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#57207: 29.0.50; Fontification is slow after e7b5912b23 (Improvements to long lines handling) Date: Mon, 15 Aug 2022 15:06:52 +0300 Message-ID: <835yitiucj.fsf@gnu.org> References: <87bksmx1j1.fsf@localhost> <5900f208367791fbdfe2@heytings.org> <87tu6d4txk.fsf@localhost> Injection-Info: ciao.gmane.io; posting-host="blaine.gmane.org:116.202.254.214"; logging-data="27640"; mail-complaints-to="usenet@ciao.gmane.io" Cc: gregory@heytings.org, 57207@debbugs.gnu.org To: Ihor Radchenko Original-X-From: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane-mx.org@gnu.org Mon Aug 15 14:08:19 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 1oNYtG-00073c-Tz for geb-bug-gnu-emacs@m.gmane-mx.org; Mon, 15 Aug 2022 14:08:19 +0200 Original-Received: from localhost ([::1]:37762 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1oNYtF-0007su-V3 for geb-bug-gnu-emacs@m.gmane-mx.org; Mon, 15 Aug 2022 08:08:17 -0400 Original-Received: from eggs.gnu.org ([2001:470:142:3::10]:36702) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1oNYt1-0007qk-O1 for bug-gnu-emacs@gnu.org; Mon, 15 Aug 2022 08:08:05 -0400 Original-Received: from debbugs.gnu.org ([209.51.188.43]:51369) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_128_GCM_SHA256:128) (Exim 4.90_1) (envelope-from ) id 1oNYt0-0005dz-Ky for bug-gnu-emacs@gnu.org; Mon, 15 Aug 2022 08:08:03 -0400 Original-Received: from Debian-debbugs by debbugs.gnu.org with local (Exim 4.84_2) (envelope-from ) id 1oNYt0-0007UK-FI for bug-gnu-emacs@gnu.org; Mon, 15 Aug 2022 08:08:02 -0400 X-Loop: help-debbugs@gnu.org Resent-From: Eli Zaretskii Original-Sender: "Debbugs-submit" Resent-CC: bug-gnu-emacs@gnu.org Resent-Date: Mon, 15 Aug 2022 12:08:02 +0000 Resent-Message-ID: Resent-Sender: help-debbugs@gnu.org X-GNU-PR-Message: followup 57207 X-GNU-PR-Package: emacs Original-Received: via spool by 57207-submit@debbugs.gnu.org id=B57207.166056523528708 (code B ref 57207); Mon, 15 Aug 2022 12:08:02 +0000 Original-Received: (at 57207) by debbugs.gnu.org; 15 Aug 2022 12:07:15 +0000 Original-Received: from localhost ([127.0.0.1]:41114 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1oNYsF-0007Sy-1H for submit@debbugs.gnu.org; Mon, 15 Aug 2022 08:07:15 -0400 Original-Received: from eggs.gnu.org ([209.51.188.92]:51734) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1oNYsD-0007Si-Ef for 57207@debbugs.gnu.org; Mon, 15 Aug 2022 08:07:13 -0400 Original-Received: from fencepost.gnu.org ([2001:470:142:3::e]:37298) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1oNYs7-0005XC-5e; Mon, 15 Aug 2022 08:07:07 -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=VIMXmjjOi4BEAKjTbJn6lrlFvpZk8nObkJewczbvBcY=; b=Xi3MAM3m6LNL eozBkfIk6wQOP79dlSDndklKXgMOX4GBbSKY39kzHraWw71gMYaE30kKPjt7gaX9C8GUuoQ4VldKH 6CYmRDBJYbN8/tTM//TE0k2IXT2YEiwYhzpUW5MwI8Nm5bdhLXlIUhLvs8ap+TMtzpEQBMXMBGskO AsloZ97Np7yOPHSrnbDeD/wfW8ExbM5sG6reLxNMP6+FcFVX2XzVunUi316fD7Ct3c0OSZgymB4T1 Jd3xqTMiG4rsdtXqhtdLHGzPdCBcveXSFINZmqtj3cU8OguIwwE2taOM9dewYeTceI1cQh6B0HSnp RJPqJYaYSYV8oqCeWzkx6Q==; Original-Received: from [87.69.77.57] (port=1256 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 1oNYs6-0003Va-L3; Mon, 15 Aug 2022 08:07:06 -0400 In-Reply-To: <87tu6d4txk.fsf@localhost> (message from Ihor Radchenko on Mon, 15 Aug 2022 19:39:35 +0800) 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:239786 Archived-At: > Cc: 57207@debbugs.gnu.org > From: Ihor Radchenko > Date: Mon, 15 Aug 2022 19:39:35 +0800 > > (b) Setting long-line-threshold to nil makes the slowdown disappear. > Increasing long-line-threshold to 100000 made Emacs hang. I had to kill > it using kill -9. When it hangs, can you attach a debugger to it and try to figure out where it loops? The instructions to do so are in etc/DEBUG, under "If the symptom of the bug is that Emacs fails to respond". If that procedure is more than you can afford, at least post the results of "thread apply all bt" after attaching the debugger to a "hung" Emacs. Thanks.