From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.io!.POSTED.blaine.gmane.org!not-for-mail From: Eli Zaretskii Newsgroups: gmane.emacs.bugs Subject: bug#63988: 30.0.50; Recent header line format changes cause spin/seg fault with format-mode-line Date: Sat, 10 Jun 2023 09:47:29 +0300 Message-ID: <831qij24qm.fsf@gnu.org> References: Injection-Info: ciao.gmane.io; posting-host="blaine.gmane.org:116.202.254.214"; logging-data="15300"; mail-complaints-to="usenet@ciao.gmane.io" Cc: 63988@debbugs.gnu.org To: Aaron Jensen Original-X-From: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane-mx.org@gnu.org Sat Jun 10 08:48:19 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 1q7sOW-0003j0-BA for geb-bug-gnu-emacs@m.gmane-mx.org; Sat, 10 Jun 2023 08:48:16 +0200 Original-Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1q7sOK-0001TE-8Z; Sat, 10 Jun 2023 02:48:04 -0400 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 1q7sOI-0001Rt-8w for bug-gnu-emacs@gnu.org; Sat, 10 Jun 2023 02:48:02 -0400 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 1q7sOI-0004LE-0E for bug-gnu-emacs@gnu.org; Sat, 10 Jun 2023 02:48:02 -0400 Original-Received: from Debian-debbugs by debbugs.gnu.org with local (Exim 4.84_2) (envelope-from ) id 1q7sOH-0007Dv-Ri for bug-gnu-emacs@gnu.org; Sat, 10 Jun 2023 02:48:01 -0400 X-Loop: help-debbugs@gnu.org Resent-From: Eli Zaretskii Original-Sender: "Debbugs-submit" Resent-CC: bug-gnu-emacs@gnu.org Resent-Date: Sat, 10 Jun 2023 06:48:01 +0000 Resent-Message-ID: Resent-Sender: help-debbugs@gnu.org X-GNU-PR-Message: followup 63988 X-GNU-PR-Package: emacs Original-Received: via spool by 63988-submit@debbugs.gnu.org id=B63988.168637964727569 (code B ref 63988); Sat, 10 Jun 2023 06:48:01 +0000 Original-Received: (at 63988) by debbugs.gnu.org; 10 Jun 2023 06:47:27 +0000 Original-Received: from localhost ([127.0.0.1]:33126 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1q7sNi-0007Ab-VP for submit@debbugs.gnu.org; Sat, 10 Jun 2023 02:47:27 -0400 Original-Received: from eggs.gnu.org ([209.51.188.92]:58018) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1q7sNh-0007AO-Fi for 63988@debbugs.gnu.org; Sat, 10 Jun 2023 02:47:25 -0400 Original-Received: from fencepost.gnu.org ([2001:470:142:3::e]) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1q7sNb-0004IL-JK; Sat, 10 Jun 2023 02:47:19 -0400 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=gnu.org; s=fencepost-gnu-org; h=References:Subject:In-Reply-To:To:From:Date: mime-version; bh=MwRkevTW4fQDvKxE4D/mzGm/lD3980JulmpeExRb1Gc=; b=FMBSd3d0zW16 erWgFwR8Okd0rTpCoTE2rE06Ks/0kILXXqCAVrMWu5Pt/gcF2OE83d696VXq0/HgJqedKzQNfaPdR JEz4nnBCC7wB9xHKpk8+VQKhi+WNsCAQ/VyOD2Egxb4MhNo39FKD4IJTK9O77HGuW+MSeunzWmRLR VpWIewjYJGsDLqcau0QG8cJf9BJ6+zJAdUITqdKz9jksIx1Y7JnKucPA29xTx38q32de7T0bV9g1n Cd3eNO9TNDyhWAl1Xop65sr524vwZSjrTfJYunSPr5mBV7PPF9utmZixTppbnE7GXaCXCG2DZrd9L PI2DCdM/5/+afApwVAuYxA==; Original-Received: from [87.69.77.57] (helo=home-c4e4a596f7) by fencepost.gnu.org with esmtpsa (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1q7sNa-0004eR-KZ; Sat, 10 Jun 2023 02:47:19 -0400 In-Reply-To: (message from Aaron Jensen on Fri, 09 Jun 2023 21:09:45 -0400) 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:263196 Archived-At: > From: Aaron Jensen > Date: Fri, 09 Jun 2023 21:09:45 -0400 > > > (setq header-line-format '(:eval (format-mode-line ""))) > > This causes Emacs to spin as of commit: > 4f66cbbfe520ee31ef26676e09a926217d9736fe > > After some time, it will segfault. It causes infinite recursion, since format-mode-line also calls window_wants_header_line (indirectly). But what is the purpose of such a strange (to use a civilized word) setting of header-line-format? Why do you need :eval at all in this case? IOW, why not say "don't do that" and be done?