From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.io!.POSTED.blaine.gmane.org!not-for-mail From: Daniel =?UTF-8?Q?Mart=C3=ADn?= via "Bug reports for GNU Emacs, the Swiss army knife of text editors" Newsgroups: gmane.emacs.bugs Subject: bug#52141: 29.0.50; Crash during redisplay Date: Sat, 27 Nov 2021 16:59:16 +0100 Message-ID: References: <87o865c13p.fsf.ref@yahoo.com> <87o865c13p.fsf@yahoo.com> <83sfvhzvxo.fsf@gnu.org> <87bl25bzqq.fsf@yahoo.com> <83lf19zv5s.fsf@gnu.org> Reply-To: Daniel =?UTF-8?Q?Mart=C3=ADn?= Mime-Version: 1.0 Content-Type: text/plain Injection-Info: ciao.gmane.io; posting-host="blaine.gmane.org:116.202.254.214"; logging-data="5285"; mail-complaints-to="usenet@ciao.gmane.io" User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/27.2 (darwin) Cc: Po Lu , 52141@debbugs.gnu.org To: Eli Zaretskii Original-X-From: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane-mx.org@gnu.org Sat Nov 27 17:00:25 2021 Return-path: Envelope-to: geb-bug-gnu-emacs@m.gmane-mx.org Original-Received: from lists.gnu.org ([209.51.188.17]) by ciao.gmane.io with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.92) (envelope-from ) id 1mr07k-00013Z-IH for geb-bug-gnu-emacs@m.gmane-mx.org; Sat, 27 Nov 2021 17:00:24 +0100 Original-Received: from localhost ([::1]:46190 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1mr07i-0007Jc-UW for geb-bug-gnu-emacs@m.gmane-mx.org; Sat, 27 Nov 2021 11:00:22 -0500 Original-Received: from eggs.gnu.org ([209.51.188.92]:44880) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1mr07O-0007Ie-NW for bug-gnu-emacs@gnu.org; Sat, 27 Nov 2021 11:00:02 -0500 Original-Received: from debbugs.gnu.org ([209.51.188.43]:51131) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_128_GCM_SHA256:128) (Exim 4.90_1) (envelope-from ) id 1mr07O-00011f-Cl for bug-gnu-emacs@gnu.org; Sat, 27 Nov 2021 11:00:02 -0500 Original-Received: from Debian-debbugs by debbugs.gnu.org with local (Exim 4.84_2) (envelope-from ) id 1mr07O-0008Df-Ba for bug-gnu-emacs@gnu.org; Sat, 27 Nov 2021 11:00:02 -0500 X-Loop: help-debbugs@gnu.org Resent-From: Daniel =?UTF-8?Q?Mart=C3=ADn?= Original-Sender: "Debbugs-submit" Resent-CC: bug-gnu-emacs@gnu.org Resent-Date: Sat, 27 Nov 2021 16:00:02 +0000 Resent-Message-ID: Resent-Sender: help-debbugs@gnu.org X-GNU-PR-Message: followup 52141 X-GNU-PR-Package: emacs Original-Received: via spool by 52141-submit@debbugs.gnu.org id=B52141.163802876831514 (code B ref 52141); Sat, 27 Nov 2021 16:00:02 +0000 Original-Received: (at 52141) by debbugs.gnu.org; 27 Nov 2021 15:59:28 +0000 Original-Received: from localhost ([127.0.0.1]:34444 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1mr06q-0008CD-8E for submit@debbugs.gnu.org; Sat, 27 Nov 2021 10:59:28 -0500 Original-Received: from sonic301-21.consmr.mail.ir2.yahoo.com ([77.238.176.98]:34047) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1mr06o-0008Bz-F5 for 52141@debbugs.gnu.org; Sat, 27 Nov 2021 10:59:26 -0500 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=yahoo.es; s=s2048; t=1638028760; bh=ktVDDGl/btZuxGWFgPHAvH3ZXXeWg7uNWZB2l+CaO5Y=; h=From:To:Cc:Subject:References:Date:In-Reply-To:From:Subject:Reply-To; b=GnK69KgugUprE37/peJ54rfnhSRLsiXYEk7H8A1kJl+LClM7C6r1vaA4XDFvlOTk/5gt+3ago7jnC7ovQN5UTZ2WGfE4Qgksm5nQAPY+JYe32g7iM/DZc4eVAERM3xtsIN6h8SjaF6bF5emsvCtvrC0VkI8NjDSil+e2yKHtUj3c272G+JQjkZClywlV9YKXXy+YkDD6gluDhOOoqKVgXUK+qcx7Zal0Ntf7niFqLemKYGjmffS7ooC5Es6lYAWeXvVaDdgtLjAl+cLET45R3Pm34TZNqgi9K2mzOfH1efzC16DDhWQdzNOftyxSvCrUqwTZg2yX6LhJ174gFs1Mog== X-SONIC-DKIM-SIGN: v=1; a=rsa-sha256; c=relaxed/relaxed; d=yahoo.com; s=s2048; t=1638028760; bh=VIuYBKQhzSoscIBlxd2P/6KTOU+QjyjfY/ga2dEBmUw=; h=X-Sonic-MF:From:To:Subject:Date:From:Subject; b=rgjbMOmDleYjogbY67E581LKiRumv+ao1U5RHGsJY1kYBUK2+dUYAzPcyPNIMSYQ1ElGO8xz49YzkFv9wvJgUXOhMhO2rU69+eY4JS7WCIgMZ5Q1mGBfYAn5aR4CSne8WS4xBi5Jar3AYM4scXr8ScDyRW5tjRq8E1UCHEZAmxKt7wEuAwKvYV3EO+ZTjLRLLouQza2vqzkyNoZVqKRlLMw6OF8Jy0NVeTqig1sM2q6caMUg7YCi+Q9olz/jKPERCOWbQ2NBZNfDNOGwZurmtbR3XLAkcNzJxwaoBQf2DfsyOs5vfHRYoeDC1OaDOqeGvDoM6GtrYQOh/8eaw6O4HA== X-YMail-OSG: gjRzXb4VM1lO78cU66EYCyLoH1m4.bjP0oI3Pi93bwzvy4mKGZLPtjEPfGjDt_7 3.O9ehpDl1waZuM2LG7mtVU2esWR4clsdK0N1470Wzfu7c7HPssG8EMR3iudy1yUz1X8SxYgKgIh fKJKrvGjocTgdzGZPO3N.9oGo6yYhGhMkWat9o.204wcf_TsN3k_3R94ZK0NfPuA2phpK.EfWqmk 2qS7brqHruyA1oKR7rtgvRMBUjD078s5p10YokVvlVCnAHkyY2nhZdCI_gtTATFzt.8Nq3roOSJv KqmhdWrnE47DubDlHs4mTPL15qt7gs3JGR0Oi2I0ocw9tX5IPS40WGJ1y3Y0pMjQ.l3cZTXwu9RJ SPNRxB8xGUycdaoXfLM6iDNJC9M0dfdq6YQoMGo3bdm8_otsm5XHXNcs871hG9YHCAw3484kFy2j dd6J.mQV.D3cAGjjjQujOANvGM3Zw2iPB.nkif1UDI8AzmvgZqZyNVyjrXM4PpwJlCs6bY7fUfa3 Sh2OUHpjzHuBMgl.b0Az6PktQ4oecjp38Chw3TmsBtEWxzLxxfqYxtbM_FaSRLmc0oJylsiVTaZ6 pgwG5m6VIa6jOUy.rAbxJcaEnn2N4a1qFatW3Kyav1cXW5BX1bw5CCPtvuJdP6V2.KJqTHqbwjUT WjEr65dvq6aNpHNbv_nItgzUqbyaL8yBJxb4u0_VYKx_fWrrkXsAv8EcDncE8TfcB_xPoHzueMqQ 0gLg4b_QE7R25pZphLf.4EdF5Chhmasg7BDw6LeADp0Z_OFH8q1d4puFK1E5wHEPZSC8wfEGzIQC AUdRE3ASYQ8JyyD718efY3Fj5sjH6_79XPKdU8tMVM X-Sonic-MF: Original-Received: from sonic.gate.mail.ne1.yahoo.com by sonic301.consmr.mail.ir2.yahoo.com with HTTP; Sat, 27 Nov 2021 15:59:20 +0000 Original-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) In-Reply-To: <83lf19zv5s.fsf@gnu.org> (Eli Zaretskii's message of "Sat, 27 Nov 2021 13:37:35 +0200") X-Mailer: WebService/1.1.19306 mail.backend.jedi.jws.acl:role.jedi.acl.token.atz.jws.hermes.yahoo X-BeenThere: debbugs-submit@debbugs.gnu.org X-Mailman-Version: 2.1.18 Precedence: list X-BeenThere: bug-gnu-emacs@gnu.org List-Id: "Bug reports for GNU Emacs, the Swiss army knife of text editors" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane-mx.org@gnu.org Original-Sender: "bug-gnu-emacs" Xref: news.gmane.io gmane.emacs.bugs:220940 Archived-At: 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.