[issue40720] accessing mmap of file that is overwritten causes bus error

[Marten H. van Kerkwijk]

Marten H. van Kerkwijk <mhvk at astro.utoronto.ca> added the comment:

I should probably have added that the bus error happens on linux. On Windows, the opening of the file for writing leads to an error, as the file is still opened for reading inside the mmap.

----------

_______________________________________
Python tracker <report at bugs.python.org>
<https://bugs.python.org/issue40720>
_______________________________________