[issue11277] Crash with mmap and sparse files on Mac OS X

[STINNER Victor]

STINNER Victor <victor.stinner at haypocalc.com> added the comment:

I am not able to check the fix, but the buildbots are :-)

What should be done for Python 2.7? In Python 2.7, zlib.crc32() stores the buffer length into an int (so the maximum length is INT_MAX), and so test_zlib doesn't test a (sparse) file of 4 GB (ChecksumBigBufferTestCase).

But I suppose that mmap bug can also occur with a file of 2 GB.

@sdaoden: Can you try on Python 2.7?

----------

_______________________________________
Python tracker <report at bugs.python.org>
<http://bugs.python.org/issue11277>
_______________________________________