I'm getting a crash with Python compiled from a freshly updated CVS tree,
even when running just './python'. It crashes during the loading of os.pyc.
It doesn't crash if I start python with -S, and it doesn't crash if I remove
*.pyc first:
centurion:~/python/python-2.2/dist/src/linux> ./python
Python 2.2a0 (#4, May 9 2001, 09:52:29)
[GCC 2.95.4 20010506 (Debian prerelease)] on linux2
Type "copyright", "credits" or "license" for more information.
>>>
centurion:~/python/python-2.2/dist/src/linux> ./python
Segmentation fault
If I remove os.pyc only, I get the enlightning:
Fatal Python error: PyString_InternInPlace: strings only please!
Abort (core dumped)
I would blame Tim <wink>, except that when examining the corefile I found
some pointers to other causes. The 'original' crash occurs because
cmp_outcome() is passed an invalid PyObject, with most of its function slots
pointing to the middle of the glibc-internal '__morecore()' function.
Examining the stack off of which the invalid item was popped reveals that
the next-to-last item is an iterator. So maybe I should blame Guido instead,
either for the iterator or for rich comparisons ;)
>From what I can tell, the segfault happens in os.py, here:
import posixpath
path = posixpath
del posixpath
import posix
__all__.extend(_get_exports_list(posix))
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
del posix
elif 'nt' in _names:
That is, after importing posix, while getting the exports lists. Which, in
the case of posixmodule, uses a list comprehension.... which now uses an
iterator... so maybe it's Tim after all. :-)
Unfortunately, I don't have time to look at it right now (meetings,
meetings.) If noone is looking at it by the time I'm back and free, I'll
hunt some more ;)
--
Thomas Wouters <thomas@xs4all.net>
Hi! I'm a .signature virus! copy me into your .signature file to help me spread!
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