From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.io!.POSTED.blaine.gmane.org!not-for-mail From: Juri Linkov Newsgroups: gmane.emacs.bugs Subject: bug#59208: 29.0.50; tab-bar-auto-width plus display space cpu spin Date: Sat, 12 Nov 2022 20:33:15 +0200 Organization: LINKOV.NET Message-ID: <86tu34ko8s.fsf@mail.linkov.net> 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="38907"; mail-complaints-to="usenet@ciao.gmane.io" User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/29.0.50 (x86_64-pc-linux-gnu) Cc: 59208@debbugs.gnu.org To: Aaron Jensen Original-X-From: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane-mx.org@gnu.org Sat Nov 12 19:45:27 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 1otvVO-0009xC-Tc for geb-bug-gnu-emacs@m.gmane-mx.org; Sat, 12 Nov 2022 19:45:26 +0100 Original-Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1otvV7-0006iR-IF; Sat, 12 Nov 2022 13:45:10 -0500 Original-Received: from eggs.gnu.org ([2001:470:142:3::10]) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1otvV1-0006hf-9I for bug-gnu-emacs@gnu.org; Sat, 12 Nov 2022 13:45:05 -0500 Original-Received: from debbugs.gnu.org ([209.51.188.43]) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_128_GCM_SHA256:128) (Exim 4.90_1) (envelope-from ) id 1otvV0-0006Jt-W2 for bug-gnu-emacs@gnu.org; Sat, 12 Nov 2022 13:45:03 -0500 Original-Received: from Debian-debbugs by debbugs.gnu.org with local (Exim 4.84_2) (envelope-from ) id 1otvV0-00064j-D3 for bug-gnu-emacs@gnu.org; Sat, 12 Nov 2022 13:45:02 -0500 X-Loop: help-debbugs@gnu.org Resent-From: Juri Linkov Original-Sender: "Debbugs-submit" Resent-CC: bug-gnu-emacs@gnu.org Resent-Date: Sat, 12 Nov 2022 18:45:02 +0000 Resent-Message-ID: Resent-Sender: help-debbugs@gnu.org X-GNU-PR-Message: followup 59208 X-GNU-PR-Package: emacs Original-Received: via spool by 59208-submit@debbugs.gnu.org id=B59208.166827866223294 (code B ref 59208); Sat, 12 Nov 2022 18:45:02 +0000 Original-Received: (at 59208) by debbugs.gnu.org; 12 Nov 2022 18:44:22 +0000 Original-Received: from localhost ([127.0.0.1]:49040 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1otvUM-00063d-6z for submit@debbugs.gnu.org; Sat, 12 Nov 2022 13:44:22 -0500 Original-Received: from relay8-d.mail.gandi.net ([217.70.183.201]:48437) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1otvUK-00063P-Ei for 59208@debbugs.gnu.org; Sat, 12 Nov 2022 13:44:21 -0500 Original-Received: (Authenticated sender: juri@linkov.net) by mail.gandi.net (Postfix) with ESMTPSA id 2993F1BF204; Sat, 12 Nov 2022 18:44:10 +0000 (UTC) In-Reply-To: (Aaron Jensen's message of "Sat, 12 Nov 2022 02:31:53 -0500") 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:247685 Archived-At: > My tab-bar-tab-name-format-function causes 100% cpu spin as of > ca3763af5c. Disabling tab-bar-auto-width fixes it. > > To repro: emacs -Q -l repro.el > > repro.el: > > (defun aj/tab-bar-tab-name-format (tab i) > (propertize > (propertize " " 'display '(space :width (8))) > 'face (funcall tab-bar-tab-face-function tab))) > > (setq tab-bar-tab-name-format-function #'aj/tab-bar-tab-name-format) > > (tab-bar-mode) Thanks for the bug report. Since with (propertize " " 'display '(space :width (8))) the tab width can't grow more than 8 pixels, a possible fix would be on every iteration that adds more spaces to the tab name to check if the tab width remains the same.