From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.org!.POSTED.blaine.gmane.org!not-for-mail From: Stefan Monnier Newsgroups: gmane.emacs.bugs Subject: bug#36216: 27.0.50; Variable binding depth exceeds max-specpld-size during bootstrap Date: Sun, 16 Jun 2019 17:32:53 -0400 Message-ID: References: <83o92zwed9.fsf@gnu.org> <83blyzw3zs.fsf@gnu.org> <83k1dlvd6x.fsf@gnu.org> <83h88pvcgr.fsf@gnu.org> Mime-Version: 1.0 Content-Type: text/plain; charset=iso-8859-1 Content-Transfer-Encoding: quoted-printable Injection-Info: blaine.gmane.org; posting-host="blaine.gmane.org:195.159.176.226"; logging-data="185124"; mail-complaints-to="usenet@blaine.gmane.org" User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/27.0.50 (gnu/linux) Cc: John Wiegley , 36216@debbugs.gnu.org To: Juanma Barranquero Original-X-From: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane.org@gnu.org Sun Jun 16 23:34:13 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 (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.89) (envelope-from ) id 1hccmy-000m05-CV for geb-bug-gnu-emacs@m.gmane.org; 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Sun, 16 Jun 2019 17:34:02 -0400 X-Loop: help-debbugs@gnu.org Resent-From: Stefan Monnier Original-Sender: "Debbugs-submit" Resent-CC: bug-gnu-emacs@gnu.org Resent-Date: Sun, 16 Jun 2019 21:34:02 +0000 Resent-Message-ID: Resent-Sender: help-debbugs@gnu.org X-GNU-PR-Message: followup 36216 X-GNU-PR-Package: emacs Original-Received: via spool by 36216-submit@debbugs.gnu.org id=B36216.156072078322647 (code B ref 36216); Sun, 16 Jun 2019 21:34:02 +0000 Original-Received: (at 36216) by debbugs.gnu.org; 16 Jun 2019 21:33:03 +0000 Original-Received: from localhost ([127.0.0.1]:41596 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1hcclr-0005tC-Hp for submit@debbugs.gnu.org; Sun, 16 Jun 2019 17:33:03 -0400 Original-Received: from mailscanner.iro.umontreal.ca ([132.204.25.50]:35108) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1hcclp-0005se-2j for 36216@debbugs.gnu.org; Sun, 16 Jun 2019 17:33:02 -0400 Original-Received: from pmg1.iro.umontreal.ca (localhost.localdomain [127.0.0.1]) by pmg1.iro.umontreal.ca (Proxmox) with ESMTP id 9ADE1100C30; Sun, 16 Jun 2019 17:32:55 -0400 (EDT) Original-Received: from mail01.iro.umontreal.ca (unknown [172.31.2.1]) by pmg1.iro.umontreal.ca (Proxmox) with ESMTP id 7AB7D1009BB; Sun, 16 Jun 2019 17:32:54 -0400 (EDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=iro.umontreal.ca; s=mail; t=1560720774; bh=CHEK/BwJezkeuJIVudRyHpLdZ4PVG4ElN3xxGwKV0yo=; h=From:To:Cc:Subject:References:Date:In-Reply-To:From; b=KvYvqf0xE3vpkP6IqGx3k1ewgJgXQCftYniuRjDWPslPtZatXmmDMzynLGVz488Uh oUNDYVcR1xkneYLCVDXMZ12u4Ml8kCi+uPEC2WWSbgWnq7638HegMSmAIaikNUWVYy OPBITeL7oPnOviMXMekAGDl0k/0PdhYtH2eZrDfKjH4SD8ufdRzfzkqqdtd6X1Rvb4 /NMOHLY0kwb4pS8O+H+1bxuhPJnOwNrJufm6MV5Lq2ct3buHRkp9bhEtMjhZE02KFO 68zxbA1fcbZGXsP0YWw+b5UCYQcPgmycnkSi5QII2QGt4jfUZAloA4m7mG3afwumbZ ndR8ceudSczbg== Original-Received: from alfajor (unknown [157.52.10.58]) by mail01.iro.umontreal.ca (Postfix) with ESMTPSA id C1F3F120C60; Sun, 16 Jun 2019 17:32:53 -0400 (EDT) In-Reply-To: (Juanma Barranquero's message of "Sun, 16 Jun 2019 21:49:29 +0200") 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:160705 Archived-At: > In this case, with max-specpdl-size =3D 1300 it was working, now it > requires on the order of 1435 or so, which is at least a 10% increment > (likely a bit more, assuming it didn't need exactly 1300 before). > That's not very big, but certainly significant. Exactly, 10% is quite significant. It can easily happen for perfectly legitimate reasons, but there's a chance it's an undesirable side-effect of some change which has a more global impact. Stefan PS: When I tried it here, `git bisect` pointed the finger at: commit afdc20d73c8588e5a744ecf7bffaf4401a557d20 (HEAD, refs/bisect/bad) Author: Mattias Engdeg=E5rd Date: Wed May 15 22:44:00 2019 +0200 =20=20=20=20 Allow zero-argument rx `or' and `seq' forms =20=20=20=20=20=20=20=20 Make the rx `or' and `seq' forms accept zero arguments to produce a never-matching regexp and an empty string, respectively. =20=20=20=20=20=20=20=20 * lisp/emacs-lisp/rx.el: Require cl-extra. (rx-constituents, rx-or): Permit zero args. (rx): Amend doc string for `or' and `seq'. * test/lisp/emacs-lisp/rx-tests.el (rx-or, rx-seq): Test the change. * etc/NEWS (Changes in Specialized Modes and Packages): Mention the= change. which suggests the 10% increase is localized: I guess we "require cl-extra" right when we happen to be (near) the deepest recursion and since it's not yet byte-compiled it causes yet more recursive eager-macroexpansion.