[3.12] gh-116510: Fix a Crash Due to Shared Immortal Interned Strings (gh-124865) #125205
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…ythongh-124865) Fix a crash caused by immortal interned strings being shared between sub-interpreters that use basic single-phase init. In that case, the string can be used by an interpreter that outlives the interpreter that created and interned it. For interpreters that share obmalloc state, also share the interned dict with the main interpreter. This is an un-revert of pythongh-124646 that then addresses the Py_TRACE_REFS failures identified by pythongh-124785. (cherry picked from commit f2cb399) Co-authored-by: Eric Snow <ericsnowcurrently@gmail.com>
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@nascheme I thought the backport wouldn't apply cleanly, but here we are. Do you recall what was different about the 3.12 fix? |
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Please don't merge until the TraceRefs regression is fixed: #124865 (comment) |
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Fix a crash caused by immortal interned strings being shared between
sub-interpreters that use basic single-phase init. In that case, the string
can be used by an interpreter that outlives the interpreter that created and
interned it. For interpreters that share obmalloc state, also share the
interned dict with the main interpreter.
This is an un-revert of gh-124646 that then addresses the Py_TRACE_REFS
failures identified by gh-124785.
(cherry picked from commit f2cb399)
Co-authored-by: Eric Snow ericsnowcurrently@gmail.com