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: Chong Yidong <cyd <at> stupidchicken.com>
Subject: bug#546: marked as done (scroll-margin not respected for downward
 scrolling when show-trailing-whitespace is t)

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

Your message dated Wed, 06 Aug 2008 14:29:23 -0400
with message-id <87wsiuc7zw.fsf <at> stupidchicken.com>
and subject line Re: inconsistent behavior with scroll-margin and scroll-conservatively
has caused the Emacs bug report #546,
regarding scroll-margin not respected for downward scrolling when show-trailing-whitespace is t
to be marked as done.

This means that you claim that the problem has been dealt with.
If this is not the case it is now your responsibility to reopen the
bug report if necessary, and/or fix the problem forthwith.

(NB: If you are a system administrator and have no idea what this
message is talking about, this may indicate a serious mail system
misconfiguration somewhere. Please contact don <at> donarmstrong.com
immediately.)


-- 
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: 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:
("emacs")
Loading advice...done
Loading server...done
For information about GNU Emacs and the GNU system, type C-h C-a.
Making completion list...
Quit [2 times]
5 (#o5, #x5)
Making completion list... [2 times]
Loading emacsbug...done
call-interactively: Text is read-only

[Message part 3 (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.

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