thanks; closing.

-- 
(domestic pets only, the antidote for overdose, milk.)
   bloggy blog: http://lars.ingebrigtsen.no

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