From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.io!.POSTED.ciao.gmane.io!not-for-mail From: Joost Kremers Newsgroups: gmane.emacs.bugs Subject: bug#40088: 27.0.90; =?UTF-8?Q?Symbol=E2=80=99s?= value as variable is void: debugger-outer-match-data Date: Mon, 23 Mar 2020 16:53:45 +0100 Message-ID: <87a747e1u1.fsf@fastmail.fm> References: <87lfo0eddw.fsf@fastmail.fm> <87y2rz94m5.fsf@web.de> <874kun6wam.fsf@gmail.com> <87sgi55hw7.fsf@gmail.com> <87d097l8v6.fsf@gmail.com> <83r1xne753.fsf@gnu.org> <874kuhl18k.fsf@gmail.com> <83mu88cvqq.fsf@gnu.org> Mime-Version: 1.0 Content-Type: text/plain; format=flowed Injection-Info: ciao.gmane.io; posting-host="ciao.gmane.io:159.69.161.202"; logging-data="104520"; mail-complaints-to="usenet@ciao.gmane.io" User-Agent: mu4e 1.3.10; emacs 26.3 Cc: michael_heerdegen@web.de, 40088@debbugs.gnu.org, Noam Postavsky , monnier@iro.umontreal.ca To: Eli Zaretskii Original-X-From: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane-mx.org@gnu.org Mon Mar 23 16:54:25 2020 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 1jGPPF-000R4d-3c for geb-bug-gnu-emacs@m.gmane-mx.org; 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Mon, 23 Mar 2020 11:53:48 -0400 (EDT) In-reply-to: <83mu88cvqq.fsf@gnu.org> X-BeenThere: debbugs-submit@debbugs.gnu.org X-Mailman-Version: 2.1.18 Precedence: list X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.2.x-3.x [generic] X-Received-From: 209.51.188.43 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:177654 Archived-At: On Sun, Mar 22 2020, Eli Zaretskii wrote: > It sounds like a very basic error. How come we never saw it > before? > Is it just luck? Well, as Noam mentioned, the recipe I provided doesn't produce an explicit error on Emacs 26, it just keeps the backtrace buffer from appearing. I've always found `toggle-debug-on-error` a bit of hit-and-miss, sometimes it would display a backtrace when an error occurs, sometimes not. That might have been this bug in action, I don't know. (I do use IELM a lot, so who knows.) I've never been able to come up with a reliable recipe to reproduce the issue, however, so I never reported it. -- Joost Kremers Life has its moments