From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.org!.POSTED.blaine.gmane.org!not-for-mail From: Eli Zaretskii Newsgroups: gmane.emacs.bugs Subject: bug#34910: 27.0.50; Too much matching reentrancy Date: Tue, 19 Mar 2019 14:31:39 +0200 Message-ID: <83va0ft590.fsf@gnu.org> References: <834l7zuw4x.fsf@gnu.org> <443195D9-DFEB-4E67-AEFE-556C3D900113@acm.org> <8336njuqrd.fsf@gnu.org> <67b98e6f3b032e7114568934c94d32127897f5d2.camel@acm.org> Mime-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 8bit Injection-Info: blaine.gmane.org; posting-host="blaine.gmane.org:195.159.176.226"; logging-data="171140"; mail-complaints-to="usenet@blaine.gmane.org" Cc: 34910@debbugs.gnu.org To: Mattias =?UTF-8?Q?Engdeg=C3=A5rd?= Original-X-From: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane.org@gnu.org Tue Mar 19 13:32:25 2019 Return-path: Envelope-to: geb-bug-gnu-emacs@m.gmane.org Original-Received: from lists.gnu.org ([209.51.188.17]) by blaine.gmane.org with esmtps (TLS1.0:RSA_AES_256_CBC_SHA1:256) (Exim 4.89) (envelope-from ) id 1h6Duq-000iQb-RZ for geb-bug-gnu-emacs@m.gmane.org; Tue, 19 Mar 2019 13:32:25 +0100 Original-Received: from localhost ([127.0.0.1]:56630 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1h6Dum-0003ws-FF for geb-bug-gnu-emacs@m.gmane.org; Tue, 19 Mar 2019 08:32:20 -0400 Original-Received: from eggs.gnu.org ([209.51.188.92]:39901) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1h6DuY-0003tu-2e for bug-gnu-emacs@gnu.org; Tue, 19 Mar 2019 08:32:11 -0400 Original-Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1h6DuV-0008Aq-F9 for bug-gnu-emacs@gnu.org; Tue, 19 Mar 2019 08:32:04 -0400 Original-Received: from debbugs.gnu.org ([209.51.188.43]:36137) by eggs.gnu.org with esmtps (TLS1.0:RSA_AES_128_CBC_SHA1:16) (Exim 4.71) (envelope-from ) id 1h6DuU-0008A6-Pe for bug-gnu-emacs@gnu.org; Tue, 19 Mar 2019 08:32:03 -0400 Original-Received: from Debian-debbugs by debbugs.gnu.org with local (Exim 4.84_2) (envelope-from ) id 1h6DuU-0001HH-IX for bug-gnu-emacs@gnu.org; Tue, 19 Mar 2019 08:32:02 -0400 X-Loop: help-debbugs@gnu.org Resent-From: Eli Zaretskii Original-Sender: "Debbugs-submit" Resent-CC: bug-gnu-emacs@gnu.org Resent-Date: Tue, 19 Mar 2019 12:32:02 +0000 Resent-Message-ID: Resent-Sender: help-debbugs@gnu.org X-GNU-PR-Message: followup 34910 X-GNU-PR-Package: emacs Original-Received: via spool by 34910-submit@debbugs.gnu.org id=B34910.15529987164898 (code B ref 34910); Tue, 19 Mar 2019 12:32:02 +0000 Original-Received: (at 34910) by debbugs.gnu.org; 19 Mar 2019 12:31:56 +0000 Original-Received: from localhost ([127.0.0.1]:49681 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1h6DuO-0001Gv-96 for submit@debbugs.gnu.org; Tue, 19 Mar 2019 08:31:56 -0400 Original-Received: from eggs.gnu.org ([209.51.188.92]:53680) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1h6DuM-0001Gi-Kl for 34910@debbugs.gnu.org; Tue, 19 Mar 2019 08:31:55 -0400 Original-Received: from fencepost.gnu.org ([2001:470:142:3::e]:50532) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1h6DuE-0007oM-PZ; Tue, 19 Mar 2019 08:31:47 -0400 Original-Received: from [176.228.60.248] (port=1368 helo=home-c4e4a596f7) by fencepost.gnu.org with esmtpsa (TLS1.2:RSA_AES_256_CBC_SHA1:256) (Exim 4.82) (envelope-from ) id 1h6DuD-0005sN-MQ; Tue, 19 Mar 2019 08:31:46 -0400 In-reply-to: <67b98e6f3b032e7114568934c94d32127897f5d2.camel@acm.org> (message from Mattias =?UTF-8?Q?Engdeg=C3=A5rd?= on Tue, 19 Mar 2019 13:25:13 +0100) X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.2.x-3.x [generic] X-BeenThere: debbugs-submit@debbugs.gnu.org X-Mailman-Version: 2.1.18 Precedence: list X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.2.x-3.x [generic] X-Received-From: 209.51.188.43 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.org@gnu.org Original-Sender: "bug-gnu-emacs" Xref: news.gmane.org gmane.emacs.bugs:156497 Archived-At: > From: Mattias Engdegård > Cc: dancol@dancol.org, 34910@debbugs.gnu.org > Date: Tue, 19 Mar 2019 13:25:13 +0100 > > What happened was that a regexp failed because of stack overflow, which > caused lots of code to run and many regexps to be compiled, but the > original (failing) regexp was still marked busy in the cache. > Eventually, it had been pushed down to the last position in the cache, > where it caused the next request for a free cache entry to fail with > the reentrancy error. > > This patch fixes it. Please review. Thanks, this looked reasonable. Let's wait for Daniel to comment.