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More clues on the redisplay bug (Re: Emacs appears to hang)
From: |
Károly Lőrentey |
Subject: |
More clues on the redisplay bug (Re: Emacs appears to hang) |
Date: |
Wed, 24 Jul 2002 12:32:41 +0200 |
User-agent: |
Gnus/5.090007 (Oort Gnus v0.07) Emacs/21.3.50 (i686-pc-linux-gnu) |
Juanma Barranquero <address@hidden> writes:
> On Fri, 19 Jul 2002 12:01:45 +0000 (UTC), "Robert J. Chassell"
> <address@hidden> wrote:
>
>> Another data point: no appearance of the bug without ruler-mode:
>
> Er... yes. That's why included M-x ruler-mode in the problem description.
> What I've reported is the simplest way of triggering it that I know.
The bug is not specific to ruler-mode, but I think it's a general
problem that may be related to header lines. I noticed something
similar in Info:
emacs -q --no-site-file
C-h i
C-v C-v
M-v M-v
<Horribly borken display with concatenated lines.>
This is what I see:
http://caesar.elte.hu/~lorentey/emacs-redisplay-bug.jpg
If I disable the fancy header line, the bug disappears:
emacs -q --no-site-file --eval '(setq Info-use-header-line nil)'
C-h i
C-v C-v
M-v M-v
<Normal behaviour.>
All this with today's CVS Emacs, under X.
A few experiments with my previous builds indicate that the bug may be
related to this change:
2002-07-07 Richard M. Stallman <address@hidden>
* xdisp.c (make_cursor_line_fully_visible): Don't try short scrolls.
Instead just return 0 when there is something to be done.
(try_scrolling): If make_cursor_line_fully_visible returns 0,
retry scrolling as if cursor were off the bottom.
(try_cursor_movement): If make_cursor_line_fully_visible returns 0,
return CURSOR_MOVEMENT_MUST_SCROLL.
(redisplay_window): If make_cursor_line_fully_visible returns 0,
go to try_to_scroll.
--
Lőrentey Károly
- [PATCH] Re: Emacs appears to hang, (continued)
- [PATCH] Re: Emacs appears to hang, Kim F. Storm, 2002/07/17
- Re: Emacs appears to hang, Juanma Barranquero, 2002/07/18
- Re: Emacs appears to hang, Robert J. Chassell, 2002/07/18
- Re: Emacs appears to hang, Juanma Barranquero, 2002/07/18
- Re: Emacs appears to hang, Robert J. Chassell, 2002/07/18
- Re: Emacs appears to hang, Juanma Barranquero, 2002/07/19
- Re: Emacs appears to hang, Robert J. Chassell, 2002/07/19
- Redisplay bug (was Re: Emacs appears to hang), Juanma Barranquero, 2002/07/19
- Re: Emacs appears to hang, Robert J. Chassell, 2002/07/19
- Re: Emacs appears to hang, Juanma Barranquero, 2002/07/19
- More clues on the redisplay bug (Re: Emacs appears to hang),
Károly Lőrentey <=
- Re: More clues on the redisplay bug (Re: Emacs appears to hang), Juanma Barranquero, 2002/07/24
- Re: [PATCH] Re: Emacs appears to hang, Richard Stallman, 2002/07/20