From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.io!.POSTED.ciao.gmane.io!not-for-mail From: Eli Zaretskii Newsgroups: gmane.emacs.devel Subject: Re: another unhelpful backtrace from redisplay-internal Date: Sat, 07 Mar 2020 18:14:22 +0200 Message-ID: <83a74s9m75.fsf@gnu.org> References: Injection-Info: ciao.gmane.io; posting-host="ciao.gmane.io:159.69.161.202"; logging-data="111931"; mail-complaints-to="usenet@ciao.gmane.io" Cc: emacs-devel@gnu.org To: Madhu Original-X-From: emacs-devel-bounces+ged-emacs-devel=m.gmane-mx.org@gnu.org Sat Mar 07 17:14:54 2020 Return-path: Envelope-to: ged-emacs-devel@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 1jAc6H-000T2t-Ep for ged-emacs-devel@m.gmane-mx.org; Sat, 07 Mar 2020 17:14:53 +0100 Original-Received: from localhost ([::1]:50174 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1jAc6G-0001Ia-HL for ged-emacs-devel@m.gmane-mx.org; Sat, 07 Mar 2020 11:14:52 -0500 Original-Received: from eggs.gnu.org ([2001:470:142:3::10]:41705) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1jAc5n-0000rt-Rm for emacs-devel@gnu.org; Sat, 07 Mar 2020 11:14:24 -0500 Original-Received: from fencepost.gnu.org ([2001:470:142:3::e]:40707) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1jAc5n-0006WV-Df; Sat, 07 Mar 2020 11:14:23 -0500 Original-Received: from [176.228.60.248] (port=2466 helo=home-c4e4a596f7) by fencepost.gnu.org with esmtpsa (TLS1.2:RSA_AES_256_CBC_SHA1:256) (Exim 4.82) (envelope-from ) id 1jAc5m-0005ir-NZ; Sat, 07 Mar 2020 11:14:23 -0500 In-Reply-To: (message from Madhu on Sat, 07 Mar 2020 21:02:36 +0530) X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.2.x-3.x [generic] X-BeenThere: emacs-devel@gnu.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: "Emacs development discussions." List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: emacs-devel-bounces+ged-emacs-devel=m.gmane-mx.org@gnu.org Original-Sender: "Emacs-devel" Xref: news.gmane.io gmane.emacs.devel:245316 Archived-At: > From: Madhu > Date: Sat, 07 Mar 2020 21:02:36 +0530 > > I have a sure recipe for a crash in recent emacs but the configuration > is complex and I'm afraid I don't have a simple test case. I'm posting > the initial backtrace here in case anyone can suggest things I should > look for, or some ways I could narrow it down. "Recent emacs" from which branch of the repository? Also, how recent? (Crashes should be reported with "M-x report-emacs-bug", as there's no doubt they are bugs of some sort, and therefore no reason to discuss them here. Using report-emacs-bug would have included all the information I'm asking about above, automatically.) > Emacs is compiled with -g3 -O2, and I'm not sure if all the info to > debug this is available. The backtrace shows incorrect files and lines, and most values are "optimized out" (and others are therefore suspect to not be the truth). > Any suggestions please? Rebuild without optimizations and try reproducing the problem with your recipe. If successful, post the backtrace. Thanks.