bug#18889: 24.4.51; NS built emacs may crash when window is removed

[Jan Djärv]

Hi.

Internally NS stores Lisp_Objects that aren't GC:ed.
If used at the wrong time, Emacs crashes.
This includes EmacsScroller and some (unused) parts of ns_output.

     Jan D.



In GNU Emacs 24.4.51.1 (x86_64-apple-darwin14.0.0, NS apple-appkit-1343.14)
of 2014-10-26 on zeplin
Repository revision: 117624 eliz@gnu.org-20141024091301-xb9czgkfxbpgw3zz
Windowing system distributor `Apple', version 10.3.1343
Configured using:
`configure --without-x --with-ns'

Important settings:
  value of $LC_COLLATE: C
  value of $LANG: sv_SE.UTF-8
  locale-coding-system: utf-8-unix

Major mode: Lisp Interaction

Minor modes in effect:
  icomplete-mode: t
  desktop-save-mode: t
  delete-selection-mode: t
  display-time-mode: t
  tooltip-mode: t
  electric-indent-mode: t
  mouse-wheel-mode: t
  tool-bar-mode: t
  menu-bar-mode: t
  file-name-shadow-mode: t
  global-font-lock-mode: t
  font-lock-mode: t
  blink-cursor-mode: t
  auto-composition-mode: t
  auto-encryption-mode: t
  auto-compression-mode: t
  line-number-mode: t
  transient-mark-mode: t

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

Recent messages:
Loading /Users/jhd/lib/elisp/BAK-file.el (source)...done
Loading /Users/jhd/lib/elisp/ccsetup.el (source)...done
Loading desktop...done
Loading icomplete...done
No desktop file.
For information about GNU Emacs and the GNU system, type C-h C-a.

Load-path shadows:
None found.

Features:
(shadow sort gnus-util mail-extr emacsbug message format-spec rfc822 mml
mml-sec mm-decode mm-bodies mm-encode mail-parse rfc2231 mailabbrev
gmm-utils mailheader sendmail rfc2047 rfc2045 ietf-drums mm-util
mail-prsvr mail-utils mule-util magit-autoloads package epg-config
icomplete desktop frameset cus-start cus-load msb delsel advice help-fns
cc-langs cl-loaddefs cl-lib cc-mode cc-fonts easymenu cc-guess cc-menus
cc-cmds cc-styles cc-align cc-engine cc-vars cc-defs time time-date
tooltip electric uniquify ediff-hook vc-hooks lisp-float-type mwheel
ns-win tool-bar dnd fontset image regexp-opt fringe tabulated-list
newcomment lisp-mode prog-mode register page menu-bar rfn-eshadow timer
select scroll-bar mouse jit-lock font-lock syntax facemenu font-core
frame cham georgian utf-8-lang misc-lang vietnamese tibetan thai
tai-viet lao korean japanese hebrew greek romanian slovak czech european
ethiopic indian cyrillic chinese case-table epa-hook jka-cmpr-hook help
simple abbrev minibuffer nadvice loaddefs button faces cus-face macroexp
files text-properties overlay sha1 md5 base64 format env code-pages mule
custom widget hashtable-print-readable backquote make-network-process
cocoa ns multi-tty emacs)

Memory information:
((conses 16 117811 5335)
(symbols 48 21403 0)
(miscs 40 43 145)
(strings 32 21705 4242)
(string-bytes 1 691767)
(vectors 16 12570)
(vector-slots 8 408587 4208)
(floats 8 58 243)
(intervals 56 189 0)
(buffers 960 11))