From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.io!.POSTED.ciao.gmane.io!not-for-mail From: Eli Zaretskii Newsgroups: gmane.emacs.bugs Subject: bug#40317: 27.0.90; Reverting a buffer that visits C file signals an error Date: Sun, 29 Mar 2020 16:26:33 +0300 Message-ID: <83k1335m2e.fsf@gnu.org> Injection-Info: ciao.gmane.io; posting-host="ciao.gmane.io:159.69.161.202"; logging-data="89322"; mail-complaints-to="usenet@ciao.gmane.io" Cc: Alan Mackenzie To: 40317@debbugs.gnu.org Original-X-From: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane-mx.org@gnu.org Mon Mar 30 04:37:53 2020 Return-path: Envelope-to: geb-bug-gnu-emacs@m.gmane-mx.org Original-Received: from lists.gnu.org ([209.51.188.17]) by ciao.gmane.io with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.92) (envelope-from ) id 1jIkJF-000N9B-4J for geb-bug-gnu-emacs@m.gmane-mx.org; Mon, 30 Mar 2020 04:37:53 +0200 Original-Received: from localhost ([::1]:43766 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1jIkJE-0006HM-2v for geb-bug-gnu-emacs@m.gmane-mx.org; Sun, 29 Mar 2020 22:37:52 -0400 Original-Received: from eggs.gnu.org ([2001:470:142:3::10]:54839) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1jIkHn-0003UR-Qe for bug-gnu-emacs@gnu.org; Sun, 29 Mar 2020 22:36:25 -0400 Original-Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1jIkHm-0003VO-F3 for bug-gnu-emacs@gnu.org; Sun, 29 Mar 2020 22:36:23 -0400 Original-Received: from debbugs.gnu.org ([209.51.188.43]:48631) by eggs.gnu.org with esmtps (TLS1.0:RSA_AES_128_CBC_SHA1:16) (Exim 4.71) (envelope-from ) id 1jIkHm-0003Uv-8W for bug-gnu-emacs@gnu.org; Sun, 29 Mar 2020 22:36:22 -0400 Original-Received: from Debian-debbugs by debbugs.gnu.org with local (Exim 4.84_2) (envelope-from ) id 1jIkHm-0004gj-6P for bug-gnu-emacs@gnu.org; Sun, 29 Mar 2020 22:36:22 -0400 X-Loop: help-debbugs@gnu.org Resent-From: Eli Zaretskii Resent-CC: bug-gnu-emacs@gnu.org Resent-Date: Mon, 30 Mar 2020 02:36:22 +0000 Resent-Message-ID: Resent-Sender: help-debbugs@gnu.org X-GNU-PR-Message: report 40317 X-GNU-PR-Package: emacs X-Debbugs-Original-To: bug-gnu-emacs@gnu.org Original-Received: via spool by submit@debbugs.gnu.org id=B.158553573717489 (code B ref -1); Mon, 30 Mar 2020 02:36:22 +0000 Original-Received: (at submit) by debbugs.gnu.org; 30 Mar 2020 02:35:37 +0000 Original-Received: from lists.gnu.org ([209.51.188.17]:35100) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1jIXxM-0001cS-Rd for submit@debbugs.gnu.org; Sun, 29 Mar 2020 09:26:29 -0400 Original-Received: from eggs.gnu.org ([2001:470:142:3::10]:56988) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1jIXxL-0006qp-Fz for bug-gnu-emacs@gnu.org; Sun, 29 Mar 2020 09:26:28 -0400 Original-Received: from fencepost.gnu.org ([2001:470:142:3::e]:50838) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1jIXxL-0007w8-26; Sun, 29 Mar 2020 09:26:27 -0400 Original-Received: from [176.228.60.248] (port=4995 helo=home-c4e4a596f7) by fencepost.gnu.org with esmtpsa (TLS1.2:RSA_AES_256_CBC_SHA1:256) (Exim 4.82) (envelope-from ) id 1jIXxJ-0007TE-U4; Sun, 29 Mar 2020 09:26:26 -0400 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-List-Received-Date: Sun, 29 Mar 2020 13:26:29 -0000 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-mx.org@gnu.org Original-Sender: "bug-gnu-emacs" Xref: news.gmane.io gmane.emacs.bugs:177845 Archived-At: When I visit a C source file that already has a buffer that visits it, and that file has been changed behind Emacs's back by "git pull", Emacs frequently signals an error. Here's an example: Debugger entered--Lisp error: (args-out-of-range # 1 217135) parse-partial-sexp(1 217135 nil nil nil syntax-table) c-after-change-mark-abnormal-strings(214738 215088 0) #f(compiled-function (fn) #)(c-after-change-mark-abnormal-strings) mapc(#f(compiled-function (fn) #) (c-depropertize-new-text c-after-change-escape-NL-in-string c-parse-quotes-after-change c-after-change-mark-abnormal-strings c-extend-font-lock-region-for-macros c-neutralize-syntax-in-CPP c-change-expand-fl-region)) c-after-change(214738 215088 0) insert-file-contents("branch/src/xfaces.c" t nil nil t) revert-buffer-insert-file-contents--default-function("branch/src/xfaces.c" nil) revert-buffer--default(t t) revert-buffer(t t) find-file-noselect("branch/src/xfaces.c" nil nil t) find-file("branch/src/xfaces.c" t) funcall-interactively(find-file "branch/src/xfaces.c" t) call-interactively(find-file nil nil) command-execute(find-file) In this particular case, the buffer's point-max is 216784, which explains the error, but I have no idea where did the 217135 value come from, because AFAICT the latest change in Git (the emacs-27 branch) made that file larger, not smaller. I hope this can be fixed soon, as this happens quite a lot to me, and is very annoying. In GNU Emacs 27.0.90 (build 3, i686-pc-mingw32) of 2020-03-06 built on HOME-C4E4A596F7 Windowing system distributor 'Microsoft Corp.', version 5.1.2600 System Description: Microsoft Windows XP Service Pack 3 (v5.1.0.2600) Recent messages: For information about GNU Emacs and the GNU system, type C-h C-a. Configured using: 'configure -C --prefix=/d/usr --with-wide-int --with-modules 'CFLAGS=-Og -gdwarf-4 -g3'' Configured features: XPM JPEG TIFF GIF PNG RSVG SOUND NOTIFY W32NOTIFY ACL GNUTLS LIBXML2 HARFBUZZ ZLIB TOOLKIT_SCROLL_BARS MODULES THREADS JSON PDUMPER LCMS2 GMP Important settings: value of $LANG: ENU locale-coding-system: cp1255 Major mode: Lisp Interaction Minor modes in effect: tooltip-mode: t global-eldoc-mode: t eldoc-mode: t electric-indent-mode: t mouse-wheel-mode: t tool-bar-mode: t menu-bar-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 line-number-mode: t transient-mark-mode: t Load-path shadows: None found. Features: (shadow sort mail-extr emacsbug message rmc puny dired dired-loaddefs format-spec rfc822 mml easymenu mml-sec password-cache epa derived epg epg-config gnus-util rmail rmail-loaddefs text-property-search time-date subr-x seq byte-opt gv bytecomp byte-compile cconv mm-decode mm-bodies mm-encode mail-parse rfc2231 mailabbrev gmm-utils mailheader cl-loaddefs cl-lib sendmail rfc2047 rfc2045 ietf-drums mm-util mail-prsvr mail-utils tooltip eldoc electric uniquify ediff-hook vc-hooks lisp-float-type mwheel dos-w32 ls-lisp disp-table term/w32-win w32-win w32-vars term/common-win tool-bar dnd fontset image regexp-opt fringe tabulated-list replace newcomment text-mode elisp-mode lisp-mode prog-mode register page tab-bar menu-bar rfn-eshadow isearch timer select scroll-bar mouse jit-lock font-lock syntax facemenu font-core term/tty-colors frame minibuffer cl-generic cham georgian utf-8-lang misc-lang vietnamese tibetan thai tai-viet lao korean japanese eucjp-ms cp51932 hebrew greek romanian slovak czech european ethiopic indian cyrillic chinese composite charscript charprop case-table epa-hook jka-cmpr-hook help simple abbrev obarray cl-preloaded nadvice loaddefs button faces cus-face macroexp files text-properties overlay sha1 md5 base64 format env code-pages mule custom widget hashtable-print-readable backquote threads w32notify w32 lcms2 multi-tty make-network-process emacs) Memory information: ((conses 16 50720 11407) (symbols 48 7171 1) (strings 16 18862 2117) (string-bytes 1 532860) (vectors 16 9508) (vector-slots 8 127133 8382) (floats 8 21 66) (intervals 40 252 93) (buffers 888 11))