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

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@miss-islington

@miss-islington 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 [email protected]

https://bugs.python.org/issue32604

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@ericsnowcurrently @miss-islington
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 <[email protected]>
@bedevere-bot bedevere-bot added the skip news label Feb 20, 2018
@bedevere-bot bedevere-bot mentioned this pull request Feb 20, 2018
bpo-32604: Swap threads only if the interpreter is different. #5778
Merged
@the-knights-who-say-ni the-knights-who-say-ni added the CLA signed label Feb 20, 2018
@bedevere-bot bedevere-bot added the awaiting review label Feb 20, 2018
@miss-islington

miss-islington commented Feb 20, 2018

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@ericsnowcurrently: Backport status check is done, and it's a success ✅ .
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@ericsnowcurrently
ericsnowcurrently merged commit eed3c7a into python:3.7 Feb 21, 2018
@miss-islington

miss-islington commented Feb 21, 2018

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Thanks, @ericsnowcurrently!
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@bedevere-bot bedevere-bot removed the awaiting review label Feb 21, 2018
@miss-islington
miss-islington deleted the backport-f53d9f2-3.7 branch February 21, 2018 00:09
@ericsnowcurrently ericsnowcurrently mentioned this pull request Apr 10, 2022
[subinterpreters] PEP 554 implementation: add interpreters module #76785
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@miss-islington @ericsnowcurrently @the-knights-who-say-ni @bedevere-bot
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