GNU bug report logs - #546
scroll-margin not respected for downward scrolling when show-trailing-whitespace is t

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From: help-debbugs <at> gnu.org (Emacs bug Tracking System)
To: Greg Falcon <gfalcon <at> itasoftware.com>
Subject: bug#546 closed by Chong Yidong <cyd <at> stupidchicken.com> (Re: 
 inconsistent behavior with scroll-margin and scroll-conservatively)

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

This is an automatic notification regarding your bug report
which was filed against the emacs package:

#546: scroll-margin not respected for downward scrolling when show-trailing-whitespace is t

It has been closed by Chong Yidong <cyd <at> stupidchicken.com>.

Their explanation is attached below along with your original report.
If this explanation is unsatisfactory and you have not received a
better one in a separate message then please contact Chong Yidong <cyd <at> stupidchicken.com> by
replying to this email.


-- 
546: http://debbugs.gnu.org/cgi/bugreport.cgi?bug=546
Emacs Bug Tracking System
Contact help-debbugs <at> gnu.org with problems

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

From: Chong Yidong <cyd <at> stupidchicken.com>
To: Greg Falcon <gfalcon <at> itasoftware.com>, Andy Grover <andy <at> groveronline.com>
Cc: 546-done <at> debbugs.gnu.org
Subject: Re: inconsistent behavior with scroll-margin and scroll-conservatively
Date: Wed, 06 Aug 2008 14:29:23 -0400

I've just checked in fixes to Emacs' display engine that should solve
the problems with scroll-margin.  These fixes are not safe enough for
Emacs 22, but they'll be present in Emacs 23 (current CVS trunk).

Thanks for the bug reports.

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

From: Greg Falcon <gfalcon <at> itasoftware.com>
To: bug-gnu-emacs <at> gnu.org
Subject: scroll-margin not respected for downward scrolling when show-trailing-whitespace
 is t
Date: Thu, 10 Jul 2008 11:35:42 -0400

Please write in English if possible, because the Emacs maintainers
usually do not have translators to read other languages for them.

Your bug report will be posted to the bug-gnu-emacs <at> gnu.org mailing list,
and to the gnu.emacs.bug news group.

Please describe exactly what actions triggered the bug
and the precise symptoms of the bug:


When show-trailing-whitespace is on, the scroll-margin feature doesn't 
work when approaching the bottom of a window (though it does work for 
the top of a window).  Setting show-trailing-whitespace to nil makes the 
problem go away.


If Emacs crashed, and you have the Emacs process in the gdb debugger,
please include the output from the following gdb commands:
    `bt full' and `xbacktrace'.
If you would like to further debug the crash, please read the file
/usr/local/share/emacs/22.2/etc/DEBUG for instructions.


In GNU Emacs 22.2.1 (x86_64-unknown-linux-gnu, X toolkit, Xaw3d scroll bars)
 of 2008-07-10 on deng-gfalc
Windowing system distributor `The X.Org Foundation', version 11.0.60801000
Important settings:
  value of $LC_ALL: nil
  value of $LC_COLLATE: nil
  value of $LC_CTYPE: nil
  value of $LC_MESSAGES: nil
  value of $LC_MONETARY: nil
  value of $LC_NUMERIC: nil
  value of $LC_TIME: nil
  value of $LANG: en_US.UTF-8
  locale-coding-system: utf-8
  default-enable-multibyte-characters: t

Major mode: Emacs-Lisp

Minor modes in effect:
  tooltip-mode: t
  mouse-wheel-mode: t
  menu-bar-mode: t
  file-name-shadow-mode: t
  global-font-lock-mode: t
  font-lock-mode: t
  blink-cursor-mode: t
  unify-8859-on-encoding-mode: t
  utf-translate-cjk-mode: t
  auto-compression-mode: t
  column-number-mode: t
  line-number-mode: t

Recent input:
<down> <down> <down> <down> <down> <down> <down> <down>
<down> <down> <down> <down> <down> <down> <down> <down>
<down> <down> <down> <down> <down> <down> <down> <down>
<down> <down> <down> <down> <down> <down> <down> <down>
<down> <down> <down> <down> <down> <down> <down> <down>
<down> <down> <down> <down> <down> <down> <down> <down>
<down> <down> <down> <down> <down> <down> <down> <down>
<down> <down> <down> <down> <down> <down> <down> <down>
M-x C-g <escape> : ( s e t q SPC s c r o l l - m a
r g i n SPC 5 ) <return> <up> <up> <up> <up> <up> <up>
<up> <up> <up> <up> <up> <up> <up> <up> <up> <up> <up>
<up> <up> <up> <up> <up> <up> <up> <up> <up> <up> <up>
<up> <up> <up> <up> <up> <up> <up> <up> <up> <up> <up>
<up> <up> <up> <up> <up> <down> <down> <down> <down>
<down> <down> <down> <down> <down> <down> <down> <down>
<down> <down> <down> <down> <down> <down> <down> <down>
<down> <down> <down> <down> <down> <down> <down> <down>
<down> <down> <down> <down> <down> <down> <down> <down>
<down> <down> <down> <down> <down> <down> <down> <down>
<down> <down> <down> <down> <down> <down> <down> <down>
<down> <down> <down> <down> <down> <down> <down> <down>
<down> <down> <down> <down> <down> <down> <down> <down>
<down> <down> <down> <down> <down> <down> <down> <down>
<down> <up> <up> <up> <up> <up> <up> <up> <up> <up>
<up> <up> <up> <up> <up> <up> <up> <up> <up> <up> <up>
<up> <up> <up> <up> <up> <up> <up> <up> <up> <up> <up>
<up> <up> <up> <up> <up> <up> <up> <up> <up> <up> <up>
<up> <up> <up> <up> <up> <up> <up> <up> <up> <up> <up>
<up> <up> <up> <up> <up> <up> <up> <up> <up> <up> <up>
<up> <up> <up> <up> <up> <up> <up> <up> <up> <up> <up>
<up> <up> <up> M-x r e p <tab> o <tab> r <tab> <re
turn>

Recent messages:
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