[issue16212] mmap() dumps core upon resizing the underlying file

[Vladimir Ushakov]

Vladimir Ushakov added the comment:

> ...it's just impossible to guarantee that Python internal structures are still consistent.

In generic case, I completely agree. Here the things are much simpler (unless I missed something). We know perfectly well the code we need to protect (mmap accessors). We can make the protected sections small enough to ensure that no internal state gets corrupted. I just feel, I can do it simply and safely.

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Python tracker <report at bugs.python.org>
<http://bugs.python.org/issue16212>
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