Issue 1159425: 2.4 crashes when try to exit app and mulitple threads active (original) (raw)
Created on 2005-03-08 23:14 by hugendian, last changed 2022-04-11 14:56 by admin. This issue is now closed.
Messages (5)
Author: hugendian (hugendian)
Date: 2005-03-08 23:14
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
Author: Facundo Batista (facundobatista) * 
Date: 2008-06-21 20:45
Does this still happen with newer Python versions? Could you provide an example code?
Thanks!
Author: Christopher Nelson (nadiasvertex)
Date: 2008-09-03 16:09
I also experience this on a regular basis. I can't show you the code due to IP restrictions, but it happens almost 100% of the time in python 2.4.4 on win2k8, and frequently in win2k3.
Error in atexit._run_exitfuncs: Traceback (most recent call last): File "C:\Program Files\Opsware\agent\lcpython15\lib\atexit.py", line 24, in _r un_exitfuncs func(*targs, **kargs) File "C:\Program Files\Opsware\agent\lcpython15\lib\threading.py", line 638, i n __exitfunc self._Thread__delete() File "C:\Program Files\Opsware\agent\lcpython15\lib\threading.py", line 522, i n __delete del _active[_get_ident()] KeyError: 2540 Error in sys.exitfunc: Traceback (most recent call last): File "C:\Program Files\Opsware\agent\lcpython15\lib\atexit.py", line 24, in _r un_exitfuncs func(*targs, **kargs) File "C:\Program Files\Opsware\agent\lcpython15\lib\threading.py", line 638, i n __exitfunc self._Thread__delete() File "C:\Program Files\Opsware\agent\lcpython15\lib\threading.py", line 522, i n __delete del _active[_get_ident()] KeyError: 2540
Author: Daniel Diniz (ajaksu2) * 
Date: 2009-02-15 23:35
A sample script that reproduces this behavior in 2.6 is needed if this one is to have a chance of being fixed.
Author: Amaury Forgeot d'Arc (amaury.forgeotdarc) *
Date: 2009-02-17 17:20
the is very similar (same traceback on another platform). The problem is still valid, and the discussion seems more advanced there.
History
Date
User
Action
Args
2022-04-11 14:56:10
admin
set
github: 41670
2009-02-17 17:20:49
amaury.forgeotdarc
set
superseder: KeyError at exit after 'import threading' in other thread
2009-02-17 17:20:32
amaury.forgeotdarc
set
status: open -> closed
resolution: duplicate
messages: +
nosy: + amaury.forgeotdarc
2009-02-15 23:35:56
ajaksu2
set
type: crash
stage: test needed
messages: +
nosy: + ajaksu2
versions: + Python 2.6, - Python 2.4
2008-09-03 16:09:30
nadiasvertex
set
nosy: + nadiasvertex
messages: +
2008-06-21 20:45:57
facundobatista
set
nosy: + facundobatista
messages: +
2005-03-08 23:14:55
hugendian
create