From unknown Sat Jun 21 03:26:12 2025 Content-Disposition: inline Content-Transfer-Encoding: quoted-printable MIME-Version: 1.0 X-Mailer: MIME-tools 5.509 (Entity 5.509) Content-Type: text/plain; charset=utf-8 From: bug#52141 <52141@debbugs.gnu.org> To: bug#52141 <52141@debbugs.gnu.org> Subject: Status: 29.0.50; Crash during redisplay Reply-To: bug#52141 <52141@debbugs.gnu.org> Date: Sat, 21 Jun 2025 10:26:12 +0000 retitle 52141 29.0.50; Crash during redisplay reassign 52141 emacs submitter 52141 Po Lu severity 52141 normal thanks From debbugs-submit-bounces@debbugs.gnu.org Sat Nov 27 06:03:21 2021 Received: (at submit) by debbugs.gnu.org; 27 Nov 2021 11:03:21 +0000 Received: from localhost ([127.0.0.1]:33032 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1mqvUG-0005zN-KT for submit@debbugs.gnu.org; Sat, 27 Nov 2021 06:03:21 -0500 Received: from lists.gnu.org ([209.51.188.17]:45174) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1mqvUE-0005zF-Km for submit@debbugs.gnu.org; Sat, 27 Nov 2021 06:03:19 -0500 Received: from eggs.gnu.org ([209.51.188.92]:54076) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1mqvUE-0008I1-Fk for bug-gnu-emacs@gnu.org; Sat, 27 Nov 2021 06:03:18 -0500 Received: from sonic306-20.consmr.mail.ne1.yahoo.com ([66.163.189.82]:41322) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_128_GCM_SHA256:128) (Exim 4.90_1) (envelope-from ) id 1mqvUB-0002Ui-KB for bug-gnu-emacs@gnu.org; Sat, 27 Nov 2021 06:03:17 -0500 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=yahoo.com; s=s2048; t=1638010994; bh=EryYSNV4phGL4xXMPiuXXk+FZAzL9+yJ/SYSZkfzVnU=; h=From:To:Subject:Date:References:From:Subject:Reply-To; b=Aa3BcKE7JtF6J8BMV0g9815pagYes7s2nOAN6wAY7VCey62p5rg3IQIoq2lr/S8l2D2n+ZJN7DnrSPH/ddDRZyb1uNoR0a6SMoMXsmip9MVAs3hyWYkyHu24xVrt+V7jNAW4rmHJWTA2OXuqEgR3fTwkciqHnm84WYcFgLAQnXlcgLciAuhCodfWSNt9eUOCxp0hiWuMFJw/5ljU5TL8G9VG8mUbVUfu6+Sqt9BiZVhyqORNv7qvFrqUdoHtsU2ZJsdRu52qIuWg52IyD8CikG6rvTe0+QsFRvjLNwLk2IkEFcOVuxI/BR7Y4s9bRBEQDzVEp1RK4HhdAOT+47kJGg== X-SONIC-DKIM-SIGN: v=1; a=rsa-sha256; c=relaxed/relaxed; d=yahoo.com; s=s2048; t=1638010994; bh=uDSR5RYxjtuhS5fvt0kJV6zQRsP6Q+5+yBjUFkVub+u=; h=X-Sonic-MF:From:To:Subject:Date:From:Subject; b=mA4ww5i34PLmAbmKFbgMqOat3nm7pQuldB6LbsDuRTKX3OWX0hUue7rhc2X4+9LvnlBs58gCQFBKr0EBY8c8n+hwEmM6avA02hitQ/wImT8VcvR0jVK5pH3QGeR6y5jCMRRKJkGSQkhVXF1VdFv/9Sa5xBbpJzhMvQnuz/hWOFoGOhQ/oJh4mSPyecC+7bOp4DEufcNo2iCkVQdLGauyJ/W430vM5GOSI3xoqNB2hsJ1LEv/cCL2O/6NuzUybpU13Ut3lKD9fNBCR9p5pgsDAFUEyZJFP9dyx0NxK1PXFiZ/wOSvfSYyu4klEsC3RgFqWHcb3N6rf4N0C/cy3ej97w== X-YMail-OSG: Qa7fmogVM1me.Uhn0FpHr.aqq7AjC9mFHD2sLHvgUSA5dhGVzMBdpNvqHxSeoDZ obzt77qWApsfF.uHRgwH4OJTP5PXIBLcX1expQBtmkiWZ97QQtTdKDapf6pKlSnatafi0.pn7cQh 3Q.FzhbIcsOZLJSMXofRENWmygN7wMtFJF4C4AyLRoqlJ6Mpvsi_5dz7q4fV2bPzoxY0fNfzG30N dpDFzgusMRVRnQ8ADz.7Qn56hfPBIQayDI33VbTkoSl_taomOoPJjR_1gK4Niqpeq0Qfz_vxcEwV wuv1yIyqAnI9Sj9x5W7HVp3zJzJhHIdWraIyKgYrIOAGgopcI3Tsz.j3wvN3Rme7un4v8OzDWAMY qsv36DROlCSgdIUqmqoaLXb7nX_7Fy56JRxR_b882navAIomNEH12IByOmLGImQ4_fR_Ucdb0JxV fBw4VBBFQo7oAdJzgXNns7ZKI.n0ROCLak.2tvqpt0V0sQFEUowurDhW3spampM7CyoQ__Gb7YbS LzS0XUnJEKDPdlqD.zYzEcTNjc5o18Nc9IJ7bAwQjXxwjQ0bB9jjpM7EHWZOl36JA2ZbedQB2H1g _cemnrBSRaf.rhE8JcR3b3TgP3zWhimvhUtvt3zLyJi3l9su0SooyByhrNf.heKJEcZi7eYVu5yp EBP.EH5QWstZMTJK8zDtIZSKkNB9tkhJGPvxXvcaZnxUFUUMn6tXvQIFVnO5lZ5cAsEvh883GVj3 jhVLnyo5TRiIsK_D9ywOEiNp_fFFj7mLSzOmHBt7nqO.0y66cYVXRmDdc78p0qHLDyXYXsCKK2gp 76z07LmShtlSAC_PZfsAZezKhhqiVAx1.NC4MAoc0NfCOejcTttC7NThIiUkNBMzKe2MeXqyZCvy sf6htyPcMpa035ILPm12Mec0W34w9x8Pg2h2nNQOsey4mqnY55iFsJ7RyOy_ZxS7nWSxtXGZlfK. 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8VxSxhE.2ahvorvk5v3wrCpxTU2iLeOK8kuc1lWGP8xbxtSYLvm5Y3Bzhz175_63ggu1eJ.6znQ_ 5QAGykxtdLztP3_RWFgAy5d5weOiLjojvXo4_BgvlQfuR3Php4Kn3aF_r3KNS7PTWPG7XrwDzCTG 11dgVgRISEUZZZLSPSO5NjPMZZbnr.htEE9hOcDhY7JmxKEeUftTc4y4HbvlaIR3eEx64da9mSut 2jF0vVupfp6QzCtLvbY9G_AZUrxPp3JFpRDRRBvIUJGpNFhvYBfX_VIKtOUAyG1bkuE_DcowsHV0 YbDAIrhAz3ozFFl8pP7UkysFHFN3drZ76bQ-- X-Sonic-MF: Received: from sonic.gate.mail.ne1.yahoo.com by sonic306.consmr.mail.ne1.yahoo.com with HTTP; Sat, 27 Nov 2021 11:03:14 +0000 Received: by kubenode513.mail-prod1.omega.sg3.yahoo.com (VZM Hermes SMTP Server) with ESMTPA ID 3c9cd529f9ad5fbff4ce99783b6fdbd3; Sat, 27 Nov 2021 11:03:11 +0000 (UTC) From: Po Lu To: bug-gnu-emacs@gnu.org Subject: 29.0.50; Crash during redisplay Date: Sat, 27 Nov 2021 19:03:06 +0800 Message-ID: <87o865c13p.fsf@yahoo.com> MIME-Version: 1.0 Content-Type: text/plain References: <87o865c13p.fsf.ref@yahoo.com> X-Mailer: WebService/1.1.19374 mail.backend.jedi.jws.acl:role.jedi.acl.token.atz.jws.hermes.yahoo Content-Length: 7386 Received-SPF: pass client-ip=66.163.189.82; envelope-from=luangruo@yahoo.com; helo=sonic306-20.consmr.mail.ne1.yahoo.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, RCVD_IN_MSPIKE_H2=-0.001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=ham autolearn_force=no X-Spam_action: no action X-Spam-Score: -0.6 (/) X-Debbugs-Envelope-To: submit X-BeenThere: debbugs-submit@debbugs.gnu.org X-Mailman-Version: 2.1.18 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: debbugs-submit-bounces@debbugs.gnu.org Sender: "Debbugs-submit" X-Spam-Score: -1.6 (-) I was typing a random document to test something, and I got the following crash out of the blue: #0 0x00007f201abbc85c in __pthread_kill_implementation () at /lib64/libc.so.6 #1 0x00007f201ab6f6b6 in raise () at /lib64/libc.so.6 #2 0x000000000041b6aa in terminate_due_to_signal (sig=sig@entry=11, backtrace_limit=backtrace_limit@entry=40) at emacs.c:443 #3 0x000000000041bb29 in handle_fatal_signal (sig=sig@entry=11) at sysdep.c:1780 #4 0x000000000051b9d8 in deliver_thread_signal (sig=sig@entry=11, handler=0x41bb1e ) at sysdep.c:1772 #5 0x000000000051ba49 in deliver_fatal_thread_signal (sig=11) at sysdep.c:1792 #6 handle_sigsegv (sig=11, siginfo=, arg=) at sysdep.c:1885 #7 0x00007f201ab6f760 in () at /lib64/libc.so.6 #8 0x000000000055c6b1 in make_lisp_ptr (type=, ptr=) at /home/oldosfan/emacs-dev/emacs-gc/src/lisp.h:1269 #9 set_next_vectorPython Exception : Cannot access memory at address 0xfe94cc8 (p=#10 setup_on_free_list (nbytes=, v=0x2ce6c10) at alloc.c:2977 #11 sweep_vectors () at alloc.c:3242 #12 0x0000000000561328 in gc_sweep () at alloc.c:7255 #13 garbage_collect () at alloc.c:6190 #14 0x0000000000561811 in maybe_garbage_collect () at alloc.c:6053 #15 0x00000000005804ad in maybe_gc () at /home/oldosfan/emacs-dev/emacs-gc/src/lisp.h:5161 #16 eval_sub (form=0x1e753d3) at eval.c:2449 #17 0x0000000000582149 in Feval (form=0x1e753d3, lexical=) at eval.c:2372 #18 0x000000000057d264 in internal_condition_case_1 (bfun=bfun@entry=0x503480 , arg=arg@entry=0x1e753d3, handlers=handlers@entry=0x90, hfun=hfun@entry=0x504110 ) at eval.c:1519 #19 0x000000000050bbd4 in menu_item_eval_property (sexpr=0x1e753d3) at keyboard.c:7705 #20 0x000000000050c7ad in parse_tool_bar_item (item=, key=0x7f2018e45708) at keyboard.c:8645 #21 process_tool_bar_item (key=0x7f2018e45708, def=, data=data@entry=0x0, args=args@entry=0x0) at keyboard.c:8525 #22 0x0000000000516c3e in map_keymap_item (data=0x0, val=, key=, args=0x0, fun=0x50c080 ) at keymap.c:507 #23 map_keymap_internal (map=map@entry=0x211e0d3, fun=fun@entry=0x50c080 , args=args@entry=0x0, data=data@entry=0x0) at keymap.c:554 #24 0x0000000000517dd3 in map_keymap (map=0x211e0d3, fun=fun@entry=0x50c080 , args=args@entry=0x0, data=data@entry=0x0, autoload=autoload@entry=true) at keymap.c:599 #25 0x000000000050d69c in tool_bar_items (reuse=, nitems=nitems@entry=0x7ffe6054cbcc) at keyboard.c:8489 #26 0x000000000043b831 in update_tool_bar (f=f@entry=0x1fd42e0, save_match_data=save_match_data@entry=false) at xdisp.c:14357 #27 0x00000000004696e1 in update_tool_bar (save_match_data=false, f=0x1fd42e0) at xdisp.c:14301 #28 prepare_menu_bars () at xdisp.c:13180 #29 redisplay_internal () at xdisp.c:16008 #30 0x000000000050eafb in read_char (commandflag=1, map=0x2e32f43, prev_event=0x0, used_mouse_menu=0x7ffe6054e5bb, end_time=0x0) at keyboard.c:2923 #31 0x0000000000510f11 in read_key_sequence (keybuf=, prompt=0x0, dont_downcase_last=, can_return_switch_frame=true, fix_current_buffer=true, prevent_redisplay=) at keyboard.c:9616 #32 0x000000000051289e in command_loop_1 () at keyboard.c:1393 #33 0x000000000057d1d7 in internal_condition_case (bfun=bfun@entry=0x5126c0 , handlers=handlers@entry=0x90, hfun=hfun@entry=0x509130 ) at eval.c:1495 #34 0x000000000050345a in command_loop_2 (handlers=handlers@entry=0x90) at keyboard.c:1134 #35 0x000000000057d131 in internal_catch (tag=tag@entry=0xe9a0, func=func@entry=0x503440 , arg=arg@entry=0x90) at eval.c:1226 #36 0x00000000005033ff in command_loop () at keyboard.c:1112 #37 0x0000000000508d2c in recursive_edit_1 () at keyboard.c:721 #38 0x0000000000509073 in Frecursive_edit () at keyboard.c:804 #39 0x00000000004234ff in main (argc=2, argv=) at emacs.c:2409 Please let me know if you need any more information and/or core dumps, thanks. In GNU Emacs 29.0.50 (build 338, x86_64-pc-linux-gnu, X toolkit, Xaw3d scroll bars) of 2021-11-27 built on sofa Repository revision: 6072370db7244a13470252e5369c4c9de3e3a9ef Repository branch: master Windowing system distributor 'The X.Org Foundation', version 11.0.12101003 System Description: Fedora Linux 35 (Workstation Edition) Configured using: 'configure --with-x-toolkit=lucid --without-cairo --with-xinput2 --cache-file=/tmp/ccache' Configured features: ACL DBUS FREETYPE GIF GLIB GMP GNUTLS GSETTINGS HARFBUZZ JPEG JSON LCMS2 LIBSELINUX LIBSYSTEMD LIBXML2 MODULES NOTIFY INOTIFY PDUMPER PNG RSVG SECCOMP SOUND THREADS TIFF TOOLKIT_SCROLL_BARS WEBP X11 XAW3D XDBE XFT XIM XINPUT2 XPM LUCID ZLIB Important settings: 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: 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 indent-tabs-mode: t transient-mark-mode: t Load-path shadows: None found. Features: (shadow sort mail-extr emacsbug message mailcap yank-media rmc puny dired dired-loaddefs rfc822 mml mml-sec epa derived epg rfc6068 epg-config gnus-util rmail rmail-loaddefs auth-source cl-seq eieio eieio-core cl-macs eieio-loaddefs password-cache json map text-property-search time-date seq gv subr-x byte-opt bytecomp byte-compile cconv mm-decode mm-bodies mm-encode mail-parse rfc2231 mailabbrev gmm-utils mailheader sendmail rfc2047 rfc2045 ietf-drums mm-util mail-prsvr mail-utils help-mode 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 keymap hashtable-print-readable backquote threads dbusbind inotify lcms2 dynamic-setting system-font-setting font-render-setting x-toolkit xinput2 x multi-tty make-network-process emacs) Memory information: ((conses 16 56115 8055) (symbols 48 6793 1) (strings 32 22189 1464) (string-bytes 1 707304) (vectors 16 14078) (vector-slots 8 188048 8894) (floats 8 24 46) (intervals 56 240 0) (buffers 992 10)) From debbugs-submit-bounces@debbugs.gnu.org Sat Nov 27 06:20:52 2021 Received: (at 52141) by debbugs.gnu.org; 27 Nov 2021 11:20:52 +0000 Received: from localhost ([127.0.0.1]:33049 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1mqvlE-0006Po-5M for submit@debbugs.gnu.org; Sat, 27 Nov 2021 06:20:52 -0500 Received: from eggs.gnu.org ([209.51.188.92]:55988) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1mqvlC-0006Pc-AG for 52141@debbugs.gnu.org; Sat, 27 Nov 2021 06:20:50 -0500 Received: from [2001:470:142:3::e] (port=55258 helo=fencepost.gnu.org) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1mqvl7-0004z5-3i; Sat, 27 Nov 2021 06:20:45 -0500 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=gnu.org; s=fencepost-gnu-org; h=References:Subject:In-Reply-To:To:From:Date: mime-version; bh=VCEBbBBftvsdGnDsA1rUbpNioA1EXK/IV3q+rbIjF1k=; b=avcTflFUMt3b OZ9UeIJ6+imBAZPj0JzLm3vVdYQd8RdY4tJa0h1G3fYkQH0MSeY0fTOkgmdHJvjHVZ1S/IgJXimPr awjKp4MLDFb/RsIRJtzUc2WqvgnQ6rjq4O1ziZO7unaD2+ZExtfQDIoCVYlMKi2Ey1kpmvuwTokMZ U2pTMrLDywGDFa9B4qL4bKOS0xRYckbBmFRo1OnvasvNBJMN1eUc07ZlOh8bTqhlviPu4/C0AJjcV HqarMKGNfYvr6G5N4TiJNc8FVquESodnjW1L9oMJCeOiUvMImMfRDvLWeGVAOD9YEV+8wv19lYhR5 yA1HUkcjK9ZMKIMs7W38Xg==; Received: from [87.69.77.57] (port=2944 helo=home-c4e4a596f7) by fencepost.gnu.org with esmtpsa (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1mqvl6-0003Lj-QS; Sat, 27 Nov 2021 06:20:45 -0500 Date: Sat, 27 Nov 2021 13:20:51 +0200 Message-Id: <83sfvhzvxo.fsf@gnu.org> From: Eli Zaretskii To: Po Lu In-Reply-To: <87o865c13p.fsf@yahoo.com> (bug-gnu-emacs@gnu.org) Subject: Re: bug#52141: 29.0.50; Crash during redisplay References: <87o865c13p.fsf.ref@yahoo.com> <87o865c13p.fsf@yahoo.com> X-Spam-Score: -2.3 (--) X-Debbugs-Envelope-To: 52141 Cc: 52141@debbugs.gnu.org X-BeenThere: debbugs-submit@debbugs.gnu.org X-Mailman-Version: 2.1.18 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: debbugs-submit-bounces@debbugs.gnu.org Sender: "Debbugs-submit" X-Spam-Score: -3.3 (---) > Date: Sat, 27 Nov 2021 19:03:06 +0800 > From: Po Lu via "Bug reports for GNU Emacs, > the Swiss army knife of text editors" > > > I was typing a random document to test something, and I got the > following crash out of the blue: > > #0 0x00007f201abbc85c in __pthread_kill_implementation () at /lib64/libc.so.6 > #1 0x00007f201ab6f6b6 in raise () at /lib64/libc.so.6 > #2 0x000000000041b6aa in terminate_due_to_signal (sig=sig@entry=11, backtrace_limit=backtrace_limit@entry=40) at emacs.c:443 > #3 0x000000000041bb29 in handle_fatal_signal (sig=sig@entry=11) at sysdep.c:1780 > #4 0x000000000051b9d8 in deliver_thread_signal (sig=sig@entry=11, handler=0x41bb1e ) at sysdep.c:1772 > #5 0x000000000051ba49 in deliver_fatal_thread_signal (sig=11) at sysdep.c:1792 > #6 handle_sigsegv (sig=11, siginfo=, arg=) at sysdep.c:1885 > #7 0x00007f201ab6f760 in () at /lib64/libc.so.6 > #8 0x000000000055c6b1 in make_lisp_ptr (type=, ptr=) > at /home/oldosfan/emacs-dev/emacs-gc/src/lisp.h:1269 > #9 set_next_vectorPython Exception : Cannot access memory at address 0xfe94cc8 > (p=#10 setup_on_free_list (nbytes=, v=0x2ce6c10) at alloc.c:2977 > #11 sweep_vectors () at alloc.c:3242 > #12 0x0000000000561328 in gc_sweep () at alloc.c:7255 > #13 garbage_collect () at alloc.c:6190 > #14 0x0000000000561811 in maybe_garbage_collect () at alloc.c:6053 > #15 0x00000000005804ad in maybe_gc () at /home/oldosfan/emacs-dev/emacs-gc/src/lisp.h:5161 > #16 eval_sub (form=0x1e753d3) at eval.c:2449 > #17 0x0000000000582149 in Feval (form=0x1e753d3, lexical=) at eval.c:2372 ^^^^ What is this form we are evaluating here? Can you show its contents? (Not that I think it is related to the crash.) Basically, GC was triggered by that evaluation, and it found some bad memory in some vector that it wanted to put on the free list. The challenge is to determine which Lisp vector caused that bad memory. Try looking at the data in frames 10 and 9 to figure out what was that bad vector. From debbugs-submit-bounces@debbugs.gnu.org Sat Nov 27 06:32:47 2021 Received: (at 52141) by debbugs.gnu.org; 27 Nov 2021 11:32:47 +0000 Received: from localhost ([127.0.0.1]:33071 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1mqvwl-0006sV-6z for submit@debbugs.gnu.org; Sat, 27 Nov 2021 06:32:47 -0500 Received: from sonic306-20.consmr.mail.ne1.yahoo.com ([66.163.189.82]:37466) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1mqvwj-0006sI-Vc for 52141@debbugs.gnu.org; Sat, 27 Nov 2021 06:32:46 -0500 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=yahoo.com; s=s2048; t=1638012760; bh=5e4kv6J14G7M9sp/8Abm8y0qBLcroNUPFNjW7wagQbU=; h=From:To:Cc:Subject:References:Date:In-Reply-To:From:Subject:Reply-To; b=Kge0vrq4NzJbjsyGpM5nQ6lrtDIZyo64nv6br/rTIdY99321PR+gJzX7PFsIgK5IYojjpI0i6aMH5vvkh85Uk46/w1Sx64+uJPQo2vOEGJ/iCMsX6KCNi8qe84gdK5OSE658Ch15wLNK0gWJz56mb9z5pNvIEdLtDhfrjWrMhPIv6dfhhjrHsfX7FdXBxlT74EcSt3nyzVqWZeb9t869hZounyzNxsoV/4oTtA4ulSgQ3+S9J7ls4i28ciqKGpY2ed/kPcC6i2pLxPhU16E1dljObpvUjwC1yG9sGsP2KPMkBZ9XTi4a6zuIhDVhFqolBZkkH0Vr2wQ1KKCKREUoUg== X-SONIC-DKIM-SIGN: v=1; 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Sat, 27 Nov 2021 11:32:40 +0000 Received: by kubenode510.mail-prod1.omega.sg3.yahoo.com (VZM Hermes SMTP Server) with ESMTPA ID 8ce3342b4faf0221b7af5d2d27741b0c; Sat, 27 Nov 2021 11:32:35 +0000 (UTC) From: Po Lu To: Eli Zaretskii Subject: Re: bug#52141: 29.0.50; Crash during redisplay References: <87o865c13p.fsf.ref@yahoo.com> <87o865c13p.fsf@yahoo.com> <83sfvhzvxo.fsf@gnu.org> Date: Sat, 27 Nov 2021 19:32:29 +0800 In-Reply-To: <83sfvhzvxo.fsf@gnu.org> (Eli Zaretskii's message of "Sat, 27 Nov 2021 13:20:51 +0200") Message-ID: <87bl25bzqq.fsf@yahoo.com> User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/28.0.60 (gnu/linux) MIME-Version: 1.0 Content-Type: text/plain X-Mailer: WebService/1.1.19306 mail.backend.jedi.jws.acl:role.jedi.acl.token.atz.jws.hermes.yahoo Content-Length: 2180 X-Spam-Score: 0.0 (/) X-Debbugs-Envelope-To: 52141 Cc: 52141@debbugs.gnu.org X-BeenThere: debbugs-submit@debbugs.gnu.org X-Mailman-Version: 2.1.18 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: debbugs-submit-bounces@debbugs.gnu.org Sender: "Debbugs-submit" X-Spam-Score: -1.0 (-) Eli Zaretskii writes: >> Date: Sat, 27 Nov 2021 19:03:06 +0800 >> From: Po Lu via "Bug reports for GNU Emacs, >> the Swiss army knife of text editors" >> >> >> I was typing a random document to test something, and I got the >> following crash out of the blue: >> >> #0 0x00007f201abbc85c in __pthread_kill_implementation () at /lib64/libc.so.6 >> #1 0x00007f201ab6f6b6 in raise () at /lib64/libc.so.6 >> #2 0x000000000041b6aa in terminate_due_to_signal (sig=sig@entry=11, backtrace_limit=backtrace_limit@entry=40) at emacs.c:443 >> #3 0x000000000041bb29 in handle_fatal_signal (sig=sig@entry=11) at sysdep.c:1780 >> #4 0x000000000051b9d8 in deliver_thread_signal (sig=sig@entry=11, handler=0x41bb1e ) at sysdep.c:1772 >> #5 0x000000000051ba49 in deliver_fatal_thread_signal (sig=11) at sysdep.c:1792 >> #6 handle_sigsegv (sig=11, siginfo=, arg=) at sysdep.c:1885 >> #7 0x00007f201ab6f760 in () at /lib64/libc.so.6 >> #8 0x000000000055c6b1 in make_lisp_ptr (type=, ptr=) >> at /home/oldosfan/emacs-dev/emacs-gc/src/lisp.h:1269 >> #9 set_next_vectorPython Exception : Cannot access memory at address 0xfe94cc8 >> (p=#10 setup_on_free_list (nbytes=, v=0x2ce6c10) at alloc.c:2977 >> #11 sweep_vectors () at alloc.c:3242 >> #12 0x0000000000561328 in gc_sweep () at alloc.c:7255 >> #13 garbage_collect () at alloc.c:6190 >> #14 0x0000000000561811 in maybe_garbage_collect () at alloc.c:6053 >> #15 0x00000000005804ad in maybe_gc () at /home/oldosfan/emacs-dev/emacs-gc/src/lisp.h:5161 >> #16 eval_sub (form=0x1e753d3) at eval.c:2449 >> #17 0x0000000000582149 in Feval (form=0x1e753d3, lexical=) at eval.c:2372 > ^^^^ > What is this form we are evaluating here? Can you show its contents? > (Not that I think it is related to the crash.) Its type is Lisp_Cons. However, its address is invalid. Running `xcons' in gdb complains: (gdb) xcons $9 = (struct Lisp_Cons *) 0x1e753d0 Cannot access memory at address 0x1e753d0 Thanks. From debbugs-submit-bounces@debbugs.gnu.org Sat Nov 27 06:37:35 2021 Received: (at 52141) by debbugs.gnu.org; 27 Nov 2021 11:37:35 +0000 Received: from localhost ([127.0.0.1]:33079 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1mqw1P-0006zo-1f for submit@debbugs.gnu.org; Sat, 27 Nov 2021 06:37:35 -0500 Received: from eggs.gnu.org ([209.51.188.92]:58804) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1mqw1N-0006zd-LT for 52141@debbugs.gnu.org; Sat, 27 Nov 2021 06:37:34 -0500 Received: from [2001:470:142:3::e] (port=56116 helo=fencepost.gnu.org) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1mqw1I-0007IC-Ch; Sat, 27 Nov 2021 06:37:28 -0500 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=gnu.org; s=fencepost-gnu-org; h=References:Subject:In-Reply-To:To:From:Date: mime-version; bh=LoZeRDBPO6wDIFQrs4+d/FGbvsKD1kr2k3IvPZGvUJ8=; b=KTicf6c3zZb3 12fADR5FYMhFzIRuIGhwIqP+LoXKpxtktmv0+4jht5tpFwApclTGfPnXv8gY0KFOZDP3UF04j8yWz v+nM3j2V8au3z7COYN+khN5amxMCnFsWF4RkF+JGf+6qPAMIxIoNPSBMIIa1k7akuaeTiCdbp1fmb jn6CqYd1eGehsNydhApaKhquPh7xvMgr52GZwYBvgBMfXsZCxmEifZiwp8WnMz4WL1fZ0TVYKsuwf EiW5PuWojXSqRqAZx/0V/kvjrWjdhD61miVK6U7cW4LZlSwlecGpWO3dbAuwG2ze9W2NM/w16K/L9 t4X5rOimGbP70eyp+ROs7Q==; Received: from [87.69.77.57] (port=3973 helo=home-c4e4a596f7) by fencepost.gnu.org with esmtpsa (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1mqw1H-0000C7-Kc; Sat, 27 Nov 2021 06:37:27 -0500 Date: Sat, 27 Nov 2021 13:37:35 +0200 Message-Id: <83lf19zv5s.fsf@gnu.org> From: Eli Zaretskii To: Po Lu In-Reply-To: <87bl25bzqq.fsf@yahoo.com> (message from Po Lu on Sat, 27 Nov 2021 19:32:29 +0800) Subject: Re: bug#52141: 29.0.50; Crash during redisplay References: <87o865c13p.fsf.ref@yahoo.com> <87o865c13p.fsf@yahoo.com> <83sfvhzvxo.fsf@gnu.org> <87bl25bzqq.fsf@yahoo.com> X-Spam-Score: -2.3 (--) X-Debbugs-Envelope-To: 52141 Cc: 52141@debbugs.gnu.org X-BeenThere: debbugs-submit@debbugs.gnu.org X-Mailman-Version: 2.1.18 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: debbugs-submit-bounces@debbugs.gnu.org Sender: "Debbugs-submit" X-Spam-Score: -3.3 (---) > From: Po Lu > Cc: 52141@debbugs.gnu.org > Date: Sat, 27 Nov 2021 19:32:29 +0800 > > >> #9 set_next_vectorPython Exception : Cannot access memory at address 0xfe94cc8 > >> (p=#10 setup_on_free_list (nbytes=, v=0x2ce6c10) at alloc.c:2977 > >> #11 sweep_vectors () at alloc.c:3242 > >> #12 0x0000000000561328 in gc_sweep () at alloc.c:7255 > >> #13 garbage_collect () at alloc.c:6190 > >> #14 0x0000000000561811 in maybe_garbage_collect () at alloc.c:6053 > >> #15 0x00000000005804ad in maybe_gc () at /home/oldosfan/emacs-dev/emacs-gc/src/lisp.h:5161 > >> #16 eval_sub (form=0x1e753d3) at eval.c:2449 > >> #17 0x0000000000582149 in Feval (form=0x1e753d3, lexical=) at eval.c:2372 > > ^^^^ > > What is this form we are evaluating here? Can you show its contents? > > (Not that I think it is related to the crash.) > > Its type is Lisp_Cons. However, its address is invalid. Running > `xcons' in gdb complains: > > (gdb) xcons > $9 = (struct Lisp_Cons *) 0x1e753d0 > Cannot access memory at address 0x1e753d0 Hmm... and the address is very different from the one which caused the segfault. Strange. Any ideas, anyone? From debbugs-submit-bounces@debbugs.gnu.org Sat Nov 27 07:01:08 2021 Received: (at 52141) by debbugs.gnu.org; 27 Nov 2021 12:01:08 +0000 Received: from localhost ([127.0.0.1]:33095 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1mqwOC-0007by-Ed for submit@debbugs.gnu.org; Sat, 27 Nov 2021 07:01:08 -0500 Received: from mail-out.m-online.net ([212.18.0.9]:53383) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1mqwO7-0007bS-Ok for 52141@debbugs.gnu.org; Sat, 27 Nov 2021 07:01:07 -0500 Received: from frontend01.mail.m-online.net (unknown [192.168.8.182]) by mail-out.m-online.net (Postfix) with ESMTP id 4J1VZ62CRLz1r7lS; Sat, 27 Nov 2021 13:01:02 +0100 (CET) Received: from localhost (dynscan1.mnet-online.de [192.168.6.70]) by mail.m-online.net (Postfix) with ESMTP id 4J1VZ60Ftfz1qqkB; Sat, 27 Nov 2021 13:01:02 +0100 (CET) X-Virus-Scanned: amavisd-new at mnet-online.de Received: from mail.mnet-online.de ([192.168.8.182]) by localhost (dynscan1.mail.m-online.net [192.168.6.70]) (amavisd-new, port 10024) with ESMTP id dpFJJS55Dyxs; Sat, 27 Nov 2021 13:01:01 +0100 (CET) X-Auth-Info: uO2rMznKORpF8GWuySVWlu+ML6bMfHOWd5GkNe9Zi+z79wXIHndVOjH3faBPmfl1 Received: from igel.home (ppp-46-244-164-118.dynamic.mnet-online.de [46.244.164.118]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.mnet-online.de (Postfix) with ESMTPSA; Sat, 27 Nov 2021 13:01:01 +0100 (CET) Received: by igel.home (Postfix, from userid 1000) id 81AED2C3977; Sat, 27 Nov 2021 13:01:00 +0100 (CET) From: Andreas Schwab To: Eli Zaretskii Subject: Re: bug#52141: 29.0.50; Crash during redisplay References: <87o865c13p.fsf.ref@yahoo.com> <87o865c13p.fsf@yahoo.com> <83sfvhzvxo.fsf@gnu.org> <87bl25bzqq.fsf@yahoo.com> <83lf19zv5s.fsf@gnu.org> X-Yow: YOW!! I am having FUN!! Date: Sat, 27 Nov 2021 13:01:00 +0100 In-Reply-To: <83lf19zv5s.fsf@gnu.org> (Eli Zaretskii's message of "Sat, 27 Nov 2021 13:37:35 +0200") Message-ID: <87r1b13j0j.fsf@igel.home> User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/27.2 (gnu/linux) MIME-Version: 1.0 Content-Type: text/plain X-Spam-Score: -0.5 (/) X-Debbugs-Envelope-To: 52141 Cc: Po Lu , 52141@debbugs.gnu.org X-BeenThere: debbugs-submit@debbugs.gnu.org X-Mailman-Version: 2.1.18 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: debbugs-submit-bounces@debbugs.gnu.org Sender: "Debbugs-submit" X-Spam-Score: -1.5 (-) On Nov 27 2021, Eli Zaretskii wrote: >> From: Po Lu >> Cc: 52141@debbugs.gnu.org >> Date: Sat, 27 Nov 2021 19:32:29 +0800 >> >> >> #9 set_next_vectorPython Exception : Cannot access memory at address 0xfe94cc8 >> >> (p=#10 setup_on_free_list (nbytes=, v=0x2ce6c10) at alloc.c:2977 >> >> #11 sweep_vectors () at alloc.c:3242 >> >> #12 0x0000000000561328 in gc_sweep () at alloc.c:7255 >> >> #13 garbage_collect () at alloc.c:6190 >> >> #14 0x0000000000561811 in maybe_garbage_collect () at alloc.c:6053 >> >> #15 0x00000000005804ad in maybe_gc () at /home/oldosfan/emacs-dev/emacs-gc/src/lisp.h:5161 >> >> #16 eval_sub (form=0x1e753d3) at eval.c:2449 >> >> #17 0x0000000000582149 in Feval (form=0x1e753d3, lexical=) at eval.c:2372 >> > ^^^^ >> > What is this form we are evaluating here? Can you show its contents? >> > (Not that I think it is related to the crash.) >> >> Its type is Lisp_Cons. However, its address is invalid. Running >> `xcons' in gdb complains: >> >> (gdb) xcons >> $9 = (struct Lisp_Cons *) 0x1e753d0 >> Cannot access memory at address 0x1e753d0 > > Hmm... and the address is very different from the one which caused the > segfault. Strange. There could have been several corruptions that only surfaced just now. Andreas. -- Andreas Schwab, schwab@linux-m68k.org GPG Key fingerprint = 7578 EB47 D4E5 4D69 2510 2552 DF73 E780 A9DA AEC1 "And now for something completely different." 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Sat, 27 Nov 2021 15:59:20 +0000 Received: by kubenode520.mail-prod1.omega.ir2.yahoo.com (VZM Hermes SMTP Server) with ESMTPA ID 2ded406fafa68ab3d3c4acb00096626c; Sat, 27 Nov 2021 15:59:17 +0000 (UTC) From: =?utf-8?Q?Daniel_Mart=C3=ADn?= To: Eli Zaretskii Subject: Re: bug#52141: 29.0.50; Crash during redisplay References: <87o865c13p.fsf.ref@yahoo.com> <87o865c13p.fsf@yahoo.com> <83sfvhzvxo.fsf@gnu.org> <87bl25bzqq.fsf@yahoo.com> <83lf19zv5s.fsf@gnu.org> Date: Sat, 27 Nov 2021 16:59:16 +0100 In-Reply-To: <83lf19zv5s.fsf@gnu.org> (Eli Zaretskii's message of "Sat, 27 Nov 2021 13:37:35 +0200") Message-ID: User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/27.2 (darwin) MIME-Version: 1.0 Content-Type: text/plain X-Mailer: WebService/1.1.19306 mail.backend.jedi.jws.acl:role.jedi.acl.token.atz.jws.hermes.yahoo Content-Length: 605 X-Spam-Score: 0.2 (/) X-Debbugs-Envelope-To: 52141 Cc: Po Lu , 52141@debbugs.gnu.org X-BeenThere: debbugs-submit@debbugs.gnu.org X-Mailman-Version: 2.1.18 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: debbugs-submit-bounces@debbugs.gnu.org Sender: "Debbugs-submit" X-Spam-Score: -0.8 (/) Eli Zaretskii writes: >> >> Its type is Lisp_Cons. However, its address is invalid. Running >> `xcons' in gdb complains: >> >> (gdb) xcons >> $9 = (struct Lisp_Cons *) 0x1e753d0 >> Cannot access memory at address 0x1e753d0 > > Hmm... and the address is very different from the one which caused the > segfault. Strange. > > Any ideas, anyone? Is it possible to run that Emacs instance with some kind of memory sanitizer enabled (ASAN, Valgrind...)? That may help catch the potential memory corruption at the point it happens, not at the point the garbage collector wants to free it. From debbugs-submit-bounces@debbugs.gnu.org Sat Nov 27 11:56:19 2021 Received: (at 52141) by debbugs.gnu.org; 27 Nov 2021 16:56:19 +0000 Received: from localhost ([127.0.0.1]:34489 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1mr0zr-0001I6-M6 for submit@debbugs.gnu.org; Sat, 27 Nov 2021 11:56:19 -0500 Received: from eggs.gnu.org ([209.51.188.92]:53046) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1mr0zq-0001Hr-2h for 52141@debbugs.gnu.org; Sat, 27 Nov 2021 11:56:18 -0500 Received: from [2001:470:142:3::e] (port=35894 helo=fencepost.gnu.org) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1mr0zk-0007hP-9G; Sat, 27 Nov 2021 11:56:12 -0500 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=gnu.org; s=fencepost-gnu-org; h=MIME-version:References:Subject:In-Reply-To:To:From: Date; bh=OpSz6p8eFMbTO4l9cBKmIfN57n1Izb0tWHHOs/1Ak/w=; b=Dgw6Fj3ij6KVmpL6QK10 w64KkWTeR5hvjy8/LDj1yY11eQyNhltNz2WoBXqA/vlkiCu2fN86FhUuSleFzRioD5w08I5/kmfgd ma1C+/xS5vH1FV42MavECRd+RDKNbUn68Jmz9Rq4AQoEtN2zhaCBvUw9od383b0XONwkUXAax3ke2 m6C29FmHasxGaCBUbY4+dBbLCo0G8qFCGH6HkhdIMDbGK89usDOtMaSsrnCd4nXg+i+CGhGxjGz3g dxmPMK6PAQAKcAvh0bR6qJPRjeB4uTzcVmar8d6b5sYqh0LFrqhKKY4s/ItgCKQu1E7lx1Tie15th yiG4TO6pdSLmtw==; Received: from [87.69.77.57] (port=3949 helo=home-c4e4a596f7) by fencepost.gnu.org with esmtpsa (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1mr0zj-0008Hx-8n; Sat, 27 Nov 2021 11:56:12 -0500 Date: Sat, 27 Nov 2021 18:56:18 +0200 Message-Id: <83r1b1y1u5.fsf@gnu.org> From: Eli Zaretskii To: Daniel =?iso-8859-1?Q?Mart=EDn?= In-Reply-To: (message from Daniel =?iso-8859-1?Q?Mart=EDn?= on Sat, 27 Nov 2021 16:59:16 +0100) Subject: Re: bug#52141: 29.0.50; Crash during redisplay References: <87o865c13p.fsf.ref@yahoo.com> <87o865c13p.fsf@yahoo.com> <83sfvhzvxo.fsf@gnu.org> <87bl25bzqq.fsf@yahoo.com> <83lf19zv5s.fsf@gnu.org> MIME-version: 1.0 Content-type: text/plain; charset=iso-8859-1 Content-Transfer-Encoding: 8bit X-Spam-Score: -2.3 (--) X-Debbugs-Envelope-To: 52141 Cc: luangruo@yahoo.com, 52141@debbugs.gnu.org X-BeenThere: debbugs-submit@debbugs.gnu.org X-Mailman-Version: 2.1.18 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: debbugs-submit-bounces@debbugs.gnu.org Sender: "Debbugs-submit" X-Spam-Score: -3.3 (---) > From: Daniel Martín > Cc: Po Lu , 52141@debbugs.gnu.org > Date: Sat, 27 Nov 2021 16:59:16 +0100 > > Is it possible to run that Emacs instance with some kind of memory > sanitizer enabled (ASAN, Valgrind...)? That may help catch the > potential memory corruption at the point it happens, not at the point > the garbage collector wants to free it. It's possible, see etc/DEBUG. But it may not be practical, since at least Valgrind slows down Emacs tremendously. But if this will happen frequently enough, it's worth the try. 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Sun, 28 Nov 2021 00:43:31 +0000 Received: by kubenode516.mail-prod1.omega.sg3.yahoo.com (VZM Hermes SMTP Server) with ESMTPA ID 31ce032882576e23fea1b17edd63d5e0; Sun, 28 Nov 2021 00:43:24 +0000 (UTC) From: Po Lu To: Daniel =?utf-8?Q?Mart=C3=ADn?= Subject: Re: bug#52141: 29.0.50; Crash during redisplay References: <87o865c13p.fsf.ref@yahoo.com> <87o865c13p.fsf@yahoo.com> <83sfvhzvxo.fsf@gnu.org> <87bl25bzqq.fsf@yahoo.com> <83lf19zv5s.fsf@gnu.org> Date: Sun, 28 Nov 2021 08:43:19 +0800 In-Reply-To: ("Daniel =?utf-8?Q?Mart=C3=ADn=22's?= message of "Sat, 27 Nov 2021 16:59:16 +0100") Message-ID: <87v90d85zs.fsf@yahoo.com> User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/28.0.60 (gnu/linux) MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: quoted-printable X-Mailer: WebService/1.1.19306 mail.backend.jedi.jws.acl:role.jedi.acl.token.atz.jws.hermes.yahoo Content-Length: 439 X-Spam-Score: 0.0 (/) X-Debbugs-Envelope-To: 52141 Cc: Eli Zaretskii , 52141@debbugs.gnu.org X-BeenThere: debbugs-submit@debbugs.gnu.org X-Mailman-Version: 2.1.18 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: debbugs-submit-bounces@debbugs.gnu.org Sender: "Debbugs-submit" X-Spam-Score: -1.0 (-) Daniel Mart=C3=ADn writes: > Is it possible to run that Emacs instance with some kind of memory > sanitizer enabled (ASAN, Valgrind...)? That may help catch the > potential memory corruption at the point it happens, not at the point > the garbage collector wants to free it. I don't know how to reproduce this bug, so I don't think Valgrind will work well. But I will run a build with asan for a few days, thanks.