large value for tool-bar-button-margin crashes Emacs

[Miguel V. S. Frasson]

Hi

Setting tool-bar-button-margin to a sufficiently large value chashes
Emacs.  There are two things going on: the horizontal and the vertical
measures of the frame.

If toolbar does not fit in the vertical area of the frame (but a
single button fits in the horizontal space) then, the text window
becomes 1 line high, and no tool-bar is displayed, only the white top
border.  Maybe if the tool-bar does not fit, Emacs should display no
toolbar, leaving space for the text window.

The following situations happens when calling Emacs with the following
lines:

Doesn't crash
emacs -Q --xrm "emacs.geometry:80x25" --eval "(setq tool-bar-button-margin 365)"

Crashes
emacs -Q --xrm "emacs.geometry:80x25" --eval "(setq tool-bar-button-margin 366)"

Does not crash again
emacs -Q --xrm "emacs.geometry:81x25" --eval "(setq tool-bar-button-margin 366)"

Does not crash
emacs -Q --xrm "emacs.geometry:81x25" --eval "(setq tool-bar-button-margin 369)"

Crashes (increasing 1 in the button margin, increases the button size
in 2 pixels)
emacs -Q --xrm "emacs.geometry:81x25" --eval "(setq tool-bar-button-margin 370)"

(if one cannot reproduce with the values provided, for sure with other
values, or use my emacs settings in X resources
! GNU Emacs
emacs*font:     -misc-fixed-medium-*-*-*-15-*-*-*-*-*-*-*
emacs.pane.menubar.font: -misc-fixed-bold-r-normal-*-13-*-*-*-*-*-*-*
emacs.menu*.font:        -misc-fixed-bold-r-normal-*-13-*-*-*-*-*-*-*
emacs.dialog*.font:      -misc-fixed-bold-r-normal-*-13-*-*-*-*-*-*-*)

Miguel.

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/22.0.50/etc/DEBUG for instructions.


In GNU Emacs 22.0.50.2 (i686-pc-linux-gnu, X toolkit, Xaw3d scroll bars)
of 2006-05-12 on miguel
X server distributor `The X.Org Foundation', version 11.0.60802000
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: Lisp Interaction

Minor modes in effect:
 tooltip-mode: t
 auto-compression-mode: t
 tool-bar-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
 line-number-mode: t

Recent input:
M-x r e p o r t <tab> <return>

Recent messages:
(emacs -Q)
For information about the GNU Project and its goals, type C-h C-p.
Loading emacsbug...
Loading regexp-opt...done
Loading emacsbug...done

--
Miguel Vinicius Santini Frasson
address@hidden