From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.io!.POSTED.blaine.gmane.org!not-for-mail From: Gregory Heytings Newsgroups: gmane.emacs.bugs Subject: bug#61514: 30.0.50; sadistically long xml line hangs emacs Date: Sun, 19 Feb 2023 00:46:05 +0000 Message-ID: <886c06e50e9cfacb7954@heytings.org> References: <87lel0c65v.fsf@everybody.org> <838rgvymcd.fsf@gnu.org> Mime-Version: 1.0 Content-Type: text/plain; format=flowed; charset=us-ascii Injection-Info: ciao.gmane.io; posting-host="blaine.gmane.org:116.202.254.214"; logging-data="20065"; mail-complaints-to="usenet@ciao.gmane.io" Cc: "Mark A. Hershberger" , 61514@debbugs.gnu.org To: Eli Zaretskii Original-X-From: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane-mx.org@gnu.org Sun Feb 19 01:47:13 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 1pTXrE-0004xk-Vm for geb-bug-gnu-emacs@m.gmane-mx.org; Sun, 19 Feb 2023 01:47:13 +0100 Original-Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1pTXr7-0003zE-9U; Sat, 18 Feb 2023 19:47:05 -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 1pTXr5-0003z0-6c for bug-gnu-emacs@gnu.org; Sat, 18 Feb 2023 19:47:03 -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 1pTXr4-0003PY-Rk for bug-gnu-emacs@gnu.org; Sat, 18 Feb 2023 19:47:02 -0500 Original-Received: from Debian-debbugs by debbugs.gnu.org with local (Exim 4.84_2) (envelope-from ) id 1pTXr4-0008JZ-GC for bug-gnu-emacs@gnu.org; Sat, 18 Feb 2023 19:47:02 -0500 X-Loop: help-debbugs@gnu.org Resent-From: Gregory Heytings Original-Sender: "Debbugs-submit" Resent-CC: bug-gnu-emacs@gnu.org Resent-Date: Sun, 19 Feb 2023 00:47:02 +0000 Resent-Message-ID: Resent-Sender: help-debbugs@gnu.org X-GNU-PR-Message: followup 61514 X-GNU-PR-Package: emacs Original-Received: via spool by 61514-submit@debbugs.gnu.org id=B61514.167676757131899 (code B ref 61514); Sun, 19 Feb 2023 00:47:02 +0000 Original-Received: (at 61514) by debbugs.gnu.org; 19 Feb 2023 00:46:11 +0000 Original-Received: from localhost ([127.0.0.1]:45232 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1pTXqE-0008IR-U5 for submit@debbugs.gnu.org; Sat, 18 Feb 2023 19:46:11 -0500 Original-Received: from heytings.org ([95.142.160.155]:34780) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1pTXqB-0008IH-7y for 61514@debbugs.gnu.org; Sat, 18 Feb 2023 19:46:09 -0500 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=heytings.org; s=20220101; t=1676767565; bh=Qe7L+sJrESIHNJwp9+MYMy2R5yqcILEowSmTsa29o/4=; h=Date:From:To:cc:Subject:In-Reply-To:Message-ID:References:From; b=talObXeBy+yQWfUf1oKQme0KAPgLxzzx257XAdW52JFIygz5A3PTpqsj36FSfhUg2 j1XRakTlEEy3HD7UADk2jOoVgnREOMN/kYDEoIKqgjpO3SI8I8x1msOJqidDTWcYjN JxckU+QJMWpwP6P8uUGmu4fcCmQ2eklb1z8joYSJ1RVgv/gQj2lLazv+40Os/rqWKu Hy87bTS0nZR5qUUdWnj/9nnIW/dtGwyGos9EwihRJ0FbBon5hr2NaiyppV/0BVJKBz PPtwnNR5MThPA5pX9+l/3ociYjR6N6FaTtv+IvkR0mxh0yQ860AmKQJi6Ui7lwoNoD x6Rp1EwzFyrxQ== In-Reply-To: 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:256011 Archived-At: > > Interestingly, the following simple patch fixes both the original and > the truncated cases: > > diff --git a/src/regex-emacs.c b/src/regex-emacs.c > index 2dca0d16ad9..eb943df46f0 100644 > --- a/src/regex-emacs.c > +++ b/src/regex-emacs.c > @@ -877,7 +877,7 @@ #define INIT_FAILURE_ALLOC 20 > whose default stack limit is 2mb. In order for a larger > value to work reliably, you have to try to make it accord > with the process stack limit. */ > -ptrdiff_t emacs_re_max_failures = 40000; > +ptrdiff_t emacs_re_max_failures = 37499; > > union fail_stack_elt > { > After some further investigation, that's probably not TRT to do here. With a file truncated to 100000 characters, the same bug happens with emacs_re_max_failures >= 15000, and disappears with emacs_re_max_failures <= 14999. Hmmm...