crash when trying to select region in elisp mode

[Joe Corneli]

I pressed C-SPC <right> and Emacs appeared to hang after "<right>"
was pressed.  Screen went blank, and the window wouldn't respond
to input.  I was running under gdb, here is the backtrace.

Please let me know if next time I should run some other debugging
command.  (Unfortunately this gdb process was killed, so this is all
the info you get on this crash; I just tried selecting the same region
with a fresh Emacs, and had no problems the second time).

(gdb) bt
#0  0x000418ac in try_window ()
#1  0x00040398 in redisplay_window ()
#2  0x0003ba3c in redisplay_window_1 ()
#3  0x001cfbd0 in internal_condition_case_1 ()
#4  0x0003aad4 in redisplay_internal ()
#5  0x0003812c in redisplay ()
#6  0x0011a7c4 in read_char ()
#7  0x00128d38 in read_key_sequence ()
#8  0x00116958 in command_loop_1 ()
#9  0x001cf9f4 in internal_condition_case ()
#10 0x001160e0 in command_loop_2 ()
#11 0x001cf1e0 in internal_catch ()
#12 0x00116048 in command_loop ()
#13 0x0011558c in recursive_edit_1 ()
#14 0x00115818 in Frecursive_edit ()
#15 0x0011350c in main ()
#16 0x0000218c in _start (argc=6, argv=0xbffffc44, envp=0xbffffc60) at 
/SourceCache/Csu/Csu-46/crt.c:267
#17 0x00002000 in start ()


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
/Users/arided/emacs/etc/DEBUG for instructions.


In GNU Emacs 22.0.50.22 (powerpc-apple-darwin7.9.0, X toolkit, Xaw3d scroll 
bars)
 of 2005-08-20 on hope-of-a-stone.local
X server distributor `The XFree86 Project, Inc', version 11.0.40500000
configured using `configure '--with-x' '--without-carbon' '--with-xpm' 
'--with-jpeg' '--with-tiff' '--with-gif' '--with-png' 'CFLAGS=-I/sw/include' 
'CPPFLAGS=-I/sw/include' 'LDFLAGS=-L/sw/lib''

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: nil
  locale-coding-system: nil
  default-enable-multibyte-characters: t

Major mode: Lisp Interaction

Minor modes in effect:
  display-time-mode: t
  mouse-wheel-mode: t
  auto-compression-mode: t
  global-font-lock-mode: t
  font-lock-mode: t
  unify-8859-on-encoding-mode: t
  utf-translate-cjk-mode: t
  column-number-mode: t
  line-number-mode: t
  transient-mark-mode: t

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

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