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[3.14] gh-140634: Fix a reference counting bug in os.sched_param.__reduce__() (GH-140667) (GH-140685)

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(cherry picked from commit 364ae607d8)

Co-authored-by: Serhiy Storchaka <storchaka@gmail.com>
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Miss Islington (bot) 2025-10-27 21:08:57 +01:00 • committed by GitHub
parent c1bfd4cb9c
commit 3bb0eb4ca9
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3 changed files with 10 additions and 1 deletions
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8
Lib/test/test_posix.py
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@ -1366,6 +1366,14 @@ def test_sched_param(self):
self.assertNotEqual(newparam, param)
self.assertEqual(newparam.sched_priority, 0)
@requires_sched
def test_bug_140634(self):
sched_priority = float('inf') # any new reference
param = posix.sched_param(sched_priority)
param.__reduce__()
del sched_priority, param # should not crash
support.gc_collect() # just to be sure
@unittest.skipUnless(hasattr(posix, "sched_rr_get_interval"), "no function")
def test_sched_rr_get_interval(self):
try: