From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.io!.POSTED.blaine.gmane.org!not-for-mail From: Michael Heerdegen Newsgroups: gmane.emacs.bugs Subject: bug#65622: Inappropriate suppression of backtrace on an error Date: Thu, 31 Aug 2023 01:16:42 +0200 Message-ID: <87h6ogktnp.fsf@web.de> References: Mime-Version: 1.0 Content-Type: text/plain Injection-Info: ciao.gmane.io; posting-host="blaine.gmane.org:116.202.254.214"; logging-data="20122"; mail-complaints-to="usenet@ciao.gmane.io" User-Agent: Gnus/5.13 (Gnus v5.13) Cc: 65622@debbugs.gnu.org To: Alan Mackenzie Original-X-From: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane-mx.org@gnu.org Thu Aug 31 01:18:05 2023 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 1qbURp-00052V-76 for geb-bug-gnu-emacs@m.gmane-mx.org; Thu, 31 Aug 2023 01:18:05 +0200 Original-Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1qbURh-0000lE-3q; 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Thu, 31 Aug 2023 01:16:43 +0200 In-Reply-To: (Alan Mackenzie's message of "Wed, 30 Aug 2023 13:08:26 +0000") X-Provags-ID: V03:K1:XOmfvADgJUNDPJTlPpEmXuR8bs9yZVeBWO4Q1HU4NKnenxrSQyf uIjxHNjQBLYyC0xkdPb5xrJnc9Z6zCTKZui/jnlOMLnjtukd+ueFRnjHM1IVnve8A2GBISc Dp4sgkxiX9zWwLMLJUpzkqwlXnxx6zMeJI4euVrMWZ+JUPXVeN2qIXunHsq3el6RR3xJgcC 9TLR4iRq/0A9lQNH2e9BQ== UI-OutboundReport: notjunk:1;M01:P0:ZCfrC/yE/iI=;A1UmbEdbRTl/T0DD0RoIDfjbsN7 3ESyas/0BIsXYhSlziDLTbtDHanihWogfWi+hpxwLj8kRNrOxYwWijUGciAlnSl0pjQUsS3JW QweAr1ZtUhIkGNygXBVY59Jtdmfowc7+ZAUirOp97BRc4IPmHaSuVnI26pJw/CAtsdmF4JpjE RKkd8VmC74N0a/6w+3ayJqBoWlTk2PCTnRYjoAkuF8grv1a6AR87hl7eqSvdPM/DGm67xAqps SwtA3ToWgDQ0x5w8IwFeQWN2Q9AxCYhMFbrxWCUVirOH8NXowdwHe90K4sVhFDRRK8l9fHc2X ZXAG63eX6oBFzNu91fuFVLF+kFvbNxkGKB/FKmK8MczhaAjMEBdFaeh6vmGLCiSVzh2Jv7IUe mekxq+EqcmLtNRvTJ/Kj5ZtU7Ji4UmB9fBc112k9MYqVCKruUPG1x+EU2VNkf7JFg85B5N3yO oZUF1FAutkMYNNjiBo3tPrK9VAlJZrVuzRMpqSqkt4CAwcVbuwU9Xz7rFCFUA2SST+JKTqy8G f7w/ZjJv2ZRX4WrQLFUNqn/CZzTgDHvrcGMia+rTp2NXiElrq5Hd3v+ER+is6gejnOZ+jcn2o 5lJpsoObLI4G8cKMQ2ge5uYrgd1TtRdktr2BISxLsQRCGkHe+cXltbW5DvbZtd4GyZcxjprk+ GnAO7pN+Yd9ZusfXZV1BJTRyCD9yggY627JxSogW3Nhb5Y0rTGSDWbOvT44aegnJVvyCT7WUF GudVii2/dWTENHpU2nKJBqJDe+pP3fIBXSP0PuYD06kJBQ7WOh48+PwbYyemylRc4UsMUpQa 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-bounces+geb-bug-gnu-emacs=m.gmane-mx.org@gnu.org Xref: news.gmane.io gmane.emacs.bugs:268765 Archived-At: Alan Mackenzie writes: > Hello, Emacs. > (v) Set debug-on-error to t with M-: (setq debug-on-error t). > (vi) Repeat (iv). This throws the same error, without a backtrace. This > lack of a backtrace is a bug. I think you just need (setq eval-expression-debug-on-error t). Stumbled over the same issue ... yesterday?, or so. Also when debugging Edebug. Maybe people would like debug-on-error -> t taking precedence over eval-expression-debug-on-error -> nil? The danger is they turn both off by default and then forget about the second one. Michael.