[issue35368] [2.7] Make PyMem_Malloc() thread-safe in debug mode

[STINNER Victor]

STINNER Victor  added the comment:

Let's continue discussion on serialno atomicity on bpo-31473.

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resolution:  -> fixed
stage: patch review -> resolved
status: open -> closed

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[issue35368] [2.7] Make PyMem_Malloc() thread-safe in debug mode

[STINNER Victor]

STINNER Victor  added the comment:

According to bpo-31473, the debug hook on PyMem_Malloc() is not thread-safe: 
'serialno' variable is not protected by any lock and it's not atomic.

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[issue35368] [2.7] Make PyMem_Malloc() thread-safe in debug mode

[STINNER Victor]

Change by STINNER Victor :


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pull_requests: +10102

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[issue35368] [2.7] Make PyMem_Malloc() thread-safe in debug mode

[STINNER Victor]

STINNER Victor  added the comment:


New changeset c275be54411d425c90e7c679ddb5321ba458f61d by Victor Stinner in 
branch '2.7':
bpo-35368: Make PyMem_Malloc() thread-safe in debug mode (GH-10828)
https://github.com/python/cpython/commit/c275be54411d425c90e7c679ddb5321ba458f61d


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[issue35368] [2.7] Make PyMem_Malloc() thread-safe in debug mode

[STINNER Victor]

Change by STINNER Victor :


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keywords: +patch
pull_requests: +10076
stage:  -> patch review

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[issue35368] [2.7] Make PyMem_Malloc() thread-safe in debug mode

[STINNER Victor]

New submission from STINNER Victor :

While fixing bpo-33015, I discovered that PyMem_Malloc() isn't thread-safe when 
Python is compiled in debug mode:
https://bugs.python.org/issue33015#msg330806

I wrote PR 10828 to make PyMem_Malloc() thread-safe when Python is compiled in 
debug mode.

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components: Interpreter Core
messages: 330833
nosy: gregory.p.smith, vstinner
priority: normal
severity: normal
status: open
title: [2.7] Make PyMem_Malloc() thread-safe in debug mode
versions: Python 2.7

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