Many tests leak references in 3.11 and 3.12, such has test_cgitb: "Speed up Traceback object creation" regression #111947
Description
The backport to 3.11 and 3.12 branches of the issue gh-109181 fix introduced reference leaks.
The following tests fail when run with -R 3:3:
15 tests failed:
test.test_concurrent_futures.test_process_pool
test.test_inspect.test_inspect
test.test_multiprocessing_fork.test_processes
test.test_multiprocessing_forkserver.test_processes
test.test_multiprocessing_spawn.test_processes test_capi
test_cgitb test_exception_group test_exceptions test_idle test_pdb
test_raise test_sys test_threading test_traceback
They don't leak in the main branch who got the same change.
In the 3.12 branch, the leak was introduced by commit 4f619e8:
commit 4f619e83fe1416c9b8d618533a0aaec0b4443b11
Author: Pablo Galindo Salgado <Pablogsal@gmail.com>
Date: Tue Oct 31 18:18:11 2023 +0000
[3.12] gh-109181: Speed up Traceback object creation by lazily compute the line number (GH-111548) (#111551)
.
(cherry picked from commit abb15420c11d9dda9c89f74eac8417240b321109)