bug#726: 23.0.60; OSX: Complete OS crash

[Markus Triska]

Let open7.el consist of the form:

   (let ((n 0))
     (while t
       (setq n (1+ n))
       (message "iteration: %s" n)
       (delete-process (start-process "bc" nil "bc"))))

When I do:

   $ emacs -Q --script open7.el

The whole OS crashes within about 500 iterations, and a gray box is
displayed stating that I must restart the computer. A shell script
that continuously starts and kills bc runs for long without problem:

   while true
   do
       bc &
       killall -9 bc
   done


In GNU Emacs 23.0.60.1 (i386-apple-darwin8.11.1, GTK+ Version 2.12.9)
 of 2008-08-15 on mt-computer.local
Windowing system distributor `The XFree86 Project, Inc', version 11.0.40400000
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.UTF-8
  value of $XMODIFIERS: nil
  locale-coding-system: nil
  default-enable-multibyte-characters: t