New submission from [EMAIL PROTECTED]:
Python-2.5.1 will be crashed when i use _ssl module in multi-threads
environment in linux. the sample code looks as below(A https server is
running on host which ip is "192.168.5.151" and many certificates and
keys in PEM format are in the directory "./cert". These certificates
and keys are ok because i can use them in a web browser like IE/
Firefox.):
------------------------------------------------------------------------
------
#! /home/duxg/Download/soft/Python-2.5.1/python
#
# filename: test.py
#
'''This script simulates the behaviors of a https client.'''
import threading
import httplib
class HTTPSClient(threading.Thread):
def __init__(self, server_ip, url, cert_file, key_file):
threading.Thread.__init__(self)
# get run parameters
self.server_ip = server_ip
self.url = url
self.cert_file = cert_file
self.key_file = key_file
def get(self):
# make headers
headers = {'User-Agent': 'https_test/[EMAIL PROTECTED]',
'Connection': 'close'
}
# use httplib
conn = httplib.HTTPSConnection('%s' % self.server_ip, \
key_file = self.key_file, \
cert_file = self.cert_file)
# http get
conn.request('GET', self.url, headers = headers)
resp = conn.getresponse()
# check response
if resp.status != 200:
print 'get(%s) failed/status=%d.' % (self.url, resp.status)
return False
return True
def run(self):
while True:
self.get()
def main():
worker_number = 100
threading.stack_size(512 * 1024)
worker = []
for i in range(worker_number):
# create worker thread
worker.append(HTTPSClient('192.168.5.151', '/test.html', \
'./cert/testu%d.cert' % i, \
'./cert/testu%d.key' % i))
for w in worker:
# go
w.start()
for w in worker:
# wait
w.join()
main()
------------------------------------------------------------------------
------
This code will be produced a lot of exceptions and finally it will
cause Python crashed.
------------------------------------------------------------------------
------
Exception in thread Thread-19:
Traceback (most recent call last):
File "/home/duxg/Download/soft/Python-2.5.1/Lib/threading.py", line
460, in __bootstrap
self.run()
File "./test.py", line 39, in run
self.get()
File "./test.py", line 29, in get
conn.request('GET', self.url, headers = headers)
File "/home/duxg/Download/soft/Python-2.5.1/Lib/httplib.py", line
862, in request
self._send_request(method, url, body, headers)
File "/home/duxg/Download/soft/Python-2.5.1/Lib/httplib.py", line
885, in _send_request
self.endheaders()
File "/home/duxg/Download/soft/Python-2.5.1/Lib/httplib.py", line
856, in endheaders
self._send_output()
File "/home/duxg/Download/soft/Python-2.5.1/Lib/httplib.py", line
728, in _send_output
self.send(msg)
File "/home/duxg/Download/soft/Python-2.5.1/Lib/httplib.py", line
695, in send
self.connect()
File "/home/duxg/Download/soft/Python-2.5.1/Lib/httplib.py", line
1131, in connect
ssl = socket.ssl(sock, self.key_file, self.cert_file)
File "/home/duxg/Download/soft/Python-2.5.1/Lib/socket.py", line 74,
in ssl
return _realssl(sock, keyfile, certfile)
sslerror: SSL_CTX_use_certificate_chain_file error
...
*** glibc detected *** /home/duxg/Download/soft/Python-2.5.1/python:
double free or corruption (!prev): 0x0a2b71a0 ***
======= Backtrace: =========
/lib/libc.so.6[0x887f41]
/lib/libc.so.6(cfree+0x90)[0x88b580]
/lib/libcrypto.so.6(CRYPTO_free+0x3a)[0x14f46a]
/lib/libcrypto.so.6(ERR_clear_error+0x73)[0x1a4d13]
/lib/libssl.so.6(SSL_CTX_use_certificate_chain_file+0x227)[0x358e47]
/home/duxg/Download/soft/Python-2.5.1/build/lib.linux-i686-2.5/
_ssl.so[0xb9eb9e]
/home/duxg/Download/soft/Python-2.5.1/
python(PyEval_EvalFrameEx+0x5d2c)[0x80c539c]
/home/duxg/Download/soft/Python-2.5.1/
python(PyEval_EvalCodeEx+0x775)[0x80c65d5]
/home/duxg/Download/soft/Python-2.5.1/
python(PyEval_EvalFrameEx+0x5419)[0x80c4a89]
/home/duxg/Download/soft/Python-2.5.1/
python(PyEval_EvalFrameEx+0x6155)[0x80c57c5]
/home/duxg/Download/soft/Python-2.5.1/
python(PyEval_EvalFrameEx+0x6155)[0x80c57c5]
/home/duxg/Download/soft/Python-2.5.1/
python(PyEval_EvalFrameEx+0x6155)[0x80c57c5]
/home/duxg/Download/soft/Python-2.5.1/
python(PyEval_EvalFrameEx+0x6155)[0x80c57c5]
/home/duxg/Download/soft/Python-2.5.1/
python(PyEval_EvalFrameEx+0x6155)[0x80c57c5]
/home/duxg/Download/soft/Python-2.5.1/
python(PyEval_EvalCodeEx+0x775)[0x80c65d5]
/home/duxg/Download/soft/Python-2.5.1/
python(PyEval_EvalFrameEx+0x5419)[0x80c4a89]
/home/duxg/Download/soft/Python-2.5.1/
python(PyEval_EvalFrameEx+0x6155)[0x80c57c5]
/home/duxg/Download/soft/Python-2.5.1/
python(PyEval_EvalFrameEx+0x6155)[0x80c57c5]
/home/duxg/Download/soft/Python-2.5.1/
python(PyEval_EvalCodeEx+0x775)[0x80c65d5]
/home/duxg/Download/soft/Python-2.5.1/python[0x810d6f1]
/home/duxg/Download/soft/Python-2.5.1/
python(PyObject_Call+0x27)[0x805a277]
/home/duxg/Download/soft/Python-2.5.1/python[0x80603a7]
/home/duxg/Download/soft/Python-2.5.1/
python(PyObject_Call+0x27)[0x805a277]
/home/duxg/Download/soft/Python-2.5.1/
python(PyEval_CallObjectWithKeywords+0x6c)[0x80be7cc]
/home/duxg/Download/soft/Python-2.5.1/python[0x80f01e8]
/lib/libpthread.so.0[0xc292fb]
/lib/libc.so.6(clone+0x5e)[0x8f093e]
======= Memory map: ========
00110000-00113000 r-xp 00000000 08:05 2417874 /home/duxg/Download/
soft/Python-2.5.1/build/lib.linux-i686-2.5/time.so
00113000-00115000 rwxp 00002000 08:05 2417874 /home/duxg/Download/
soft/Python-2.5.1/build/lib.linux-i686-2.5/time.so
00115000-00119000 r-xp 00000000 08:05 2417882 /home/duxg/Download/
soft/Python-2.5.1/build/lib.linux-i686-2.5/collections.so
00119000-0011a000 rwxp 00004000 08:05 2417882 /home/duxg/Download/
soft/Python-2.5.1/build/lib.linux-i686-2.5/collections.so
0011a000-0011c000 r-xp 00000000 08:05 2417878 /home/duxg/Download/
soft/Python-2.5.1/build/lib.linux-i686-2.5/_random.so
0011c000-0011d000 rwxp 00002000 08:05 2417878 /home/duxg/Download/
soft/Python-2.5.1/build/lib.linux-i686-2.5/_random.so
0011d000-00239000 r-xp 00000000 08:03 491746 /lib/
libcrypto.so.0.9.8b
00239000-0024b000 rwxp 0011c000 08:03 491746 /lib/
libcrypto.so.0.9.8b
0024b000-0024f000 rwxp 0024b000 00:00 0
0024f000-0027b000 r-xp 00000000 08:09 623501 /usr/lib/
libgssapi_krb5.so.2.2
0027b000-0027c000 rwxp 0002c000 08:09 623501 /usr/lib/
libgssapi_krb5.so.2.2
0027c000-0027e000 r-xp 00000000 08:03 491630 /lib/libkeyutils-1.2.so
0027e000-0027f000 rwxp 00001000 08:03 491630 /lib/libkeyutils-1.2.so
00287000-00288000 r-xp 00287000 00:00 0 [vdso]
00288000-00317000 r-xp 00000000 08:09 623515 /usr/lib/libkrb5.so.3.3
00317000-00319000 rwxp 0008f000 08:09 623515 /usr/lib/libkrb5.so.3.3
00319000-00324000 r-xp 00000000 08:03 491522 /lib/libgcc_s-4.1.2-
20070503.so.1
00324000-00325000 rwxp 0000a000 08:03 491522 /lib/libgcc_s-4.1.2-
20070503.so.1
00328000-00369000 r-xp 00000000 08:03 491748 /lib/libssl.so.0.9.8b
00369000-0036d000 rwxp 00040000 08:03 491748 /lib/libssl.so.0.9.8b
003c8000-003ca000 r-xp 00000000 08:03 491577 /lib/libutil-2.6.so
003ca000-003cb000 r-xp 00001000 08:03 491577 /lib/libutil-2.6.so
003cb000-003cc000 rwxp 00002000 08:03 491577 /lib/libutil-2.6.so
00433000-00436000 r-xp 00000000 08:03 491551 /lib/libdl-2.6.so
00436000-00437000 r-xp 00002000 08:03 491551 /lib/libdl-2.6.so
00437000-00438000 rwxp 00003000 08:03 491551 /lib/libdl-2.6.so
00478000-0049f000 r-xp 00000000 08:03 491553 /lib/libm-2.6.so
0049f000-004a0000 r-xp 00026000 08:03 491553 /lib/libm-2.6.so
004a0000-004a1000 rwxp 00027000 08:03 491553 /lib/libm-2.6.so
004f4000-00506000 r-xp 00000000 08:03 491595 /lib/libz.so.1.2.3
00506000-00507000 rwxp 00011000 08:03 491595 /lib/libz.so.1.2.3
00581000-00591000 r-xp 00000000 08:03 491571 /lib/libresolv-2.6.so
00591000-00592000 r-xp 0000f000 08:03 491571 /lib/libresolv-2.6.so
00592000-00593000 rwxp 00010000 08:03 491571 /lib/libresolv-2.6.so
00593000-00595000 rwxp 00593000 00:00 0
005d7000-005d9000 r-xp 00000000 08:05 2417903 /home/duxg/Download/
soft/Python-2.5.1/build/lib.linux-i686-2.5/fcntl.so
005d9000-005da000 rwxp 00002000 08:05 2417903 /home/duxg/Download/
soft/Python-2.5.1/build/lib.linux-i686-2.5/fcntl.so
00651000-00654000 r-xp 00000000 08:05 2417915 /home/duxg/Download/
soft/Python-2.5.1/build/lib.linux-i686-2.5/cStringIO.so
00654000-00655000 rwxp 00003000 08:05 2417915 /home/duxg/Download/
soft/Python-2.5.1/build/lib.linux-i686-2.5/cStringIO.so
00734000-0073d000 r-xp 00000000 08:05 2417935 /home/duxg/Download/
soft/Python-2.5.1/build/lib.linux-i686-2.5/_socket.so
0073d000-00740000 rwxp 00009000 08:05 2417935 /home/duxg/Download/
soft/Python-2.5.1/build/lib.linux-i686-2.5/_socket.so
00820000-0096e000 r-xp 00000000 08:03 491545 /lib/libc-2.6.so
0096e000-00970000 r-xp 0014e000 08:03 491545 /lib/libc-2.6.so
00970000-00971000 rwxp 00150000 08:03 491545 /lib/libc-2.6.so
00971000-00974000 rwxp 00971000 00:00 0
009a7000-009a9000 r-xp 00000000 08:05 2417870 /home/duxg/Download/
soft/Python-2.5.1/build/lib.linux-i686-2.5/math.so
009a9000-009aa000 rwxp 00002000 08:05 2417870 /home/duxg/Download/
soft/Python-2.5.1/build/lib.linux-i686-2.5/math.so
00b11000-0Aborted (core dumped)
------------------------------------------------------------------------
------
I think the problem is in that the _ssl module does not correctly
initialize the OpenSSL Library, so i make a patch to fix it. now it
seems worked well.
----------
components: None
files: _ssl.c.patch
messages: 61880
nosy: [EMAIL PROTECTED]
severity: normal
status: open
title: Python(2.5.1) will be crashed when i use _ssl module in multi-threads
environment in linux.
type: crash
versions: Python 2.5
Added file: http://bugs.python.org/file9335/_ssl.c.patch
__________________________________
Tracker <[EMAIL PROTECTED]>
<http://bugs.python.org/issue1978>
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