Subject: bug#12384: closed (Re: bug#12384: 24.2.50; NS: mouse movement causes hang during scroll benchmark)

From: [email-masked] (GNU bug Tracking System)
Date: Fri, 12 Oct 2012 17:53:02 +0000

Your bug report

#12384: 24.2.50; NS: mouse movement causes hang during scroll benchmark

which was filed against the emacs package, has been closed.

The explanation is attached below, along with your original report.
If you require more details, please reply to [email-masked].

-- 
12384: http://debbugs.gnu.org/cgi/bugreport.cgi?bug=12384
GNU Bug Tracking System
Contact [email-masked] with problems

Subject: Re: bug#12384: 24.2.50; NS: mouse movement causes hang during scroll benchmark
From: Jan Djärv <[email-masked]>
To: YAMAMOTO Mitsuharu <[email-masked]>
Cc: [email-masked]
Date: Fri, 12 Oct 2012 19:51:30 +0200
List-Id: <debbugs-submit.debbugs.gnu.org>

Hello.

This has been fixed in the trunk.

	Jan D.

8 sep 2012 kl. 10:36 skrev YAMAMOTO Mitsuharu <[email-masked]>:

> Steps to Reproduce:
> 
> 1. $ .../Emacs.app/Contents/MacOS/Emacs -Q &
> 2. Evaluate the following expression:
> 
> ;; Scroll benchmark from
> ;; http://lists.gnu.org/archive/html/emacs-devel/2012-08/msg00411.html
> (defun scroll-benchmark () 
>   (interactive) 
>   (let ((oldgc gcs-done) 
>         (oldtime (float-time))) 
>     (condition-case nil (while t (scroll-up) (redisplay)) 
>       (error (message "GCs: %d Elapsed time: %f seconds" 
>                       (- gcs-done oldgc) (- (float-time) oldtime)))))) 
> 
> 3. Evaluate the following expression:
> 
> (progn
>  (find-file (expand-file-name "src/xdisp.c" source-directory))
>  (goto-char (point-min))
>  (redisplay)
>  (scroll-benchmark))
> 
> 4. Wait for the benchmark to finish.
> 5. Repeat Step 3.
> 6. Before the second benchmark run completes, move the mouse pointer.
> 
> Then, we can observe the followings until the benchmark finishes.
> 
>  - The scroll bar thumb stops moving.
>  - The mouse pointer turns into the "spinning rainbow".
>  - C-g cannot quit the benchmark.
> 
> This does not happen on X11 builds or the Mac port.
> 
> See also
> http://lists.gnu.org/archive/html/emacs-devel/2012-08/msg00469.html .
> 
> 				     YAMAMOTO Mitsuharu
> 				[email-masked]
> 
> In GNU Emacs 24.2.50.1 (x86_64-apple-darwin12.1.0, NS apple-appkit-1187.00)
> of 2012-09-08 on YAMAMOTO-no-iMac.local
> Bzr revision: 109934 [email-masked]
> Windowing system distributor `Apple', version 10.3.1187
> Configured using:
> `configure '--with-ns''
> 
> Important settings:
>  value of $LANG: ja_JP.UTF-8
>  locale-coding-system: utf-8-unix
>  default enable-multibyte-characters: t
> 
> Major mode: Lisp Interaction
> 
> Minor modes in effect:
>  tooltip-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
> 
> 

Subject: 24.2.50; NS: mouse movement causes hang during scroll benchmark
From: YAMAMOTO Mitsuharu <[email-masked]>
To: [email-masked]
Date: Sat, 08 Sep 2012 17:36:22 +0900
List-Id: <debbugs-submit.debbugs.gnu.org>

Steps to Reproduce:

1. $ .../Emacs.app/Contents/MacOS/Emacs -Q &
2. Evaluate the following expression:

;; Scroll benchmark from
;; http://lists.gnu.org/archive/html/emacs-devel/2012-08/msg00411.html
(defun scroll-benchmark () 
   (interactive) 
   (let ((oldgc gcs-done) 
         (oldtime (float-time))) 
     (condition-case nil (while t (scroll-up) (redisplay)) 
       (error (message "GCs: %d Elapsed time: %f seconds" 
                       (- gcs-done oldgc) (- (float-time) oldtime)))))) 

3. Evaluate the following expression:

(progn
  (find-file (expand-file-name "src/xdisp.c" source-directory))
  (goto-char (point-min))
  (redisplay)
  (scroll-benchmark))

4. Wait for the benchmark to finish.
5. Repeat Step 3.
6. Before the second benchmark run completes, move the mouse pointer.

Then, we can observe the followings until the benchmark finishes.

  - The scroll bar thumb stops moving.
  - The mouse pointer turns into the "spinning rainbow".
  - C-g cannot quit the benchmark.

This does not happen on X11 builds or the Mac port.

See also
http://lists.gnu.org/archive/html/emacs-devel/2012-08/msg00469.html .

				     YAMAMOTO Mitsuharu
				[email-masked]

In GNU Emacs 24.2.50.1 (x86_64-apple-darwin12.1.0, NS apple-appkit-1187.00)
 of 2012-09-08 on YAMAMOTO-no-iMac.local
Bzr revision: 109934 [email-masked]
Windowing system distributor `Apple', version 10.3.1187
Configured using:
 `configure '--with-ns''

Important settings:
  value of $LANG: ja_JP.UTF-8
  locale-coding-system: utf-8-unix
  default enable-multibyte-characters: t

Major mode: Lisp Interaction

Minor modes in effect:
  tooltip-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