New submission from Vladimir Ushakov:
The following code crashes the interpreter on Linux:
#!/usr/bin/python3
import mmap
with open('test', 'wb') as f:
f.write(bytes(1))
with open('test', 'r+b') as f:
m = mmap.mmap(f.fileno(), 0)
f.truncate()
a = m[:]
---
It's not specific to the zero size truncation, it's enough if the file size
decreases beyond a page border.
----------
components: IO
messages: 172745
nosy: Vladimir.Ushakov
priority: normal
severity: normal
status: open
title: mmap() dumps core upon resizing the underlying file
type: crash
versions: Python 3.2
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Python tracker <rep...@bugs.python.org>
<http://bugs.python.org/issue16212>
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