GNU bug report logs - #17324
24.3.90; (wrong-type-argument number-or-marker-p nil) in redisplay--update-region-highlight

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From: help-debbugs <at> gnu.org (GNU bug Tracking System)
To: Stefan Monnier <monnier <at> IRO.UMontreal.CA>
Cc: tracker <at> debbugs.gnu.org
Subject: bug#17324: closed (24.3.90; (wrong-type-argument number-or-marker-p
 nil) in redisplay--update-region-highlight)
Date: Wed, 23 Apr 2014 12:55:04 +0000

[Message part 1 (text/plain, inline)]

Your message dated Wed, 23 Apr 2014 08:54:18 -0400
with message-id <jwv38h4gqny.fsf-monnier+emacsbugs <at> gnu.org>
and subject line Re: bug#17324: 24.3.90; (wrong-type-argument number-or-marker-p nil) in redisplay--update-region-highlight
has caused the debbugs.gnu.org bug report #17324,
regarding 24.3.90; (wrong-type-argument number-or-marker-p nil) in redisplay--update-region-highlight
to be marked as done.

(If you believe you have received this mail in error, please contact
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-- 
17324: http://debbugs.gnu.org/cgi/bugreport.cgi?bug=17324
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Contact help-debbugs <at> gnu.org with problems

[Message part 2 (message/rfc822, inline)]

From: Nicolas Richard <theonewiththeevillook <at> yahoo.fr>
To: bug-gnu-emacs <at> gnu.org
Subject: 24.3.90; (wrong-type-argument number-or-marker-p nil) in
 redisplay--update-region-highlight
Date: Wed, 23 Apr 2014 13:54:58 +0200

Hi,

I got the following error (but I can't reproduce it in a fresh session) :

Debugger entered--Lisp error: (wrong-type-argument number-or-marker-p nil)
  min(2623 nil)
  (let* ((pt (window-point window)) (mark (mark)) (start (min pt mark)) (end (max pt mark)) (new (funcall redisplay-highlight-region-function start end window rol))) (if (equal new rol) nil (set-window-parameter window (quote internal-region-overlay) new)))
  (if (not (region-active-p)) (funcall redisplay-unhighlight-region-function rol) (let* ((pt (window-point window)) (mark (mark)) (start (min pt mark)) (end (max pt mark)) (new (funcall redisplay-highlight-region-function start end window rol))) (if (equal new rol) nil (set-window-parameter window (quote internal-region-overlay) new))))
  (let ((rol (window-parameter window (quote internal-region-overlay)))) (if (not (region-active-p)) (funcall redisplay-unhighlight-region-function rol) (let* ((pt (window-point window)) (mark (mark)) (start (min pt mark)) (end (max pt mark)) (new (funcall redisplay-highlight-region-function start end window rol))) (if (equal new rol) nil (set-window-parameter window (quote internal-region-overlay) new)))))
  (save-current-buffer (set-buffer (window-buffer window)) (let ((rol (window-parameter window (quote internal-region-overlay)))) (if (not (region-active-p)) (funcall redisplay-unhighlight-region-function rol) (let* ((pt (window-point window)) (mark (mark)) (start (min pt mark)) (end (max pt mark)) (new (funcall redisplay-highlight-region-function start end window rol))) (if (equal new rol) nil (set-window-parameter window (quote internal-region-overlay) new))))))
  redisplay--update-region-highlight(#<window 3 on *Backtrace*>)
  #[0 "\300\242\204\n.\303\304 !\207\300\242<\204.\300\305\306\211\307#\240\210	\203\".\310\303\300\242\"\207\311 \205).\312 \300\242\211\205S.\211@\211\304 =\204>.\211.=\203E.\303.!\210\202L.\n\313.\314\"!\210.A\266\202\202+.\262.\207" [((#<window 3 on *Backtrace*> #<window 7 on *magit: math-f-108-via-git*> #<window 1 on *scratch*>)) highlight-nonselected-windows redisplay-unhighlight-region-function redisplay--update-region-highlight selected-window window-list-1 nil t mapc window-minibuffer-p minibuffer-selected-window window-parameter internal-region-overlay] 7 "\n\n(fn)"]()
  funcall(#[0 "\300\242\204\n.\303\304 !\207\300\242<\204.\300\305\306\211\307#\240\210	\203\".\310\303\300\242\"\207\311 \205).\312 \300\242\211\205S.\211@\211\304 =\204>.\211.=\203E.\303.!\210\202L.\n\313.\314\"!\210.A\266\202\202+.\262.\207" [((#<window 3 on *Backtrace*> #<window 7 on *magit: math-f-108-via-git*> #<window 1 on *scratch*>)) highlight-nonselected-windows redisplay-unhighlight-region-function redisplay--update-region-highlight selected-window window-list-1 nil t mapc window-minibuffer-p minibuffer-selected-window window-parameter internal-region-overlay] 7 "\n\n(fn)"])
  redisplay--update-region-highlights(t)
  apply(redisplay--update-region-highlights t)
  #[128 "\300\301.\"\210\300\302.\"\207" [apply redisplay--update-region-highlights ignore nil] 4 nil nil](t)
  redisplay_internal\ \(C\ function\)()

In GNU Emacs 24.3.90.7 (i686-pc-linux-gnu, X toolkit, Xaw3d scroll bars)
 of 2014-04-23 on geodiff-mac3
Windowing system distributor `The X.Org Foundation', version 11.0.11304000
System Description:	Gentoo Base System release 2.2

Configured using:
 `configure --with-x-toolkit=lucid --enable-checking 'CFLAGS= -O0 -g3''

Important settings:
  value of $LANG: fr_FR.UTF-8
  locale-coding-system: utf-8-unix

Major mode: Debugger

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  semantic-minor-modes-format: ((:eval (if (or semantic-highlight-edits-mode semantic-show-unmatched-syntax-mode)  S)))
  global-semanticdb-minor-mode: t
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  semantic-mode: t
  yas/global-mode: t
  projectile-global-mode: t
  projectile-mode: t
  dynamic-completion-mode: t
  magit-auto-revert-mode: t
  shell-dirtrack-mode: t
  diff-auto-refine-mode: t
  minibuffer-depth-indicate-mode: t
  show-paren-mode: t
  recentf-mode: t
  winner-mode: t
  global-discover-mode: t
  discover-mode: t
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  display-time-mode: t
  override-global-mode: t
  tooltip-mode: t
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  mouse-wheel-mode: t
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Recent input:
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Recent messages:
Proceeding, will debug on next eval or call.
Entering debugger...
Continuing.
Back to top level.
Entering debugger...
Continuing.
Entering debugger...
mouse-2, RET: find function's definition
Mark saved where search started
Mark set [3 times]

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two-mode-mode tex-site auto-loads ido-hacks ido org byte-opt advice
help-fns org-macro org-footnote org-pcomplete pcomplete org-list
org-faces org-entities time-date noutline outline org-version
ob-emacs-lisp ob ob-tangle org-src ob-ref ob-lob ob-table ob-keys ob-exp
ob-comint comint ansi-color ring ob-core ob-eval org-compat org-macs
org-loaddefs format-spec find-func cal-menu easymenu calendar
cal-loaddefs package use-package bytecomp byte-compile cconv bind-key
easy-mmode tooltip electric uniquify 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 prog-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 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 make-network-process dbusbind gfilenotify dynamic-setting
system-font-setting font-render-setting x-toolkit x multi-tty emacs)

Memory information:
((conses 8 1211328 33930)
 (symbols 24 56568 0)
 (miscs 20 19479 8235)
 (strings 16 142444 26207)
 (string-bytes 1 4594156)
 (vectors 8 51281)
 (vector-slots 4 888532 4234)
 (floats 8 669 118)
 (intervals 28 102369 0)
 (buffers 512 88)
 (heap 1024 31847 1754))

-- 
Nico.

[Message part 3 (message/rfc822, inline)]

From: Stefan Monnier <monnier <at> IRO.UMontreal.CA>
To: Nicolas Richard <theonewiththeevillook <at> yahoo.fr>
Cc: 17324-done <at> debbugs.gnu.org
Subject: Re: bug#17324: 24.3.90;
 (wrong-type-argument number-or-marker-p nil) in
 redisplay--update-region-highlight
Date: Wed, 23 Apr 2014 08:54:18 -0400

> I got the following error (but I can't reproduce it in a fresh session) :
> Debugger entered--Lisp error: (wrong-type-argument number-or-marker-p nil)
>   min(2623 nil)
[...]
>   redisplay--update-region-highlight(#<window 3 on *Backtrace*>)

I've been tracking down this problem for a while now, but can't seem to
find its source.  So I installed the patch below to work around it for now.


        Stefan


--- lisp/simple.el	2014-04-12 19:20:44 +0000
+++ lisp/simple.el	2014-04-23 12:50:59 +0000
@@ -4495,7 +4495,12 @@
 mode is enabled.  Usually, such commands should use
 `use-region-p' instead of this function, because `use-region-p'
 also checks the value of `use-empty-active-region'."
-  (and transient-mark-mode mark-active))
+  (and transient-mark-mode mark-active
+       ;; FIXME: Somehow we sometimes end up with mark-active non-nil but
+       ;; without the mark being set (e.g. bug#17324).  We really should fix
+       ;; that problem, but in the mean time, let's make sure we don't say the
+       ;; region is active when there's no mark.
+       (mark)))
 
 
 (defvar redisplay-unhighlight-region-function

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