Message 117754 - Python tracker

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Author	kermode
Recipients	kermode
Date	2010-09-30.17:46:45
SpamBayes Score	0.003628175
Marked as misclassified	No
Message-id	<[email protected]>
In-reply-to

Content
Python 3.2a2+ (py3k:85072M, Sep 29 2010, 12:11:17) (from SVN) [GCC 4.4.5 20100728 (prerelease)] on linux2 (Debian squeeze) The ~Py_buffer.obj field is undocumented. Yet memoryview, that acts as a wrapper, includes the field in gc traversal. Also, if the field is not initialized by bf_getbuffer its value can be indeterminate. For memoryview the gc can crash (see attached C demo program).

Python 3.2a2+ (py3k:85072M, Sep 29 2010, 12:11:17) (from SVN)
[GCC 4.4.5 20100728 (prerelease)] on linux2 (Debian squeeze)

The ~Py_buffer.obj field is undocumented. Yet memoryview, that acts as a wrapper, includes the field in gc traversal. Also, if the field is not initialized by bf_getbuffer its value can be indeterminate. For memoryview the gc can crash (see attached C demo program).

History
Date	User	Action	Args
2010-09-30 17:46:48	kermode	set	recipients: + kermode
2010-09-30 17:46:47	kermode	set	messageid: <[email protected]>
2010-09-30 17:46:45	kermode	link	issue10001 messages
2010-09-30 17:46:45	kermode	create