From unknown Sun Jun 22 07:41:39 2025 Content-Disposition: inline Content-Transfer-Encoding: quoted-printable MIME-Version: 1.0 X-Mailer: MIME-tools 5.509 (Entity 5.509) Content-Type: text/plain; charset=utf-8 From: bug#15778 <15778@debbugs.gnu.org> To: bug#15778 <15778@debbugs.gnu.org> Subject: Status: 24.3; cperl-mode causes emacs to lock up Reply-To: bug#15778 <15778@debbugs.gnu.org> Date: Sun, 22 Jun 2025 14:41:39 +0000 retitle 15778 24.3; cperl-mode causes emacs to lock up reassign 15778 emacs submitter 15778 Nathan Trapuzzano severity 15778 normal thanks From debbugs-submit-bounces@debbugs.gnu.org Fri Nov 01 07:20:02 2013 Received: (at submit) by debbugs.gnu.org; 1 Nov 2013 11:20:02 +0000 Received: from localhost ([127.0.0.1]:56608 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.80) (envelope-from ) id 1VcClj-0001rj-0s for submit@debbugs.gnu.org; Fri, 01 Nov 2013 07:20:02 -0400 Received: from eggs.gnu.org ([208.118.235.92]:49421) by debbugs.gnu.org with esmtp (Exim 4.80) (envelope-from ) id 1VcClb-0001rR-LB for submit@debbugs.gnu.org; Fri, 01 Nov 2013 07:19:55 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1VcClO-0004uQ-Pn for submit@debbugs.gnu.org; Fri, 01 Nov 2013 07:19:46 -0400 X-Spam-Checker-Version: SpamAssassin 3.3.2 (2011-06-06) on eggs.gnu.org X-Spam-Level: X-Spam-Status: No, score=0.8 required=5.0 tests=BAYES_50,T_DKIM_INVALID autolearn=disabled version=3.3.2 Received: from lists.gnu.org ([2001:4830:134:3::11]:58723) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1VcClO-0004uG-L9 for submit@debbugs.gnu.org; Fri, 01 Nov 2013 07:19:38 -0400 Received: from eggs.gnu.org ([2001:4830:134:3::10]:51017) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1VcClG-0004mN-T3 for bug-gnu-emacs@gnu.org; Fri, 01 Nov 2013 07:19:38 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1VcCl8-0004qZ-Up for bug-gnu-emacs@gnu.org; Fri, 01 Nov 2013 07:19:30 -0400 Received: from outbound-ss-60.hostmonster.com ([66.147.255.13]:40943) by eggs.gnu.org with smtp (Exim 4.71) (envelope-from ) id 1VcCl8-0004qF-Hq for bug-gnu-emacs@gnu.org; Fri, 01 Nov 2013 07:19:22 -0400 Received: (qmail 10798 invoked by uid 0); 1 Nov 2013 11:19:20 -0000 Received: from unknown (HELO host393.hostmonster.com) (66.147.240.193) by oproxy17-pub.mail.unifiedlayer.com with SMTP; 1 Nov 2013 11:19:19 -0000 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=nbtrap.com; s=default; h=Content-Type:MIME-Version:Message-ID:Date:Subject:To:From; bh=yxSZNmJp6htQMK9L2zHPkv9+UytbyvJcmQMdOIFgeUE=; b=nQucJAh4Up3pd9V9YFQGADsa4hXf92wEUEBzVkdLU7jLMoZMfx40HBaRW926XFuQdib+w4m7SMHn2KtAGlJ1qwezJMCrhK2GzHv5rgcT+NeFfCLjirpU0/7pRbHI7WjQ; Received: from [50.90.253.209] (port=41896 helo=Nathan-GNU) by host393.hostmonster.com with esmtpsa (TLSv1:CAMELLIA128-SHA:128) (Exim 4.80) (envelope-from ) id 1VcCl4-0003gE-Eu for bug-gnu-emacs@gnu.org; Fri, 01 Nov 2013 05:19:19 -0600 From: Nathan Trapuzzano To: bug-gnu-emacs@gnu.org Subject: 24.3; cperl-mode causes emacs to lock up Date: Fri, 01 Nov 2013 07:19:13 -0400 Message-ID: <871u30cqtq.fsf@nbtrap.com> User-Agent: Gnus/5.130007 (Ma Gnus v0.7) Emacs/24.3 (gnu/linux) MIME-Version: 1.0 Content-Type: multipart/mixed; boundary="=-=-=" X-Identified-User: {1585:host393.hostmonster.com:nbtrapco:nbtrap.com} {sentby:smtp auth 50.90.253.209 authed with nbtrap@nbtrap.com} X-detected-operating-system: by eggs.gnu.org: GNU/Linux 3.x X-detected-operating-system: by eggs.gnu.org: Error: Malformed IPv6 address (bad octet value). X-Received-From: 2001:4830:134:3::11 X-Spam-Score: -4.3 (----) X-Debbugs-Envelope-To: submit X-BeenThere: debbugs-submit@debbugs.gnu.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: debbugs-submit-bounces@debbugs.gnu.org Sender: "Debbugs-submit" X-Spam-Score: -4.3 (----) --=-=-= Content-Type: text/plain cperl-mode causes emacs to lock up indefinitely. I can't break the lock except by killing the process. Steps to reproduce: 1. Visit the attached file with cperl-mode. 2. Put the cursor at the beginning of line 44 ($$str =~ ...) 3. Type C-k (kill-line). The line is not removed, and the cursor is stuck. C-g doesn't help. This is happening on 24.3 and on trunk. --=-=-= Content-Type: text/x-perl; charset=utf-8 Content-Disposition: inline; filename=Beta.pm Content-Transfer-Encoding: quoted-printable package Diogenes::Coding::Beta; use strict; use warnings; use parent qw(Exporter); our @EXPORT =3D qw(beta_to_unicode); our %unicode; use File::Spec::Functions; use File::Basename; { my ($name, $path, $suffix) =3D fileparse __FILE__, qr/\.[^.]*/; my $coding_file =3D catfile $path, $name, 'coding.pl'; do $coding_file; } my $rx; { my @tokens =3D sort { length($b) <=3D> length($a) } keys %unicode; @tokens =3D map { quotemeta $_ } @tokens; push @tokens, '.'; $rx =3D join '|', @tokens; $rx =3D qr/$rx/; } # beta_to_unicode($lang, $$beta_text, $strict, $convert_final_sigma) sub beta_to_unicode { my $lang =3D lc shift; if ($lang eq 'greek') { goto &greek_to_unicode; } else { die "beta->unicode conversion not supported for language '$lang'"; } } # greek_to_unicode($$beta_text, $strict, $convert_final_sigma) sub greek_to_unicode { my ($str, $strict, $sigma) =3D @_; $$str =3D~ s/$rx/ my $match =3D ${^MATCH}; if (exists $unicode{$match}) { if ($match eq 'S' && $sigma) { if ($$str =3D~ m<\GS(?=3D[[:space:]\.,:;'\-_]|$)>) { # Bare 'S' is followed by a space, punctuation mark, or= end # of string. $unicode{S2}; } else { $unicode{$match}; } } else { $unicode{$match}; } } elsif ($strict) { die "no beta->unicode conversion for '$match'"; } else { $match; } /gpex; } 1; __END__ =3Dencoding utf8 =3Dhead1 NAME Diogenes::Coding::Beta - Routines for converting to/from beta code. =3Dhead1 INTERFACE =3Dover =3Ditem beta_to_unicode( $lang, $$beta_code_string, $strict, $convert_final= _sigma ) Convert $$beta_code_string in place from beta code to unicode. $lang speci= fies the language; currently, only C is supported. $strict means throw an exception if a token is encountered that doesn't have a conversion; otherwi= se, such tokens convert to themselves. $convert_final_sigma means convert word= - and string-terminal C into C<=CF=82>. =3Dback =3Dcut --=-=-= Content-Type: text/plain In GNU Emacs 24.3.1 (x86_64-unknown-linux-gnu, GTK+ Version 2.24.22) of 2013-10-31 on Nathan-GNU Windowing system distributor `The X.Org Foundation', version 11.0.11403000 Configured using: `configure '--prefix=/opt/emacs-24' '--infodir=/usr/share/info' '--mandir=/usr/share/man' '--with-x-toolkit=gtk2' '--with-xft' '--with-gif=no'' Important settings: value of $LANG: en_US.UTF-8 locale-coding-system: utf-8-unix default enable-multibyte-characters: t Major mode: Group Minor modes in effect: diff-auto-refine-mode: t show-paren-mode: t gnus-undo-mode: t tooltip-mode: t mouse-wheel-mode: t file-name-shadow-mode: t global-font-lock-mode: t font-lock-mode: t blink-cursor-mode: t auto-composition-mode: t auto-encryption-mode: t auto-compression-mode: t buffer-read-only: t column-number-mode: t line-number-mode: t transient-mark-mode: t Recent input: k C-x r o C-p C-p C-p C-p C-x r o C-n C-f C-g C-g C-p C-p C-p C-p C-x C-g C-x b s c s d f SPC j o s i f j SPC e s w o i d f o s i j SPC s d o f j i s C-j o s i d f j s d f C-p C-p C-p C-a C-SPC C-n C-n C-f C-f C-f C-f C-x r o C-/ n n n n n n n n C-h f m c u a SPC m o d e n n n n n n n n n n C-g q p p n n n n n n n n n n n n n n n n n n n n n n C-h k M-q C-x o h h n h h n h C-c C-v h n C-x o C-h i C-x 1 ^ ^ ^ ^ ^ ^ m e m l i s p C-s t r a n s i e n t C-s C-s C-s n ! h C-v C-v C-v C-v C-v C-v C-v C-v C-v C-v h n n n P N n C-l q n n l g C-p d q p q q l p T T p N q q l g n q l C-x 5 0 M-x r e p o r t SPC e m a b u Recent messages: imap: Login successful... imap: Authenticating to `mail.nbtrap.com' using `login'...done Wrote /home/nathan/Mail/mail/emacs-devel/177 nnml: Reading incoming mail (1 new)...done Reading active file via nnml...done Checking new news...done Auto-saving... 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/home/nathan/opt/elisp/gnus/share/emacs/site-lisp/gnus/nnmail hides /opt/emacs-24/share/emacs/24.3/lisp/gnus/nnmail /home/nathan/opt/elisp/gnus/share/emacs/site-lisp/gnus/mml hides /opt/emacs-24/share/emacs/24.3/lisp/gnus/mml /home/nathan/opt/elisp/gnus/share/emacs/site-lisp/gnus/time-date hides /opt/emacs-24/share/emacs/24.3/lisp/calendar/time-date /home/nathan/opt/elisp/gnus/share/emacs/site-lisp/gnus/parse-time hides /opt/emacs-24/share/emacs/24.3/lisp/calendar/parse-time Features: (shadow emacsbug bbdb-gui ffap rect help-mode gnus-fun mailalias smtpmail sendmail nnir mule-util info diff-mode easy-mmode flow-fill misearch multi-isearch sort gnus-cite smiley ansi-color w3m-form qp w3m browse-url doc-view jka-compr dired-x dired image-mode w3m-hist w3m-fb bookmark-w3m w3m-ems w3m-ccl ccl w3m-favicon w3m-image w3m-proc w3m-util mm-archive gnus-async gnus-bcklg gnus-ml disp-table nndraft nnmh imap utf-7 gnutls network-stream starttls nnimap parse-time tls utf7 netrc nnml gnus-agent gnus-srvr gnus-score score-mode nnvirtual gnus-msg nntp gnus-cache gnus-load eldoc nlinum linum nlinum-autoloads slime-autoloads paren bbdb-gnus gnus-art mm-uu mml2015 epg-config mm-view mml-smime smime dig gnus-sum nnoo gnus-group gnus-undo nnmail mail-source gnus-start gnus-spec gnus-int gnus-range message cl-macs gv format-spec mml easymenu mml-sec mm-decode mm-bodies mm-encode mail-parse rfc2231 rfc2047 rfc2045 ietf-drums gmm-utils mailheader gnus-win gnus gnus-ems gnus-compat url url-proxy url-privacy url-expand url-methods url-history url-cookie url-domsuf url-util url-parse auth-source eieio byte-opt bytecomp byte-compile cconv password-cache url-vars mailcap nnheader gnus-util mail-utils mm-util mail-prsvr wid-edit bbdb-snarf mail-extr rfc822 bbdb-com advice help-fns advice-preload mailabbrev bbdb-autoloads bbdb timezone haskell-mode-autoloads edmacro kmacro imenu w3m-load cl cl-lib package windmove time-date tooltip ediff-hook vc-hooks lisp-float-type mwheel x-win x-dnd tool-bar dnd fontset image regexp-opt fringe tabulated-list newcomment lisp-mode register page menu-bar rfn-eshadow timer select scroll-bar mouse jit-lock font-lock syntax facemenu font-core frame cham georgian utf-8-lang misc-lang vietnamese tibetan thai tai-viet lao korean japanese hebrew greek romanian slovak czech european ethiopic indian cyrillic chinese case-table epa-hook jka-cmpr-hook help simple abbrev minibuffer loaddefs button faces cus-face macroexp files text-properties overlay sha1 md5 base64 format env code-pages mule custom widget hashtable-print-readable backquote make-network-process dbusbind dynamic-setting system-font-setting font-render-setting move-toolbar gtk x-toolkit x multi-tty emacs) --=-=-=-- From debbugs-submit-bounces@debbugs.gnu.org Fri Nov 01 07:46:32 2013 Received: (at 15778) by debbugs.gnu.org; 1 Nov 2013 11:46:32 +0000 Received: from localhost ([127.0.0.1]:56688 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.80) (envelope-from ) id 1VcDBP-0003eC-8J for submit@debbugs.gnu.org; Fri, 01 Nov 2013 07:46:31 -0400 Received: from mtaout21.012.net.il ([80.179.55.169]:33138) by debbugs.gnu.org with esmtp (Exim 4.80) (envelope-from ) id 1VcDBK-0003dp-Ha for 15778@debbugs.gnu.org; Fri, 01 Nov 2013 07:46:28 -0400 Received: from conversion-daemon.a-mtaout21.012.net.il by a-mtaout21.012.net.il (HyperSendmail v2007.08) id <0MVL00N002093Y00@a-mtaout21.012.net.il> for 15778@debbugs.gnu.org; Fri, 01 Nov 2013 13:46:20 +0200 (IST) Received: from HOME-C4E4A596F7 ([87.69.4.28]) by a-mtaout21.012.net.il (HyperSendmail v2007.08) with ESMTPA id <0MVL00MTQ216VG90@a-mtaout21.012.net.il>; Fri, 01 Nov 2013 13:46:20 +0200 (IST) Date: Fri, 01 Nov 2013 13:46:05 +0200 From: Eli Zaretskii Subject: Re: bug#15778: 24.3; cperl-mode causes emacs to lock up In-reply-to: <871u30cqtq.fsf@nbtrap.com> X-012-Sender: halo1@inter.net.il To: Nathan Trapuzzano Message-id: <83mwlobb0i.fsf@gnu.org> References: <871u30cqtq.fsf@nbtrap.com> X-Spam-Score: 1.0 (+) X-Debbugs-Envelope-To: 15778 Cc: 15778@debbugs.gnu.org X-BeenThere: debbugs-submit@debbugs.gnu.org X-Mailman-Version: 2.1.15 Precedence: list Reply-To: Eli Zaretskii List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: debbugs-submit-bounces@debbugs.gnu.org Sender: "Debbugs-submit" X-Spam-Score: 1.0 (+) > From: Nathan Trapuzzano > Date: Fri, 01 Nov 2013 07:19:13 -0400 > > cperl-mode causes emacs to lock up indefinitely. I can't break the lock > except by killing the process. > > Steps to reproduce: > > 1. Visit the attached file with cperl-mode. > 2. Put the cursor at the beginning of line 44 ($$str =~ ...) > 3. Type C-k (kill-line). The line is not removed, and the cursor is > stuck. C-g doesn't help. Please attach a debugger and show the backtrace. The file etc/DEBUG explains how to look for a place that infloops, perhaps you could follow that and provide a more detailed information. Thanks. From debbugs-submit-bounces@debbugs.gnu.org Fri Nov 01 08:16:34 2013 Received: (at 15778) by debbugs.gnu.org; 1 Nov 2013 12:16:34 +0000 Received: from localhost ([127.0.0.1]:56804 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.80) (envelope-from ) id 1VcDeT-0004SP-Di for submit@debbugs.gnu.org; Fri, 01 Nov 2013 08:16:34 -0400 Received: from oproxy4-pub.mail.unifiedlayer.com ([74.220.216.66]:46942) by debbugs.gnu.org with smtp (Exim 4.80) (envelope-from ) id 1VcDeR-0004SC-7I for 15778@debbugs.gnu.org; Fri, 01 Nov 2013 08:16:32 -0400 Received: (qmail 26252 invoked by uid 0); 1 Nov 2013 12:16:29 -0000 Received: from unknown (HELO host393.hostmonster.com) (66.147.240.193) by oproxy4.mail.unifiedlayer.com with SMTP; 1 Nov 2013 12:16:29 -0000 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=nbtrap.com; s=default; h=Content-Type:MIME-Version:Message-ID:In-Reply-To:Date:References:Subject:Cc:To:From; bh=Y9YvMGM/DA/WMAQ8i7lPrsFMFi1XeFqXcYZHmVMTwz4=; b=segdNScF/QLv+bMSqFHKmPIJBzFMBg8pb5szY1tzWR8D+Jcsjymdkywc+5Z4zYFQmn+Ta1SSJnrZWQQvcXDqZ364LMnA6zY7zy+OsQ5XPV0L3J0rY4CKorOh4wnKaMdf; Received: from [50.90.253.209] (port=42608 helo=Nathan-GNU) by host393.hostmonster.com with esmtpsa (TLSv1:CAMELLIA128-SHA:128) (Exim 4.80) (envelope-from ) id 1VcDeO-0004pd-LJ; Fri, 01 Nov 2013 06:16:29 -0600 From: Nathan Trapuzzano To: Eli Zaretskii Subject: Re: bug#15778: 24.3; cperl-mode causes emacs to lock up References: <871u30cqtq.fsf@nbtrap.com> <83mwlobb0i.fsf@gnu.org> Date: Fri, 01 Nov 2013 08:16:24 -0400 In-Reply-To: <83mwlobb0i.fsf@gnu.org> (Eli Zaretskii's message of "Fri, 01 Nov 2013 13:46:05 +0200") Message-ID: <87mwlob9lz.fsf@nbtrap.com> User-Agent: Gnus/5.130007 (Ma Gnus v0.7) Emacs/24.3 (gnu/linux) MIME-Version: 1.0 Content-Type: multipart/mixed; boundary="=-=-=" X-Identified-User: {1585:host393.hostmonster.com:nbtrapco:nbtrap.com} {sentby:smtp auth 50.90.253.209 authed with nbtrap@nbtrap.com} X-Spam-Score: 0.0 (/) X-Debbugs-Envelope-To: 15778 Cc: 15778@debbugs.gnu.org X-BeenThere: debbugs-submit@debbugs.gnu.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: debbugs-submit-bounces@debbugs.gnu.org Sender: "Debbugs-submit" X-Spam-Score: 0.0 (/) --=-=-= Content-Type: text/plain Eli Zaretskii writes: > Please attach a debugger and show the backtrace. The file etc/DEBUG > explains how to look for a place that infloops, perhaps you could > follow that and provide a more detailed information. There's an infinite loop somewhere in exec_byte_code. I've attached the backtrace at the point. Moreover, sending emacs a SIGUSR2 does invoke the lisp debugger with the following message: Debugger entered--entering a function: * #[0 "\301\300\302\"\207" [(0 1) set-match-data evaporate] 3 "\n\n(fn)"]() * funcall(#[0 "\301\300\302\"\207" [(0 1) set-match-data evaporate] 3 "\n\n(fn)"]) jit-lock-fontify-now(1111 1611) jit-lock-function(1111) redisplay_internal\ \(C\ function\)() If this is not enough, I can try to look into it more later. --=-=-= Content-Type: text/plain Content-Disposition: inline; filename=gdb.txt #0 0x00000000005555e1 in exec_byte_code (bytestr=, vector=, maxdepth=, args_template=11780242, nargs=nargs@entry=0, args=, args@entry=0x0) at bytecode.c:919 #1 0x0000000000526532 in funcall_lambda (fun=9582789, nargs=nargs@entry=2, arg_vector=arg_vector@entry=0x7fff22a126a8) at eval.c:3023 #2 0x00000000005268d9 in Ffuncall (nargs=, args=) at eval.c:2838 #3 0x00000000005269ce in funcall_nil (nargs=, args=) at eval.c:2340 #4 0x00000000005255a9 in run_hook_with_args (nargs=3, args=0x7fff22a126a0, funcall=funcall@entry=0x5269c5 ) at eval.c:2525 #5 0x000000000052563e in Frun_hook_with_args (nargs=, args=) at eval.c:2386 #6 0x000000000052670a in Ffuncall (nargs=nargs@entry=4, args=args@entry=0x7fff22a12698) at eval.c:2770 #7 0x00000000005555e1 in exec_byte_code (bytestr=, vector=, maxdepth=, args_template=args_template@entry=0, nargs=nargs@entry=0, args=, args@entry=0x7fff22a12878) at bytecode.c:919 #8 0x0000000000526328 in funcall_lambda (fun=52111949, nargs=nargs@entry=0, arg_vector=arg_vector@entry=0x7fff22a12878) at eval.c:2957 #9 0x00000000005268d9 in Ffuncall (nargs=, args=) at eval.c:2838 #10 0x0000000000525e43 in eval_sub (form=form@entry=51776198) at eval.c:2131 #11 0x0000000000528a29 in internal_lisp_condition_case (var=, bodyform=51776198, handlers=) at eval.c:1300 #12 0x000000000055626b in exec_byte_code (bytestr=, vector=, maxdepth=, args_template=args_template@entry=2048, nargs=nargs@entry=2, args=, args@entry=0x7fff22a12c28) at bytecode.c:1169 #13 0x0000000000526328 in funcall_lambda (fun=9604621, nargs=nargs@entry=2, arg_vector=arg_vector@entry=0x7fff22a12c28) at eval.c:2957 #14 0x00000000005268d9 in Ffuncall (nargs=nargs@entry=3, args=args@entry=0x7fff22a12c20) at eval.c:2838 #15 0x00000000005555e1 in exec_byte_code (bytestr=, vector=, maxdepth=, args_template=args_template@entry=1028, nargs=nargs@entry=1, args=, args@entry=0x7fff22a12e58) at bytecode.c:919 #16 0x0000000000526328 in funcall_lambda (fun=9604205, nargs=nargs@entry=1, arg_vector=arg_vector@entry=0x7fff22a12e58) at eval.c:2957 #17 0x00000000005268d9 in Ffuncall (nargs=nargs@entry=2, args=args@entry=0x7fff22a12e50) at eval.c:2838 #18 0x0000000000525367 in internal_condition_case_n (bfun=0x52654e , nargs=nargs@entry=2, args=args@entry=0x7fff22a12e50, handlers=11780290, hfun=hfun@entry=0x4302f0 ) at eval.c:1413 #19 0x000000000042db6a in safe_call (nargs=nargs@entry=2, func=) at xdisp.c:2498 #20 0x000000000042db99 in safe_call1 (fn=, arg=) at xdisp.c:2514 #21 0x000000000042dd26 in handle_fontified_prop (it=0x7fff22a13e90) at xdisp.c:3701 #22 0x00000000004319df in handle_stop (it=it@entry=0x7fff22a13e90) at xdisp.c:3265 #23 0x0000000000438b1a in next_element_from_buffer (it=0x7fff22a13e90) at xdisp.c:8021 #24 0x000000000043528a in get_next_display_element (it=it@entry=0x7fff22a13e90) at xdisp.c:6676 #25 0x00000000004395f4 in display_line (it=it@entry=0x7fff22a13e90) at xdisp.c:19296 #26 0x000000000043bb30 in try_window (window=window@entry=11869221, pos=..., flags=flags@entry=1) at xdisp.c:16208 #27 0x000000000044bc68 in redisplay_window (window=window@entry=11869221, just_this_one_p=just_this_one_p@entry=1) at xdisp.c:15734 #28 0x000000000044d024 in redisplay_window_1 (window=window@entry=11869221) at xdisp.c:13756 #29 0x0000000000525114 in internal_condition_case_1 (bfun=bfun@entry=0x44cffb , arg=11869221, handlers=11995558, hfun=hfun@entry=0x41f157 ) at eval.c:1355 #30 0x0000000000440bfb in redisplay_internal () at xdisp.c:13412 #31 0x00000000004418e3 in redisplay () at xdisp.c:12647 #32 0x00000000004ca1fa in read_char (commandflag=1, map=map@entry=53179974, prev_event=11780242, used_mouse_menu=used_mouse_menu@entry=0x7fff22a177fb, end_time=end_time@entry=0x0) at keyboard.c:2557 #33 0x00000000004cb810 in read_key_sequence (keybuf=keybuf@entry=0x7fff22a178c0, bufsize=bufsize@entry=30, prompt=, dont_downcase_last=dont_downcase_last@entry=false, can_return_switch_frame=can_return_switch_frame@entry=true, fix_current_buffer=fix_current_buffer@entry=true, prevent_redisplay=prevent_redisplay@entry=false) at keyboard.c:9057 #34 0x00000000004cce4b in command_loop_1 () at keyboard.c:1431 #35 0x0000000000524ff7 in internal_condition_case (bfun=bfun@entry=0x4ccb53 , handlers=11839970, hfun=hfun@entry=0x4c51b1 ) at eval.c:1331 #36 0x00000000004c0a1f in command_loop_2 (ignore=ignore@entry=11780242) at keyboard.c:1158 #37 0x0000000000524ece in internal_catch (tag=11835698, func=func@entry=0x4c0a05 , arg=11780242) at eval.c:1097 #38 0x00000000004c09b7 in command_loop () at keyboard.c:1137 #39 0x00000000004c4d3d in recursive_edit_1 () at keyboard.c:776 #40 0x00000000004c5017 in Frecursive_edit () at keyboard.c:840 #41 0x00000000004c0464 in main (argc=, argv=0x7fff22a17be8) at emacs.c:1590 Lisp Backtrace: "font-lock-fontify-region" (0x22a126a8) "run-hook-with-args" (0x22a126a0) 0x31b2a48 PVEC_COMPILED "funcall" (0x22a12870) "jit-lock-fontify-now" (0x22a12c28) "jit-lock-function" (0x22a12e58) "redisplay_internal (C function)" (0xb22638) A debugging session is active. Inferior 1 [process 9463] will be detached. Quit anyway? (y or n) Not confirmed. --=-=-=-- From debbugs-submit-bounces@debbugs.gnu.org Fri Nov 01 10:41:46 2013 Received: (at 15778) by debbugs.gnu.org; 1 Nov 2013 14:41:46 +0000 Received: from localhost ([127.0.0.1]:57564 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.80) (envelope-from ) id 1VcFv0-0000r7-7a for submit@debbugs.gnu.org; Fri, 01 Nov 2013 10:41:46 -0400 Received: from mtaout23.012.net.il ([80.179.55.175]:50229) by debbugs.gnu.org with esmtp (Exim 4.80) (envelope-from ) id 1VcFux-0000qs-AN for 15778@debbugs.gnu.org; Fri, 01 Nov 2013 10:41:44 -0400 Received: from conversion-daemon.a-mtaout23.012.net.il by a-mtaout23.012.net.il (HyperSendmail v2007.08) id <0MVL00500A2AQK00@a-mtaout23.012.net.il> for 15778@debbugs.gnu.org; Fri, 01 Nov 2013 16:41:36 +0200 (IST) Received: from HOME-C4E4A596F7 ([87.69.4.28]) by a-mtaout23.012.net.il (HyperSendmail v2007.08) with ESMTPA id <0MVL0053EA5ALJ80@a-mtaout23.012.net.il>; Fri, 01 Nov 2013 16:41:36 +0200 (IST) Date: Fri, 01 Nov 2013 16:41:20 +0200 From: Eli Zaretskii Subject: Re: bug#15778: 24.3; cperl-mode causes emacs to lock up In-reply-to: <87mwlob9lz.fsf@nbtrap.com> X-012-Sender: halo1@inter.net.il To: Nathan Trapuzzano Message-id: <83iowcb2wf.fsf@gnu.org> References: <871u30cqtq.fsf@nbtrap.com> <83mwlobb0i.fsf@gnu.org> <87mwlob9lz.fsf@nbtrap.com> X-Spam-Score: 1.0 (+) X-Debbugs-Envelope-To: 15778 Cc: 15778@debbugs.gnu.org X-BeenThere: debbugs-submit@debbugs.gnu.org X-Mailman-Version: 2.1.15 Precedence: list Reply-To: Eli Zaretskii List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: debbugs-submit-bounces@debbugs.gnu.org Sender: "Debbugs-submit" X-Spam-Score: 1.0 (+) > From: Nathan Trapuzzano > Cc: 15778@debbugs.gnu.org > Date: Fri, 01 Nov 2013 08:16:24 -0400 > > > Please attach a debugger and show the backtrace. The file etc/DEBUG > > explains how to look for a place that infloops, perhaps you could > > follow that and provide a more detailed information. > > There's an infinite loop somewhere in exec_byte_code. I've attached the > backtrace at the point. Moreover, sending emacs a SIGUSR2 does invoke > the lisp debugger with the following message: > > Debugger entered--entering a function: > * #[0 "\301\300\302\"\207" [(0 1) set-match-data evaporate] 3 "\n\n(fn)"]() > * funcall(#[0 "\301\300\302\"\207" [(0 1) set-match-data evaporate] 3 "\n\n(fn)"]) > jit-lock-fontify-now(1111 1611) > jit-lock-function(1111) > redisplay_internal\ \(C\ function\)() > > If this is not enough, I can try to look into it more later. I cannot reproduce this. Does it happen in "emacs -Q"? From debbugs-submit-bounces@debbugs.gnu.org Fri Nov 01 10:59:20 2013 Received: (at 15778) by debbugs.gnu.org; 1 Nov 2013 14:59:20 +0000 Received: from localhost ([127.0.0.1]:57605 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.80) (envelope-from ) id 1VcGC0-0001Hh-EU for submit@debbugs.gnu.org; Fri, 01 Nov 2013 10:59:20 -0400 Received: from outbound-ss-1429.hostmonster.com ([74.220.221.129]:55128) by debbugs.gnu.org with smtp (Exim 4.80) (envelope-from ) id 1VcGBx-0001HY-RJ for 15778@debbugs.gnu.org; Fri, 01 Nov 2013 10:59:18 -0400 Received: (qmail 779 invoked by uid 0); 1 Nov 2013 14:59:13 -0000 Received: from unknown (HELO host393.hostmonster.com) (66.147.240.193) by oproxy19-pub.mail.unifiedlayer.com with SMTP; 1 Nov 2013 14:59:13 -0000 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=nbtrap.com; s=default; h=Content-Type:MIME-Version:Message-ID:In-Reply-To:Date:References:Subject:Cc:To:From; bh=J1c7d8adZs3V09wBykYiM5MsxS3JKcS2gGWNcwiGBg0=; b=WBDJA9UkUgs89tDxRK63l5zagGfUIZd6vdCf3AmB/UmBILvtz4555IfPWM5p8EGkXTSJSxXzfGv5Xab+V9p8mEWjrDdJnEY4bSkC2wyNtqEpFRjQovzmpAzAcKN0gPov; Received: from [50.90.253.209] (port=43207 helo=Nathan-GNU) by host393.hostmonster.com with esmtpsa (TLSv1:CAMELLIA128-SHA:128) (Exim 4.80) (envelope-from ) id 1VcGBt-0003AT-Ij; Fri, 01 Nov 2013 08:59:13 -0600 From: Nathan Trapuzzano To: Eli Zaretskii Subject: Re: bug#15778: 24.3; cperl-mode causes emacs to lock up References: <871u30cqtq.fsf@nbtrap.com> <83mwlobb0i.fsf@gnu.org> <87mwlob9lz.fsf@nbtrap.com> <83iowcb2wf.fsf@gnu.org> Date: Fri, 01 Nov 2013 10:59:12 -0400 In-Reply-To: <83iowcb2wf.fsf@gnu.org> (Eli Zaretskii's message of "Fri, 01 Nov 2013 16:41:20 +0200") Message-ID: <87y5589ni7.fsf@nbtrap.com> User-Agent: Gnus/5.130007 (Ma Gnus v0.7) Emacs/24.3 (gnu/linux) MIME-Version: 1.0 Content-Type: text/plain X-Identified-User: {1585:host393.hostmonster.com:nbtrapco:nbtrap.com} {sentby:smtp auth 50.90.253.209 authed with nbtrap@nbtrap.com} X-Spam-Score: 0.0 (/) X-Debbugs-Envelope-To: 15778 Cc: 15778@debbugs.gnu.org X-BeenThere: debbugs-submit@debbugs.gnu.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: debbugs-submit-bounces@debbugs.gnu.org Sender: "Debbugs-submit" X-Spam-Score: 0.0 (/) Eli Zaretskii writes: > I cannot reproduce this. Does it happen in "emacs -Q"? No. Specifically, the offending line in my .emacs is, whaddya know, (defalias 'perl-mode 'cperl-mode). Try this: emacs -Q M-: (defalias 'perl-mode 'cperl-mode) C-x C-f Beta.pm M-x goto-line 44 C-k From debbugs-submit-bounces@debbugs.gnu.org Fri Nov 01 12:26:38 2013 Received: (at 15778) by debbugs.gnu.org; 1 Nov 2013 16:26:38 +0000 Received: from localhost ([127.0.0.1]:57766 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.80) (envelope-from ) id 1VcHYT-0004iY-DA for submit@debbugs.gnu.org; Fri, 01 Nov 2013 12:26:37 -0400 Received: from mtaout20.012.net.il ([80.179.55.166]:55348) by debbugs.gnu.org with esmtp (Exim 4.80) (envelope-from ) id 1VcHYP-0004iD-M5 for 15778@debbugs.gnu.org; Fri, 01 Nov 2013 12:26:35 -0400 Received: from conversion-daemon.a-mtaout20.012.net.il by a-mtaout20.012.net.il (HyperSendmail v2007.08) id <0MVL00900EZYQM00@a-mtaout20.012.net.il> for 15778@debbugs.gnu.org; Fri, 01 Nov 2013 18:26:26 +0200 (IST) Received: from HOME-C4E4A596F7 ([87.69.4.28]) by a-mtaout20.012.net.il (HyperSendmail v2007.08) with ESMTPA id <0MVL009QTF02M440@a-mtaout20.012.net.il>; Fri, 01 Nov 2013 18:26:26 +0200 (IST) Date: Fri, 01 Nov 2013 18:26:14 +0200 From: Eli Zaretskii Subject: Re: bug#15778: 24.3; cperl-mode causes emacs to lock up In-reply-to: <87y5589ni7.fsf@nbtrap.com> X-012-Sender: halo1@inter.net.il To: Nathan Trapuzzano Message-id: <83habway1l.fsf@gnu.org> References: <871u30cqtq.fsf@nbtrap.com> <83mwlobb0i.fsf@gnu.org> <87mwlob9lz.fsf@nbtrap.com> <83iowcb2wf.fsf@gnu.org> <87y5589ni7.fsf@nbtrap.com> X-Spam-Score: 1.0 (+) X-Debbugs-Envelope-To: 15778 Cc: 15778@debbugs.gnu.org X-BeenThere: debbugs-submit@debbugs.gnu.org X-Mailman-Version: 2.1.15 Precedence: list Reply-To: Eli Zaretskii List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: debbugs-submit-bounces@debbugs.gnu.org Sender: "Debbugs-submit" X-Spam-Score: 1.0 (+) > From: Nathan Trapuzzano > Cc: 15778@debbugs.gnu.org > Date: Fri, 01 Nov 2013 10:59:12 -0400 > > emacs -Q > M-: (defalias 'perl-mode 'cperl-mode) > C-x C-f Beta.pm > M-x goto-line 44 > C-k It loops here: (while (and beg (progn (beginning-of-line) (eq (get-text-property (setq beg (point)) 'syntax-type) 'multiline))) (if (setq beg (cperl-beginning-of-property beg 'syntax-type)) (goto-char beg))) This happens because cperl-beginning-of-property does this: (or (previous-single-property-change (cperl-1+ p) prop lim) (point-min)) So it starts its search backwards for the beginning of the property from the position 1 _after_ BEG. In this case, previous-single-property-change returns BEG, so the code stays at BEG, and thus loops indefinitely. Looks like a bug in cperl-mode, as I don't see any protection in this loop against such a calamity. Is it safe to assume that a 'syntax-type' property will never cover exactly one buffer position? (I have no idea why the defalias is needed to trigger the bug.) From debbugs-submit-bounces@debbugs.gnu.org Fri Nov 01 13:35:23 2013 Received: (at 15778) by debbugs.gnu.org; 1 Nov 2013 17:35:23 +0000 Received: from localhost ([127.0.0.1]:57862 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.80) (envelope-from ) id 1VcId1-0006ZI-0V for submit@debbugs.gnu.org; Fri, 01 Nov 2013 13:35:23 -0400 Received: from oproxy4-pub.mail.unifiedlayer.com ([74.220.216.66]:49910) by debbugs.gnu.org with smtp (Exim 4.80) (envelope-from ) id 1VcIcv-0006Z5-TQ for 15778@debbugs.gnu.org; Fri, 01 Nov 2013 13:35:21 -0400 Received: (qmail 8064 invoked by uid 0); 1 Nov 2013 17:35:15 -0000 Received: from unknown (HELO host393.hostmonster.com) (66.147.240.193) by oproxy4.mail.unifiedlayer.com with SMTP; 1 Nov 2013 17:35:15 -0000 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=nbtrap.com; s=default; h=Content-Type:MIME-Version:Message-ID:References:Date:Subject:Cc:To:From; bh=jOEMgQNx2xBEAspID0LGLAEZ+QdjiOlWPRLWXs00TLQ=; b=COP695Xek41Z59b2r8CCjJBOACXx/d32iVUoSauC+kyXKmpd5UwvMtEQR01ZasU1qkrlr3TN0R7dpoGrnfSPInkUbBxXr0LNpJjIxaI5Hgxah3cXpmCJ+2Nt1eNIXvK/; Received: from [50.90.253.209] (port=44546 helo=Nathan-GNU) by host393.hostmonster.com with esmtpsa (TLSv1:CAMELLIA128-SHA:128) (Exim 4.80) (envelope-from ) id 1VcIct-0003fA-Fn; Fri, 01 Nov 2013 11:35:15 -0600 From: Nathan Trapuzzano To: Eli Zaretskii Subject: Re: bug#15778: 24.3; cperl-mode causes emacs to lock up Date: Fri, 01 Nov 2013 13:21:33 -0400 References: <871u30cqtq.fsf@nbtrap.com> <83mwlobb0i.fsf@gnu.org> <87mwlob9lz.fsf@nbtrap.com> <83iowcb2wf.fsf@gnu.org> <87y5589ni7.fsf@nbtrap.com> <83habway1l.fsf@gnu.org> Message-ID: <87sivg81pp.fsf@nbtrap.com> User-Agent: Gnus/5.130007 (Ma Gnus v0.7) Emacs/24.3 (gnu/linux) MIME-Version: 1.0 Content-Type: text/plain X-Identified-User: {1585:host393.hostmonster.com:nbtrapco:nbtrap.com} {sentby:smtp auth 50.90.253.209 authed with nbtrap@nbtrap.com} X-Spam-Score: 0.0 (/) X-Debbugs-Envelope-To: 15778 Cc: 15778@debbugs.gnu.org X-BeenThere: debbugs-submit@debbugs.gnu.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: debbugs-submit-bounces@debbugs.gnu.org Sender: "Debbugs-submit" X-Spam-Score: 0.0 (/) Eli Zaretskii writes: > Is it safe to assume that a 'syntax-type' property will never cover > exactly one buffer position? I think the question is actually whether it's safe to assume that font-lock-mode will never pass cperl's font-lock function a point (BEG) on a line whose first position is the beginning of a `multiline' `syntax-type' property. (That's a mouth full.) I can see why such an assumption might be made. So far as I can tell, the multiline property always begins at the position immediately following certain operators. Obviously, this can't ever be a position satisfying (bolp), since newline is no such operator. However, in this case, we're killing the line where the multiline property begins, and so as cperl goes about refontifying, it appears that the multiline property does in fact begin a line. So in the end, no, I don't think it's a safe assumption, at least not until _after_ fontification. > (I have no idea why the defalias is needed to trigger the bug.) Indeed. From debbugs-submit-bounces@debbugs.gnu.org Fri Nov 01 16:23:42 2013 Received: (at 15778) by debbugs.gnu.org; 1 Nov 2013 20:23:42 +0000 Received: from localhost ([127.0.0.1]:58102 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.80) (envelope-from ) id 1VcLFu-0002Py-3P for submit@debbugs.gnu.org; Fri, 01 Nov 2013 16:23:42 -0400 Received: from mout.gmx.net ([212.227.17.21]:53764) by debbugs.gnu.org with esmtp (Exim 4.80) (envelope-from ) id 1VcLFq-0002Pj-Ht for 15778@debbugs.gnu.org; Fri, 01 Nov 2013 16:23:39 -0400 Received: from rosalinde.fritz.box ([89.245.81.224]) by mail.gmx.com (mrgmx101) with ESMTPSA (Nemesis) id 0MgXCF-1VG9PI2OKl-00O3Cn for <15778@debbugs.gnu.org>; Fri, 01 Nov 2013 21:23:32 +0100 From: Stephen Berman To: Nathan Trapuzzano Subject: Re: bug#15778: 24.3; cperl-mode causes emacs to lock up References: <871u30cqtq.fsf@nbtrap.com> <83mwlobb0i.fsf@gnu.org> <87mwlob9lz.fsf@nbtrap.com> <83iowcb2wf.fsf@gnu.org> <87y5589ni7.fsf@nbtrap.com> <83habway1l.fsf@gnu.org> <87sivg81pp.fsf@nbtrap.com> Date: Fri, 01 Nov 2013 21:23:30 +0100 In-Reply-To: <87sivg81pp.fsf@nbtrap.com> (Nathan Trapuzzano's message of "Fri, 01 Nov 2013 13:21:33 -0400") Message-ID: <87y557dg71.fsf@rosalinde.fritz.box> User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/24.3.50 (gnu/linux) MIME-Version: 1.0 Content-Type: text/plain X-Provags-ID: V03:K0:TYeXa4np0Eg0/uC6BS/6xvJDMZRkxNF6dw/aC50VZwoD+fuePPm jxjW6xs8fqFqzoO6oU4jSn4yBgPKxdQ5VlftfN9ynIbBG3gKGurq8bZjp4YDDjkai9oVO4S pJhXfsArJ+p487IOnhBZAr8b+CVeZ1ufbh6b/DNZMRbC0WlJt3CDnreoEe49IZ2BFjZdomQ LfxbbhCYeGKvW2qUB9Byg== X-Spam-Score: -0.5 (/) X-Debbugs-Envelope-To: 15778 Cc: Eli Zaretskii , 15778@debbugs.gnu.org X-BeenThere: debbugs-submit@debbugs.gnu.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: debbugs-submit-bounces@debbugs.gnu.org Sender: "Debbugs-submit" X-Spam-Score: -0.5 (/) On Fri, 01 Nov 2013 13:21:33 -0400 Nathan Trapuzzano wrote: > Eli Zaretskii writes: > >> (I have no idea why the defalias is needed to trigger the bug.) > > Indeed. FWIW, I can reproduce the infloop and get the same backtrace starting Emacs with -Q in my most recent build, which is GNU Emacs 24.3.50.1 (x86_64-suse-linux-gnu, GTK+ Version 3.6.4) of 2013-09-29 on rosalinde.fritz.box (bzr 114480 jan.h.d@swipnet.se-20130929102158-3lobyyf4aobag57s), so if it doesn't happen with -Q in the current trunk, it must be due to some change in the last month. Steve Berman From debbugs-submit-bounces@debbugs.gnu.org Sat Nov 02 20:00:27 2013 Received: (at 15778) by debbugs.gnu.org; 3 Nov 2013 00:00:28 +0000 Received: from localhost ([127.0.0.1]:60183 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.80) (envelope-from ) id 1Vcl7D-0003F5-27 for submit@debbugs.gnu.org; Sat, 02 Nov 2013 20:00:27 -0400 Received: from mout.gmx.net ([212.227.17.22]:57946) by debbugs.gnu.org with esmtp (Exim 4.80) (envelope-from ) id 1Vcl7A-0003Ep-N8 for 15778@debbugs.gnu.org; Sat, 02 Nov 2013 20:00:25 -0400 Received: from rosalinde.fritz.box ([89.245.72.19]) by mail.gmx.com (mrgmx103) with ESMTPSA (Nemesis) id 0MRGvT-1VDqog2WOl-00UeQl for <15778@debbugs.gnu.org>; Sun, 03 Nov 2013 01:00:18 +0100 From: Stephen Berman To: Nathan Trapuzzano Subject: Re: bug#15778: 24.3; cperl-mode causes emacs to lock up References: <871u30cqtq.fsf@nbtrap.com> <83mwlobb0i.fsf@gnu.org> <87mwlob9lz.fsf@nbtrap.com> <83iowcb2wf.fsf@gnu.org> <87y5589ni7.fsf@nbtrap.com> <83habway1l.fsf@gnu.org> <87sivg81pp.fsf@nbtrap.com> <87y557dg71.fsf@rosalinde.fritz.box> Date: Sun, 03 Nov 2013 01:00:16 +0100 In-Reply-To: <87y557dg71.fsf@rosalinde.fritz.box> (Stephen Berman's message of "Fri, 01 Nov 2013 21:23:30 +0100") Message-ID: <87li165p7z.fsf@rosalinde.fritz.box> User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/24.3.50 (gnu/linux) MIME-Version: 1.0 Content-Type: text/plain X-Provags-ID: V03:K0:Dws/K7RqqW2TzcM5tYQ55q3y/f88IlduSQIwO+MWLRNeHq2bATd wnBQkPu36LQWinwzQS68t6XP+PTZZZEBRiu57Khha12HcXuVck+mWztBGaTh6qg4RlPyb32 V6TVNWDxvhGCiBQj0mWpN3ATFreIkOSZDSZFvVPgo4eA26JXyUmLnS+vRU0thRXi+3g2NtN VtQL21gVS8zIGJL8ZdbrQ== X-Spam-Score: -0.5 (/) X-Debbugs-Envelope-To: 15778 Cc: Eli Zaretskii , 15778@debbugs.gnu.org X-BeenThere: debbugs-submit@debbugs.gnu.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: debbugs-submit-bounces@debbugs.gnu.org Sender: "Debbugs-submit" X-Spam-Score: -0.5 (/) On Fri, 01 Nov 2013 21:23:30 +0100 Stephen Berman wrote: > On Fri, 01 Nov 2013 13:21:33 -0400 Nathan Trapuzzano wrote: > >> Eli Zaretskii writes: >> >>> (I have no idea why the defalias is needed to trigger the bug.) >> >> Indeed. > > FWIW, I can reproduce the infloop and get the same backtrace starting > Emacs with -Q in my most recent build, which is GNU Emacs 24.3.50.1 > (x86_64-suse-linux-gnu, GTK+ Version 3.6.4) of 2013-09-29 on > rosalinde.fritz.box (bzr 114480 > jan.h.d@swipnet.se-20130929102158-3lobyyf4aobag57s), so if it doesn't > happen with -Q in the current trunk, it must be due to some change in > the last month. Well, I rebuilt (with make bootstrap) from the current truck (bzr 114907), and still get the infloop from -Q with the OP's recipe minus the defalias. Steve Berman From debbugs-submit-bounces@debbugs.gnu.org Sun Nov 03 07:01:17 2013 Received: (at 15778) by debbugs.gnu.org; 3 Nov 2013 12:01:17 +0000 Received: from localhost ([127.0.0.1]:60572 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.80) (envelope-from ) id 1VcwMl-0003nh-Nj for submit@debbugs.gnu.org; Sun, 03 Nov 2013 07:01:16 -0500 Received: from oproxy6-pub.mail.unifiedlayer.com ([67.222.54.6]:58245) by debbugs.gnu.org with smtp (Exim 4.80) (envelope-from ) id 1VcwMb-0003nQ-Mn for 15778@debbugs.gnu.org; Sun, 03 Nov 2013 07:01:12 -0500 Received: (qmail 21185 invoked by uid 0); 3 Nov 2013 12:00:59 -0000 Received: from unknown (HELO host393.hostmonster.com) (66.147.240.193) by oproxy6.mail.unifiedlayer.com with SMTP; 3 Nov 2013 12:00:58 -0000 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=nbtrap.com; s=default; h=Content-Type:MIME-Version:Message-ID:In-Reply-To:Date:References:Subject:Cc:To:From; bh=QicoetRGt5ThsKyAHxlN2ILL7MPe5hAsyvWKYM34sbA=; b=AsfroVRnpTZ+ys84Y2WkKMY4SG0hRa8PE9FT9cr8Ux06AwFDT88B1I+mouUndxvz41omBWoL098yJ4xbUpg6vtTal6KpAIS2c956DfAqaBsR/ZSfjRiNbWfENWgCrp5g; Received: from [50.90.253.209] (port=60155 helo=Nathan-GNU) by host393.hostmonster.com with esmtpsa (TLSv1:CAMELLIA128-SHA:128) (Exim 4.80) (envelope-from ) id 1VcwMT-0000v8-TJ; Sun, 03 Nov 2013 05:00:58 -0700 From: Nathan Trapuzzano To: Stephen Berman Subject: Re: bug#15778: 24.3; cperl-mode causes emacs to lock up References: <871u30cqtq.fsf@nbtrap.com> <83mwlobb0i.fsf@gnu.org> <87mwlob9lz.fsf@nbtrap.com> <83iowcb2wf.fsf@gnu.org> <87y5589ni7.fsf@nbtrap.com> <83habway1l.fsf@gnu.org> <87sivg81pp.fsf@nbtrap.com> <87y557dg71.fsf@rosalinde.fritz.box> <87li165p7z.fsf@rosalinde.fritz.box> Date: Sun, 03 Nov 2013 07:00:51 -0500 In-Reply-To: <87li165p7z.fsf@rosalinde.fritz.box> (Stephen Berman's message of "Sun, 03 Nov 2013 01:00:16 +0100") Message-ID: <87habtvgng.fsf@nbtrap.com> User-Agent: Gnus/5.130007 (Ma Gnus v0.7) Emacs/24.3.50 (gnu/linux) MIME-Version: 1.0 Content-Type: text/plain X-Identified-User: {1585:host393.hostmonster.com:nbtrapco:nbtrap.com} {sentby:smtp auth 50.90.253.209 authed with nbtrap@nbtrap.com} X-Spam-Score: 0.0 (/) X-Debbugs-Envelope-To: 15778 Cc: Eli Zaretskii , 15778@debbugs.gnu.org X-BeenThere: debbugs-submit@debbugs.gnu.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: debbugs-submit-bounces@debbugs.gnu.org Sender: "Debbugs-submit" X-Spam-Score: 0.0 (/) Stephen Berman writes: > Well, I rebuilt (with make bootstrap) from the current truck (bzr > 114907), and still get the infloop from -Q with the OP's recipe minus > the defalias. Same here. The defalias should not be making a difference. I'm having a really hard time debugging this with Edebug. After I instrument the function (cperl-font-lock-fontify-region-function), the debugger is still not invoked when the function is entered. If I add an explicit call to (edebug), it breaks correctly, but when I try to step past it, the debugger just exits, and the function resumes. Anyone have a suggestion? From debbugs-submit-bounces@debbugs.gnu.org Sun Nov 03 08:41:22 2013 Received: (at 15778) by debbugs.gnu.org; 3 Nov 2013 13:41:22 +0000 Received: from localhost ([127.0.0.1]:60600 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.80) (envelope-from ) id 1Vcxve-0007D5-6l for submit@debbugs.gnu.org; Sun, 03 Nov 2013 08:41:22 -0500 Received: from mout.gmx.net ([212.227.17.22]:50863) by debbugs.gnu.org with esmtp (Exim 4.80) (envelope-from ) id 1VcxvZ-0007CZ-Tj for 15778@debbugs.gnu.org; Sun, 03 Nov 2013 08:41:19 -0500 Received: from rosalinde.fritz.box ([89.245.110.221]) by mail.gmx.com (mrgmx102) with ESMTPSA (Nemesis) id 0MS0c2-1VEBlk2iWA-00TGJr for <15778@debbugs.gnu.org>; Sun, 03 Nov 2013 14:41:11 +0100 From: Stephen Berman To: Nathan Trapuzzano Subject: Re: bug#15778: 24.3; cperl-mode causes emacs to lock up References: <871u30cqtq.fsf@nbtrap.com> <83mwlobb0i.fsf@gnu.org> <87mwlob9lz.fsf@nbtrap.com> <83iowcb2wf.fsf@gnu.org> <87y5589ni7.fsf@nbtrap.com> <83habway1l.fsf@gnu.org> <87sivg81pp.fsf@nbtrap.com> <87y557dg71.fsf@rosalinde.fritz.box> <87li165p7z.fsf@rosalinde.fritz.box> <87habtvgng.fsf@nbtrap.com> Date: Sun, 03 Nov 2013 14:41:09 +0100 In-Reply-To: <87habtvgng.fsf@nbtrap.com> (Nathan Trapuzzano's message of "Sun, 03 Nov 2013 07:00:51 -0500") Message-ID: <87a9hlwqkq.fsf@rosalinde.fritz.box> User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/24.3.50 (gnu/linux) MIME-Version: 1.0 Content-Type: text/plain X-Provags-ID: V03:K0:+wa5HNdKQXPuMoSqQaVyV/nNu/JG4txbDG6t4gNZ8peRpJdWzAP 2ULSk7cM4PHsgLLEfP0rxVXP1dlrIy1hz3oM+Q5AQHKIsnUZDCK3BwgmWkHOIGyd6t3ncIf Ri+bu0vbMwbKoN/q85Pglz8lTzyl1fHsCFKyFGbbG1QJsFCNCyXhgy+ngO2FrrTR6NlzlnX bkQQQ82k2IsJDcEDUSzLw== X-Spam-Score: -0.0 (/) X-Debbugs-Envelope-To: 15778 Cc: 15778@debbugs.gnu.org X-BeenThere: debbugs-submit@debbugs.gnu.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: debbugs-submit-bounces@debbugs.gnu.org Sender: "Debbugs-submit" X-Spam-Score: -0.0 (/) On Sun, 03 Nov 2013 07:00:51 -0500 Nathan Trapuzzano wrote: > Stephen Berman writes: > >> Well, I rebuilt (with make bootstrap) from the current truck (bzr >> 114907), and still get the infloop from -Q with the OP's recipe minus >> the defalias. > > Same here. The defalias should not be making a difference. > > I'm having a really hard time debugging this with Edebug. After I > instrument the function (cperl-font-lock-fontify-region-function), the > debugger is still not invoked when the function is entered. If I add an > explicit call to (edebug), it breaks correctly, but when I try to step > past it, the debugger just exits, and the function resumes. > > Anyone have a suggestion? I also tried and failed to get Edebug to kick in here, but I did make an observation that surprised me but I assume is somehow relevant: if I start Emacs with -Q, insert your sample perl code in a new buffer, invoke cperl-mode, go to line 44 and type C-k, Emacs hangs, as you discovered -- but if, after starting with -Q and inserting the sample code I first invoke perl-mode and after the buffer fontifies invoke cperl-mode, now when I go to line 44, C-k kills the line as it should and there is no other problem, even if I then change the buffer to some other mode and then back to cperl-mode again. Steve Berman From debbugs-submit-bounces@debbugs.gnu.org Sun Nov 03 08:59:24 2013 Received: (at 15778) by debbugs.gnu.org; 3 Nov 2013 13:59:24 +0000 Received: from localhost ([127.0.0.1]:60624 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.80) (envelope-from ) id 1VcyD3-0007cg-KE for submit@debbugs.gnu.org; Sun, 03 Nov 2013 08:59:23 -0500 Received: from oproxy4-pub.mail.unifiedlayer.com ([74.220.216.66]:42095) by debbugs.gnu.org with smtp (Exim 4.80) (envelope-from ) id 1VcyCy-0007cG-3p for 15778@debbugs.gnu.org; Sun, 03 Nov 2013 08:59:17 -0500 Received: (qmail 12177 invoked by uid 0); 3 Nov 2013 13:59:13 -0000 Received: from unknown (HELO host393.hostmonster.com) (66.147.240.193) by oproxy4.mail.unifiedlayer.com with SMTP; 3 Nov 2013 13:59:13 -0000 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=nbtrap.com; s=default; h=Content-Type:MIME-Version:Message-ID:In-Reply-To:Date:References:Subject:Cc:To:From; bh=0/oeg2vYV1HwwjXNg3kmKiTYp3grAnKFPQxVEhFF0cs=; b=YqggReEkg/VtuEz1+h+wZCuUHzF5cEueU0Z7v54kfUIRWXUvqy5lRXrM8PJyWiee1Q4neRftiwpuELkdegEIGOhVjXdA/FFJ6YxzkRx5eluIR+Xy+rw9DjtYbIRUYgL/; Received: from [50.90.253.209] (port=60319 helo=Nathan-GNU) by host393.hostmonster.com with esmtpsa (TLSv1:CAMELLIA128-SHA:128) (Exim 4.80) (envelope-from ) id 1VcyCu-0005VV-Dw; Sun, 03 Nov 2013 06:59:13 -0700 From: Nathan Trapuzzano To: Stephen Berman Subject: Re: bug#15778: 24.3; cperl-mode causes emacs to lock up References: <871u30cqtq.fsf@nbtrap.com> <83mwlobb0i.fsf@gnu.org> <87mwlob9lz.fsf@nbtrap.com> <83iowcb2wf.fsf@gnu.org> <87y5589ni7.fsf@nbtrap.com> <83habway1l.fsf@gnu.org> <87sivg81pp.fsf@nbtrap.com> <87y557dg71.fsf@rosalinde.fritz.box> <87li165p7z.fsf@rosalinde.fritz.box> <87habtvgng.fsf@nbtrap.com> <87a9hlwqkq.fsf@rosalinde.fritz.box> Date: Sun, 03 Nov 2013 08:59:02 -0500 In-Reply-To: <87a9hlwqkq.fsf@rosalinde.fritz.box> (Stephen Berman's message of "Sun, 03 Nov 2013 14:41:09 +0100") Message-ID: <87k3gpsi1l.fsf@nbtrap.com> User-Agent: Gnus/5.130007 (Ma Gnus v0.7) Emacs/24.3.50 (gnu/linux) MIME-Version: 1.0 Content-Type: multipart/mixed; boundary="=-=-=" X-Identified-User: {1585:host393.hostmonster.com:nbtrapco:nbtrap.com} {sentby:smtp auth 50.90.253.209 authed with nbtrap@nbtrap.com} X-Spam-Score: 1.3 (+) X-Spam-Report: Spam detection software, running on the system "debbugs.gnu.org", has identified this incoming email as possible spam. The original message has been attached to this so you can view it (if it isn't spam) or label similar future email. If you have any questions, see the administrator of that system for details. Content preview: Stephen Berman writes: > I also tried and failed to get Edebug to kick in here, but I did make an > observation that surprised me but I assume is somehow relevant: if I > start Emacs with -Q, insert your sample perl code in a new buffer, > invoke cperl-mode, go to line 44 and type C-k, Emacs hangs, as you > discovered -- but if, after starting with -Q and inserting the sample > code I first invoke perl-mode and after the buffer fontifies invoke > cperl-mode, now when I go to line 44, C-k kills the line as it should > and there is no other problem, even if I then change the buffer to some > other mode and then back to cperl-mode again. [...] Content analysis details: (1.3 points, 10.0 required) pts rule name description ---- ---------------------- -------------------------------------------------- 1.2 RCVD_IN_BL_SPAMCOP_NET RBL: Received via a relay in bl.spamcop.net [Blocked - see ] -0.0 SPF_PASS SPF: sender matches SPF record 0.0 T_DKIM_INVALID DKIM-Signature header exists but is not valid X-Debbugs-Envelope-To: 15778 Cc: 15778@debbugs.gnu.org X-BeenThere: debbugs-submit@debbugs.gnu.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: debbugs-submit-bounces@debbugs.gnu.org Sender: "Debbugs-submit" X-Spam-Score: 1.3 (+) X-Spam-Report: Spam detection software, running on the system "debbugs.gnu.org", has identified this incoming email as possible spam. The original message has been attached to this so you can view it (if it isn't spam) or label similar future email. If you have any questions, see the administrator of that system for details. Content preview: Stephen Berman writes: > I also tried and failed to get Edebug to kick in here, but I did make an > observation that surprised me but I assume is somehow relevant: if I > start Emacs with -Q, insert your sample perl code in a new buffer, > invoke cperl-mode, go to line 44 and type C-k, Emacs hangs, as you > discovered -- but if, after starting with -Q and inserting the sample > code I first invoke perl-mode and after the buffer fontifies invoke > cperl-mode, now when I go to line 44, C-k kills the line as it should > and there is no other problem, even if I then change the buffer to some > other mode and then back to cperl-mode again. [...] Content analysis details: (1.3 points, 10.0 required) pts rule name description ---- ---------------------- -------------------------------------------------- 1.2 RCVD_IN_BL_SPAMCOP_NET RBL: Received via a relay in bl.spamcop.net [Blocked - see ] -0.0 SPF_PASS SPF: sender matches SPF record 0.0 T_DKIM_INVALID DKIM-Signature header exists but is not valid --=-=-= Content-Type: text/plain Stephen Berman writes: > I also tried and failed to get Edebug to kick in here, but I did make an > observation that surprised me but I assume is somehow relevant: if I > start Emacs with -Q, insert your sample perl code in a new buffer, > invoke cperl-mode, go to line 44 and type C-k, Emacs hangs, as you > discovered -- but if, after starting with -Q and inserting the sample > code I first invoke perl-mode and after the buffer fontifies invoke > cperl-mode, now when I go to line 44, C-k kills the line as it should > and there is no other problem, even if I then change the buffer to some > other mode and then back to cperl-mode again. Since there seems to be inconsistend behavior, would you mind trying my patch and making sure none of the scenarios you've tried so far causes Emacs to hang? --=-=-= Content-Type: text/x-diff Content-Disposition: inline; filename=cperl-mode.patch >From 0b73932e90496e0477eddce6ba7e87d2137cb730 Mon Sep 17 00:00:00 2001 From: Nathan Trapuzzano Date: Sun, 3 Nov 2013 08:44:36 -0500 Subject: [PATCH] * progmodes/cperl-mode.el (cperl-font-lock-fontify-region-function): Don't infloop when expanding region over `multiline' syntax-type that begins a line. (Bug#15778) --- lisp/ChangeLog | 7 +++++++ lisp/progmodes/cperl-mode.el | 5 +++-- 2 files changed, 10 insertions(+), 2 deletions(-) diff --git a/lisp/ChangeLog b/lisp/ChangeLog index 6a91465..b047b57 100644 --- a/lisp/ChangeLog +++ b/lisp/ChangeLog @@ -1,3 +1,10 @@ +2013-11-03 Nathan Trapuzzano + + * progmodes/cperl-mode.el + (cperl-font-lock-fontify-region-function): Don't infloop when + expanding region over `multiline' syntax-type that begins a line. + (Bug#15778) + 2013-11-02 Glenn Morris * Makefile.in (EMACS): Use a relative filename. diff --git a/lisp/progmodes/cperl-mode.el b/lisp/progmodes/cperl-mode.el index 8a7d1e7..36b05c8 100644 --- a/lisp/progmodes/cperl-mode.el +++ b/lisp/progmodes/cperl-mode.el @@ -8900,8 +8900,9 @@ do extra unwind via `cperl-unwind-to-safe'." (beginning-of-line) (eq (get-text-property (setq beg (point)) 'syntax-type) 'multiline))) - (if (setq beg (cperl-beginning-of-property beg 'syntax-type)) - (goto-char beg))) + (let ((new-beg (cperl-beginning-of-property beg 'syntax-type))) + (setq beg (if (= new-beg beg) nil new-beg)) + (goto-char new-beg))) (setq beg (point)) (goto-char end) (while (and end -- 1.8.4.2 --=-=-=-- From debbugs-submit-bounces@debbugs.gnu.org Sun Nov 03 09:15:40 2013 Received: (at 15778) by debbugs.gnu.org; 3 Nov 2013 14:15:40 +0000 Received: from localhost ([127.0.0.1]:60659 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.80) (envelope-from ) id 1VcySp-00081V-KH for submit@debbugs.gnu.org; Sun, 03 Nov 2013 09:15:40 -0500 Received: from ironport2-out.teksavvy.com ([206.248.154.182]:6574) by debbugs.gnu.org with esmtp (Exim 4.80) (envelope-from ) id 1VcySn-00081I-UH for 15778@debbugs.gnu.org; Sun, 03 Nov 2013 09:15:38 -0500 X-IronPort-Anti-Spam-Filtered: true X-IronPort-Anti-Spam-Result: Av4EABK/CFFFxIRr/2dsb2JhbABEvw4Xc4IeAQEEAVYjBQsLDiYSFBgNJIgeBsEtkQoDiGGcGYFegxU X-IPAS-Result: Av4EABK/CFFFxIRr/2dsb2JhbABEvw4Xc4IeAQEEAVYjBQsLDiYSFBgNJIgeBsEtkQoDiGGcGYFegxU X-IronPort-AV: E=Sophos;i="4.84,565,1355115600"; d="scan'208";a="36980572" Received: from 69-196-132-107.dsl.teksavvy.com (HELO ceviche.home) ([69.196.132.107]) by ironport2-out.teksavvy.com with ESMTP/TLS/ADH-AES256-SHA; 03 Nov 2013 09:15:32 -0500 Received: by ceviche.home (Postfix, from userid 20848) id 0E187660A2; Sun, 3 Nov 2013 09:15:32 -0500 (EST) From: Stefan Monnier To: Nathan Trapuzzano Subject: Re: bug#15778: 24.3; cperl-mode causes emacs to lock up Message-ID: References: <871u30cqtq.fsf@nbtrap.com> <83mwlobb0i.fsf@gnu.org> <87mwlob9lz.fsf@nbtrap.com> <83iowcb2wf.fsf@gnu.org> <87y5589ni7.fsf@nbtrap.com> <83habway1l.fsf@gnu.org> <87sivg81pp.fsf@nbtrap.com> <87y557dg71.fsf@rosalinde.fritz.box> <87li165p7z.fsf@rosalinde.fritz.box> <87habtvgng.fsf@nbtrap.com> Date: Sun, 03 Nov 2013 09:15:32 -0500 In-Reply-To: <87habtvgng.fsf@nbtrap.com> (Nathan Trapuzzano's message of "Sun, 03 Nov 2013 07:00:51 -0500") User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/24.3.50 (gnu/linux) MIME-Version: 1.0 Content-Type: text/plain X-Spam-Score: 0.3 (/) X-Debbugs-Envelope-To: 15778 Cc: Stephen Berman , 15778@debbugs.gnu.org X-BeenThere: debbugs-submit@debbugs.gnu.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: debbugs-submit-bounces@debbugs.gnu.org Sender: "Debbugs-submit" X-Spam-Score: 0.3 (/) > I'm having a really hard time debugging this with Edebug. After I > instrument the function (cperl-font-lock-fontify-region-function), the > debugger is still not invoked when the function is entered. If I add an > explicit call to (edebug), it breaks correctly, but when I try to step > past it, the debugger just exits, and the function resumes. > Anyone have a suggestion? You'll want to (setq font-lock-support-mode nil) before visiting the buffer. If you can't reproduce the problem in that case, an alternative is to use M-x jit-lock-debug-mode, which should help as well. Stefan From debbugs-submit-bounces@debbugs.gnu.org Sun Nov 03 09:24:12 2013 Received: (at 15778) by debbugs.gnu.org; 3 Nov 2013 14:24:12 +0000 Received: from localhost ([127.0.0.1]:60663 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.80) (envelope-from ) id 1Vcyb5-0008E4-E2 for submit@debbugs.gnu.org; Sun, 03 Nov 2013 09:24:11 -0500 Received: from oproxy14-pub.mail.unifiedlayer.com ([67.222.51.224]:34903) by debbugs.gnu.org with smtp (Exim 4.80) (envelope-from ) id 1Vcyb2-0008Dt-Bs for 15778@debbugs.gnu.org; Sun, 03 Nov 2013 09:24:09 -0500 Received: (qmail 23357 invoked by uid 0); 3 Nov 2013 14:24:01 -0000 Received: from unknown (HELO host393.hostmonster.com) (66.147.240.193) by oproxy14.mail.unifiedlayer.com with SMTP; 3 Nov 2013 14:24:01 -0000 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=nbtrap.com; s=default; h=Content-Type:MIME-Version:Message-ID:In-Reply-To:Date:References:Subject:Cc:To:From; bh=4SJNC3vQQCbVMm1UNkiQ2RcIg0vmul0aUuqk+e8GjZ0=; b=e3VPm61N56XBM4d257XwKwkfkgbgKJ80kx222fIAqCPw1CpZy5E0jAaoYfN3mOL4pIgl2KEnr54KIi9PcA1pWaRTA2D133V7gI0N2zJAqTrCJ31aBYOxRkpezKJLsKvj; Received: from [50.90.253.209] (port=60499 helo=Nathan-GNU) by host393.hostmonster.com with esmtpsa (TLSv1:CAMELLIA128-SHA:128) (Exim 4.80) (envelope-from ) id 1Vcyav-0003FG-4D; Sun, 03 Nov 2013 07:24:01 -0700 From: Nathan Trapuzzano To: Stefan Monnier Subject: Re: bug#15778: 24.3; cperl-mode causes emacs to lock up References: <871u30cqtq.fsf@nbtrap.com> <83mwlobb0i.fsf@gnu.org> <87mwlob9lz.fsf@nbtrap.com> <83iowcb2wf.fsf@gnu.org> <87y5589ni7.fsf@nbtrap.com> <83habway1l.fsf@gnu.org> <87sivg81pp.fsf@nbtrap.com> <87y557dg71.fsf@rosalinde.fritz.box> <87li165p7z.fsf@rosalinde.fritz.box> <87habtvgng.fsf@nbtrap.com> Date: Sun, 03 Nov 2013 09:23:57 -0500 In-Reply-To: (Stefan Monnier's message of "Sun, 03 Nov 2013 09:15:32 -0500") Message-ID: <87d2mhsgw2.fsf@nbtrap.com> User-Agent: Gnus/5.130007 (Ma Gnus v0.7) Emacs/24.3.50 (gnu/linux) MIME-Version: 1.0 Content-Type: text/plain X-Identified-User: {1585:host393.hostmonster.com:nbtrapco:nbtrap.com} {sentby:smtp auth 50.90.253.209 authed with nbtrap@nbtrap.com} X-Spam-Score: 1.3 (+) X-Spam-Report: Spam detection software, running on the system "debbugs.gnu.org", has identified this incoming email as possible spam. The original message has been attached to this so you can view it (if it isn't spam) or label similar future email. If you have any questions, see the administrator of that system for details. Content preview: Stefan Monnier writes: > You'll want to (setq font-lock-support-mode nil) before visiting the buffer. > If you can't reproduce the problem in that case, an alternative is to > use M-x jit-lock-debug-mode, which should help as well. [...] Content analysis details: (1.3 points, 10.0 required) pts rule name description ---- ---------------------- -------------------------------------------------- 1.2 RCVD_IN_BL_SPAMCOP_NET RBL: Received via a relay in bl.spamcop.net [Blocked - see ] -0.0 SPF_PASS SPF: sender matches SPF record 0.0 T_DKIM_INVALID DKIM-Signature header exists but is not valid X-Debbugs-Envelope-To: 15778 Cc: Stephen Berman , 15778@debbugs.gnu.org X-BeenThere: debbugs-submit@debbugs.gnu.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: debbugs-submit-bounces@debbugs.gnu.org Sender: "Debbugs-submit" X-Spam-Score: 1.3 (+) X-Spam-Report: Spam detection software, running on the system "debbugs.gnu.org", has identified this incoming email as possible spam. The original message has been attached to this so you can view it (if it isn't spam) or label similar future email. If you have any questions, see the administrator of that system for details. Content preview: Stefan Monnier writes: > You'll want to (setq font-lock-support-mode nil) before visiting the buffer. > If you can't reproduce the problem in that case, an alternative is to > use M-x jit-lock-debug-mode, which should help as well. [...] Content analysis details: (1.3 points, 10.0 required) pts rule name description ---- ---------------------- -------------------------------------------------- 1.2 RCVD_IN_BL_SPAMCOP_NET RBL: Received via a relay in bl.spamcop.net [Blocked - see ] -0.0 SPF_PASS SPF: sender matches SPF record 0.0 T_DKIM_INVALID DKIM-Signature header exists but is not valid Stefan Monnier writes: > You'll want to (setq font-lock-support-mode nil) before visiting the buffer. > If you can't reproduce the problem in that case, an alternative is to > use M-x jit-lock-debug-mode, which should help as well. That worked, thanks. This doesn't seem to be documented anywhere. From debbugs-submit-bounces@debbugs.gnu.org Sun Nov 03 14:39:57 2013 Received: (at 15778) by debbugs.gnu.org; 3 Nov 2013 19:39:57 +0000 Received: from localhost ([127.0.0.1]:33062 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.80) (envelope-from ) id 1Vd3We-0007PG-Nu for submit@debbugs.gnu.org; Sun, 03 Nov 2013 14:39:57 -0500 Received: from mout.gmx.net ([212.227.15.15]:50106) by debbugs.gnu.org with esmtp (Exim 4.80) (envelope-from ) id 1Vd3Wa-0007P2-Sw for 15778@debbugs.gnu.org; Sun, 03 Nov 2013 14:39:54 -0500 Received: from rosalinde.fritz.box ([89.245.110.221]) by mail.gmx.com (mrgmx102) with ESMTPSA (Nemesis) id 0LinyL-1WDUo03bXJ-00d23d for <15778@debbugs.gnu.org>; Sun, 03 Nov 2013 20:39:46 +0100 From: Stephen Berman To: Nathan Trapuzzano Subject: Re: bug#15778: 24.3; cperl-mode causes emacs to lock up References: <871u30cqtq.fsf@nbtrap.com> <83mwlobb0i.fsf@gnu.org> <87mwlob9lz.fsf@nbtrap.com> <83iowcb2wf.fsf@gnu.org> <87y5589ni7.fsf@nbtrap.com> <83habway1l.fsf@gnu.org> <87sivg81pp.fsf@nbtrap.com> <87y557dg71.fsf@rosalinde.fritz.box> <87li165p7z.fsf@rosalinde.fritz.box> <87habtvgng.fsf@nbtrap.com> <87a9hlwqkq.fsf@rosalinde.fritz.box> <87k3gpsi1l.fsf@nbtrap.com> Date: Sun, 03 Nov 2013 20:39:45 +0100 In-Reply-To: <87k3gpsi1l.fsf@nbtrap.com> (Nathan Trapuzzano's message of "Sun, 03 Nov 2013 08:59:02 -0500") Message-ID: <8761s9w9z2.fsf@rosalinde.fritz.box> User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/24.3.50 (gnu/linux) MIME-Version: 1.0 Content-Type: text/plain X-Provags-ID: V03:K0:ZPQi7hwMfeaSPH8r8fs2rlCcVePm5Phdt1rJVZWhom6kWFh1sbZ jGi0+GOxKj7UJgZqkyW8KdgXsjaPRhaXTncROih5NXFxLhs7vHfEd2cyfgUdBhOppnQOj28 WjneB979OivrUJHy7uBc9dRzDVuTCOMoDKGUO7rCrxQwjpJc5c27+E1pvj8X+8VKen39reI 5WB61LPzFj2RGV0P0Xsxg== X-Spam-Score: -0.0 (/) X-Debbugs-Envelope-To: 15778 Cc: 15778@debbugs.gnu.org X-BeenThere: debbugs-submit@debbugs.gnu.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: debbugs-submit-bounces@debbugs.gnu.org Sender: "Debbugs-submit" X-Spam-Score: -0.0 (/) On Sun, 03 Nov 2013 08:59:02 -0500 Nathan Trapuzzano wrote: > Stephen Berman writes: > >> I also tried and failed to get Edebug to kick in here, but I did make an >> observation that surprised me but I assume is somehow relevant: if I >> start Emacs with -Q, insert your sample perl code in a new buffer, >> invoke cperl-mode, go to line 44 and type C-k, Emacs hangs, as you >> discovered -- but if, after starting with -Q and inserting the sample >> code I first invoke perl-mode and after the buffer fontifies invoke >> cperl-mode, now when I go to line 44, C-k kills the line as it should >> and there is no other problem, even if I then change the buffer to some >> other mode and then back to cperl-mode again. > > Since there seems to be inconsistend behavior, would you mind trying my > patch and making sure none of the scenarios you've tried so far causes > Emacs to hang? After applying your patch and byte-compiling the patched cperl-mode.el, the above recipe no longer makes Emacs infloop. (It still infloops when I just apply the patch and evaluate the patched cperl-font-lock-fontify-region-function without compiling the library). Steve Berman From debbugs-submit-bounces@debbugs.gnu.org Sun Nov 03 14:48:53 2013 Received: (at 15778) by debbugs.gnu.org; 3 Nov 2013 19:48:54 +0000 Received: from localhost ([127.0.0.1]:33067 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.80) (envelope-from ) id 1Vd3fJ-0007cP-3Q for submit@debbugs.gnu.org; Sun, 03 Nov 2013 14:48:53 -0500 Received: from oproxy18-pub.mail.unifiedlayer.com ([69.89.17.20]:34355) by debbugs.gnu.org with smtp (Exim 4.80) (envelope-from ) id 1Vd3fF-0007cE-Az for 15778@debbugs.gnu.org; Sun, 03 Nov 2013 14:48:50 -0500 Received: (qmail 18597 invoked by uid 0); 3 Nov 2013 19:48:45 -0000 Received: from unknown (HELO host393.hostmonster.com) (66.147.240.193) by oproxy18-pub.mail.unifiedlayer.com with SMTP; 3 Nov 2013 19:48:44 -0000 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=nbtrap.com; s=default; h=Content-Type:MIME-Version:Message-ID:In-Reply-To:Date:References:Subject:Cc:To:From; bh=WdV3Ho1WhRkq/Q5C0YdgM6haVf0OK0cb48kJnEqf+H0=; b=A2E7nDRx8b+Sq26XPd7N3vuob+K2IW5F1Kk0/J75/k3w5zm68GJ9L62QX6CAPnL+AvTxsFwNCRkPdqcYgSKY6CgxqxXSzUooelHP5O2Aho+kbRrBKGAefx3D+FP9dDvJ; Received: from [50.90.253.209] (port=32931 helo=Nathan-GNU) by host393.hostmonster.com with esmtpsa (TLSv1:CAMELLIA128-SHA:128) (Exim 4.80) (envelope-from ) id 1Vd3fA-0005qU-Jl; Sun, 03 Nov 2013 12:48:44 -0700 From: Nathan Trapuzzano To: Stephen Berman Subject: Re: bug#15778: 24.3; cperl-mode causes emacs to lock up References: <871u30cqtq.fsf@nbtrap.com> <83mwlobb0i.fsf@gnu.org> <87mwlob9lz.fsf@nbtrap.com> <83iowcb2wf.fsf@gnu.org> <87y5589ni7.fsf@nbtrap.com> <83habway1l.fsf@gnu.org> <87sivg81pp.fsf@nbtrap.com> <87y557dg71.fsf@rosalinde.fritz.box> <87li165p7z.fsf@rosalinde.fritz.box> <87habtvgng.fsf@nbtrap.com> <87a9hlwqkq.fsf@rosalinde.fritz.box> <87k3gpsi1l.fsf@nbtrap.com> <8761s9w9z2.fsf@rosalinde.fritz.box> Date: Sun, 03 Nov 2013 14:48:42 -0500 In-Reply-To: <8761s9w9z2.fsf@rosalinde.fritz.box> (Stephen Berman's message of "Sun, 03 Nov 2013 20:39:45 +0100") Message-ID: <87fvrdqnad.fsf@nbtrap.com> User-Agent: Gnus/5.130007 (Ma Gnus v0.7) Emacs/24.3.50 (gnu/linux) MIME-Version: 1.0 Content-Type: text/plain X-Identified-User: {1585:host393.hostmonster.com:nbtrapco:nbtrap.com} {sentby:smtp auth 50.90.253.209 authed with nbtrap@nbtrap.com} X-Spam-Score: 1.3 (+) X-Spam-Report: Spam detection software, running on the system "debbugs.gnu.org", has identified this incoming email as possible spam. The original message has been attached to this so you can view it (if it isn't spam) or label similar future email. If you have any questions, see the administrator of that system for details. Content preview: Stephen Berman writes: > (It still infloops when I just apply the patch and evaluate the > patched cperl-font-lock-fontify-region-function without compiling the > library) What if you eval the patched function _before_ visiting the file? [...] Content analysis details: (1.3 points, 10.0 required) pts rule name description ---- ---------------------- -------------------------------------------------- 1.2 RCVD_IN_BL_SPAMCOP_NET RBL: Received via a relay in bl.spamcop.net [Blocked - see ] -0.0 SPF_PASS SPF: sender matches SPF record 0.0 T_DKIM_INVALID DKIM-Signature header exists but is not valid X-Debbugs-Envelope-To: 15778 Cc: 15778@debbugs.gnu.org X-BeenThere: debbugs-submit@debbugs.gnu.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: debbugs-submit-bounces@debbugs.gnu.org Sender: "Debbugs-submit" X-Spam-Score: 1.3 (+) X-Spam-Report: Spam detection software, running on the system "debbugs.gnu.org", has identified this incoming email as possible spam. The original message has been attached to this so you can view it (if it isn't spam) or label similar future email. If you have any questions, see the administrator of that system for details. Content preview: Stephen Berman writes: > (It still infloops when I just apply the patch and evaluate the > patched cperl-font-lock-fontify-region-function without compiling the > library) What if you eval the patched function _before_ visiting the file? [...] Content analysis details: (1.3 points, 10.0 required) pts rule name description ---- ---------------------- -------------------------------------------------- 1.2 RCVD_IN_BL_SPAMCOP_NET RBL: Received via a relay in bl.spamcop.net [Blocked - see ] -0.0 SPF_PASS SPF: sender matches SPF record 0.0 T_DKIM_INVALID DKIM-Signature header exists but is not valid Stephen Berman writes: > (It still infloops when I just apply the patch and evaluate the > patched cperl-font-lock-fontify-region-function without compiling the > library) What if you eval the patched function _before_ visiting the file? From debbugs-submit-bounces@debbugs.gnu.org Sun Nov 03 17:22:58 2013 Received: (at 15778) by debbugs.gnu.org; 3 Nov 2013 22:22:59 +0000 Received: from localhost ([127.0.0.1]:33190 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.80) (envelope-from ) id 1Vd64P-0002uo-Tb for submit@debbugs.gnu.org; Sun, 03 Nov 2013 17:22:58 -0500 Received: from mout.gmx.net ([212.227.15.18]:52875) by debbugs.gnu.org with esmtp (Exim 4.80) (envelope-from ) id 1Vd64N-0002uY-J7 for 15778@debbugs.gnu.org; Sun, 03 Nov 2013 17:22:56 -0500 Received: from rosalinde.fritz.box ([89.245.110.221]) by mail.gmx.com (mrgmx103) with ESMTPSA (Nemesis) id 0LrNoG-1VmoLc1YYm-013ACF for <15778@debbugs.gnu.org>; Sun, 03 Nov 2013 23:22:49 +0100 From: Stephen Berman To: Nathan Trapuzzano Subject: Re: bug#15778: 24.3; cperl-mode causes emacs to lock up References: <871u30cqtq.fsf@nbtrap.com> <83mwlobb0i.fsf@gnu.org> <87mwlob9lz.fsf@nbtrap.com> <83iowcb2wf.fsf@gnu.org> <87y5589ni7.fsf@nbtrap.com> <83habway1l.fsf@gnu.org> <87sivg81pp.fsf@nbtrap.com> <87y557dg71.fsf@rosalinde.fritz.box> <87li165p7z.fsf@rosalinde.fritz.box> <87habtvgng.fsf@nbtrap.com> <87a9hlwqkq.fsf@rosalinde.fritz.box> <87k3gpsi1l.fsf@nbtrap.com> <8761s9w9z2.fsf@rosalinde.fritz.box> <87fvrdqnad.fsf@nbtrap.com> Date: Sun, 03 Nov 2013 23:22:47 +0100 In-Reply-To: <87fvrdqnad.fsf@nbtrap.com> (Nathan Trapuzzano's message of "Sun, 03 Nov 2013 14:48:42 -0500") Message-ID: <87y555unuw.fsf@rosalinde.fritz.box> User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/24.3.50 (gnu/linux) MIME-Version: 1.0 Content-Type: text/plain X-Provags-ID: V03:K0:vmweLkWXi2vQ7af7Gy3qrmSNriuoI7s/dTee144g7EmfLC2btBq H7RJ6mo81+eI41+HqT2uzr0tVLRbqjNedbXVh86+a/UWpa1HPSLTf4oQLnyx3vhEHrH5vgu MYBle9e+wrtaH4ccSipBbvKMpGiCbcEgF7piq6q3tnctJApVu1E5utWcnHdXfChy4dLsI7F hoFnLPr4slTK7ggnae9HA== X-Spam-Score: -0.0 (/) X-Debbugs-Envelope-To: 15778 Cc: 15778@debbugs.gnu.org X-BeenThere: debbugs-submit@debbugs.gnu.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: debbugs-submit-bounces@debbugs.gnu.org Sender: "Debbugs-submit" X-Spam-Score: -0.0 (/) On Sun, 03 Nov 2013 14:48:42 -0500 Nathan Trapuzzano wrote: > Stephen Berman writes: > >> (It still infloops when I just apply the patch and evaluate the >> patched cperl-font-lock-fontify-region-function without compiling the >> library) > > What if you eval the patched function _before_ visiting the file? Ah, then it works, i.e. C-k kills the line and Emacs doesn't infloop. Steve Berman From debbugs-submit-bounces@debbugs.gnu.org Sun Nov 03 17:50:54 2013 Received: (at 15778) by debbugs.gnu.org; 3 Nov 2013 22:50:55 +0000 Received: from localhost ([127.0.0.1]:33203 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.80) (envelope-from ) id 1Vd6VR-0003aO-Us for submit@debbugs.gnu.org; Sun, 03 Nov 2013 17:50:54 -0500 Received: from oproxy7-pub.mail.unifiedlayer.com ([67.222.55.9]:53943) by debbugs.gnu.org with smtp (Exim 4.80) (envelope-from ) id 1Vd6VL-0003a9-OG for 15778@debbugs.gnu.org; Sun, 03 Nov 2013 17:50:52 -0500 Received: (qmail 22130 invoked by uid 0); 3 Nov 2013 22:50:45 -0000 Received: from unknown (HELO host393.hostmonster.com) (66.147.240.193) by oproxy7.mail.unifiedlayer.com with SMTP; 3 Nov 2013 22:50:45 -0000 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=nbtrap.com; s=default; h=Content-Type:MIME-Version:Message-ID:In-Reply-To:Date:References:Subject:Cc:To:From; bh=DVQQU4L9vWeaT8QkFfvohFySqanYl6yrLXpNnVPQV7M=; b=MdrysMflTwcmUG+gLzOMzrn+qPO7lZvRYRrYNTbaSGtwNUjpTuknRuc4votFH9gROwrs4osQkRGwShqfpk19akiA0XOM3oKpKHsRCp6X+COWJ4l4+WCH6hp9+uBvwGzC; Received: from [50.90.253.209] (port=34509 helo=Nathan-GNU) by host393.hostmonster.com with esmtpsa (TLSv1:CAMELLIA128-SHA:128) (Exim 4.80) (envelope-from ) id 1Vd6VJ-0007lM-20; Sun, 03 Nov 2013 15:50:45 -0700 From: Nathan Trapuzzano To: Stephen Berman Subject: Re: bug#15778: 24.3; cperl-mode causes emacs to lock up References: <871u30cqtq.fsf@nbtrap.com> <83mwlobb0i.fsf@gnu.org> <87mwlob9lz.fsf@nbtrap.com> <83iowcb2wf.fsf@gnu.org> <87y5589ni7.fsf@nbtrap.com> <83habway1l.fsf@gnu.org> <87sivg81pp.fsf@nbtrap.com> <87y557dg71.fsf@rosalinde.fritz.box> <87li165p7z.fsf@rosalinde.fritz.box> <87habtvgng.fsf@nbtrap.com> <87a9hlwqkq.fsf@rosalinde.fritz.box> <87k3gpsi1l.fsf@nbtrap.com> <8761s9w9z2.fsf@rosalinde.fritz.box> <87fvrdqnad.fsf@nbtrap.com> <87y555unuw.fsf@rosalinde.fritz.box> Date: Sun, 03 Nov 2013 17:50:41 -0500 In-Reply-To: <87y555unuw.fsf@rosalinde.fritz.box> (Stephen Berman's message of "Sun, 03 Nov 2013 23:22:47 +0100") Message-ID: <87li15p0am.fsf@nbtrap.com> User-Agent: Gnus/5.130007 (Ma Gnus v0.7) Emacs/24.3.50 (gnu/linux) MIME-Version: 1.0 Content-Type: multipart/mixed; boundary="=-=-=" X-Identified-User: {1585:host393.hostmonster.com:nbtrapco:nbtrap.com} {sentby:smtp auth 50.90.253.209 authed with nbtrap@nbtrap.com} X-Spam-Score: 0.0 (/) X-Debbugs-Envelope-To: 15778 Cc: 15778@debbugs.gnu.org X-BeenThere: debbugs-submit@debbugs.gnu.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: debbugs-submit-bounces@debbugs.gnu.org Sender: "Debbugs-submit" X-Spam-Score: 0.0 (/) --=-=-= Content-Type: text/plain Stephen Berman writes: > Ah, then it works, i.e. C-k kills the line and Emacs doesn't infloop. I thought so. Can someone apply the patch to trunk? It's attached here again. --=-=-= Content-Type: text/x-diff Content-Disposition: inline; filename=cperl-mode.patch >From 0b73932e90496e0477eddce6ba7e87d2137cb730 Mon Sep 17 00:00:00 2001 From: Nathan Trapuzzano Date: Sun, 3 Nov 2013 08:44:36 -0500 Subject: [PATCH] * progmodes/cperl-mode.el (cperl-font-lock-fontify-region-function): Don't infloop when expanding region over `multiline' syntax-type that begins a line. (Bug#15778) --- lisp/ChangeLog | 7 +++++++ lisp/progmodes/cperl-mode.el | 5 +++-- 2 files changed, 10 insertions(+), 2 deletions(-) diff --git a/lisp/ChangeLog b/lisp/ChangeLog index 6a91465..b047b57 100644 --- a/lisp/ChangeLog +++ b/lisp/ChangeLog @@ -1,3 +1,10 @@ +2013-11-03 Nathan Trapuzzano + + * progmodes/cperl-mode.el + (cperl-font-lock-fontify-region-function): Don't infloop when + expanding region over `multiline' syntax-type that begins a line. + (Bug#15778) + 2013-11-02 Glenn Morris * Makefile.in (EMACS): Use a relative filename. diff --git a/lisp/progmodes/cperl-mode.el b/lisp/progmodes/cperl-mode.el index 8a7d1e7..36b05c8 100644 --- a/lisp/progmodes/cperl-mode.el +++ b/lisp/progmodes/cperl-mode.el @@ -8900,8 +8900,9 @@ do extra unwind via `cperl-unwind-to-safe'." (beginning-of-line) (eq (get-text-property (setq beg (point)) 'syntax-type) 'multiline))) - (if (setq beg (cperl-beginning-of-property beg 'syntax-type)) - (goto-char beg))) + (let ((new-beg (cperl-beginning-of-property beg 'syntax-type))) + (setq beg (if (= new-beg beg) nil new-beg)) + (goto-char new-beg))) (setq beg (point)) (goto-char end) (while (and end -- 1.8.4.2 --=-=-=-- From debbugs-submit-bounces@debbugs.gnu.org Sun Nov 03 20:49:12 2013 Received: (at 15778) by debbugs.gnu.org; 4 Nov 2013 01:49:12 +0000 Received: from localhost ([127.0.0.1]:33275 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.80) (envelope-from ) id 1Vd9Hy-0000fm-VN for submit@debbugs.gnu.org; Sun, 03 Nov 2013 20:49:11 -0500 Received: from ironport2-out.teksavvy.com ([206.248.154.182]:44076) by debbugs.gnu.org with esmtp (Exim 4.80) (envelope-from ) id 1Vd9Hh-0000f3-38 for 15778@debbugs.gnu.org; Sun, 03 Nov 2013 20:48:58 -0500 X-IronPort-Anti-Spam-Filtered: true X-IronPort-Anti-Spam-Result: Av4EABK/CFFMCqDs/2dsb2JhbABEvw4Xc4IfAQVWIxALDiYSFBgNJIgkwS2RCgOIYZwZgV6DFQ X-IPAS-Result: Av4EABK/CFFMCqDs/2dsb2JhbABEvw4Xc4IfAQVWIxALDiYSFBgNJIgkwS2RCgOIYZwZgV6DFQ X-IronPort-AV: E=Sophos;i="4.84,565,1355115600"; d="scan'208";a="37006698" Received: from 76-10-160-236.dsl.teksavvy.com (HELO pastel.home) ([76.10.160.236]) by ironport2-out.teksavvy.com with ESMTP/TLS/ADH-AES256-SHA; 03 Nov 2013 20:48:47 -0500 Received: by pastel.home (Postfix, from userid 20848) id BE74960CC4; Sun, 3 Nov 2013 20:48:46 -0500 (EST) From: Stefan Monnier To: Nathan Trapuzzano Subject: Re: bug#15778: 24.3; cperl-mode causes emacs to lock up Message-ID: References: <871u30cqtq.fsf@nbtrap.com> <83mwlobb0i.fsf@gnu.org> <87mwlob9lz.fsf@nbtrap.com> <83iowcb2wf.fsf@gnu.org> <87y5589ni7.fsf@nbtrap.com> <83habway1l.fsf@gnu.org> <87sivg81pp.fsf@nbtrap.com> <87y557dg71.fsf@rosalinde.fritz.box> <87li165p7z.fsf@rosalinde.fritz.box> <87habtvgng.fsf@nbtrap.com> <87a9hlwqkq.fsf@rosalinde.fritz.box> <87k3gpsi1l.fsf@nbtrap.com> <8761s9w9z2.fsf@rosalinde.fritz.box> <87fvrdqnad.fsf@nbtrap.com> <87y555unuw.fsf@rosalinde.fritz.box> <87li15p0am.fsf@nbtrap.com> Date: Sun, 03 Nov 2013 20:48:46 -0500 In-Reply-To: <87li15p0am.fsf@nbtrap.com> (Nathan Trapuzzano's message of "Sun, 03 Nov 2013 17:50:41 -0500") User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/24.3.50 (gnu/linux) MIME-Version: 1.0 Content-Type: text/plain X-Spam-Score: 0.3 (/) X-Debbugs-Envelope-To: 15778 Cc: Stephen Berman , 15778@debbugs.gnu.org X-BeenThere: debbugs-submit@debbugs.gnu.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: debbugs-submit-bounces@debbugs.gnu.org Sender: "Debbugs-submit" X-Spam-Score: 0.3 (/) > - (if (setq beg (cperl-beginning-of-property beg 'syntax-type)) > - (goto-char beg))) > + (let ((new-beg (cperl-beginning-of-property beg 'syntax-type))) > + (setq beg (if (= new-beg beg) nil new-beg)) > + (goto-char new-beg))) Hmm... what if new-beg is nil? The current code explicitly tests this case to avoid calling `goto-char', whereas your code calls goto-char unconditionally. Why? Stefan From debbugs-submit-bounces@debbugs.gnu.org Sun Nov 03 21:29:42 2013 Received: (at 15778) by debbugs.gnu.org; 4 Nov 2013 02:29:42 +0000 Received: from localhost ([127.0.0.1]:33298 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.80) (envelope-from ) id 1Vd9vC-0001dC-26 for submit@debbugs.gnu.org; Sun, 03 Nov 2013 21:29:42 -0500 Received: from oproxy17-pub.mail.unifiedlayer.com ([74.220.201.171]:58686) by debbugs.gnu.org with smtp (Exim 4.80) (envelope-from ) id 1Vd9v9-0001d4-KO for 15778@debbugs.gnu.org; Sun, 03 Nov 2013 21:29:40 -0500 Received: (qmail 19070 invoked by uid 0); 4 Nov 2013 02:29:37 -0000 Received: from unknown (HELO host393.hostmonster.com) (66.147.240.193) by oproxy17-pub.mail.unifiedlayer.com with SMTP; 4 Nov 2013 02:29:37 -0000 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=nbtrap.com; s=default; h=Content-Type:MIME-Version:Message-ID:In-Reply-To:Date:References:Subject:Cc:To:From; bh=dYXkQV56mrDB2siIgiajVQHpqirzpYpdwpBEDFG0ocU=; b=LNHI3iDb99ioVaB9FXDs44lbouyeESU1gk1dHCwc49CWGJ0Qlw/bjl2674Qtp3OFY/MmpcaSA4s0mtMat5+Ro9fVaK2f6Ap+b0SIbgKeLcIVo7UzAvrwPiWbLs6swQgn; Received: from [50.90.253.209] (port=35681 helo=Nathan-GNU) by host393.hostmonster.com with esmtpsa (TLSv1:CAMELLIA128-SHA:128) (Exim 4.80) (envelope-from ) id 1Vd9v7-0000f7-EM; Sun, 03 Nov 2013 19:29:37 -0700 From: Nathan Trapuzzano To: Stefan Monnier Subject: Re: bug#15778: 24.3; cperl-mode causes emacs to lock up References: <871u30cqtq.fsf@nbtrap.com> <83mwlobb0i.fsf@gnu.org> <87mwlob9lz.fsf@nbtrap.com> <83iowcb2wf.fsf@gnu.org> <87y5589ni7.fsf@nbtrap.com> <83habway1l.fsf@gnu.org> <87sivg81pp.fsf@nbtrap.com> <87y557dg71.fsf@rosalinde.fritz.box> <87li165p7z.fsf@rosalinde.fritz.box> <87habtvgng.fsf@nbtrap.com> <87a9hlwqkq.fsf@rosalinde.fritz.box> <87k3gpsi1l.fsf@nbtrap.com> <8761s9w9z2.fsf@rosalinde.fritz.box> <87fvrdqnad.fsf@nbtrap.com> <87y555unuw.fsf@rosalinde.fritz.box> <87li15p0am.fsf@nbtrap.com> Date: Sun, 03 Nov 2013 21:29:35 -0500 In-Reply-To: (Stefan Monnier's message of "Sun, 03 Nov 2013 20:48:46 -0500") Message-ID: <87fvrcq4q8.fsf@nbtrap.com> User-Agent: Gnus/5.130007 (Ma Gnus v0.7) Emacs/24.3.50 (gnu/linux) MIME-Version: 1.0 Content-Type: text/plain X-Identified-User: {1585:host393.hostmonster.com:nbtrapco:nbtrap.com} {sentby:smtp auth 50.90.253.209 authed with nbtrap@nbtrap.com} X-Spam-Score: 0.0 (/) X-Debbugs-Envelope-To: 15778 Cc: Stephen Berman , 15778@debbugs.gnu.org X-BeenThere: debbugs-submit@debbugs.gnu.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: debbugs-submit-bounces@debbugs.gnu.org Sender: "Debbugs-submit" X-Spam-Score: 0.0 (/) Stefan Monnier writes: > Hmm... what if new-beg is nil? > The current code explicitly tests this case to avoid calling > `goto-char', whereas your code calls goto-char unconditionally. > Why? > > > Stefan Because `cperl-beginning-of-property' explicitly never returns nil. In the extreme case, it returns (point-min). From debbugs-submit-bounces@debbugs.gnu.org Sun Nov 03 22:52:37 2013 Received: (at 15778-done) by debbugs.gnu.org; 4 Nov 2013 03:52:37 +0000 Received: from localhost ([127.0.0.1]:33383 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.80) (envelope-from ) id 1VdBDQ-0003kK-Bu for submit@debbugs.gnu.org; Sun, 03 Nov 2013 22:52:36 -0500 Received: from ironport2-out.teksavvy.com ([206.248.154.182]:46851) by debbugs.gnu.org with esmtp (Exim 4.80) (envelope-from ) id 1VdBDN-0003k4-Kp for 15778-done@debbugs.gnu.org; Sun, 03 Nov 2013 22:52:33 -0500 X-IronPort-Anti-Spam-Filtered: true X-IronPort-Anti-Spam-Result: Av4EABK/CFFMCqDs/2dsb2JhbABEvw4Xc4IeAQEEAVYjBQsLDiYSFBgNJBOICwawYpBLjQ+DewOIYZwZgV6DFYFR X-IPAS-Result: Av4EABK/CFFMCqDs/2dsb2JhbABEvw4Xc4IeAQEEAVYjBQsLDiYSFBgNJBOICwawYpBLjQ+DewOIYZwZgV6DFYFR X-IronPort-AV: E=Sophos;i="4.84,565,1355115600"; d="scan'208";a="37017327" Received: from 76-10-160-236.dsl.teksavvy.com (HELO fmsmemgm.homelinux.net) ([76.10.160.236]) by ironport2-out.teksavvy.com with ESMTP/TLS/ADH-AES256-SHA; 03 Nov 2013 22:52:27 -0500 Received: by fmsmemgm.homelinux.net (Postfix, from userid 20848) id 14FA1AE219; Sun, 3 Nov 2013 22:52:29 -0500 (EST) From: Stefan Monnier To: Nathan Trapuzzano Subject: Re: bug#15778: 24.3; cperl-mode causes emacs to lock up Message-ID: References: <871u30cqtq.fsf@nbtrap.com> <83mwlobb0i.fsf@gnu.org> <87mwlob9lz.fsf@nbtrap.com> <83iowcb2wf.fsf@gnu.org> <87y5589ni7.fsf@nbtrap.com> <83habway1l.fsf@gnu.org> <87sivg81pp.fsf@nbtrap.com> <87y557dg71.fsf@rosalinde.fritz.box> <87li165p7z.fsf@rosalinde.fritz.box> <87habtvgng.fsf@nbtrap.com> <87a9hlwqkq.fsf@rosalinde.fritz.box> <87k3gpsi1l.fsf@nbtrap.com> <8761s9w9z2.fsf@rosalinde.fritz.box> <87fvrdqnad.fsf@nbtrap.com> <87y555unuw.fsf@rosalinde.fritz.box> <87li15p0am.fsf@nbtrap.com> <87fvrcq4q8.fsf@nbtrap.com> Date: Sun, 03 Nov 2013 22:52:29 -0500 In-Reply-To: <87fvrcq4q8.fsf@nbtrap.com> (Nathan Trapuzzano's message of "Sun, 03 Nov 2013 21:29:35 -0500") User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/24.3.50 (gnu/linux) MIME-Version: 1.0 Content-Type: text/plain X-Spam-Score: 0.3 (/) X-Debbugs-Envelope-To: 15778-done Cc: 15778-done@debbugs.gnu.org, Stephen Berman , Jonathan Rockway X-BeenThere: debbugs-submit@debbugs.gnu.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: debbugs-submit-bounces@debbugs.gnu.org Sender: "Debbugs-submit" X-Spam-Score: 0.3 (/) > Because `cperl-beginning-of-property' explicitly never returns nil. In > the extreme case, it returns (point-min). Thanks, installed (as a "tiny change"), Stefan PS: If you intend to contribute more code to Emacs, we'll soon need you to sign some copyright paperwork. If you want to start this process right away, then fill the form below and email it to the FSF as instructed, so they can send you the proper paperwork to sign. Please email the following information to assign@gnu.org, and we will send you the assignment form for your past and future changes. Please use your full legal name (in ASCII characters) as the subject line of the message. ---------------------------------------------------------------------- REQUEST: SEND FORM FOR PAST AND FUTURE CHANGES [What is the name of the program or package you're contributing to?] Emacs [Did you copy any files or text written by someone else in these changes? Even if that material is free software, we need to know about it.] [Do you have an employer who might have a basis to claim to own your changes? Do you attend a school which might make such a claim?] [For the copyright registration, what country are you a citizen of?] [What year were you born?] [Please write your email address here.] [Please write your postal address here.] [Which files have you changed so far, and which new files have you written so far?] From unknown Sun Jun 22 07:41:39 2025 Received: (at fakecontrol) by fakecontrolmessage; To: internal_control@debbugs.gnu.org From: Debbugs Internal Request Subject: Internal Control Message-Id: bug archived. Date: Mon, 02 Dec 2013 12:24:04 +0000 User-Agent: Fakemail v42.6.9 # This is a fake control message. # # The action: # bug archived. thanks # This fakemail brought to you by your local debbugs # administrator