[Bug 255445] lang/python 3.8/3.9 SIGSEV core dumps in libthr TrueNAS

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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=255445

--- Comment #9 from yocalebo at gmail.com <yocalebo at gmail.com> ---
(In reply to Kubilay Kocak from comment #7)

Hi Kubilay, thanks for adding Victor Stinner to this. Victor will more than
likely be able to give a more definitive reason on why those 2 commits did not
get backported to python3.8 since Victor is the author of those commits :)

Anyways, I have the upstream python bugs for those 2 commits:

https://github.com/python/cpython/commit/9ad58acbe8b90b4d0f2d2e139e38bb5aa32b7fb6
links to https://bugs.python.org/issue19466

https://github.com/python/cpython/commit/4d96b4635aeff1b8ad41d41422ce808ce0b971c8
links to https://bugs.python.org/issue39511

Without those 2 commits, if you take the python script I posted earlier and
simply run a while true loop in the shell repeatedly calling it, you will
notice that it will eventually hang indefinitely. With the 2 commits, the while
true loop runs forever as expected.

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