reproducible emacs crash

[ET]

Using the preview package, with a complex .emacs file, I have a
reproducible crash.  this is gtk gnu emacs, from most recent CVS
version.  I ran it under gdb and the backtrace follows.  I will be
glad to help by printing additional information from the traceback,
given accurate instructions from someone knowledgeable (not me...).
ET

/usr/local/emacs/src% gdb emacs
GNU gdb Red Hat Linux (5.3post-0.20021129.18rh)
Copyright 2003 Free Software Foundation, Inc.
GDB is free software, covered by the GNU General Public License, and you are
welcome to change it and/or distribute copies of it under certain conditions.
Type "show copying" to see the conditions.
There is absolutely no warranty for GDB.  Type "show warranty" for details.
This GDB was configured as "i386-redhat-linux-gnu"...
DISPLAY = :0.0
TERM = xterm
Breakpoint 1 at 0x8109a9e: file emacs.c, line 413.
Breakpoint 2 at 0x80ec88c: file xterm.c, line 7830.
(gdb) run
Starting program: /usr/local/emacs/src/emacs -geometry 80x40+0+0
 
Breakpoint 1, abort () at emacs.c:413
413       kill (getpid (), SIGABRT);
(gdb) xbacktrace
(gdb) xbacktrace
(gdb) xbacktrace
(gdb) where
#0  abort () at emacs.c:413
#1  0x080a2a62 in find_first_unchanged_at_end_row (w=0xbfffdbf8,
    delta=0xbfffdbf8, delta_bytes=0xbfffdbfc) at xdisp.c:12564
#2  0x080a30e4 in try_window_id (w=0x8982af0) at xdisp.c:12989
#3  0x080a0d9d in redisplay_window (window=1217932016, just_this_one_p=0)
    at xdisp.c:11611
#4  0x0809d635 in redisplay_window_0 (window=1217932016) at xdisp.c:10410
#5  0x08163ec4 in internal_condition_case_1 (
    bfun=0x809d608 <redisplay_window_0>, arg=1217932016, handlers=1479614596,
    hfun=0x809d5ec <redisplay_window_error>) at eval.c:1374
#6  0x0809d5ea in redisplay_windows (window=13539) at xdisp.c:10389
#7  0x0809c865 in redisplay_internal (preserve_echo_area=0) at xdisp.c:9978
#8  0x0809bc35 in redisplay () at xdisp.c:9405
#9  0x0810f4d1 in read_char (commandflag=1, nmaps=6, maps=0xbfffe9d0,
    prev_event=405664572, used_mouse_menu=0xbfffea18) at keyboard.c:2498
#10 0x081157ed in read_key_sequence (keybuf=0xbfffeb40, bufsize=30,
    prompt=405664572, dont_downcase_last=0, can_return_switch_frame=1,
    fix_current_buffer=1) at keyboard.c:8723
#11 0x0810c50b in command_loop_1 () at keyboard.c:1507
#12 0x08163dca in internal_condition_case (bfun=0x810c38c <command_loop_1>,
    handlers=405761204, hfun=0x810bf7c <cmd_error>) at eval.c:1333
#13 0x0810c266 in command_loop_2 () at keyboard.c:1295
#14 0x08163969 in internal_catch (tag=405664512,
---Type <return> to continue, or q <return> to quit---
    func=0x810c248 <command_loop_2>, arg=405664572) at eval.c:1094
#15 0x0810c21c in command_loop () at keyboard.c:1274
#16 0x0810bd58 in recursive_edit_1 () at keyboard.c:990
#17 0x0810be68 in Frecursive_edit () at keyboard.c:1046
#18 0x0810a79f in main (argc=3, argv=0xbffff114) at emacs.c:1660
#19 0x420156a4 in __libc_start_main () from /lib/tls/libc.so.6
(gdb)
(gdb) xbacktrace
(gdb) xbacktrace
(gdb) up
#1  0x080a2a62 in find_first_unchanged_at_end_row (w=0xbfffdbf8,
    delta=0xbfffdbf8, delta_bytes=0xbfffdbfc) at xdisp.c:12564
12564       abort ();
(gdb) xbacktrace
(gdb)




In GNU Emacs 21.3.50.59 (i686-pc-linux-gnu)
 of 2003-05-20 on beach
configured using `configure '--with-gtk''

Important settings:
  value of $LC_ALL: nil
  value of $LC_COLLATE: C
  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
  locale-coding-system: iso-latin-1
  default-enable-multibyte-characters: t