emacs crash

["Donald Zoch" <donald.zoch@amd.com>]

We think we've experienced a bug in emacs
It dies with a segmentation fault. 

GNU Emacs 21.4.1
Copyright (C) 2002 Free Software Foundation, Inc.
GNU Emacs comes with ABSOLUTELY NO WARRANTY.
You may redistribute copies of Emacs
under the terms of the GNU General Public License.
For more information about these matters, see the file named COPYING.

Backtrace:

#0  0x40294fd1 in kill () from /lib/tls/libc.so.6
#1  0x080decb2 in fatal_error_signal (sig=26106) at emacs.c:354
#2  <signal handler called>
#3  0x0804fd50 in increment_row_positions (row=0x85fdd10, delta=1, delta_bytes=4) at dispnew.c:1188
#4  0x0804fdef in increment_matrix_positions (matrix=0x84df150, start=65, end=65, delta=1, 
    delta_bytes=1) at dispnew.c:927
#5  0x0806c3eb in try_window_id (w=0x8498798) at xdisp.c:11883
#6  0x080711a0 in redisplay_window (window=1212778392, just_this_one_p=1) at xdisp.c:10260
#7  0x080736b1 in redisplay_internal (preserve_echo_area=4) at xdisp.c:8910
#8  0x080e8ceb in read_char (commandflag=1, nmaps=2, maps=0xffffaa10, prev_event=405378092, 
    used_mouse_menu=0xffffaa68) at keyboard.c:2299
#9  0x080ea551 in read_key_sequence (keybuf=0xffffaba0, bufsize=30, prompt=405378092, 
    dont_downcase_last=0, can_return_switch_frame=1, fix_current_buffer=1) at keyboard.c:8209
#10 0x080ec3eb in command_loop_1 () at keyboard.c:1451
#11 0x0813d39a in internal_condition_case (bfun=0x80ec1e0 <command_loop_1>, handlers=405474436, 
    hfun=0x80e5440 <cmd_error>) at eval.c:1267
#12 0x080e0d5e in command_loop_2 () at keyboard.c:1245
#13 0x0813d2a9 in internal_catch (tag=4, func=0x80e0d30 <command_loop_2>, arg=405378092)
    at eval.c:1030
#14 0x080e0b2e in command_loop () at keyboard.c:1224
#15 0x080e0bd9 in recursive_edit_1 () at keyboard.c:950
#16 0x080e0d0e in Frecursive_edit () at keyboard.c:1006
#17 0x080dff09 in main (argc=2, argv=0xffffb254, envp=0xffffb260) at emacs.c:1547


Detail from our user on what he was doing when it crashed:

Here's the detail that I have:
Similar to the last failure I had 2 files open in buffers (size:401204B
& 995B)
with the emacs panel split in 2 vertically and a separate buffer in each.
The 401204B file was in the left pane, 995B file in the right pane.
I had just copy/pasted the 995B into the 2nd file which hadn't yet been
saved.
I left clicked the mouse to place the cursor in the left window
and the session disappeared.

I think that this time was slightly different than the last time it failed.
Last time I wasn't doing copy/paste, but was typing text,
I left clicked and then when I typed the 1st character the session
disappeared.
I think that I didn't hit a character this time.


Thanks for any help you can provide.

Donald
--
Donald Zoch                    
donald.zoch@amd.com