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[3.7] bpo-32604: Swap threads only if the interpreter is different. (gh-5778) by miss-islington · Pull Request #5783 · python/cpython · GitHub
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[3.7] bpo-32604: Swap threads only if the interpreter is different. (gh-5778)#5783

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ericsnowcurrently merged 1 commit into
python:3.7from
miss-islington:backport-f53d9f2-3.7
Feb 21, 2018
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[3.7] bpo-32604: Swap threads only if the interpreter is different. (gh-5778)#5783
ericsnowcurrently merged 1 commit into
python:3.7from
miss-islington:backport-f53d9f2-3.7

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miss-islington commented Feb 20, 2018 •
edited by bedevere-bot
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The CPython runtime assumes that there is a one-to-one relationship (for a given interpreter) between PyThreadState and OS threads. Sending and receiving on a channel in the same interpreter was causing crashes because of this (specifically due to a check in PyThreadState_Swap()). The solution is to not switch threads if the interpreter is the same.
(cherry picked from commit f53d9f2)

Co-authored-by: Eric Snow ericsnowcurrently@gmail.com

https://bugs.python.org/issue32604

bpo-32604: Swap threads only if the interpreter is different. (python… …
2f3f233
…gh-5778) The CPython runtime assumes that there is a one-to-one relationship (for a given interpreter) between PyThreadState and OS threads. Sending and receiving on a channel in the same interpreter was causing crashes because of this (specifically due to a check in PyThreadState_Swap()). The solution is to not switch threads if the interpreter is the same. (cherry picked from commit f53d9f2) Co-authored-by: Eric Snow <ericsnowcurrently@gmail.com>
bedevere-bot mentioned this pull request Feb 20, 2018
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miss-islington commented Feb 20, 2018

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@ericsnowcurrently: Backport status check is done, and it's a success ✅ .

ericsnowcurrently merged commit eed3c7a into python:3.7 Feb 21, 2018

miss-islington commented Feb 21, 2018

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Thanks, @ericsnowcurrently!

miss-islington deleted the backport-f53d9f2-3.7 branch February 21, 2018 00:09
ericsnowcurrently mentioned this pull request Apr 10, 2022
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