set-window-point

[Nick Roberts]

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

SET-WINDOW-POINT DOESN'T SEEM TO ALWAYS WORK.

Its a bit obscure but here goes anyway:

When it fails for me:

The window is selected (so windows_or_buffers_changed doesn't increment).
The window is dedicated in its own frame (possibly not relevant).

HOW TO REPRODUCE:

M-x gdb

Run gdb (like this): gdb --annotate=3 prog

In the GUD buffer:

(gdb) b main
Breakpoint 1 at ...
(gdb) run

Select Gud->GDB-Windows->Disassembly on the menu-bar

The disassembly buffer appears in the parent frame (depending on your set-up)
and the buffer is positioned to display the overlay arrow and current line
of assembly.

Type q to kill this buffer.

Select Gud->GDB-Frames->Disassembly on the menu-bar

The disassembly buffer appears in its own frame but the cursor is at the start
of the buffer and the overlay arrow is generaly not visible.  However it
should be because the last line of gdb-assembler-custom uses set-window-point
which I can see, with edebug, has the right arguments.

Nick


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
/home/nickrob/emacs/etc/DEBUG for instructions.


In GNU Emacs 22.0.50.9 (i686-pc-linux-gnu, X toolkit, Xaw3d scroll bars)
 of 2005-11-03 on kahikatea.snap.net.nz
X server distributor `The X.Org Foundation', version 11.0.60801000
configured using `configure 'CFLAGS=-g3''

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:
  show-paren-mode: t
  tooltip-mode: t
  auto-compression-mode: t
  mouse-wheel-mode: t
  menu-bar-mode: t
  global-font-lock-mode: t
  font-lock-mode: t
  unify-8859-on-encoding-mode: t
  utf-translate-cjk-mode: t
  line-number-mode: t
  transient-mark-mode: t

Recent input:
<drag-mouse-1> <down-mouse-1> <mouse-movement> <mouse-movement> 
<drag-mouse-1> <switch-frame> <down-mouse-1> <mouse-1> 
<down-mouse-2> <mouse-2> SPC <down-mouse-1> <mouse-movement> 
<mouse-1> <switch-frame> <down-mouse-1> <mouse-movement> 
<mouse-1> <down-mouse-1> <mouse-1> <end> <switch-frame> 
<switch-frame> <down-mouse-1> <mouse-movement> <mouse-1> 
v / m y m a i l <return> <down-mouse-1> <mouse-1> <end> 
<down-mouse-2> <mouse-2> <switch-frame> <down-mouse-1> 
<mouse-movement> <mouse-1> <switch-frame> <down-mouse-1> 
<mouse-movement> <mouse-1> <down-mouse-1> <mouse-movement> 
<mouse-movement> <drag-mouse-1> <switch-frame> <down-mouse-1> 
<mouse-1> <down-mouse-2> <mouse-2> <down-mouse-1> <mouse-movement> 
<mouse-1> <backspace> <down-mouse-1> <mouse-movement> 
<mouse-1> C-c C-c <switch-frame> <down-mouse-1> <mouse-1> 
q <down-mouse-1> <mouse-1> <down-mouse-1> <mouse-1> 
q <down-mouse-1> <mouse-1> <help-echo> <down-mouse-2> 
<mouse-2> <down-mouse-1> <mouse-1> M-x v m <return> 
<switch-frame> <down-mouse-1> <mouse-movement> <mouse-1> 
<down-mouse-1> <mouse-1> M-x r e p o SPC <down-mouse-2> 
<mouse-2>

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