Hard bug caused by window management code?

[Dmitry Antipov <dmantipov@yandex.ru>]

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I'm trying to push some changes to window management code and now using a kind of
simple automated test stuff (attached), mostly to check whether the code doesn't
crash or trigger eassert. Results are totally unexpected - even with 24.3, running:

emacs -Q -l window-test.el -f window-test

causes 2.7G RSS and following OOM killer invocation for the Emacs process.

Can someone run this stuff and see what happens? (On MS-Windows or OSX, you
might want to look for test files somewhere else rather than in /etc).

Dmitry

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;; Window random action test.

(defun random-entry (entries)
  (let ((size (length entries)))
    (if (= 1 size) (car entries)
      (nth (abs (% (random) (length entries))) entries))))

(defun window-test ()
  (interactive)
  (let ((conf (current-window-configuration))
	(file-list (directory-files "/etc" t "\\.conf$")))
    (while t
      (let ((action (abs (% (random) 11))))
	(cond ((zerop action)
	       (and (< 16 (window-height)) (split-window-vertically)))
	      ((= 1 action)
	       (and (< 16 (window-width)) (split-window-horizontally)))
	      ((= 2 action)
	       (and (< 1 (count-windows)) (delete-window)))
	      ((= 3 action)
	       (balance-windows))
	      ((= 4 action)
	       (delete-other-windows))
	      ((= 5 action)
	       (select-window (random-entry (window-list))))
	      ((= 6 action)
	       (let ((file (random-entry file-list)))
		 (and (file-readable-p file) (find-file file))))
	      ((= 7 action)
	       (kill-buffer))
	      ((= 8 action)
	       (setq conf (current-window-configuration)))
	      ((= 9 action)
	       (set-window-configuration conf))
	      ((= 10 action)
	       (mapcar 'kill-buffer (buffer-list))))
	(sit-for 0.2)))))