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Add support for thread sanitizer (TSAN) via --with-thread-sanitizer #112536
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- added 5 commits that reference this issue
on Mar 10, 2024 41 remaining items
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on Apr 10, 2024 - added 7 commits that reference this issue
on Apr 17, 2024 hello, possible to backport this to 3.10 too ?
Unfortunately, 3.8 to 3.11 are security-only branches. As such, they would not accept such backports. The 3.11 backport was not merged since it was close to the last bugfix deadline.
Feature or enhancement
GCC and Clang provide ThreadSanitizer, a tool that detects data races. We should add support for thread sanitizer to CPython. Note that Python already supports the memory and address sanitizers.
--with-thread-sanitizeras a configure option_Py_THREAD_SANITIZERif thread-sanitizer is enabled (see, e.g.,_Py_ADDRESS_SANITIZERinpyport.h)_Py_NO_SANITIZE_THREADfromobmalloc.cto a place that's more widely available (likepyport.h). We're going to need this in a few placesEventually, it would be helpful to have a continuous build for the combination of
--disable-gil --with-thread-sanitizer. Note that we probably won't want to run all the tests. ThreadSanitizer is slow and also not very useful for single-threaded tests. We should collect a subset of our tests that use threading for the ThreadSanitizer continuous build.Linked PRs
_Py_THREAD_SANITIZERon GCC when TSan is enabled #117702_Py_THREAD_SANITIZERon GCC when TSan is enabled (GH-117702) #117713