I am attaching the traceback of a python 2.4 crash.

The application I am developing executes many threads
and then has a "monitor" part that monitors certain
events. One event causes the application to shutdown.
On shutdown it notifies threads of a shutdown, and the
threads must cleanup and exit.

The traceback below occured on a shutdown. At the time
there was only one thread running.

I do not know how to investigate further. However given
pointers to do this I would be more than happy to
investigate and provide all information that could help
with this.

Some things I've observed:
1 - my application seems to be able to complete
successfully.
2 - it appears to be only after the app exits.
3 - it is not consistent. (too easy if it was!).
4 - more likely to occur the longer a
thread/application has run.
5 - does occur frequently enough to be a problem.

Once again let me know what other info I can provide,
or anything I can do to help.

Below is the traceback and some system/environment info.

Thanks.
---------------------------------------------------------------------------------
Error traceback:
-----------------
Error in atexit._run_exitfuncs:
Traceback (most recent call last):
  File "/usr/lib/python2.4/atexit.py", line 22, in
_run_exitfuncs
    func(*targs, **kargs)
  File "/usr/lib/python2.4/threading.py", line 636, in
__exitfunc
    self._Thread__delete()
  File "/usr/lib/python2.4/threading.py", line 522, in
__delete
    del _active[_get_ident()]
KeyError: 16384
Error in sys.exitfunc:
Traceback (most recent call last):
  File "/usr/lib/python2.4/atexit.py", line 22, in
_run_exitfuncs
    func(*targs, **kargs)
  File "/usr/lib/python2.4/threading.py", line 636, in
__exitfunc
    self._Thread__delete()
  File "/usr/lib/python2.4/threading.py", line 522, in
__delete
    del _active[_get_ident()]
KeyError: 16384

Software environment:
-----------------------
*********************************************
***         SYSTEM INFORMATION            ***
***     (Tue Mar  8 17:38:34 EST 2005)    ***
*********************************************
   Machine type       : i686
   Operating system   : Linux
   Kernel version     : 2.4.29
   Linux Distribution : Slackware 10.1.0
*********************************************
Python   2.4 (#1, Jan  1 2005, 21:33:55) [GCC 3.3.4] on
linux2
Gnu make   3.80
util-linux   2.12p
modutils   2.4.27
e2fsprogs   tune2fs
Linux C Library   2.3.4
Dynamic linker (ldd)   2.3.4
Linux C++ Library   5.0.6
Procps   3.2.3
Net-tools  1.60
Kbd   1.12
Sh-utils 5.2.1
*********************************************
Modules Loaded:
	nfs
	lockd
	sunrpc
	ppp_deflate
	zlib_inflate
	zlib_deflate
	bsd_comp
	ppp_async
	ppp_generic
	slhc
	emu10k1
	ac97_codec
	soundcore
	xfs
	ne2k-pci
	8390
	crc32
*********************************************
gcc version 3.3.4
Reading specs from
/usr/lib/gcc-lib/i486-slackware-linux/3.3.4/specs
Configured with: ../gcc-3.3.4/configure --prefix=/usr
--enable-shared --enable-threads=posix
--enable-__cxa_atexit --disable-checking --with-gnu-ld
--verbose --target=i486-slackware-linux
--host=i486-slackware-linux
Thread model: posix
*********************************************