Message 412203 - Python tracker

Message412203

Author	vstinner
Recipients	cstratak, miss-islington, sobolevn, vstinner
Date	2022-01-31.14:58:25
SpamBayes Score	-1.0
Marked as misclassified	Yes
Message-id	<1643641105.29.0.318983657353.issue46542@roundup.psfhosted.org>
In-reply-to

Content
test_lib2to3 crash if Python is built with clang when running test_all_project_files() of lib2to3.tests.test_all_fixers.Test_all. This test crash on processing the file: "Lib/lib2to3/tests/data/infinite_recursion.py". The GH-30855 change increased the usage of the stack memory when Python is built with clang: https://github.com/python/cpython/pull/30855#issuecomment-1024884758 * GCC allocates between 544 bytes (-O3) and 608 bytes (-Og) on the stack * clang allocates between 656 bytes (-O3) and 9200 bytes (Og) on the stack

Content

test_lib2to3 crash if Python is built with clang when running test_all_project_files() of lib2to3.tests.test_all_fixers.Test_all. This test crash on processing the file: "Lib/lib2to3/tests/data/infinite_recursion.py".

The GH-30855 change increased the usage of the stack memory when Python is built with clang:
https://github.com/python/cpython/pull/30855#issuecomment-1024884758

* GCC allocates between 544 bytes (-O3) and 608 bytes (-Og) on the stack
* clang allocates between 656 bytes (-O3) and 9200 bytes (Og) on the stack

History
Date	User	Action	Args
2022-01-31 14:58:25	vstinner	set	recipients: + vstinner, cstratak, miss-islington, sobolevn
2022-01-31 14:58:25	vstinner	set	messageid: <1643641105.29.0.318983657353.issue46542@roundup.psfhosted.org>
2022-01-31 14:58:25	vstinner	link	issue46542 messages
2022-01-31 14:58:25	vstinner	create