[issue16660] Segmentation fault when importing hashlib
ashwani added the comment:
Ok , It did not crash when I recompiled with --with-pydebug.
I observed crash when I was working with the urllib.request.
It was crashing when I imported urllib.request. I drill down the code of
urllib.request and found that it was crashing because of hashlib import.
Now, it is not crashing when I import hashlib and urllib.request.
But urllib.request.urlopen fails to open a site. It does open few other sites.
Now this might be completely different issue.
I think we first need to find why it is not crashing after the recompilation.
Following is comparison of urlopen on the same machine using two different
python versions.
ir[40] [~/Python-3.3.0/]$ python3
Python 3.3.0 (default, Dec 12 2012, 17:26:56)
[GCC 4.4.6 20110731 (Red Hat 4.4.6-3)] on linux
Type help, copyright, credits or license for more information.
import hashlib
[71516 refs]
import urllib
[71550 refs]
import urllib.request
[123410 refs]
u = urllib.request.urlopen('http://en.wikipedia.org/wiki/Wikipedia')
]Traceback (most recent call last):
File stdin, line 1, in module
File /usa/arao/Python-3.3.0/lib/python3.3/urllib/request.py, line 160, in
urlopen
return opener.open(url, data, timeout)
File /usa/arao/Python-3.3.0/lib/python3.3/urllib/request.py, line 479, in
open
response = meth(req, response)
File /usa/arao/Python-3.3.0/lib/python3.3/urllib/request.py, line 591, in
http_response
'http', request, response, code, msg, hdrs)
File /usa/arao/Python-3.3.0/lib/python3.3/urllib/request.py, line 517, in
error
return self._call_chain(*args)
File /usa/arao/Python-3.3.0/lib/python3.3/urllib/request.py, line 451, in
_call_chain
result = func(*args)
File /usa/arao/Python-3.3.0/lib/python3.3/urllib/request.py, line 599, in
http_error_default
raise HTTPError(req.full_url, code, msg, hdrs, fp)
urllib.error.HTTPError: HTTP Error 403: Forbidden
[126943 refs]
u = urllib.request.urlopen('http://mit.edu/')
[127082 refs]
len(u.read())
13857
[127068 refs]
It does open some other sites.
r[37] [~/Python-3.3.0/]$ python
Python 2.6.6 (r266:84292, Dec 7 2011, 20:48:22)
[GCC 4.4.6 20110731 (Red Hat 4.4.6-3)] on linux2
Type help, copyright, credits or license for more information.
import urllib
u = urllib.urlopen('http://en.wikipedia.org/wiki/Wikipedia')
len(u.read())
3000
import hashlib
Thanks,
Ashwin
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[issue16660] Segmentation fault when importing hashlib
Gregory P. Smith added the comment: given the behavior you are seeing, I'm not inclined to trust your computer or however it is configured. I do not believe this is a Python issue. 3.3 works fine on RHEL 6 so it should work fine on CentOS 6. http://buildbot.python.org/all/builders/x86%20RHEL%206%203.3 next steps as far as debugging the crash goes still stand: run python under gdb and get the C stacktrace from the crash. -- resolution: - invalid status: open - closed ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue16660 ___ ___ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue16660] Segmentation fault when importing hashlib
New submission from ashwani: Hello, I did a local installation of python 3.3.0 on my organization's CentOS machine. We also have Python 2.6.6 installed for every users on this machine. Python 3.3.0 crashes when I import the hash lib. Following is snapshot of the crash. ir[63] [~/]$ python3 -X faulthandler Python 3.3.0 (default, Dec 9 2012, 20:13:58) [GCC 4.4.6 20110731 (Red Hat 4.4.6-3)] on linux Type help, copyright, credits or license for more information. import hashlib Fatal Python error: Segmentation fault Current thread 0x7f0362784700: File /usa/arao/Python-3.3.0/lib/python3.3/hashlib.py, line 99 in __get_openssl_constructor File /usa/arao/Python-3.3.0/lib/python3.3/hashlib.py, line 141 in module File frozen importlib._bootstrap, line 313 in _call_with_frames_removed File frozen importlib._bootstrap, line 869 in _load_module File frozen importlib._bootstrap, line 562 in module_for_loader_wrapper File frozen importlib._bootstrap, line 1004 in load_module File frozen importlib._bootstrap, line 1023 in load_module File frozen importlib._bootstrap, line 586 in _check_name_wrapper File frozen importlib._bootstrap, line 1525 in _find_and_load_unlocked File frozen importlib._bootstrap, line 1558 in _find_and_load File stdin, line 1 in module Segmentation fault Can someone help me on this? Thanks, Ashwin -- components: Library (Lib) messages: 177317 nosy: nixdash priority: normal severity: normal status: open title: Segmentation fault when importing hashlib type: crash versions: Python 3.3 ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue16660 ___ ___ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue16660] Segmentation fault when importing hashlib
ashwani added the comment: Following is the behavior on the same machine with Python 2.6.6 ir[65] [~/]$ python Python 2.6.6 (r266:84292, Dec 7 2011, 20:48:22) [GCC 4.4.6 20110731 (Red Hat 4.4.6-3)] on linux2 Type help, copyright, credits or license for more information. import hashlib -- ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue16660 ___ ___ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue16660] Segmentation fault when importing hashlib
Changes by STINNER Victor victor.stin...@gmail.com: -- nosy: +pitrou ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue16660 ___ ___ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue16660] Segmentation fault when importing hashlib
Changes by Antoine Pitrou pit...@free.fr: -- nosy: +gregory.p.smith ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue16660 ___ ___ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue16660] Segmentation fault when importing hashlib
Gregory P. Smith added the comment: Given where the crash is occurring and that faulthandler traceback it makes me wonder if it was compiled with a set of openssl headers that don't make the library it is using at runtime. If you recompile the interpreter in debug mode (--with-pydebug on your ./configure) does it still happen? Can you run it under gdb and get the C stacktrace? that'll tell more than faulthandler alone does. [I'm glad to see you're using faulthandler though!] -- ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue16660 ___ ___ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
