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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Message #5 received at submit <at> debbugs.gnu.org (full text, mbox):

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

Minor modes in effect:
  semantic-minor-modes-format: ((:eval (if (or semantic-highlight-edits-mode semantic-show-unmatched-syntax-mode)  S)))
  global-semanticdb-minor-mode: t
  global-semantic-idle-scheduler-mode: t
  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
  server-mode: t
  display-time-mode: t
  override-global-mode: t
  tooltip-mode: t
  electric-indent-mode: t
  mouse-wheel-mode: t
  file-name-shadow-mode: t
  global-font-lock-mode: t
  font-lock-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:
M-! e c h o SPC f o o <return> M-! <up> <up> <down> 
<down> M-! C-g M-= c C-n C-n C-n C-n C-n b b C-g M-! 
<up> <up> M-o C-c o a / t r e e <return> y C-s C-s 
g i t C-n M-o C-s C-s C-n C-n <return> C-n C-n C-a 
C-f C-f C-SPC C-e M-w M-o C-x b m a g i <return> l 
- a l <switch-frame> ESC O B w q <switch-frame> l <next> 
<down> <down> <down> <down> <down> <down> <down> <down> 
<down> <down> <down> <down> <down> <down> <down> <down> 
<up> <up> <up> <up> <up> <up> <up> C-w M-! C-y M-y 
C-/ C-a C-k C-y M-y M-y C-b <C-left> C-y M-y <C-left> 
<S-up> <S-right> C-w <S-down> C-y C-k <return> <return> 
<f5> <S-left> <up> <up> <up> <up> <home> <C-right> 
<C-left> C-SPC <end> <C-left> M-w M-o M-! C-y SPC <backspace> 
C-y M-y <return> <left> <left> <down> q C-h e M-o C-p 
C-p C-p C-e C-p C-p C-b C-n C-e C-b C-b M-x m a g i 
t - s h o <tab> - c o m <tab> <tab> <return> <S-up> 
<C-left> C-SPC <C-right> w <S-down> C-y <return> c 
q M-o M-o c q C-n C-n C-n C-n <up> <up> v <up> v <up> 
v <down> <up> <down> <down> <down> <down> <down> <down> 
<up> <up> <up> <up> <up> <up> <return> <down> <down> 
C-M-x <S-left> <S-right> M-o C-p h C-n d c c <down> 
<down> <down> <down> <down> <up> <up> <up> <left> <left> 
<return> <left> <down> <up> <down> <tab> <up> <up> 
<down> <down> <return> <down> <down> <down> <down> 
<right> <right> <down> C-s m i n C-p C-n M-f C-p C-p 
C-p C-p C-p C-p C-p C-M-b C-M-SPC M-w M-o <C-home> 
C-SPC <C-end> M-w M-x r e p o r t - e m <tab> <tab> 
<return>

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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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 #10 received at 17324-done <at> debbugs.gnu.org (full text, mbox):

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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