Message 361689 - Python tracker

Message361689

Author	jd
Recipients	jd
Date	2020-02-10.12:54:16
SpamBayes Score	-1.0
Marked as misclassified	Yes
Message-id	<1581339256.79.0.552474006467.issue39599@roundup.psfhosted.org>
In-reply-to

Content
As I've reported originally on the python-dev list, there seems to be an ABI breakage between 3.7.4 and 3.7.5. https://mail.python.org/archives/list/python-dev@python.org/message/J2FGZPS5PS7473TONJTPAVSNXRGV3TFL/ The culprit commit is https://github.com/python/cpython/commit/8766cb74e186d3820db0a855ccd780d6d84461f7 This happens on a custom C module (built via Cython) when using including <internal/pystate.h> with -DPy_BUILD_CORE. I'm not sure it'd happen otherwise. I've tried to provide a minimal use case, but since it seems to be a memory overflow, the backtrace does not make any sense and it's hard to reproduce without the orignal code.

Content

As I've reported originally on the python-dev list, there seems to be an ABI breakage between 3.7.4 and 3.7.5.

https://mail.python.org/archives/list/python-dev@python.org/message/J2FGZPS5PS7473TONJTPAVSNXRGV3TFL/

The culprit commit is https://github.com/python/cpython/commit/8766cb74e186d3820db0a855ccd780d6d84461f7

This happens on a custom C module (built via Cython) when using including <internal/pystate.h> with -DPy_BUILD_CORE. I'm not sure it'd happen otherwise.

I've tried to provide a minimal use case, but since it seems to be a memory overflow, the backtrace does not make any sense and it's hard to reproduce without the orignal code.

History
Date	User	Action	Args
2020-02-10 12:54:16	jd	set	recipients: + jd
2020-02-10 12:54:16	jd	set	messageid: <1581339256.79.0.552474006467.issue39599@roundup.psfhosted.org>
2020-02-10 12:54:16	jd	link	issue39599 messages
2020-02-10 12:54:16	jd	create