[issue32818] multiprocessing segmentfault under Windows compatibility mode

[Ma Lin]

Ma Lin <malincns at 163.com> added the comment:

segmentfault conditions:
64bit Windows + 32bit Python + Compatibility Mode enabled.

some infomation:
1, 64bit Python doesn't segmentfault.
2, 3.7.0a3 is ok, 3.7.0a4 segmentfaults.
3, unrelated to Windows SDK, switch from 1709 SDK to 1703 SDK also segmentfaults.

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Python tracker <report at bugs.python.org>
<https://bugs.python.org/issue32818>
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