[issue7424] segmentation fault in listextend during install
Changes by Stefan Krah stefan-use...@bytereef.org: -- nosy: -skrah ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue7424 ___ ___ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue7424] segmentation fault in listextend during install
rpointel pyt...@xiri.fr added the comment:
I changed the value from 1000 to 200, and it crashed the same way, then I
tested with 20, and it ran into a runtime error but in a different place:
c++ -pthread -L/home/ports/pobj/Python-2.7.1/Python-2.7.1 -Wl,--export-dynamic
-o python Modules/python.o -lpython2.7 -pthread -lutil -lm
/home/ports/pobj/Python-2.7.1/Python-2.7.1/libpython2.7.so.0.0: warning:
tmpnam() possibly used unsafely; consider using mkstemp()
/home/ports/pobj/Python-2.7.1/Python-2.7.1/libpython2.7.so.0.0: warning:
tempnam() possibly used unsafely; consider using mkstemp()
/home/ports/pobj/Python-2.7.1/Python-2.7.1/libpython2.7.so.0.0: warning:
strcpy() is almost always misused, please use strlcpy()
/home/ports/pobj/Python-2.7.1/Python-2.7.1/libpython2.7.so.0.0: warning:
sprintf() is often misused, please use snprintf()
/home/ports/pobj/Python-2.7.1/Python-2.7.1/libpython2.7.so.0.0: warning:
strcat() is almost always misused, please use strlcat()
Traceback (most recent call last):
File /home/ports/pobj/Python-2.7.1/Python-2.7.1/Lib/site.py, line 553, in
module
main()
File /home/ports/pobj/Python-2.7.1/Python-2.7.1/Lib/site.py, line 535, in
main
known_paths = addusersitepackages(known_paths)
File /home/ports/pobj/Python-2.7.1/Python-2.7.1/Lib/site.py, line 268, in
addusersitepackages
user_site = getusersitepackages()
File /home/ports/pobj/Python-2.7.1/Python-2.7.1/Lib/site.py, line 243, in
getusersitepackages
user_base = getuserbase() # this will also set USER_BASE
File /home/ports/pobj/Python-2.7.1/Python-2.7.1/Lib/site.py, line 233, in
getuserbase
USER_BASE = get_config_var('userbase')
File /home/ports/pobj/Python-2.7.1/Python-2.7.1/Lib/sysconfig.py, line 535,
in get_config_var
return get_config_vars().get(name)
File /home/ports/pobj/Python-2.7.1/Python-2.7.1/Lib/sysconfig.py, line 434,
in get_config_vars
_init_posix(_CONFIG_VARS)
File /home/ports/pobj/Python-2.7.1/Python-2.7.1/Lib/sysconfig.py, line 282,
in _init_posix
_parse_makefile(makefile, vars)
File /home/ports/pobj/Python-2.7.1/Python-2.7.1/Lib/sysconfig.py, line 195,
in _parse_makefile
_variable_rx = re.compile(([a-zA-Z][a-zA-Z0-9_]+)\s*=\s*(.*))
File /home/ports/pobj/Python-2.7.1/Python-2.7.1/Lib/re.py, line 190, in
compile
return _compile(pattern, flags)
File /home/ports/pobj/Python-2.7.1/Python-2.7.1/Lib/re.py, line 243, in
_compile
p = sre_compile.compile(pattern, flags)
File /home/ports/pobj/Python-2.7.1/Python-2.7.1/Lib/sre_compile.py, line
500, in compile
p = sre_parse.parse(p, flags)
File /home/ports/pobj/Python-2.7.1/Python-2.7.1/Lib/sre_parse.py, line 673,
in parse
p = _parse_sub(source, pattern, 0)
File /home/ports/pobj/Python-2.7.1/Python-2.7.1/Lib/sre_parse.py, line 308,
in _parse_sub
itemsappend(_parse(source, state))
File /home/ports/pobj/Python-2.7.1/Python-2.7.1/Lib/sre_parse.py, line 633,
in _parse
p = _parse_sub(source, state)
File /home/ports/pobj/Python-2.7.1/Python-2.7.1/Lib/sre_parse.py, line 308,
in _parse_sub
itemsappend(_parse(source, state))
File /home/ports/pobj/Python-2.7.1/Python-2.7.1/Lib/sre_parse.py, line 381,
in _parse
subpattern = SubPattern(state)
RuntimeError: maximum recursion depth exceeded while calling a Python object
*** Error code 1
Then I tried again with the value set to 100, and it ran into the original
segfault again.
Thanks for your help.
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[issue7424] segmentation fault in listextend during install
Antoine Pitrou pit...@free.fr added the comment: The problem with such issues is that: - they are not reproduceable by someone of the core team - they only seem to occur in non-debug mode - they are probably tied to a specific compiler variant, either because of a compiler bug, or some aggressive optimization combined with some misled assumption in Python's code To narrow it down, you could: - try with other compiler versions - try with other Python versions from python.org (for example the recent 3.2.1) -- ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue7424 ___ ___ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue7424] segmentation fault in listextend during install
Remi Pointel pyt...@xiri.fr added the comment: Thanks Antoine for your response. Python 3.2.1 and Python 2.4.6 have been successfully installed (but Python 2.5.4 and Python 2.7.1 failed). -- ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue7424 ___ ___ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue7424] segmentation fault in listextend during install
Jon Buller j...@bullers.net added the comment: I recently upgraded my SparcStation20 to NetBSD-current and thought I would try installing python again. I found that both 2.7.1 and whatever was the most current 2.5 pkgsrc version as of a few months ago built and installed just fine. I'm sorry I can no longer help debug this, but the bug was very repeatable on 2.6 and 2.7 for several years and often happened with 2.5 as well. But I can no longer repeat it. I also can't say if it is a GCC bug, a NetBSD kernel or libc bug, or a python bug. I was sort of expecting it to be a NetBSD bug since I don't remember ever having problems with x86, amd64, or sparc64 NetBSD systems, but I still believe it could be just about anywhere. Jon -- ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue7424 ___ ___ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue7424] segmentation fault in listextend during install
Stefan Krah stefan-use...@bytereef.org added the comment: Just a guess: it might be a stack overflow. Could you try to reduce Py_DEFAULT_RECURSION_LIMIT in Python/ceval.c and see if you get a RuntimeError instead? See also: issue #1212900 -- ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue7424 ___ ___ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue7424] segmentation fault in listextend during install
rpointel pyt...@xiri.fr added the comment: Hi, we have the same problem on OpenBSD (sparc). You could find more information: http://marc.info/?l=openbsd-portsm=131219537505698 Thanks, Remi. -- ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue7424 ___ ___ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue7424] segmentation fault in listextend during install
Changes by rpointel pyt...@xiri.fr: -- nosy: +rpointel ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue7424 ___ ___ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue7424] segmentation fault in listextend during install
Stefan Krah stefan-use...@bytereef.org added the comment: See also: http://gnats.netbsd.org/42627 -- nosy: +H.Xu, haypo, loewis, skrah ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue7424 ___ ___ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue7424] segmentation fault in listextend during install
Jon Buller j...@bullers.net added the comment: I found that python 2.4.5 will compile and install on this machine, though I don't know if that helps anyone or not, or how to track this down further. (At least I can run mercurial on that machine again.) On 03/11/10 18:16, Jon Buller wrote: Jon Bullerj...@bullers.net added the comment: This is bad. The problem went away and the test completed without the segfault. If you think the output would help track anything down, let me know and I'll save and upload it somewhere. (Or I could hand out an SSH account via IPv6 to the machine... With some effort, I could probably reconfigure my network to get it on one of my 2 IPv4 addresses.) -- ___ Python trackerrep...@bugs.python.org http://bugs.python.org/issue7424 ___ -- ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue7424 ___ ___ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue7424] segmentation fault in listextend during install
Jon Buller j...@bullers.net added the comment: ./configure --without-threads didn't seem to have any effect... :( -- ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue7424 ___ ___ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue7424] segmentation fault in listextend during install
Antoine Pitrou pit...@free.fr added the comment: Can you try to recompile Python in debug mode? (make distclean ./configure --with-pydebug). -- nosy: +pitrou ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue7424 ___ ___ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue7424] segmentation fault in listextend during install
Jon Buller j...@bullers.net added the comment: This is bad. The problem went away and the test completed without the segfault. If you think the output would help track anything down, let me know and I'll save and upload it somewhere. (Or I could hand out an SSH account via IPv6 to the machine... With some effort, I could probably reconfigure my network to get it on one of my 2 IPv4 addresses.) -- ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue7424 ___ ___ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue7424] segmentation fault in listextend during install
Jon Buller j...@bullers.net added the comment: Sorry to not be able to follow up for so long, but I was moving cross-country. I was playing with the tests a bit and ended up trying this: $ ./python -E -tt -d -v -W all ./Lib/test/regrtest.py -l -v -s test_builtin Which resulted (after quite a bit of output) in this: # /usr/pkgsrc/lang/python26/work/Python-2.6.4/Lib/tempfile.pyc matches /usr/pkgsrc/lang/python26/work/Python-2.6.4/Lib/tempfile.py import tempfile # precompiled from /usr/pkgsrc/lang/python26/work/Python-2.6.4/Lib/tempfile.pyc dlopen(/usr/pkgsrc/lang/python26/work/Python-2.6.4/build/lib.netbsd-5.99.24-sparc-2.6/fcntl.so, 2); import fcntl # dynamically loaded from /usr/pkgsrc/lang/python26/work/Python-2.6.4/build/lib.netbsd-5.99.24-sparc-2.6/fcntl.so import thread # builtin test_builtin [1] Segmentation fault ./python -E -tt -d -v -W all ./Lib/test/regrtest.py -l -v -s test_builtin So, is this perhaps a bug either in Python's thread usage, or NetBSD's thread library? Is there an easy way to tell python to build without any threads, even if configure finds the proper system include files and libraries? Is it as simple as ./configure --without-threads when starting the build? (I'm about to try that...) Jon -- ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue7424 ___ ___ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue7424] segmentation fault in listextend during install
Changes by Brian Curtin cur...@acm.org: -- priority: - normal stage: - test needed ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue7424 ___ ___ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue7424] segmentation fault in listextend during install
New submission from Jon Buller j...@bullers.net: On a NetBSD/sparc-current system building from the 2.6.4.tgz file... Compiling /usr/pkg/lib/python2.6/test/test_bool.py ... Compiling /usr/pkg/lib/python2.6/test/test_bsddb.py ... Compiling /usr/pkg/lib/python2.6/test/test_bsddb185.py ... Compiling /usr/pkg/lib/python2.6/test/test_bsddb3.py ... Compiling /usr/pkg/lib/python2.6/test/test_buffer.py ... Compiling /usr/pkg/lib/python2.6/test/test_bufio.py ... Compiling /usr/pkg/lib/python2.6/test/test_builtin.py ... [1] Segmentation fault (core dumped) PYTHONPATH=/usr/... *** Error code 139 Stop. and GDB says... Reading symbols from /usr/lib/libc.so.12...(no debugging symbols found)...done. Loaded symbols for /usr/lib/libc.so.12 Reading symbols from /usr/pkgsrc/lang/python26/work/Python-2.6.4/build/lib.netbsd-5.99.15-sparc-2.6/unicodedata.so... (no debugging symbols found)...done. Loaded symbols for /usr/pkgsrc/lang/python26/work/Python-2.6.4/build/lib.netbsd-5.99.15-sparc-2.6/unicodedata.so Reading symbols from /usr/libexec/ld.elf_so...(no debugging symbols found)...done. Loaded symbols for /usr/libexec/ld.elf_so Core was generated by `python'. Program terminated with signal 11, Segmentation fault. #0 0x200b7bac in listextend () from /usr/pkgsrc/lang/python26/work/Python-2.6.4/libpython2.6.so.1.0 (gdb) where #0 0x200b7bac in listextend () from /usr/pkgsrc/lang/python26/work/Python-2.6.4/libpython2.6.so.1.0 #1 0x20087b00 in PySequence_List () from /usr/pkgsrc/lang/python26/work/Python-2.6.4/libpython2.6.so.1.0 #2 0x20129760 in assemble () from /usr/pkgsrc/lang/python26/work/Python-2.6.4/libpython2.6..so.1.0 #3 0x2012e12c in compiler_function () from /usr/pkgsrc/lang/python26/work/Python-2.6.4/libpython2.6.so.1.0 #4 0x2012e288 in compiler_body () from /usr/pkgsrc/lang/python26/work/Python-2.6.4/libpython2.6.so.1.0 #5 0x2012e498 in compiler_class () from /usr/pkgsrc/lang/python26/work/Python-2.6.4/libpython2.6.so.1.0 #6 0x2012e288 in compiler_body () from /usr/pkgsrc/lang/python26/work/Python-2.6.4/libpython2.6.so.1.0 #7 0x2012e958 in PyAST_Compile () from /usr/pkgsrc/lang/python26/work/Python-2.6.4/libpython2.6.so.1.0 #8 0x20142a48 in Py_CompileStringFlags () from /usr/pkgsrc/lang/python26/work/Python-2.6.4/libpython2.6.so.1.0 ... -- components: Installation messages: 95895 nosy: j...@bullers.net severity: normal status: open title: segmentation fault in listextend during install type: crash versions: Python 2.6 ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue7424 ___ ___ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
