From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.io!.POSTED.blaine.gmane.org!not-for-mail From: Lars Ingebrigtsen Newsgroups: gmane.emacs.bugs Subject: bug#56201: Backtrace fails to appear in an error situation. Date: Fri, 24 Jun 2022 20:23:23 +0200 Message-ID: <87v8spnco4.fsf@gnus.org> 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="6055"; mail-complaints-to="usenet@ciao.gmane.io" User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/29.0.50 (gnu/linux) Cc: 56201@debbugs.gnu.org To: Alan Mackenzie Original-X-From: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane-mx.org@gnu.org Fri Jun 24 20:24:52 2022 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 1o4nzA-0001N1-0Y for geb-bug-gnu-emacs@m.gmane-mx.org; Fri, 24 Jun 2022 20:24:52 +0200 Original-Received: from localhost ([::1]:43964 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1o4nz7-00018b-6A for geb-bug-gnu-emacs@m.gmane-mx.org; Fri, 24 Jun 2022 14:24:49 -0400 Original-Received: from eggs.gnu.org ([2001:470:142:3::10]:48862) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1o4nyT-00010T-7l for bug-gnu-emacs@gnu.org; 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Fri, 24 Jun 2022 20:23:27 +0200 Face: iVBORw0KGgoAAAANSUhEUgAAADAAAAAwBAMAAAClLOS0AAAABGdBTUEAALGPC/xhBQAAACBj SFJNAAB6JgAAgIQAAPoAAACA6AAAdTAAAOpgAAA6mAAAF3CculE8AAAAIVBMVEUxLCgiHRlhXFdD Pjr19PDEwbuGgnumo53W1M6AfHb///9QeSwYAAAAAWJLR0QKaND0VgAAAAd0SU1FB+YGGBIUCsf9 kboAAAGoSURBVDjLjZO9b9swEMVPUlJ5lB0IWkWLjNVNdm1UY6BQpUZ/yBCyuV2ySi0Fc3Qlu1TG Fh3y5zZLhpAskBvvh3ePdw8EeK0xmMuKPDOaULQwAnu5KdemSd9IPWOGYTe0gHFFkAaCnoeW4Jmn gWZUW5UnNeAjcj/pvUgf9dstxBo0AfhNm8pe78OoOo1v8pdnq+CKItHhtWfPlf0I/S676xpdKQDc B2YFxeUuDlXzwzlvT885blQFXMRs02KuAoDM8vv2mmrXcvLH0V25yPU8KFudyvlB29GZgrv7ZUtt w5f6QDK/cCNVkyLM8zRfUnUTHOIhJyzCGwX8PZDzQKpOfH3bT3iYDlxyShNFwUMSiww3WPNAf+JZ N2o+K69ylrKeRlgUvbL4eTt8Sh7Jdq8cyz0ev/iodRtLmbSw7BLX+9UPxdniefgssjJVHADkfpBb MSxPSn/y06/YE85WawUELJ4fWdC4WuRUJAsW7xwti/AWjtNLZkgpQJVtSg/wbh/L0AAkG0R50PvO PR8600e3GWbsNtHBhAVbykyKJw8+mrwhgf+W8z7wD1jTW5FlsOchAAAAJXRFWHRkYXRlOmNyZWF0 ZQAyMDIyLTA2LTI0VDE4OjIwOjA5KzAwOjAwteW2KAAAACV0RVh0ZGF0ZTptb2RpZnkAMjAyMi0w Ni0yNFQxODoyMDowOSswMDowMMS4DpQAAAAASUVORK5CYII= X-Now-Playing: Rocketnumbernine's _Meyouweyou_: "Black And Blue" In-Reply-To: (Alan Mackenzie's message of "Fri, 24 Jun 2022 17:42:37 +0000") 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:235216 Archived-At: Alan Mackenzie writes: > This ought to produce a backtrace, but doesn't. It merely repeats the > error message "Text is read-only". This is a major bug; how can one > solve minor bugs if attempts to get diagnostic information are blocked? There's a lot of error conditions that are "normal" and handled by the code, and `debug-on-error' doesn't help you with that. You have to set `debug-on-signal' to get a backtrace from those. -- (domestic pets only, the antidote for overdose, milk.) bloggy blog: http://lars.ingebrigtsen.no