GNU bug report logs - #60208
28.1; Resource exhaustion with emacs 28's native compilation; need "-Q" for trampoline

Previous Next

Full log

View this message in rfc822 format

From: help-debbugs <at> gnu.org (GNU bug Tracking System)
To: htl10 <at> users.sourceforge.net
Subject: bug#60208: closed (Re: bug#60208: 28.1; Resource exhaustion with
 emacs 28's native compilation; need "-Q" for trampoline)
Date: Thu, 22 Dec 2022 07:22:02 +0000

[Message part 1 (text/plain, inline)]

Your bug report

#60208: 28.1; Resource exhaustion with emacs 28's native compilation; need "-Q" for trampoline

which was filed against the emacs package, has been closed.

The explanation is attached below, along with your original report.
If you require more details, please reply to 60208 <at> debbugs.gnu.org.

-- 
60208: https://debbugs.gnu.org/cgi/bugreport.cgi?bug=60208
GNU Bug Tracking System
Contact help-debbugs <at> gnu.org with problems

[Message part 2 (message/rfc822, inline)]

From: Eli Zaretskii <eliz <at> gnu.org>
To: Hin-Tak Leung <htl10 <at> users.sourceforge.net>
Cc: 60208-done <at> debbugs.gnu.org, akrl <at> sdf.org
Subject: Re: bug#60208: 28.1; Resource exhaustion with emacs 28's native
 compilation; need "-Q" for trampoline
Date: Thu, 22 Dec 2022 09:21:35 +0200

> Date: Thu, 22 Dec 2022 00:33:42 +0000 (UTC)
> From: Hin-Tak Leung <htl10 <at> users.sourceforge.net>
> Cc: 60208 <at> debbugs.gnu.org
> 
> On Thursday, 22 December 2022 at 06:31:08 GMT+8, Andrea Corallo <akrl <at> sdf.org> wrote:
> 
> > Done with e59216d3be8.
> 
> Thanks a lot for the speedy response!

Thanks, I'm therefore closing this bug.

[Message part 3 (message/rfc822, inline)]

From: Hin-Tak Leung <htl10 <at> users.sourceforge.net>
To: bug-gnu-emacs <at> gnu.org
Subject: 28.1; Resource exhaustion with emacs 28's native compilation; need
 "-Q" for trampoline
Date: Mon, 19 Dec 2022 21:59:26 +0000 (UTC)

--text follows this line--

Basically this is about resource exhaustion with emacs 28's native
compilation, leading to crash if not caught. There is a missing "-Q" for
building "emacs-int-comp-subr--trampoline..*...el".

More details at:

https://bugzilla.redhat.com/show_bug.cgi?id=2109745
Bug 2109745 - emacs-ess spawn multiple processes with ... --batch -l /tmp/emacs-async-comp-ess-custom-*.el

and at

https://github.com/emacs-ess/ESS/issues/1222
Resource exhaustion with emacs 28's native compilation.

What happens seems to be this: emacs-ess have about 50+ files, which
would be natively compiled on fedora's recent native-compile-enabled
emacs.

On fedora, they also auto-load emacs-ess mode via site-lisp.

Now,
"/tmp/emacs-int-comp-subr--trampoline-64656c6574652d63686172_delete_char_0-*.el"
seems to be some kind of stub which needs to be natively compiled as a
prerequisite for any native compilation at all, and it needs to be done
once ever, and it writes to
~/.emacs.d/eln-cache/28.1-b1f2d84a/subr--trampoline-64656c6574652d63686172_delete_char_0.eln
, and do it exactly once.

However, currently, emacs 28 is doing this via:

"/usr/bin/emacs --batch -l /tmp/emacs-int-comp-subr--trampoline..."

missing a "-Q", and should be:

"/usr/bin/emacs -Q --batch -l /tmp/emacs-int-comp-subr--trampoline..."

The consequence of the missing "-Q" is that, this commands also loads
emacs-ess, and which requires native compilation, which launches more
copies of the process of "emacs ... --batch -l
/tmp/emacs-int-comp-subr--trampoline...".

We soon have hundred of copies of emacs running, and thousands, and leading to resource
exhaustion and eventual crash.

I don't know how that trampoline file is generated, and what is its exact purpose, but it seems to be generic (not specific to emacs-ess) , and that it
should be compiled with a missing "-Q", instead of running emacs --batch plain.


In GNU Emacs 28.1 (build 1, x86_64-redhat-linux-gnu, GTK+ Version 3.24.34, cairo version 1.17.6)
 of 2022-07-15 built on buildhw-x86-02.iad2.fedoraproject.org
Windowing system distributor 'The X.Org Foundation', version 11.0.12014000
System Description: Fedora Linux 36 (Workstation Edition)

Configured using:
 'configure --build=x86_64-redhat-linux-gnu
 --host=x86_64-redhat-linux-gnu --program-prefix=
 --disable-dependency-tracking --prefix=/usr --exec-prefix=/usr
 --bindir=/usr/bin --sbindir=/usr/sbin --sysconfdir=/etc
 --datadir=/usr/share --includedir=/usr/include --libdir=/usr/lib64
 --libexecdir=/usr/libexec --localstatedir=/var
 --sharedstatedir=/var/lib --mandir=/usr/share/man
 --infodir=/usr/share/info --with-dbus --with-gif --with-jpeg --with-png
 --with-rsvg --with-tiff --with-xpm --with-x-toolkit=gtk3 --with-gpm=no
 --with-xwidgets --with-modules --with-harfbuzz --with-cairo --with-json
 --with-native-compilation build_alias=x86_64-redhat-linux-gnu
 host_alias=x86_64-redhat-linux-gnu CC=gcc 'CFLAGS=-DMAIL_USE_LOCKF -O2
 -flto=auto -ffat-lto-objects -fexceptions -g -grecord-gcc-switches
 -pipe -Wall -Werror=format-security -Wp,-D_FORTIFY_SOURCE=2
 -Wp,-D_GLIBCXX_ASSERTIONS
 -specs=/usr/lib/rpm/redhat/redhat-hardened-cc1 -fstack-protector-strong
 -specs=/usr/lib/rpm/redhat/redhat-annobin-cc1 -m64 -mtune=generic
 -fasynchronous-unwind-tables -fstack-clash-protection -fcf-protection'
 LDFLAGS=-Wl,-z,relro
 PKG_CONFIG_PATH=:/usr/lib64/pkgconfig:/usr/share/pkgconfig'

Configured features:
ACL CAIRO DBUS FREETYPE GIF GLIB GMP GNUTLS GSETTINGS HARFBUZZ JPEG JSON
LIBOTF LIBSELINUX LIBSYSTEMD LIBXML2 M17N_FLT MODULES NATIVE_COMP NOTIFY
INOTIFY PDUMPER PNG RSVG SECCOMP SOUND THREADS TIFF TOOLKIT_SCROLL_BARS
X11 XDBE XIM XPM XWIDGETS GTK3 ZLIB

Important settings:
  value of $LC_MONETARY: en_GB.utf8
  value of $LC_NUMERIC: en_GB.utf8
  value of $LC_TIME: en_GB.utf8
  value of $LANG: en_GB.UTF-8
  value of $XMODIFIERS: @im=ibus
  locale-coding-system: utf-8-unix

Major mode: Lisp Interaction

Minor modes in effect:
  shell-dirtrack-mode: t
  tooltip-mode: t
  global-eldoc-mode: t
  eldoc-mode: t
  show-paren-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
  auto-composition-mode: t
  auto-encryption-mode: t
  auto-compression-mode: t
  line-number-mode: t
  transient-mark-mode: t

Load-path shadows:
/usr/share/emacs/site-lisp/lilypond-init hides /usr/share/emacs/site-lisp/site-start.d/lilypond-init

Features:
(shadow sort mail-extr emacsbug message rmc puny dired dired-loaddefs
rfc822 mml mml-sec epa derived epg rfc6068 epg-config gnus-util rmail
rmail-loaddefs time-date mm-decode mm-bodies mm-encode mail-parse
rfc2231 mailabbrev gmm-utils mailheader sendmail rfc2047 rfc2045
ietf-drums mm-util mail-prsvr mail-utils finder-inf package url-handlers
ess-site ess-toolbar ess-mouse mouseme browse-url url url-proxy
url-privacy url-expand url-methods url-history url-cookie url-domsuf
url-util url-parse auth-source eieio eieio-core eieio-loaddefs
password-cache url-vars mailcap ess-swv ess-noweb
ess-noweb-font-lock-mode ess-jags-d ess-bugs-l essd-els ess-xls-d
ess-vst-d ess-stata-mode ess-stata-lang cc-vars cc-defs make-regexp
ess-sp6w-d ess-sp5-d ess-sp4-d ess-sas-d ess-sas-l ess-sas-a ess-s4-d
ess-s3-d ess-omg-d ess-omg-l ess-arc-d ess-lsp-l ess-sp6-d ess-dde
ess-sp3-d ess-julia julia-mode cl ess-r-mode ess-r-flymake flymake-proc
flymake thingatpt ess-r-xref xref project ess-trns ess-r-package shell
pcomplete ess-r-syntax ess-r-completion ess-roxy ess-rd essddr noutline
outline easy-mmode hideshow ess-s-lang ess-help info ess-mode ess
ess-noweb-mode ess-inf ess-tracebug comp comp-cstr warnings rx cl-seq
cl-extra help-mode advice format-spec ess-generics compile
text-property-search ess-utils ido ess-custom executable comint
ansi-color ring clang-rename clang-include-fixer let-alist json subr-x
map seq byte-opt bytecomp byte-compile cconv clang-format cl-macs gv xml
cl-loaddefs cl-lib iso-transl tooltip eldoc paren electric uniquify
ediff-hook vc-hooks lisp-float-type elisp-mode mwheel term/x-win x-win
term/common-win x-dnd 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 cl-generic 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 simple abbrev obarray cl-preloaded nadvice button
loaddefs faces cus-face macroexp files window text-properties overlay
sha1 md5 base64 format env code-pages mule custom widget
hashtable-print-readable backquote threads xwidget-internal dbusbind
inotify dynamic-setting system-font-setting font-render-setting cairo
move-toolbar gtk x-toolkit x multi-tty make-network-process
native-compile emacs)

Memory information:
((conses 16 179768 7459)
 (symbols 48 16053 0)
 (strings 32 56305 2843)
 (string-bytes 1 1932240)
 (vectors 16 28343)
 (vector-slots 8 521371 19414)
 (floats 8 78 41)
 (intervals 56 332 0)
 (buffers 992 13))

Previous Next

GNU bug tracking system
Copyright (C) 1999 Darren O. Benham, 1997,2003 nCipher Corporation Ltd, 1994-97 Ian Jackson.