reproducible emacs segmentation fault under cygwin and the good old days

[emacs user]

I already reported this once but havent heard anything about this.  Now, in 
the good old days, a reproducible bug report would ...  OK, better stop 
right here.   any suggestions?

I couldnt use the report-emacs-bug command as this results in an error 
message as well...  this is based on the most recent cvs gnu emacs compiled 
with gtk under cygwin.

so, first the seg fault:

/usr/local/emacs/src $ gdb emacs
GNU gdb 6.3.50_2004-12-28-cvs (cygwin-special)
Copyright 2004 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 "i686-pc-cygwin"...
DISPLAY = :0.0
TERM = dumb
Breakpoint 1 at 0x2009bb26: file emacs.c, line 456.
Breakpoint 2 at 0x20076728: file xterm.c, line 7797.
(gdb) run -q
Starting program: /usr/local/emacs/src/emacs.exe -q

Program received signal SIGSEGV, Segmentation fault.
0x7c809f62 in KERNEL32!IsBadWritePtr ()
  from /cygdrive/c/WINDOWS/system32/kernel32.dll
(gdb) where
#0  0x7c809f62 in KERNEL32!IsBadWritePtr ()
  from /cygdrive/c/WINDOWS/system32/kernel32.dll
#1  0x00000000 in ?? () from
(gdb) backtrace
#0  0x7c809f62 in KERNEL32!IsBadWritePtr ()
  from /cygdrive/c/WINDOWS/system32/kernel32.dll
#1  0x00000000 in ?? () from
(gdb) xbacktrace
Cannot access memory at address 0x1a
(gdb) finish
Run till exit from #0  0x7c809f62 in KERNEL32!IsBadWritePtr ()
  from /cygdrive/c/WINDOWS/system32/kernel32.dll
Warning:
Cannot insert breakpoint 0.
Error accessing memory address 0x0: Input/Output error.

(gdb)


and then the report emacs bug problem:

Debugger entered--Lisp error: (file-error "Opening output file" "no such 
file or directory" "/home/eli/#*mail*#82640JW#")
 write-region("" nil "/home/eli/#*mail*#82640JW#" nil silent nil excl)
 byte-code("ÅÆ	\"!ƒ\nP\fƒÇ\n!ˆ‚%ÈÉÊ\nÊËÊÌ&" 
[prefix temporary-file-directory file suffix dir-flag make-temp-name 
expand-file-name make-directory write-region "" nil silent excl] 8)
 make-temp-file("/home/eli/#*mail*#" nil "#")
 make-auto-save-file-name()
 auto-save-mode(t)
 mail(nil "address@hidden" "" nil nil nil nil)
 sendmail-user-agent-compose("address@hidden" "" nil nil nil nil 
nil)
 compose-mail("address@hidden" "")
 report-emacs-bug("" [97 105 108 1 134217788 19 7 22 22 up down down down 
down down down down down down down down down down down down down down down 
down down down down down down down down down down down down down down down 
down down down down down down down ...])
 call-interactively(report-emacs-bug)
 execute-extended-command(nil)
 call-interactively(execute-extended-command)

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