From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.io!.POSTED.blaine.gmane.org!not-for-mail From: Stefan Monnier via Users list for the GNU Emacs text editor Newsgroups: gmane.emacs.help Subject: Re: Debugging a seldom seen bug (C-g with Ido) Date: Tue, 18 Jan 2022 14:59:55 -0500 Message-ID: References: <87o84a642h.fsf@orangeshoelaces.net> Reply-To: Stefan Monnier Mime-Version: 1.0 Content-Type: text/plain Injection-Info: ciao.gmane.io; posting-host="blaine.gmane.org:116.202.254.214"; logging-data="23735"; mail-complaints-to="usenet@ciao.gmane.io" User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/29.0.50 (gnu/linux) To: help-gnu-emacs@gnu.org Cancel-Lock: sha1:/ctDUrZ8wmSoqRncTc8F0OcYZO8= Original-X-From: help-gnu-emacs-bounces+geh-help-gnu-emacs=m.gmane-mx.org@gnu.org Tue Jan 18 21:02:10 2022 Return-path: Envelope-to: geh-help-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 1n9ugD-00063y-Oc for geh-help-gnu-emacs@m.gmane-mx.org; Tue, 18 Jan 2022 21:02:09 +0100 Original-Received: from localhost ([::1]:44526 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1n9ugC-0003Z5-9x for geh-help-gnu-emacs@m.gmane-mx.org; Tue, 18 Jan 2022 15:02:08 -0500 Original-Received: from eggs.gnu.org ([209.51.188.92]:37332) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1n9ueL-0003Y4-6O for help-gnu-emacs@gnu.org; Tue, 18 Jan 2022 15:00:13 -0500 Original-Received: from ciao.gmane.io ([116.202.254.214]:52114) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1n9ueE-0005YN-Hs for help-gnu-emacs@gnu.org; Tue, 18 Jan 2022 15:00:09 -0500 Original-Received: from list by ciao.gmane.io with local (Exim 4.92) (envelope-from ) id 1n9ue7-0003Ch-J9 for help-gnu-emacs@gnu.org; Tue, 18 Jan 2022 20:59:59 +0100 X-Injected-Via-Gmane: http://gmane.org/ Received-SPF: pass client-ip=116.202.254.214; envelope-from=geh-help-gnu-emacs@m.gmane-mx.org; helo=ciao.gmane.io X-Spam_score_int: -16 X-Spam_score: -1.7 X-Spam_bar: - X-Spam_report: (-1.7 / 5.0 requ) BAYES_00=-1.9, HEADER_FROM_DIFFERENT_DOMAINS=0.248, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=no autolearn_force=no X-Spam_action: no action X-BeenThere: help-gnu-emacs@gnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Users list for the GNU Emacs text editor List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: help-gnu-emacs-bounces+geh-help-gnu-emacs=m.gmane-mx.org@gnu.org Original-Sender: "help-gnu-emacs" Xref: news.gmane.io gmane.emacs.help:135433 Archived-At: > I'm using Ido for all my completion needs, and occasionally when i'm > trying to abort an active ido-find-file command with C-g, i'm getting > "[Quit]" appended to the minibuffer, rather than the operation being > aborted. As if the keyboard-quit was processed while some buffer other > than minibuffer was current. > > It happens rather rarely and i failed to reliably reproduce it following > the script from view-lossage. It's probably timing-dependent. My guess is that it happens when you it `C-g` while Emacs is running some ELisp code and it processes the `C-g` as a (signal 'quit), like what happens when you hit `C-g` to interrupt execution of ELisp code, rather than by looking it up in the keymaps. You can try and debug this with (setq debug-on-error t debug-on-quit t) This setting can be rather annoying, tho (it will bring up a debugger buffer every time you interrupt ELisp execution with `C-g`), but if you hit the problem often enough it might be sufficient to catch the bugger red-handed. Feel free to send the resulting backtrace here (along with a description of what you were doing and what you remember seeing on screen shortly before the problem). Stefan