From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.io!.POSTED.blaine.gmane.org!not-for-mail From: Eli Zaretskii Newsgroups: gmane.emacs.bugs Subject: bug#52141: 29.0.50; Crash during redisplay Date: Sat, 27 Nov 2021 18:56:18 +0200 Message-ID: <83r1b1y1u5.fsf@gnu.org> 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 Injection-Info: ciao.gmane.io; posting-host="blaine.gmane.org:116.202.254.214"; logging-data="40777"; mail-complaints-to="usenet@ciao.gmane.io" Cc: luangruo@yahoo.com, 52141@debbugs.gnu.org To: Daniel =?UTF-8?Q?Mart=C3=ADn?= Original-X-From: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane-mx.org@gnu.org Sat Nov 27 17:57:11 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 1mr10h-000APJ-Pa for geb-bug-gnu-emacs@m.gmane-mx.org; Sat, 27 Nov 2021 17:57:11 +0100 Original-Received: from localhost ([::1]:57510 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1mr10g-00023A-DL for geb-bug-gnu-emacs@m.gmane-mx.org; Sat, 27 Nov 2021 11:57:10 -0500 Original-Received: from eggs.gnu.org ([209.51.188.92]:53896) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1mr10Y-000231-6q for bug-gnu-emacs@gnu.org; Sat, 27 Nov 2021 11:57:02 -0500 Original-Received: from debbugs.gnu.org ([209.51.188.43]:51176) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_128_GCM_SHA256:128) (Exim 4.90_1) (envelope-from ) id 1mr10X-0007kY-Us for bug-gnu-emacs@gnu.org; Sat, 27 Nov 2021 11:57:01 -0500 Original-Received: from Debian-debbugs by debbugs.gnu.org with local (Exim 4.84_2) (envelope-from ) id 1mr10X-0001J4-T3 for bug-gnu-emacs@gnu.org; Sat, 27 Nov 2021 11:57:01 -0500 X-Loop: help-debbugs@gnu.org Resent-From: Eli Zaretskii Original-Sender: "Debbugs-submit" Resent-CC: bug-gnu-emacs@gnu.org Resent-Date: Sat, 27 Nov 2021 16:57:01 +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=B52141.16380321794971 (code B ref 52141); Sat, 27 Nov 2021 16:57:01 +0000 Original-Received: (at 52141) by debbugs.gnu.org; 27 Nov 2021 16:56:19 +0000 Original-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 Original-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 Original-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==; Original-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 In-Reply-To: (message from Daniel =?UTF-8?Q?Mart=C3=ADn?= on Sat, 27 Nov 2021 16:59:16 +0100) 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:220943 Archived-At: > 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.