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[3.11] gh-90473: Reduce recursion limit on WASI even further (GH-94333) (GH-94334)

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Co-authored-by: Christian Heimes <christian@python.org>
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Christian Heimes 2022-06-27 18:33:01 +02:00 • committed by GitHub
parent 4ec146cefd
commit 56f5f90496
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2 changed files with 6 additions and 5 deletions
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7
Include/internal/pycore_ceval.h
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@ -12,11 +12,12 @@ extern "C" {
struct pyruntimestate;
struct _ceval_runtime_state;
/* WASI has limited call stack. wasmtime 0.36 can handle sufficient amount of
C stack frames for little more than 750 recursions. */
/* WASI has limited call stack. Python's recursion limit depends on code
layout, optimization, and WASI runtime. Wasmtime can handle about 700-750
recursions, sometimes less. 600 is a more conservative limit. */
#ifndef Py_DEFAULT_RECURSION_LIMIT
# ifdef __wasi__
# define Py_DEFAULT_RECURSION_LIMIT 750
# define Py_DEFAULT_RECURSION_LIMIT 600
# else
# define Py_DEFAULT_RECURSION_LIMIT 1000
# endif

4
Lib/test/test_tomllib/test_misc.py
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@ -92,8 +92,8 @@ class TestMiscellaneous(unittest.TestCase):
self.assertEqual(obj_copy, expected_obj)
def test_inline_array_recursion_limit(self):
# 470 with default recursion limit
nest_count = int(sys.getrecursionlimit() * 0.47)
# 465 with default recursion limit
nest_count = int(sys.getrecursionlimit() * 0.465)
recursive_array_toml = "arr = " + nest_count * "[" + nest_count * "]"
tomllib.loads(recursive_array_toml)